/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 15:24:01,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 15:24:01,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 15:24:01,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 15:24:01,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 15:24:01,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 15:24:01,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 15:24:01,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 15:24:01,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 15:24:01,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 15:24:01,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 15:24:01,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 15:24:01,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 15:24:01,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 15:24:01,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 15:24:01,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 15:24:01,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 15:24:01,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 15:24:01,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 15:24:01,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 15:24:01,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 15:24:01,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 15:24:01,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 15:24:01,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 15:24:01,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 15:24:01,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 15:24:01,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 15:24:01,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 15:24:01,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 15:24:01,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 15:24:01,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 15:24:01,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 15:24:01,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 15:24:01,185 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 15:24:01,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 15:24:01,185 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 15:24:01,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 15:24:01,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 15:24:01,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 15:24:01,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 15:24:01,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 15:24:01,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 15:24:01,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 15:24:01,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 15:24:01,187 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 15:24:01,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 15:24:01,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 15:24:01,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 15:24:01,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 15:24:01,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 15:24:01,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 15:24:01,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 15:24:01,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 15:24:01,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 15:24:01,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 15:24:01,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 15:24:01,189 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 15:24:01,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 15:24:01,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 15:24:01,190 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 15:24:01,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 15:24:01,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 15:24:01,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 15:24:01,507 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 15:24:01,511 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 15:24:01,512 INFO L432 ainManager$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 [2021-03-26 15:24:01,512 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl' [2021-03-26 15:24:01,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 15:24:01,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 15:24:01,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 15:24:01,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 15:24:01,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 15:24:01,567 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 26.03 03:24:01" (1/1) ... [2021-03-26 15:24:01,572 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 26.03 03:24:01" (1/1) ... [2021-03-26 15:24:01,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 15:24:01,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 15:24:01,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 15:24:01,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 15:24:01,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:24:01" (1/1) ... [2021-03-26 15:24:01,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:24:01" (1/1) ... [2021-03-26 15:24:01,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:24:01" (1/1) ... [2021-03-26 15:24:01,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:24:01" (1/1) ... [2021-03-26 15:24:01,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:24:01" (1/1) ... [2021-03-26 15:24:01,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:24:01" (1/1) ... [2021-03-26 15:24:01,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:24:01" (1/1) ... [2021-03-26 15:24:01,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 15:24:01,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 15:24:01,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 15:24:01,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 15:24:01,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:24:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 15:24:01,656 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 15:24:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 15:24:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 15:24:01,657 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 15:24:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 15:24:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 15:24:01,657 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 15:24:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 15:24:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 15:24:01,658 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-26 15:24:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-26 15:24:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-26 15:24:01,658 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-26 15:24:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-26 15:24:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-26 15:24:01,659 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 15:24:01,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 15:24:01,900 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 15:24:01,901 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:24:01 BoogieIcfgContainer [2021-03-26 15:24:01,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 15:24:01,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 15:24:01,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 15:24:01,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 15:24:01,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:24:01" (1/2) ... [2021-03-26 15:24:01,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28320794 and model type ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:24:01, skipping insertion in model container [2021-03-26 15:24:01,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:24:01" (2/2) ... [2021-03-26 15:24:01,913 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-4.wvr.bpl [2021-03-26 15:24:01,918 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 15:24:01,921 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 15:24:01,921 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 15:24:01,993 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-26 15:24:02,008 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 15:24:02,025 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 15:24:02,025 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 15:24:02,025 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 15:24:02,025 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 15:24:02,025 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 15:24:02,026 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 15:24:02,026 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 15:24:02,026 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 15:24:02,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 38 transitions, 108 flow [2021-03-26 15:24:02,058 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-26 15:24:02,058 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 15:24:02,060 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. [2021-03-26 15:24:02,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 38 transitions, 108 flow [2021-03-26 15:24:02,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 32 transitions, 88 flow [2021-03-26 15:24:02,065 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:02,077 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 32 transitions, 88 flow [2021-03-26 15:24:02,080 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 32 transitions, 88 flow [2021-03-26 15:24:02,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 32 transitions, 88 flow [2021-03-26 15:24:02,097 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-26 15:24:02,097 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 15:24:02,097 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. [2021-03-26 15:24:02,100 INFO L142 LiptonReduction]: Number of co-enabled transitions 456 [2021-03-26 15:24:02,954 INFO L154 LiptonReduction]: Checked pairs total: 618 [2021-03-26 15:24:02,954 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-26 15:24:02,956 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 892 [2021-03-26 15:24:02,966 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 15:24:02,967 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 15:24:02,967 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:02,967 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:02,968 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:02,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:02,972 INFO L82 PathProgramCache]: Analyzing trace with hash 807092125, now seen corresponding path program 1 times [2021-03-26 15:24:02,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:02,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809624392] [2021-03-26 15:24:02,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:03,120 INFO L142 QuantifierPusher]: treesize reduction 17, result has 43.3 percent of original size [2021-03-26 15:24:03,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 15:24:03,140 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 15:24:03,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 15:24:03,147 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 15:24:03,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 15:24:03,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:03,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 15:24:03,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:03,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:03,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:03,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 15:24:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:03,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809624392] [2021-03-26 15:24:03,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:03,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 15:24:03,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467881255] [2021-03-26 15:24:03,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:24:03,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:03,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:24:03,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:24:03,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 50 [2021-03-26 15:24:03,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 64 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) [2021-03-26 15:24:03,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:03,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 50 [2021-03-26 15:24:03,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:03,324 INFO L129 PetriNetUnfolder]: 231/433 cut-off events. [2021-03-26 15:24:03,324 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2021-03-26 15:24:03,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 433 events. 231/433 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2137 event pairs, 100 based on Foata normal form. 1/431 useless extension candidates. Maximal degree in co-relation 846. Up to 216 conditions per place. [2021-03-26 15:24:03,333 INFO L132 encePairwiseOnDemand]: 39/50 looper letters, 18 selfloop transitions, 9 changer transitions 1/37 dead transitions. [2021-03-26 15:24:03,334 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 154 flow [2021-03-26 15:24:03,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 15:24:03,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 15:24:03,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2021-03-26 15:24:03,344 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.696 [2021-03-26 15:24:03,344 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 174 transitions. [2021-03-26 15:24:03,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 174 transitions. [2021-03-26 15:24:03,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:03,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 174 transitions. [2021-03-26 15:24:03,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:03,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:03,362 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:03,363 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 64 flow. Second operand 5 states and 174 transitions. [2021-03-26 15:24:03,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 154 flow [2021-03-26 15:24:03,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 138 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-26 15:24:03,368 INFO L241 Difference]: Finished difference. Result has 32 places, 27 transitions, 112 flow [2021-03-26 15:24:03,370 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=32, PETRI_TRANSITIONS=27} [2021-03-26 15:24:03,370 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2021-03-26 15:24:03,370 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:03,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 27 transitions, 112 flow [2021-03-26 15:24:03,371 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 27 transitions, 112 flow [2021-03-26 15:24:03,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 112 flow [2021-03-26 15:24:03,432 INFO L129 PetriNetUnfolder]: 63/175 cut-off events. [2021-03-26 15:24:03,432 INFO L130 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2021-03-26 15:24:03,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 175 events. 63/175 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 878 event pairs, 33 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 341. Up to 96 conditions per place. [2021-03-26 15:24:03,437 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 15:24:03,455 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:03,456 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:03,456 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-03-26 15:24:03,458 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 112 flow [2021-03-26 15:24:03,459 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) [2021-03-26 15:24:03,459 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:03,459 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:03,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 15:24:03,459 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:03,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:03,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1384460157, now seen corresponding path program 2 times [2021-03-26 15:24:03,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:03,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521154828] [2021-03-26 15:24:03,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:03,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:03,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:03,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:03,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:03,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:03,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:03,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:03,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:03,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:03,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:03,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521154828] [2021-03-26 15:24:03,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:03,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:24:03,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589165494] [2021-03-26 15:24:03,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:24:03,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:03,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:24:03,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:24:03,523 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2021-03-26 15:24:03,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:03,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:03,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2021-03-26 15:24:03,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:03,757 INFO L129 PetriNetUnfolder]: 451/820 cut-off events. [2021-03-26 15:24:03,758 INFO L130 PetriNetUnfolder]: For 468/506 co-relation queries the response was YES. [2021-03-26 15:24:03,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2455 conditions, 820 events. 451/820 cut-off events. For 468/506 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4494 event pairs, 95 based on Foata normal form. 20/836 useless extension candidates. Maximal degree in co-relation 2392. Up to 339 conditions per place. [2021-03-26 15:24:03,765 INFO L132 encePairwiseOnDemand]: 40/50 looper letters, 24 selfloop transitions, 29 changer transitions 0/62 dead transitions. [2021-03-26 15:24:03,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 62 transitions, 368 flow [2021-03-26 15:24:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 15:24:03,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 15:24:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 193 transitions. [2021-03-26 15:24:03,768 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6433333333333333 [2021-03-26 15:24:03,768 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 193 transitions. [2021-03-26 15:24:03,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 193 transitions. [2021-03-26 15:24:03,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:03,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 193 transitions. [2021-03-26 15:24:03,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:03,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:03,771 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:03,771 INFO L185 Difference]: Start difference. First operand has 32 places, 27 transitions, 112 flow. Second operand 6 states and 193 transitions. [2021-03-26 15:24:03,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 62 transitions, 368 flow [2021-03-26 15:24:03,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 62 transitions, 338 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 15:24:03,774 INFO L241 Difference]: Finished difference. Result has 36 places, 51 transitions, 307 flow [2021-03-26 15:24:03,775 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=307, PETRI_PLACES=36, PETRI_TRANSITIONS=51} [2021-03-26 15:24:03,775 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2021-03-26 15:24:03,775 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:03,776 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 51 transitions, 307 flow [2021-03-26 15:24:03,776 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 51 transitions, 307 flow [2021-03-26 15:24:03,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 51 transitions, 307 flow [2021-03-26 15:24:03,815 INFO L129 PetriNetUnfolder]: 262/568 cut-off events. [2021-03-26 15:24:03,815 INFO L130 PetriNetUnfolder]: For 442/483 co-relation queries the response was YES. [2021-03-26 15:24:03,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1715 conditions, 568 events. 262/568 cut-off events. For 442/483 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3324 event pairs, 51 based on Foata normal form. 10/564 useless extension candidates. Maximal degree in co-relation 1651. Up to 274 conditions per place. [2021-03-26 15:24:03,821 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-26 15:24:03,970 INFO L154 LiptonReduction]: Checked pairs total: 25 [2021-03-26 15:24:03,970 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:24:03,971 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 196 [2021-03-26 15:24:03,972 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 51 transitions, 309 flow [2021-03-26 15:24:03,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:03,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:03,973 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:03,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 15:24:03,973 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:03,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:03,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1516261411, now seen corresponding path program 3 times [2021-03-26 15:24:03,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:03,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182974873] [2021-03-26 15:24:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:04,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:04,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:04,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:04,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:04,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:04,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:04,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:04,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:04,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182974873] [2021-03-26 15:24:04,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:04,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 15:24:04,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257858572] [2021-03-26 15:24:04,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 15:24:04,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:04,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 15:24:04,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 15:24:04,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 51 [2021-03-26 15:24:04,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 51 transitions, 309 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:04,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:04,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 51 [2021-03-26 15:24:04,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:04,239 INFO L129 PetriNetUnfolder]: 482/880 cut-off events. [2021-03-26 15:24:04,239 INFO L130 PetriNetUnfolder]: For 1003/1080 co-relation queries the response was YES. [2021-03-26 15:24:04,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3430 conditions, 880 events. 482/880 cut-off events. For 1003/1080 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4742 event pairs, 93 based on Foata normal form. 31/907 useless extension candidates. Maximal degree in co-relation 3359. Up to 697 conditions per place. [2021-03-26 15:24:04,247 INFO L132 encePairwiseOnDemand]: 43/51 looper letters, 50 selfloop transitions, 26 changer transitions 0/85 dead transitions. [2021-03-26 15:24:04,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 85 transitions, 688 flow [2021-03-26 15:24:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 15:24:04,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 15:24:04,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2021-03-26 15:24:04,251 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6196078431372549 [2021-03-26 15:24:04,251 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 158 transitions. [2021-03-26 15:24:04,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 158 transitions. [2021-03-26 15:24:04,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:04,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 158 transitions. [2021-03-26 15:24:04,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:04,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 51.0) internal successors, (306), 6 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:04,255 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 51.0) internal successors, (306), 6 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:04,255 INFO L185 Difference]: Start difference. First operand has 36 places, 51 transitions, 309 flow. Second operand 5 states and 158 transitions. [2021-03-26 15:24:04,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 85 transitions, 688 flow [2021-03-26 15:24:04,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 85 transitions, 667 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-26 15:24:04,263 INFO L241 Difference]: Finished difference. Result has 41 places, 72 transitions, 563 flow [2021-03-26 15:24:04,264 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=563, PETRI_PLACES=41, PETRI_TRANSITIONS=72} [2021-03-26 15:24:04,264 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2021-03-26 15:24:04,264 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:04,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 72 transitions, 563 flow [2021-03-26 15:24:04,265 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 72 transitions, 563 flow [2021-03-26 15:24:04,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 72 transitions, 563 flow [2021-03-26 15:24:04,307 INFO L129 PetriNetUnfolder]: 276/582 cut-off events. [2021-03-26 15:24:04,307 INFO L130 PetriNetUnfolder]: For 929/988 co-relation queries the response was YES. [2021-03-26 15:24:04,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2036 conditions, 582 events. 276/582 cut-off events. For 929/988 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 3382 event pairs, 48 based on Foata normal form. 17/586 useless extension candidates. Maximal degree in co-relation 1977. Up to 288 conditions per place. [2021-03-26 15:24:04,313 INFO L142 LiptonReduction]: Number of co-enabled transitions 258 [2021-03-26 15:24:04,637 INFO L154 LiptonReduction]: Checked pairs total: 132 [2021-03-26 15:24:04,638 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 15:24:04,638 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 374 [2021-03-26 15:24:04,639 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 72 transitions, 571 flow [2021-03-26 15:24:04,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:04,640 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:04,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:04,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 15:24:04,640 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:04,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:04,640 INFO L82 PathProgramCache]: Analyzing trace with hash 2037627309, now seen corresponding path program 1 times [2021-03-26 15:24:04,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:04,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785843124] [2021-03-26 15:24:04,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:04,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:04,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:04,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:04,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:04,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:04,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:04,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:04,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:04,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:04,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:04,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:04,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785843124] [2021-03-26 15:24:04,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:04,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:24:04,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130868361] [2021-03-26 15:24:04,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:24:04,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:04,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:24:04,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:24:04,710 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2021-03-26 15:24:04,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 72 transitions, 571 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) [2021-03-26 15:24:04,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:04,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2021-03-26 15:24:04,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:04,903 INFO L129 PetriNetUnfolder]: 496/921 cut-off events. [2021-03-26 15:24:04,903 INFO L130 PetriNetUnfolder]: For 1934/2035 co-relation queries the response was YES. [2021-03-26 15:24:04,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3946 conditions, 921 events. 496/921 cut-off events. For 1934/2035 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5273 event pairs, 91 based on Foata normal form. 51/968 useless extension candidates. Maximal degree in co-relation 3872. Up to 370 conditions per place. [2021-03-26 15:24:04,910 INFO L132 encePairwiseOnDemand]: 42/55 looper letters, 26 selfloop transitions, 62 changer transitions 0/97 dead transitions. [2021-03-26 15:24:04,910 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 97 transitions, 947 flow [2021-03-26 15:24:04,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 15:24:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 15:24:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2021-03-26 15:24:04,912 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6090909090909091 [2021-03-26 15:24:04,912 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 201 transitions. [2021-03-26 15:24:04,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 201 transitions. [2021-03-26 15:24:04,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:04,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 201 transitions. [2021-03-26 15:24:04,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:04,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:04,914 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:04,914 INFO L185 Difference]: Start difference. First operand has 41 places, 72 transitions, 571 flow. Second operand 6 states and 201 transitions. [2021-03-26 15:24:04,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 97 transitions, 947 flow [2021-03-26 15:24:04,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 97 transitions, 942 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 15:24:04,921 INFO L241 Difference]: Finished difference. Result has 46 places, 86 transitions, 865 flow [2021-03-26 15:24:04,921 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=865, PETRI_PLACES=46, PETRI_TRANSITIONS=86} [2021-03-26 15:24:04,921 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2021-03-26 15:24:04,921 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:04,921 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 86 transitions, 865 flow [2021-03-26 15:24:04,922 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 86 transitions, 865 flow [2021-03-26 15:24:04,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 86 transitions, 865 flow [2021-03-26 15:24:04,962 INFO L129 PetriNetUnfolder]: 283/604 cut-off events. [2021-03-26 15:24:04,963 INFO L130 PetriNetUnfolder]: For 1636/1732 co-relation queries the response was YES. [2021-03-26 15:24:04,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2636 conditions, 604 events. 283/604 cut-off events. For 1636/1732 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3646 event pairs, 43 based on Foata normal form. 21/615 useless extension candidates. Maximal degree in co-relation 2579. Up to 302 conditions per place. [2021-03-26 15:24:04,968 INFO L142 LiptonReduction]: Number of co-enabled transitions 274 [2021-03-26 15:24:05,391 INFO L154 LiptonReduction]: Checked pairs total: 222 [2021-03-26 15:24:05,391 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 15:24:05,391 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 470 [2021-03-26 15:24:05,392 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 86 transitions, 877 flow [2021-03-26 15:24:05,392 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) [2021-03-26 15:24:05,393 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:05,393 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:05,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 15:24:05,393 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:05,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:05,393 INFO L82 PathProgramCache]: Analyzing trace with hash -735684702, now seen corresponding path program 1 times [2021-03-26 15:24:05,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:05,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35000263] [2021-03-26 15:24:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:05,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:05,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:05,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:05,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:05,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:05,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:05,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:05,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:05,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35000263] [2021-03-26 15:24:05,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:05,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 15:24:05,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762254544] [2021-03-26 15:24:05,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 15:24:05,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:05,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 15:24:05,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 15:24:05,424 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 61 [2021-03-26 15:24:05,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 86 transitions, 877 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) [2021-03-26 15:24:05,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:05,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 61 [2021-03-26 15:24:05,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:05,597 INFO L129 PetriNetUnfolder]: 488/915 cut-off events. [2021-03-26 15:24:05,597 INFO L130 PetriNetUnfolder]: For 2844/2959 co-relation queries the response was YES. [2021-03-26 15:24:05,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4604 conditions, 915 events. 488/915 cut-off events. For 2844/2959 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5263 event pairs, 155 based on Foata normal form. 47/958 useless extension candidates. Maximal degree in co-relation 4534. Up to 709 conditions per place. [2021-03-26 15:24:05,605 INFO L132 encePairwiseOnDemand]: 47/61 looper letters, 55 selfloop transitions, 42 changer transitions 0/106 dead transitions. [2021-03-26 15:24:05,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 106 transitions, 1256 flow [2021-03-26 15:24:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 15:24:05,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 15:24:05,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2021-03-26 15:24:05,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5606557377049181 [2021-03-26 15:24:05,606 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 171 transitions. [2021-03-26 15:24:05,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 171 transitions. [2021-03-26 15:24:05,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:05,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 171 transitions. [2021-03-26 15:24:05,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:05,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 61.0) internal successors, (366), 6 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:05,608 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 61.0) internal successors, (366), 6 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:05,608 INFO L185 Difference]: Start difference. First operand has 46 places, 86 transitions, 877 flow. Second operand 5 states and 171 transitions. [2021-03-26 15:24:05,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 106 transitions, 1256 flow [2021-03-26 15:24:05,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 106 transitions, 1169 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 15:24:05,616 INFO L241 Difference]: Finished difference. Result has 49 places, 96 transitions, 1042 flow [2021-03-26 15:24:05,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1042, PETRI_PLACES=49, PETRI_TRANSITIONS=96} [2021-03-26 15:24:05,617 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2021-03-26 15:24:05,617 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:05,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 96 transitions, 1042 flow [2021-03-26 15:24:05,617 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 96 transitions, 1042 flow [2021-03-26 15:24:05,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 96 transitions, 1042 flow [2021-03-26 15:24:05,667 INFO L129 PetriNetUnfolder]: 289/619 cut-off events. [2021-03-26 15:24:05,668 INFO L130 PetriNetUnfolder]: For 2075/2178 co-relation queries the response was YES. [2021-03-26 15:24:05,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 619 events. 289/619 cut-off events. For 2075/2178 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3676 event pairs, 40 based on Foata normal form. 35/648 useless extension candidates. Maximal degree in co-relation 2608. Up to 312 conditions per place. [2021-03-26 15:24:05,675 INFO L142 LiptonReduction]: Number of co-enabled transitions 276 [2021-03-26 15:24:05,976 INFO L154 LiptonReduction]: Checked pairs total: 132 [2021-03-26 15:24:05,976 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 15:24:05,976 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 359 [2021-03-26 15:24:05,977 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 95 transitions, 1052 flow [2021-03-26 15:24:05,977 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) [2021-03-26 15:24:05,977 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:05,977 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:05,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 15:24:05,977 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:05,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:05,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1758734323, now seen corresponding path program 1 times [2021-03-26 15:24:05,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:05,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780434687] [2021-03-26 15:24:05,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:05,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:05,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:05,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:05,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:06,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:06,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780434687] [2021-03-26 15:24:06,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:06,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 15:24:06,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256862454] [2021-03-26 15:24:06,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 15:24:06,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:06,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 15:24:06,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 15:24:06,009 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2021-03-26 15:24:06,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 95 transitions, 1052 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) [2021-03-26 15:24:06,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:06,009 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2021-03-26 15:24:06,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:06,169 INFO L129 PetriNetUnfolder]: 357/698 cut-off events. [2021-03-26 15:24:06,169 INFO L130 PetriNetUnfolder]: For 2588/2698 co-relation queries the response was YES. [2021-03-26 15:24:06,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3658 conditions, 698 events. 357/698 cut-off events. For 2588/2698 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4006 event pairs, 67 based on Foata normal form. 35/729 useless extension candidates. Maximal degree in co-relation 3595. Up to 531 conditions per place. [2021-03-26 15:24:06,175 INFO L132 encePairwiseOnDemand]: 50/65 looper letters, 53 selfloop transitions, 49 changer transitions 1/112 dead transitions. [2021-03-26 15:24:06,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 112 transitions, 1458 flow [2021-03-26 15:24:06,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 15:24:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 15:24:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2021-03-26 15:24:06,177 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5230769230769231 [2021-03-26 15:24:06,177 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 170 transitions. [2021-03-26 15:24:06,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 170 transitions. [2021-03-26 15:24:06,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:06,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 170 transitions. [2021-03-26 15:24:06,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:06,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:06,178 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:06,178 INFO L185 Difference]: Start difference. First operand has 48 places, 95 transitions, 1052 flow. Second operand 5 states and 170 transitions. [2021-03-26 15:24:06,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 112 transitions, 1458 flow [2021-03-26 15:24:06,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 112 transitions, 1314 flow, removed 28 selfloop flow, removed 4 redundant places. [2021-03-26 15:24:06,190 INFO L241 Difference]: Finished difference. Result has 49 places, 104 transitions, 1184 flow [2021-03-26 15:24:06,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, 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} [2021-03-26 15:24:06,190 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2021-03-26 15:24:06,190 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:06,191 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 104 transitions, 1184 flow [2021-03-26 15:24:06,191 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 104 transitions, 1184 flow [2021-03-26 15:24:06,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 104 transitions, 1184 flow [2021-03-26 15:24:06,233 INFO L129 PetriNetUnfolder]: 272/562 cut-off events. [2021-03-26 15:24:06,233 INFO L130 PetriNetUnfolder]: For 1858/1936 co-relation queries the response was YES. [2021-03-26 15:24:06,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2395 conditions, 562 events. 272/562 cut-off events. For 1858/1936 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3139 event pairs, 36 based on Foata normal form. 32/590 useless extension candidates. Maximal degree in co-relation 2332. Up to 296 conditions per place. [2021-03-26 15:24:06,238 INFO L142 LiptonReduction]: Number of co-enabled transitions 204 [2021-03-26 15:24:06,254 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:06,254 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:06,254 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-26 15:24:06,255 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 104 transitions, 1184 flow [2021-03-26 15:24:06,255 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) [2021-03-26 15:24:06,255 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:06,255 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:06,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 15:24:06,255 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:06,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:06,256 INFO L82 PathProgramCache]: Analyzing trace with hash 433024421, now seen corresponding path program 2 times [2021-03-26 15:24:06,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:06,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097022787] [2021-03-26 15:24:06,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:06,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:06,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:06,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097022787] [2021-03-26 15:24:06,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:06,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 15:24:06,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606326600] [2021-03-26 15:24:06,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:24:06,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:06,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:24:06,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:24:06,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2021-03-26 15:24:06,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 104 transitions, 1184 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) [2021-03-26 15:24:06,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:06,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2021-03-26 15:24:06,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:06,525 INFO L129 PetriNetUnfolder]: 371/753 cut-off events. [2021-03-26 15:24:06,525 INFO L130 PetriNetUnfolder]: For 2191/2219 co-relation queries the response was YES. [2021-03-26 15:24:06,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3742 conditions, 753 events. 371/753 cut-off events. For 2191/2219 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4415 event pairs, 54 based on Foata normal form. 14/766 useless extension candidates. Maximal degree in co-relation 3667. Up to 363 conditions per place. [2021-03-26 15:24:06,532 INFO L132 encePairwiseOnDemand]: 41/65 looper letters, 18 selfloop transitions, 131 changer transitions 0/158 dead transitions. [2021-03-26 15:24:06,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 158 transitions, 1994 flow [2021-03-26 15:24:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 15:24:06,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 15:24:06,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 241 transitions. [2021-03-26 15:24:06,533 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5296703296703297 [2021-03-26 15:24:06,533 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 241 transitions. [2021-03-26 15:24:06,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 241 transitions. [2021-03-26 15:24:06,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:06,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 241 transitions. [2021-03-26 15:24:06,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.42857142857143) internal successors, (241), 7 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) [2021-03-26 15:24:06,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 65.0) internal successors, (520), 8 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:06,535 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 65.0) internal successors, (520), 8 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:06,535 INFO L185 Difference]: Start difference. First operand has 49 places, 104 transitions, 1184 flow. Second operand 7 states and 241 transitions. [2021-03-26 15:24:06,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 158 transitions, 1994 flow [2021-03-26 15:24:06,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 158 transitions, 1934 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 15:24:06,544 INFO L241 Difference]: Finished difference. Result has 56 places, 155 transitions, 2096 flow [2021-03-26 15:24:06,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2096, PETRI_PLACES=56, PETRI_TRANSITIONS=155} [2021-03-26 15:24:06,545 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 23 predicate places. [2021-03-26 15:24:06,545 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:06,545 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 155 transitions, 2096 flow [2021-03-26 15:24:06,545 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 155 transitions, 2096 flow [2021-03-26 15:24:06,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 155 transitions, 2096 flow [2021-03-26 15:24:06,617 INFO L129 PetriNetUnfolder]: 315/663 cut-off events. [2021-03-26 15:24:06,617 INFO L130 PetriNetUnfolder]: For 3136/3222 co-relation queries the response was YES. [2021-03-26 15:24:06,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3593 conditions, 663 events. 315/663 cut-off events. For 3136/3222 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3947 event pairs, 40 based on Foata normal form. 41/703 useless extension candidates. Maximal degree in co-relation 3520. Up to 363 conditions per place. [2021-03-26 15:24:06,623 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-26 15:24:06,669 INFO L154 LiptonReduction]: Checked pairs total: 23 [2021-03-26 15:24:06,669 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:24:06,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-03-26 15:24:06,670 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 155 transitions, 2100 flow [2021-03-26 15:24:06,670 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) [2021-03-26 15:24:06,670 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:06,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:06,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 15:24:06,671 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:06,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:06,671 INFO L82 PathProgramCache]: Analyzing trace with hash 22654671, now seen corresponding path program 1 times [2021-03-26 15:24:06,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:06,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203066645] [2021-03-26 15:24:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:06,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:06,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:06,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:06,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203066645] [2021-03-26 15:24:06,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:06,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:24:06,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510386073] [2021-03-26 15:24:06,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:24:06,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:06,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:24:06,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:24:06,703 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 66 [2021-03-26 15:24:06,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 155 transitions, 2100 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) [2021-03-26 15:24:06,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:06,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 66 [2021-03-26 15:24:06,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:06,875 INFO L129 PetriNetUnfolder]: 259/554 cut-off events. [2021-03-26 15:24:06,875 INFO L130 PetriNetUnfolder]: For 2335/2477 co-relation queries the response was YES. [2021-03-26 15:24:06,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3504 conditions, 554 events. 259/554 cut-off events. For 2335/2477 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3044 event pairs, 56 based on Foata normal form. 79/632 useless extension candidates. Maximal degree in co-relation 3448. Up to 265 conditions per place. [2021-03-26 15:24:06,881 INFO L132 encePairwiseOnDemand]: 46/66 looper letters, 47 selfloop transitions, 99 changer transitions 0/155 dead transitions. [2021-03-26 15:24:06,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 155 transitions, 2324 flow [2021-03-26 15:24:06,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 15:24:06,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 15:24:06,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2021-03-26 15:24:06,882 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5075757575757576 [2021-03-26 15:24:06,882 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 201 transitions. [2021-03-26 15:24:06,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 201 transitions. [2021-03-26 15:24:06,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:06,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 201 transitions. [2021-03-26 15:24:06,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:06,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:06,884 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:06,884 INFO L185 Difference]: Start difference. First operand has 56 places, 155 transitions, 2100 flow. Second operand 6 states and 201 transitions. [2021-03-26 15:24:06,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 155 transitions, 2324 flow [2021-03-26 15:24:06,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 155 transitions, 2180 flow, removed 70 selfloop flow, removed 1 redundant places. [2021-03-26 15:24:06,896 INFO L241 Difference]: Finished difference. Result has 61 places, 147 transitions, 2051 flow [2021-03-26 15:24:06,896 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=1571, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2051, PETRI_PLACES=61, PETRI_TRANSITIONS=147} [2021-03-26 15:24:06,897 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 28 predicate places. [2021-03-26 15:24:06,897 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:06,897 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 147 transitions, 2051 flow [2021-03-26 15:24:06,897 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 147 transitions, 2051 flow [2021-03-26 15:24:06,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 147 transitions, 2051 flow [2021-03-26 15:24:06,942 INFO L129 PetriNetUnfolder]: 219/485 cut-off events. [2021-03-26 15:24:06,943 INFO L130 PetriNetUnfolder]: For 2058/2149 co-relation queries the response was YES. [2021-03-26 15:24:06,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2857 conditions, 485 events. 219/485 cut-off events. For 2058/2149 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2740 event pairs, 32 based on Foata normal form. 27/510 useless extension candidates. Maximal degree in co-relation 2804. Up to 222 conditions per place. [2021-03-26 15:24:06,948 INFO L142 LiptonReduction]: Number of co-enabled transitions 186 [2021-03-26 15:24:06,956 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:06,956 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:06,956 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-26 15:24:06,957 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 147 transitions, 2051 flow [2021-03-26 15:24:06,957 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) [2021-03-26 15:24:06,957 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:06,957 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:06,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 15:24:06,957 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:06,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:06,958 INFO L82 PathProgramCache]: Analyzing trace with hash -568369905, now seen corresponding path program 1 times [2021-03-26 15:24:06,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:06,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348425525] [2021-03-26 15:24:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:06,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:06,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:06,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:06,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:06,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:06,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348425525] [2021-03-26 15:24:06,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:06,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 15:24:06,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243093451] [2021-03-26 15:24:06,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:24:06,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:06,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:24:06,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:24:06,995 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 66 [2021-03-26 15:24:06,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 147 transitions, 2051 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) [2021-03-26 15:24:06,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:06,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 66 [2021-03-26 15:24:06,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:07,213 INFO L129 PetriNetUnfolder]: 268/620 cut-off events. [2021-03-26 15:24:07,213 INFO L130 PetriNetUnfolder]: For 2747/2779 co-relation queries the response was YES. [2021-03-26 15:24:07,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4035 conditions, 620 events. 268/620 cut-off events. For 2747/2779 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3705 event pairs, 5 based on Foata normal form. 18/637 useless extension candidates. Maximal degree in co-relation 3960. Up to 250 conditions per place. [2021-03-26 15:24:07,220 INFO L132 encePairwiseOnDemand]: 46/66 looper letters, 25 selfloop transitions, 159 changer transitions 2/195 dead transitions. [2021-03-26 15:24:07,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 195 transitions, 2917 flow [2021-03-26 15:24:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 15:24:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 15:24:07,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2021-03-26 15:24:07,222 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5194805194805194 [2021-03-26 15:24:07,222 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 240 transitions. [2021-03-26 15:24:07,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 240 transitions. [2021-03-26 15:24:07,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:07,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 240 transitions. [2021-03-26 15:24:07,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.285714285714285) internal successors, (240), 7 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:07,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:07,224 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:07,224 INFO L185 Difference]: Start difference. First operand has 61 places, 147 transitions, 2051 flow. Second operand 7 states and 240 transitions. [2021-03-26 15:24:07,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 195 transitions, 2917 flow [2021-03-26 15:24:07,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 195 transitions, 2746 flow, removed 19 selfloop flow, removed 4 redundant places. [2021-03-26 15:24:07,241 INFO L241 Difference]: Finished difference. Result has 65 places, 185 transitions, 2818 flow [2021-03-26 15:24:07,241 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=1905, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2818, PETRI_PLACES=65, PETRI_TRANSITIONS=185} [2021-03-26 15:24:07,242 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 32 predicate places. [2021-03-26 15:24:07,242 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:07,242 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 185 transitions, 2818 flow [2021-03-26 15:24:07,242 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 185 transitions, 2818 flow [2021-03-26 15:24:07,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 185 transitions, 2818 flow [2021-03-26 15:24:07,297 INFO L129 PetriNetUnfolder]: 228/550 cut-off events. [2021-03-26 15:24:07,297 INFO L130 PetriNetUnfolder]: For 3066/3125 co-relation queries the response was YES. [2021-03-26 15:24:07,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3503 conditions, 550 events. 228/550 cut-off events. For 3066/3125 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3353 event pairs, 2 based on Foata normal form. 30/580 useless extension candidates. Maximal degree in co-relation 3431. Up to 229 conditions per place. [2021-03-26 15:24:07,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 228 [2021-03-26 15:24:07,316 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:07,317 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:07,317 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-26 15:24:07,317 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 185 transitions, 2818 flow [2021-03-26 15:24:07,317 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) [2021-03-26 15:24:07,318 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:07,318 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:07,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 15:24:07,318 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:07,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:07,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1981704833, now seen corresponding path program 2 times [2021-03-26 15:24:07,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:07,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597324021] [2021-03-26 15:24:07,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:07,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:07,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:07,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:07,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:07,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:07,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:07,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:07,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:07,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597324021] [2021-03-26 15:24:07,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:07,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:24:07,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767511136] [2021-03-26 15:24:07,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:24:07,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:07,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:24:07,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:24:07,352 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 66 [2021-03-26 15:24:07,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 185 transitions, 2818 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) [2021-03-26 15:24:07,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:07,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 66 [2021-03-26 15:24:07,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:07,582 INFO L129 PetriNetUnfolder]: 292/696 cut-off events. [2021-03-26 15:24:07,582 INFO L130 PetriNetUnfolder]: For 3680/3702 co-relation queries the response was YES. [2021-03-26 15:24:07,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4934 conditions, 696 events. 292/696 cut-off events. For 3680/3702 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 4436 event pairs, 21 based on Foata normal form. 18/713 useless extension candidates. Maximal degree in co-relation 4856. Up to 262 conditions per place. [2021-03-26 15:24:07,589 INFO L132 encePairwiseOnDemand]: 45/66 looper letters, 71 selfloop transitions, 143 changer transitions 3/226 dead transitions. [2021-03-26 15:24:07,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 226 transitions, 3725 flow [2021-03-26 15:24:07,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 15:24:07,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 15:24:07,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 205 transitions. [2021-03-26 15:24:07,590 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5176767676767676 [2021-03-26 15:24:07,590 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 205 transitions. [2021-03-26 15:24:07,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 205 transitions. [2021-03-26 15:24:07,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:07,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 205 transitions. [2021-03-26 15:24:07,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.166666666666664) internal successors, (205), 6 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:07,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:07,592 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:07,592 INFO L185 Difference]: Start difference. First operand has 65 places, 185 transitions, 2818 flow. Second operand 6 states and 205 transitions. [2021-03-26 15:24:07,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 226 transitions, 3725 flow [2021-03-26 15:24:07,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 226 transitions, 3613 flow, removed 54 selfloop flow, removed 1 redundant places. [2021-03-26 15:24:07,614 INFO L241 Difference]: Finished difference. Result has 72 places, 210 transitions, 3590 flow [2021-03-26 15:24:07,615 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=2744, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3590, PETRI_PLACES=72, PETRI_TRANSITIONS=210} [2021-03-26 15:24:07,615 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 39 predicate places. [2021-03-26 15:24:07,615 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:07,615 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 210 transitions, 3590 flow [2021-03-26 15:24:07,615 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 210 transitions, 3590 flow [2021-03-26 15:24:07,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 210 transitions, 3590 flow [2021-03-26 15:24:07,684 INFO L129 PetriNetUnfolder]: 244/620 cut-off events. [2021-03-26 15:24:07,685 INFO L130 PetriNetUnfolder]: For 5242/5340 co-relation queries the response was YES. [2021-03-26 15:24:07,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4516 conditions, 620 events. 244/620 cut-off events. For 5242/5340 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4032 event pairs, 3 based on Foata normal form. 41/660 useless extension candidates. Maximal degree in co-relation 4431. Up to 259 conditions per place. [2021-03-26 15:24:07,692 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-26 15:24:07,776 INFO L154 LiptonReduction]: Checked pairs total: 46 [2021-03-26 15:24:07,777 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 15:24:07,777 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 162 [2021-03-26 15:24:07,777 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 210 transitions, 3602 flow [2021-03-26 15:24:07,777 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) [2021-03-26 15:24:07,777 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:07,778 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:07,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 15:24:07,778 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:07,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:07,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1187538000, now seen corresponding path program 1 times [2021-03-26 15:24:07,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:07,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973170643] [2021-03-26 15:24:07,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:07,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:07,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:07,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:07,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:07,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:07,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:07,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:07,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:07,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973170643] [2021-03-26 15:24:07,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:07,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 15:24:07,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110266935] [2021-03-26 15:24:07,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:24:07,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:07,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:24:07,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:24:07,837 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 15:24:07,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 210 transitions, 3602 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) [2021-03-26 15:24:07,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:07,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 15:24:07,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:08,108 INFO L129 PetriNetUnfolder]: 291/703 cut-off events. [2021-03-26 15:24:08,108 INFO L130 PetriNetUnfolder]: For 5585/5597 co-relation queries the response was YES. [2021-03-26 15:24:08,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5716 conditions, 703 events. 291/703 cut-off events. For 5585/5597 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4519 event pairs, 13 based on Foata normal form. 6/708 useless extension candidates. Maximal degree in co-relation 5630. Up to 295 conditions per place. [2021-03-26 15:24:08,116 INFO L132 encePairwiseOnDemand]: 48/68 looper letters, 74 selfloop transitions, 138 changer transitions 0/221 dead transitions. [2021-03-26 15:24:08,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 221 transitions, 4180 flow [2021-03-26 15:24:08,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 15:24:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 15:24:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 243 transitions. [2021-03-26 15:24:08,118 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5105042016806722 [2021-03-26 15:24:08,118 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 243 transitions. [2021-03-26 15:24:08,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 243 transitions. [2021-03-26 15:24:08,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:08,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 243 transitions. [2021-03-26 15:24:08,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.714285714285715) internal successors, (243), 7 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:08,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:08,120 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:08,120 INFO L185 Difference]: Start difference. First operand has 72 places, 210 transitions, 3602 flow. Second operand 7 states and 243 transitions. [2021-03-26 15:24:08,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 221 transitions, 4180 flow [2021-03-26 15:24:08,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 221 transitions, 4134 flow, removed 21 selfloop flow, removed 1 redundant places. [2021-03-26 15:24:08,147 INFO L241 Difference]: Finished difference. Result has 77 places, 214 transitions, 3916 flow [2021-03-26 15:24:08,147 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=3556, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3916, PETRI_PLACES=77, PETRI_TRANSITIONS=214} [2021-03-26 15:24:08,148 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 44 predicate places. [2021-03-26 15:24:08,148 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:08,148 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 214 transitions, 3916 flow [2021-03-26 15:24:08,148 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 214 transitions, 3916 flow [2021-03-26 15:24:08,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 214 transitions, 3916 flow [2021-03-26 15:24:08,216 INFO L129 PetriNetUnfolder]: 246/626 cut-off events. [2021-03-26 15:24:08,216 INFO L130 PetriNetUnfolder]: For 5328/5403 co-relation queries the response was YES. [2021-03-26 15:24:08,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4813 conditions, 626 events. 246/626 cut-off events. For 5328/5403 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4151 event pairs, 2 based on Foata normal form. 37/663 useless extension candidates. Maximal degree in co-relation 4728. Up to 252 conditions per place. [2021-03-26 15:24:08,224 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-26 15:24:08,290 INFO L154 LiptonReduction]: Checked pairs total: 23 [2021-03-26 15:24:08,290 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:24:08,290 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 142 [2021-03-26 15:24:08,293 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 214 transitions, 3922 flow [2021-03-26 15:24:08,293 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) [2021-03-26 15:24:08,293 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:08,293 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:08,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 15:24:08,293 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:08,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:08,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1662912816, now seen corresponding path program 1 times [2021-03-26 15:24:08,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:08,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677222727] [2021-03-26 15:24:08,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:08,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:08,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:08,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:08,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:08,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:08,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:08,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:08,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677222727] [2021-03-26 15:24:08,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:08,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:24:08,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305001964] [2021-03-26 15:24:08,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:24:08,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:08,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:24:08,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:24:08,344 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 69 [2021-03-26 15:24:08,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 214 transitions, 3922 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:08,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:08,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 69 [2021-03-26 15:24:08,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:08,566 INFO L129 PetriNetUnfolder]: 282/687 cut-off events. [2021-03-26 15:24:08,566 INFO L130 PetriNetUnfolder]: For 5620/5634 co-relation queries the response was YES. [2021-03-26 15:24:08,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5849 conditions, 687 events. 282/687 cut-off events. For 5620/5634 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 4418 event pairs, 2 based on Foata normal form. 8/694 useless extension candidates. Maximal degree in co-relation 5762. Up to 264 conditions per place. [2021-03-26 15:24:08,576 INFO L132 encePairwiseOnDemand]: 46/69 looper letters, 25 selfloop transitions, 182 changer transitions 1/217 dead transitions. [2021-03-26 15:24:08,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 217 transitions, 4360 flow [2021-03-26 15:24:08,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 15:24:08,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 15:24:08,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 205 transitions. [2021-03-26 15:24:08,578 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49516908212560384 [2021-03-26 15:24:08,578 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 205 transitions. [2021-03-26 15:24:08,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 205 transitions. [2021-03-26 15:24:08,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:08,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 205 transitions. [2021-03-26 15:24:08,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.166666666666664) internal successors, (205), 6 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:08,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 69.0) internal successors, (483), 7 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:08,580 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 69.0) internal successors, (483), 7 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:08,580 INFO L185 Difference]: Start difference. First operand has 77 places, 214 transitions, 3922 flow. Second operand 6 states and 205 transitions. [2021-03-26 15:24:08,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 217 transitions, 4360 flow [2021-03-26 15:24:08,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 217 transitions, 4156 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 15:24:08,639 INFO L241 Difference]: Finished difference. Result has 78 places, 212 transitions, 4054 flow [2021-03-26 15:24:08,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=3690, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4054, PETRI_PLACES=78, PETRI_TRANSITIONS=212} [2021-03-26 15:24:08,640 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 45 predicate places. [2021-03-26 15:24:08,640 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:08,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 212 transitions, 4054 flow [2021-03-26 15:24:08,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 212 transitions, 4054 flow [2021-03-26 15:24:08,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 212 transitions, 4054 flow [2021-03-26 15:24:08,706 INFO L129 PetriNetUnfolder]: 240/605 cut-off events. [2021-03-26 15:24:08,706 INFO L130 PetriNetUnfolder]: For 6147/6247 co-relation queries the response was YES. [2021-03-26 15:24:08,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4885 conditions, 605 events. 240/605 cut-off events. For 6147/6247 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 3945 event pairs, 2 based on Foata normal form. 40/644 useless extension candidates. Maximal degree in co-relation 4805. Up to 246 conditions per place. [2021-03-26 15:24:08,715 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-26 15:24:08,730 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:08,730 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:08,730 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-26 15:24:08,731 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 212 transitions, 4054 flow [2021-03-26 15:24:08,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:08,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:08,733 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:08,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 15:24:08,733 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:08,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1064724711, now seen corresponding path program 1 times [2021-03-26 15:24:08,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:08,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801496861] [2021-03-26 15:24:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:08,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:08,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:08,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:08,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:08,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:08,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:08,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:08,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:08,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:08,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801496861] [2021-03-26 15:24:08,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:08,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 15:24:08,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822897373] [2021-03-26 15:24:08,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:24:08,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:08,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:24:08,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:24:08,789 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 69 [2021-03-26 15:24:08,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 212 transitions, 4054 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:08,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:08,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 69 [2021-03-26 15:24:08,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:09,037 INFO L129 PetriNetUnfolder]: 263/676 cut-off events. [2021-03-26 15:24:09,037 INFO L130 PetriNetUnfolder]: For 6545/6559 co-relation queries the response was YES. [2021-03-26 15:24:09,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5907 conditions, 676 events. 263/676 cut-off events. For 6545/6559 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4463 event pairs, 1 based on Foata normal form. 33/708 useless extension candidates. Maximal degree in co-relation 5820. Up to 249 conditions per place. [2021-03-26 15:24:09,051 INFO L132 encePairwiseOnDemand]: 48/69 looper letters, 31 selfloop transitions, 187 changer transitions 7/234 dead transitions. [2021-03-26 15:24:09,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 234 transitions, 4780 flow [2021-03-26 15:24:09,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 15:24:09,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 15:24:09,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 239 transitions. [2021-03-26 15:24:09,053 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.494824016563147 [2021-03-26 15:24:09,053 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 239 transitions. [2021-03-26 15:24:09,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 239 transitions. [2021-03-26 15:24:09,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:09,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 239 transitions. [2021-03-26 15:24:09,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,055 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,055 INFO L185 Difference]: Start difference. First operand has 78 places, 212 transitions, 4054 flow. Second operand 7 states and 239 transitions. [2021-03-26 15:24:09,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 234 transitions, 4780 flow [2021-03-26 15:24:09,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 234 transitions, 4406 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-26 15:24:09,087 INFO L241 Difference]: Finished difference. Result has 79 places, 213 transitions, 4045 flow [2021-03-26 15:24:09,087 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=3545, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4045, PETRI_PLACES=79, PETRI_TRANSITIONS=213} [2021-03-26 15:24:09,087 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 46 predicate places. [2021-03-26 15:24:09,087 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:09,087 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 213 transitions, 4045 flow [2021-03-26 15:24:09,088 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 213 transitions, 4045 flow [2021-03-26 15:24:09,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 213 transitions, 4045 flow [2021-03-26 15:24:09,153 INFO L129 PetriNetUnfolder]: 215/594 cut-off events. [2021-03-26 15:24:09,153 INFO L130 PetriNetUnfolder]: For 5943/6025 co-relation queries the response was YES. [2021-03-26 15:24:09,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4731 conditions, 594 events. 215/594 cut-off events. For 5943/6025 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4095 event pairs, 2 based on Foata normal form. 31/625 useless extension candidates. Maximal degree in co-relation 4645. Up to 221 conditions per place. [2021-03-26 15:24:09,161 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-26 15:24:09,177 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:09,177 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:09,177 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-26 15:24:09,177 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 213 transitions, 4045 flow [2021-03-26 15:24:09,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,178 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:09,178 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:09,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 15:24:09,178 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:09,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:09,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1626909598, now seen corresponding path program 1 times [2021-03-26 15:24:09,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:09,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740757606] [2021-03-26 15:24:09,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:09,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:09,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:09,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:09,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740757606] [2021-03-26 15:24:09,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:09,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 15:24:09,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504463030] [2021-03-26 15:24:09,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:24:09,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:09,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:24:09,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:24:09,235 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 69 [2021-03-26 15:24:09,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 213 transitions, 4045 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:09,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 69 [2021-03-26 15:24:09,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:09,479 INFO L129 PetriNetUnfolder]: 224/628 cut-off events. [2021-03-26 15:24:09,479 INFO L130 PetriNetUnfolder]: For 6051/6065 co-relation queries the response was YES. [2021-03-26 15:24:09,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5478 conditions, 628 events. 224/628 cut-off events. For 6051/6065 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4326 event pairs, 2 based on Foata normal form. 39/666 useless extension candidates. Maximal degree in co-relation 5396. Up to 219 conditions per place. [2021-03-26 15:24:09,485 INFO L132 encePairwiseOnDemand]: 48/69 looper letters, 30 selfloop transitions, 174 changer transitions 17/230 dead transitions. [2021-03-26 15:24:09,485 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 230 transitions, 4717 flow [2021-03-26 15:24:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 15:24:09,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 15:24:09,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 241 transitions. [2021-03-26 15:24:09,487 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4989648033126294 [2021-03-26 15:24:09,487 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 241 transitions. [2021-03-26 15:24:09,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 241 transitions. [2021-03-26 15:24:09,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:09,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 241 transitions. [2021-03-26 15:24:09,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.42857142857143) internal successors, (241), 7 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) [2021-03-26 15:24:09,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,489 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,489 INFO L185 Difference]: Start difference. First operand has 79 places, 213 transitions, 4045 flow. Second operand 7 states and 241 transitions. [2021-03-26 15:24:09,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 230 transitions, 4717 flow [2021-03-26 15:24:09,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 230 transitions, 4434 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-26 15:24:09,514 INFO L241 Difference]: Finished difference. Result has 81 places, 201 transitions, 3988 flow [2021-03-26 15:24:09,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=3566, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3988, PETRI_PLACES=81, PETRI_TRANSITIONS=201} [2021-03-26 15:24:09,515 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 48 predicate places. [2021-03-26 15:24:09,515 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:09,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 201 transitions, 3988 flow [2021-03-26 15:24:09,515 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 201 transitions, 3988 flow [2021-03-26 15:24:09,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 201 transitions, 3988 flow [2021-03-26 15:24:09,593 INFO L129 PetriNetUnfolder]: 157/508 cut-off events. [2021-03-26 15:24:09,593 INFO L130 PetriNetUnfolder]: For 6103/6216 co-relation queries the response was YES. [2021-03-26 15:24:09,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4131 conditions, 508 events. 157/508 cut-off events. For 6103/6216 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 3661 event pairs, 1 based on Foata normal form. 34/541 useless extension candidates. Maximal degree in co-relation 4052. Up to 172 conditions per place. [2021-03-26 15:24:09,601 INFO L142 LiptonReduction]: Number of co-enabled transitions 220 [2021-03-26 15:24:09,614 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:09,614 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:09,614 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 99 [2021-03-26 15:24:09,615 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 201 transitions, 3988 flow [2021-03-26 15:24:09,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,615 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:09,615 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:09,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 15:24:09,615 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:09,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:09,616 INFO L82 PathProgramCache]: Analyzing trace with hash 825650037, now seen corresponding path program 1 times [2021-03-26 15:24:09,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:09,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839169605] [2021-03-26 15:24:09,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:09,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:09,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:09,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:09,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:09,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:09,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839169605] [2021-03-26 15:24:09,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:09,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 15:24:09,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167538712] [2021-03-26 15:24:09,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:24:09,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:09,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:24:09,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:24:09,665 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 69 [2021-03-26 15:24:09,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 201 transitions, 3988 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:09,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 69 [2021-03-26 15:24:09,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:09,886 INFO L129 PetriNetUnfolder]: 165/498 cut-off events. [2021-03-26 15:24:09,886 INFO L130 PetriNetUnfolder]: For 6048/6062 co-relation queries the response was YES. [2021-03-26 15:24:09,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4569 conditions, 498 events. 165/498 cut-off events. For 6048/6062 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 3514 event pairs, 1 based on Foata normal form. 27/524 useless extension candidates. Maximal degree in co-relation 4514. Up to 190 conditions per place. [2021-03-26 15:24:09,891 INFO L132 encePairwiseOnDemand]: 48/69 looper letters, 29 selfloop transitions, 129 changer transitions 29/196 dead transitions. [2021-03-26 15:24:09,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 196 transitions, 4133 flow [2021-03-26 15:24:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 15:24:09,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 15:24:09,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2021-03-26 15:24:09,893 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4886128364389234 [2021-03-26 15:24:09,893 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 236 transitions. [2021-03-26 15:24:09,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 236 transitions. [2021-03-26 15:24:09,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:09,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 236 transitions. [2021-03-26 15:24:09,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,895 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:09,895 INFO L185 Difference]: Start difference. First operand has 81 places, 201 transitions, 3988 flow. Second operand 7 states and 236 transitions. [2021-03-26 15:24:09,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 196 transitions, 4133 flow [2021-03-26 15:24:09,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 196 transitions, 3869 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-26 15:24:09,920 INFO L241 Difference]: Finished difference. Result has 83 places, 157 transitions, 3217 flow [2021-03-26 15:24:09,921 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=3255, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3217, PETRI_PLACES=83, PETRI_TRANSITIONS=157} [2021-03-26 15:24:09,921 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 50 predicate places. [2021-03-26 15:24:09,921 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:09,922 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 157 transitions, 3217 flow [2021-03-26 15:24:09,922 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 157 transitions, 3217 flow [2021-03-26 15:24:09,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 157 transitions, 3217 flow [2021-03-26 15:24:09,960 INFO L129 PetriNetUnfolder]: 110/329 cut-off events. [2021-03-26 15:24:09,960 INFO L130 PetriNetUnfolder]: For 4709/4727 co-relation queries the response was YES. [2021-03-26 15:24:09,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2828 conditions, 329 events. 110/329 cut-off events. For 4709/4727 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1981 event pairs, 0 based on Foata normal form. 4/332 useless extension candidates. Maximal degree in co-relation 2771. Up to 133 conditions per place. [2021-03-26 15:24:09,964 INFO L142 LiptonReduction]: Number of co-enabled transitions 106 [2021-03-26 15:24:10,009 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-26 15:24:10,009 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:24:10,009 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-03-26 15:24:10,012 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 157 transitions, 3223 flow [2021-03-26 15:24:10,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,012 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:10,012 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:10,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 15:24:10,013 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:10,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:10,013 INFO L82 PathProgramCache]: Analyzing trace with hash 332231346, now seen corresponding path program 2 times [2021-03-26 15:24:10,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:10,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315179154] [2021-03-26 15:24:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:10,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:10,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:10,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315179154] [2021-03-26 15:24:10,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:10,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 15:24:10,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242143448] [2021-03-26 15:24:10,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:24:10,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:10,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:24:10,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:24:10,055 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:10,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 157 transitions, 3223 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) [2021-03-26 15:24:10,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:10,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:10,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:10,269 INFO L129 PetriNetUnfolder]: 120/364 cut-off events. [2021-03-26 15:24:10,269 INFO L130 PetriNetUnfolder]: For 5386/5400 co-relation queries the response was YES. [2021-03-26 15:24:10,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 364 events. 120/364 cut-off events. For 5386/5400 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2258 event pairs, 0 based on Foata normal form. 18/381 useless extension candidates. Maximal degree in co-relation 3414. Up to 161 conditions per place. [2021-03-26 15:24:10,272 INFO L132 encePairwiseOnDemand]: 53/70 looper letters, 70 selfloop transitions, 90 changer transitions 7/176 dead transitions. [2021-03-26 15:24:10,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 176 transitions, 3845 flow [2021-03-26 15:24:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 15:24:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 15:24:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2021-03-26 15:24:10,274 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2021-03-26 15:24:10,274 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 260 transitions. [2021-03-26 15:24:10,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 260 transitions. [2021-03-26 15:24:10,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:10,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 260 transitions. [2021-03-26 15:24:10,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,276 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,276 INFO L185 Difference]: Start difference. First operand has 83 places, 157 transitions, 3223 flow. Second operand 8 states and 260 transitions. [2021-03-26 15:24:10,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 176 transitions, 3845 flow [2021-03-26 15:24:10,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 176 transitions, 3646 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-26 15:24:10,300 INFO L241 Difference]: Finished difference. Result has 85 places, 156 transitions, 3164 flow [2021-03-26 15:24:10,300 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=3038, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3164, PETRI_PLACES=85, PETRI_TRANSITIONS=156} [2021-03-26 15:24:10,300 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 52 predicate places. [2021-03-26 15:24:10,301 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:10,301 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 156 transitions, 3164 flow [2021-03-26 15:24:10,301 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 156 transitions, 3164 flow [2021-03-26 15:24:10,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 156 transitions, 3164 flow [2021-03-26 15:24:10,337 INFO L129 PetriNetUnfolder]: 108/331 cut-off events. [2021-03-26 15:24:10,337 INFO L130 PetriNetUnfolder]: For 4932/4943 co-relation queries the response was YES. [2021-03-26 15:24:10,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2775 conditions, 331 events. 108/331 cut-off events. For 4932/4943 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2038 event pairs, 0 based on Foata normal form. 3/333 useless extension candidates. Maximal degree in co-relation 2722. Up to 137 conditions per place. [2021-03-26 15:24:10,341 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 15:24:10,348 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:10,348 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:10,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-26 15:24:10,349 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 156 transitions, 3164 flow [2021-03-26 15:24:10,350 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) [2021-03-26 15:24:10,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:10,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:10,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 15:24:10,350 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:10,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:10,350 INFO L82 PathProgramCache]: Analyzing trace with hash -812130259, now seen corresponding path program 1 times [2021-03-26 15:24:10,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:10,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433667393] [2021-03-26 15:24:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:10,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:10,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:10,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433667393] [2021-03-26 15:24:10,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:10,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:24:10,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121844731] [2021-03-26 15:24:10,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:24:10,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:10,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:24:10,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:24:10,390 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:10,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 156 transitions, 3164 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:10,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:10,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:10,532 INFO L129 PetriNetUnfolder]: 114/345 cut-off events. [2021-03-26 15:24:10,533 INFO L130 PetriNetUnfolder]: For 5334/5348 co-relation queries the response was YES. [2021-03-26 15:24:10,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3205 conditions, 345 events. 114/345 cut-off events. For 5334/5348 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2079 event pairs, 0 based on Foata normal form. 5/349 useless extension candidates. Maximal degree in co-relation 3148. Up to 143 conditions per place. [2021-03-26 15:24:10,536 INFO L132 encePairwiseOnDemand]: 51/70 looper letters, 38 selfloop transitions, 105 changer transitions 6/158 dead transitions. [2021-03-26 15:24:10,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 158 transitions, 3474 flow [2021-03-26 15:24:10,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 15:24:10,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 15:24:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-26 15:24:10,537 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48095238095238096 [2021-03-26 15:24:10,537 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-26 15:24:10,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-26 15:24:10,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:10,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-26 15:24:10,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,539 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,539 INFO L185 Difference]: Start difference. First operand has 85 places, 156 transitions, 3164 flow. Second operand 6 states and 202 transitions. [2021-03-26 15:24:10,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 158 transitions, 3474 flow [2021-03-26 15:24:10,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 158 transitions, 3266 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 15:24:10,565 INFO L241 Difference]: Finished difference. Result has 84 places, 149 transitions, 2998 flow [2021-03-26 15:24:10,565 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2944, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2998, PETRI_PLACES=84, PETRI_TRANSITIONS=149} [2021-03-26 15:24:10,566 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 51 predicate places. [2021-03-26 15:24:10,566 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:10,566 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 149 transitions, 2998 flow [2021-03-26 15:24:10,566 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 149 transitions, 2998 flow [2021-03-26 15:24:10,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 149 transitions, 2998 flow [2021-03-26 15:24:10,598 INFO L129 PetriNetUnfolder]: 97/306 cut-off events. [2021-03-26 15:24:10,598 INFO L130 PetriNetUnfolder]: For 4315/4345 co-relation queries the response was YES. [2021-03-26 15:24:10,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2606 conditions, 306 events. 97/306 cut-off events. For 4315/4345 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1865 event pairs, 0 based on Foata normal form. 11/317 useless extension candidates. Maximal degree in co-relation 2556. Up to 129 conditions per place. [2021-03-26 15:24:10,602 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 15:24:10,607 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:10,608 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:10,608 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-26 15:24:10,608 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 149 transitions, 2998 flow [2021-03-26 15:24:10,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,608 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:10,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:10,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 15:24:10,610 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:10,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:10,611 INFO L82 PathProgramCache]: Analyzing trace with hash -542039641, now seen corresponding path program 3 times [2021-03-26 15:24:10,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:10,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843924828] [2021-03-26 15:24:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:10,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:10,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:10,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:10,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843924828] [2021-03-26 15:24:10,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:10,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:24:10,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021933561] [2021-03-26 15:24:10,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:24:10,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:10,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:24:10,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:24:10,658 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:10,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 149 transitions, 2998 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) [2021-03-26 15:24:10,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:10,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:10,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:10,883 INFO L129 PetriNetUnfolder]: 98/334 cut-off events. [2021-03-26 15:24:10,883 INFO L130 PetriNetUnfolder]: For 4678/4692 co-relation queries the response was YES. [2021-03-26 15:24:10,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3177 conditions, 334 events. 98/334 cut-off events. For 4678/4692 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2123 event pairs, 0 based on Foata normal form. 25/358 useless extension candidates. Maximal degree in co-relation 3122. Up to 142 conditions per place. [2021-03-26 15:24:10,886 INFO L132 encePairwiseOnDemand]: 51/70 looper letters, 27 selfloop transitions, 114 changer transitions 22/172 dead transitions. [2021-03-26 15:24:10,886 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 172 transitions, 3742 flow [2021-03-26 15:24:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:24:10,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:24:10,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 297 transitions. [2021-03-26 15:24:10,888 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2021-03-26 15:24:10,888 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 297 transitions. [2021-03-26 15:24:10,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 297 transitions. [2021-03-26 15:24:10,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:10,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 297 transitions. [2021-03-26 15:24:10,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,891 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:10,891 INFO L185 Difference]: Start difference. First operand has 84 places, 149 transitions, 2998 flow. Second operand 9 states and 297 transitions. [2021-03-26 15:24:10,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 172 transitions, 3742 flow [2021-03-26 15:24:10,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 172 transitions, 3506 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-26 15:24:10,915 INFO L241 Difference]: Finished difference. Result has 89 places, 142 transitions, 2910 flow [2021-03-26 15:24:10,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2739, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2910, PETRI_PLACES=89, PETRI_TRANSITIONS=142} [2021-03-26 15:24:10,916 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 56 predicate places. [2021-03-26 15:24:10,916 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:10,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 142 transitions, 2910 flow [2021-03-26 15:24:10,916 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 142 transitions, 2910 flow [2021-03-26 15:24:10,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 142 transitions, 2910 flow [2021-03-26 15:24:10,944 INFO L129 PetriNetUnfolder]: 82/279 cut-off events. [2021-03-26 15:24:10,945 INFO L130 PetriNetUnfolder]: For 4698/4740 co-relation queries the response was YES. [2021-03-26 15:24:10,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2441 conditions, 279 events. 82/279 cut-off events. For 4698/4740 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1617 event pairs, 0 based on Foata normal form. 11/289 useless extension candidates. Maximal degree in co-relation 2384. Up to 111 conditions per place. [2021-03-26 15:24:10,948 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 15:24:10,954 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:10,954 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:10,954 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-26 15:24:10,955 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 142 transitions, 2910 flow [2021-03-26 15:24:10,955 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) [2021-03-26 15:24:10,955 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:10,955 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:10,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 15:24:10,956 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:10,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:10,956 INFO L82 PathProgramCache]: Analyzing trace with hash -673752950, now seen corresponding path program 1 times [2021-03-26 15:24:10,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:10,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637632712] [2021-03-26 15:24:10,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:10,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:10,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:10,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:10,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:10,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:10,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637632712] [2021-03-26 15:24:10,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:10,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 15:24:10,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555196810] [2021-03-26 15:24:10,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:24:10,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:10,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:24:10,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:24:10,992 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:10,993 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 142 transitions, 2910 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) [2021-03-26 15:24:10,993 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:10,993 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:10,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:11,175 INFO L129 PetriNetUnfolder]: 71/268 cut-off events. [2021-03-26 15:24:11,175 INFO L130 PetriNetUnfolder]: For 4580/4594 co-relation queries the response was YES. [2021-03-26 15:24:11,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2614 conditions, 268 events. 71/268 cut-off events. For 4580/4594 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1597 event pairs, 3 based on Foata normal form. 18/285 useless extension candidates. Maximal degree in co-relation 2558. Up to 116 conditions per place. [2021-03-26 15:24:11,178 INFO L132 encePairwiseOnDemand]: 54/70 looper letters, 57 selfloop transitions, 73 changer transitions 13/152 dead transitions. [2021-03-26 15:24:11,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 152 transitions, 3312 flow [2021-03-26 15:24:11,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 15:24:11,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 15:24:11,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2021-03-26 15:24:11,181 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4625 [2021-03-26 15:24:11,181 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 259 transitions. [2021-03-26 15:24:11,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 259 transitions. [2021-03-26 15:24:11,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:11,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 259 transitions. [2021-03-26 15:24:11,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:11,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:11,183 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:11,183 INFO L185 Difference]: Start difference. First operand has 89 places, 142 transitions, 2910 flow. Second operand 8 states and 259 transitions. [2021-03-26 15:24:11,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 152 transitions, 3312 flow [2021-03-26 15:24:11,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 152 transitions, 2927 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-03-26 15:24:11,202 INFO L241 Difference]: Finished difference. Result has 88 places, 127 transitions, 2345 flow [2021-03-26 15:24:11,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2382, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2345, PETRI_PLACES=88, PETRI_TRANSITIONS=127} [2021-03-26 15:24:11,203 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 55 predicate places. [2021-03-26 15:24:11,203 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:11,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 127 transitions, 2345 flow [2021-03-26 15:24:11,205 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 127 transitions, 2345 flow [2021-03-26 15:24:11,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 127 transitions, 2345 flow [2021-03-26 15:24:11,227 INFO L129 PetriNetUnfolder]: 61/233 cut-off events. [2021-03-26 15:24:11,227 INFO L130 PetriNetUnfolder]: For 3593/3629 co-relation queries the response was YES. [2021-03-26 15:24:11,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1863 conditions, 233 events. 61/233 cut-off events. For 3593/3629 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1329 event pairs, 0 based on Foata normal form. 8/240 useless extension candidates. Maximal degree in co-relation 1813. Up to 95 conditions per place. [2021-03-26 15:24:11,230 INFO L142 LiptonReduction]: Number of co-enabled transitions 90 [2021-03-26 15:24:11,235 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:11,235 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:11,235 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-26 15:24:11,236 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 127 transitions, 2345 flow [2021-03-26 15:24:11,236 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) [2021-03-26 15:24:11,236 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:11,236 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:11,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 15:24:11,237 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:11,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:11,237 INFO L82 PathProgramCache]: Analyzing trace with hash 314984631, now seen corresponding path program 4 times [2021-03-26 15:24:11,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:11,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673399518] [2021-03-26 15:24:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:11,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:11,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:11,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:11,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673399518] [2021-03-26 15:24:11,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:11,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:24:11,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487858288] [2021-03-26 15:24:11,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:24:11,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:11,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:24:11,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:24:11,296 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:11,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 127 transitions, 2345 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) [2021-03-26 15:24:11,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:11,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:11,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:11,478 INFO L129 PetriNetUnfolder]: 65/244 cut-off events. [2021-03-26 15:24:11,478 INFO L130 PetriNetUnfolder]: For 3641/3655 co-relation queries the response was YES. [2021-03-26 15:24:11,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2156 conditions, 244 events. 65/244 cut-off events. For 3641/3655 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1400 event pairs, 0 based on Foata normal form. 3/246 useless extension candidates. Maximal degree in co-relation 2102. Up to 97 conditions per place. [2021-03-26 15:24:11,480 INFO L132 encePairwiseOnDemand]: 52/70 looper letters, 27 selfloop transitions, 99 changer transitions 5/140 dead transitions. [2021-03-26 15:24:11,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 140 transitions, 2785 flow [2021-03-26 15:24:11,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:24:11,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:24:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 286 transitions. [2021-03-26 15:24:11,482 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45396825396825397 [2021-03-26 15:24:11,482 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 286 transitions. [2021-03-26 15:24:11,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 286 transitions. [2021-03-26 15:24:11,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:11,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 286 transitions. [2021-03-26 15:24:11,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.77777777777778) internal successors, (286), 9 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:11,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:11,486 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:11,486 INFO L185 Difference]: Start difference. First operand has 88 places, 127 transitions, 2345 flow. Second operand 9 states and 286 transitions. [2021-03-26 15:24:11,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 140 transitions, 2785 flow [2021-03-26 15:24:11,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 140 transitions, 2710 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 15:24:11,502 INFO L241 Difference]: Finished difference. Result has 93 places, 123 transitions, 2412 flow [2021-03-26 15:24:11,503 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2257, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2412, PETRI_PLACES=93, PETRI_TRANSITIONS=123} [2021-03-26 15:24:11,503 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 60 predicate places. [2021-03-26 15:24:11,503 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:11,503 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 123 transitions, 2412 flow [2021-03-26 15:24:11,503 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 123 transitions, 2412 flow [2021-03-26 15:24:11,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 123 transitions, 2412 flow [2021-03-26 15:24:11,524 INFO L129 PetriNetUnfolder]: 59/227 cut-off events. [2021-03-26 15:24:11,525 INFO L130 PetriNetUnfolder]: For 3709/3743 co-relation queries the response was YES. [2021-03-26 15:24:11,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1914 conditions, 227 events. 59/227 cut-off events. For 3709/3743 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1292 event pairs, 0 based on Foata normal form. 7/233 useless extension candidates. Maximal degree in co-relation 1864. Up to 93 conditions per place. [2021-03-26 15:24:11,527 INFO L142 LiptonReduction]: Number of co-enabled transitions 90 [2021-03-26 15:24:11,532 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:11,532 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:11,532 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 15:24:11,532 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 123 transitions, 2412 flow [2021-03-26 15:24:11,536 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) [2021-03-26 15:24:11,536 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:11,536 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:11,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 15:24:11,536 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:11,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:11,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1325805377, now seen corresponding path program 5 times [2021-03-26 15:24:11,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:11,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68733641] [2021-03-26 15:24:11,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:11,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:11,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:11,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:11,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68733641] [2021-03-26 15:24:11,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:11,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:24:11,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410931439] [2021-03-26 15:24:11,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:24:11,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:11,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:24:11,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:24:11,592 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:11,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 123 transitions, 2412 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) [2021-03-26 15:24:11,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:11,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:11,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:11,797 INFO L129 PetriNetUnfolder]: 63/238 cut-off events. [2021-03-26 15:24:11,797 INFO L130 PetriNetUnfolder]: For 3761/3777 co-relation queries the response was YES. [2021-03-26 15:24:11,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2203 conditions, 238 events. 63/238 cut-off events. For 3761/3777 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1343 event pairs, 0 based on Foata normal form. 3/240 useless extension candidates. Maximal degree in co-relation 2149. Up to 95 conditions per place. [2021-03-26 15:24:11,800 INFO L132 encePairwiseOnDemand]: 52/70 looper letters, 26 selfloop transitions, 94 changer transitions 7/136 dead transitions. [2021-03-26 15:24:11,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 136 transitions, 2849 flow [2021-03-26 15:24:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:24:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:24:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 285 transitions. [2021-03-26 15:24:11,801 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2021-03-26 15:24:11,801 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 285 transitions. [2021-03-26 15:24:11,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 285 transitions. [2021-03-26 15:24:11,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:11,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 285 transitions. [2021-03-26 15:24:11,802 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) [2021-03-26 15:24:11,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:11,803 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:11,803 INFO L185 Difference]: Start difference. First operand has 93 places, 123 transitions, 2412 flow. Second operand 9 states and 285 transitions. [2021-03-26 15:24:11,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 136 transitions, 2849 flow [2021-03-26 15:24:11,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 136 transitions, 2716 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-26 15:24:11,821 INFO L241 Difference]: Finished difference. Result has 93 places, 117 transitions, 2379 flow [2021-03-26 15:24:11,821 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2273, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2379, PETRI_PLACES=93, PETRI_TRANSITIONS=117} [2021-03-26 15:24:11,821 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 60 predicate places. [2021-03-26 15:24:11,821 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:11,822 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 117 transitions, 2379 flow [2021-03-26 15:24:11,822 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 117 transitions, 2379 flow [2021-03-26 15:24:11,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 117 transitions, 2379 flow [2021-03-26 15:24:11,843 INFO L129 PetriNetUnfolder]: 57/212 cut-off events. [2021-03-26 15:24:11,843 INFO L130 PetriNetUnfolder]: For 3518/3523 co-relation queries the response was YES. [2021-03-26 15:24:11,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1828 conditions, 212 events. 57/212 cut-off events. For 3518/3523 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1156 event pairs, 0 based on Foata normal form. 5/217 useless extension candidates. Maximal degree in co-relation 1778. Up to 86 conditions per place. [2021-03-26 15:24:11,847 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-26 15:24:11,852 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:11,852 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:11,852 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 15:24:11,852 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 117 transitions, 2379 flow [2021-03-26 15:24:11,852 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) [2021-03-26 15:24:11,852 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:11,852 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:11,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 15:24:11,853 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:11,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:11,853 INFO L82 PathProgramCache]: Analyzing trace with hash -905470862, now seen corresponding path program 2 times [2021-03-26 15:24:11,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:11,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686699869] [2021-03-26 15:24:11,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:11,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:11,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:11,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:11,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:11,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:11,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686699869] [2021-03-26 15:24:11,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:11,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 15:24:11,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993746095] [2021-03-26 15:24:11,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 15:24:11,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:11,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 15:24:11,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 15:24:11,923 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:11,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 117 transitions, 2379 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) [2021-03-26 15:24:11,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:11,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:11,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:12,183 INFO L129 PetriNetUnfolder]: 55/226 cut-off events. [2021-03-26 15:24:12,183 INFO L130 PetriNetUnfolder]: For 3798/3816 co-relation queries the response was YES. [2021-03-26 15:24:12,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2129 conditions, 226 events. 55/226 cut-off events. For 3798/3816 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1291 event pairs, 0 based on Foata normal form. 11/236 useless extension candidates. Maximal degree in co-relation 2075. Up to 89 conditions per place. [2021-03-26 15:24:12,186 INFO L132 encePairwiseOnDemand]: 54/70 looper letters, 28 selfloop transitions, 87 changer transitions 13/137 dead transitions. [2021-03-26 15:24:12,186 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 137 transitions, 2933 flow [2021-03-26 15:24:12,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 15:24:12,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 15:24:12,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 375 transitions. [2021-03-26 15:24:12,187 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2021-03-26 15:24:12,187 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 375 transitions. [2021-03-26 15:24:12,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 375 transitions. [2021-03-26 15:24:12,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:12,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 375 transitions. [2021-03-26 15:24:12,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.25) internal successors, (375), 12 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:12,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 70.0) internal successors, (910), 13 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:12,189 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 70.0) internal successors, (910), 13 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:12,190 INFO L185 Difference]: Start difference. First operand has 93 places, 117 transitions, 2379 flow. Second operand 12 states and 375 transitions. [2021-03-26 15:24:12,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 137 transitions, 2933 flow [2021-03-26 15:24:12,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 137 transitions, 2779 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-03-26 15:24:12,208 INFO L241 Difference]: Finished difference. Result has 96 places, 113 transitions, 2251 flow [2021-03-26 15:24:12,208 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2169, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2251, PETRI_PLACES=96, PETRI_TRANSITIONS=113} [2021-03-26 15:24:12,208 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 63 predicate places. [2021-03-26 15:24:12,208 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:12,208 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 113 transitions, 2251 flow [2021-03-26 15:24:12,208 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 113 transitions, 2251 flow [2021-03-26 15:24:12,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 113 transitions, 2251 flow [2021-03-26 15:24:12,234 INFO L129 PetriNetUnfolder]: 44/198 cut-off events. [2021-03-26 15:24:12,234 INFO L130 PetriNetUnfolder]: For 3073/3082 co-relation queries the response was YES. [2021-03-26 15:24:12,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1698 conditions, 198 events. 44/198 cut-off events. For 3073/3082 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1121 event pairs, 0 based on Foata normal form. 5/203 useless extension candidates. Maximal degree in co-relation 1648. Up to 80 conditions per place. [2021-03-26 15:24:12,236 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 15:24:12,241 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:12,241 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:12,241 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 15:24:12,241 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 113 transitions, 2251 flow [2021-03-26 15:24:12,241 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) [2021-03-26 15:24:12,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:12,242 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:12,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 15:24:12,242 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:12,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:12,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1703419518, now seen corresponding path program 3 times [2021-03-26 15:24:12,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:12,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321515196] [2021-03-26 15:24:12,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:12,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:12,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:12,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:12,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321515196] [2021-03-26 15:24:12,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:12,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 15:24:12,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868637286] [2021-03-26 15:24:12,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 15:24:12,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:12,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 15:24:12,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 15:24:12,289 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:12,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 113 transitions, 2251 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) [2021-03-26 15:24:12,289 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:12,289 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:12,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:12,521 INFO L129 PetriNetUnfolder]: 50/218 cut-off events. [2021-03-26 15:24:12,522 INFO L130 PetriNetUnfolder]: For 3308/3328 co-relation queries the response was YES. [2021-03-26 15:24:12,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2044 conditions, 218 events. 50/218 cut-off events. For 3308/3328 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1250 event pairs, 0 based on Foata normal form. 5/222 useless extension candidates. Maximal degree in co-relation 1990. Up to 88 conditions per place. [2021-03-26 15:24:12,524 INFO L132 encePairwiseOnDemand]: 54/70 looper letters, 22 selfloop transitions, 76 changer transitions 22/129 dead transitions. [2021-03-26 15:24:12,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 129 transitions, 2741 flow [2021-03-26 15:24:12,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 15:24:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 15:24:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 366 transitions. [2021-03-26 15:24:12,526 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4357142857142857 [2021-03-26 15:24:12,526 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 366 transitions. [2021-03-26 15:24:12,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 366 transitions. [2021-03-26 15:24:12,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:12,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 366 transitions. [2021-03-26 15:24:12,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.5) internal successors, (366), 12 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:12,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 70.0) internal successors, (910), 13 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:12,528 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 70.0) internal successors, (910), 13 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:12,528 INFO L185 Difference]: Start difference. First operand has 96 places, 113 transitions, 2251 flow. Second operand 12 states and 366 transitions. [2021-03-26 15:24:12,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 129 transitions, 2741 flow [2021-03-26 15:24:12,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 129 transitions, 2543 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-26 15:24:12,545 INFO L241 Difference]: Finished difference. Result has 102 places, 102 transitions, 1978 flow [2021-03-26 15:24:12,545 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2075, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1978, PETRI_PLACES=102, PETRI_TRANSITIONS=102} [2021-03-26 15:24:12,545 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 69 predicate places. [2021-03-26 15:24:12,545 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:12,546 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 102 transitions, 1978 flow [2021-03-26 15:24:12,546 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 102 transitions, 1978 flow [2021-03-26 15:24:12,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 102 transitions, 1978 flow [2021-03-26 15:24:12,562 INFO L129 PetriNetUnfolder]: 38/178 cut-off events. [2021-03-26 15:24:12,562 INFO L130 PetriNetUnfolder]: For 2399/2421 co-relation queries the response was YES. [2021-03-26 15:24:12,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1525 conditions, 178 events. 38/178 cut-off events. For 2399/2421 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 971 event pairs, 0 based on Foata normal form. 3/180 useless extension candidates. Maximal degree in co-relation 1474. Up to 68 conditions per place. [2021-03-26 15:24:12,564 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 15:24:12,567 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:12,567 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:12,567 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 15:24:12,568 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 102 transitions, 1978 flow [2021-03-26 15:24:12,568 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) [2021-03-26 15:24:12,568 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:12,568 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:12,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 15:24:12,568 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:12,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:12,568 INFO L82 PathProgramCache]: Analyzing trace with hash 985161423, now seen corresponding path program 1 times [2021-03-26 15:24:12,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:12,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7894121] [2021-03-26 15:24:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:12,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:12,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:12,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7894121] [2021-03-26 15:24:12,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:12,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 15:24:12,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454642094] [2021-03-26 15:24:12,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 15:24:12,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:12,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 15:24:12,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 15:24:12,615 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:12,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 102 transitions, 1978 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) [2021-03-26 15:24:12,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:12,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:12,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:12,848 INFO L129 PetriNetUnfolder]: 37/187 cut-off events. [2021-03-26 15:24:12,848 INFO L130 PetriNetUnfolder]: For 2869/2889 co-relation queries the response was YES. [2021-03-26 15:24:12,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1779 conditions, 187 events. 37/187 cut-off events. For 2869/2889 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1057 event pairs, 0 based on Foata normal form. 11/197 useless extension candidates. Maximal degree in co-relation 1727. Up to 69 conditions per place. [2021-03-26 15:24:12,850 INFO L132 encePairwiseOnDemand]: 55/70 looper letters, 24 selfloop transitions, 63 changer transitions 18/114 dead transitions. [2021-03-26 15:24:12,850 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 114 transitions, 2365 flow [2021-03-26 15:24:12,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 15:24:12,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 15:24:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 366 transitions. [2021-03-26 15:24:12,851 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4357142857142857 [2021-03-26 15:24:12,851 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 366 transitions. [2021-03-26 15:24:12,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 366 transitions. [2021-03-26 15:24:12,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:12,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 366 transitions. [2021-03-26 15:24:12,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.5) internal successors, (366), 12 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:12,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 70.0) internal successors, (910), 13 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:12,853 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 70.0) internal successors, (910), 13 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:12,853 INFO L185 Difference]: Start difference. First operand has 98 places, 102 transitions, 1978 flow. Second operand 12 states and 366 transitions. [2021-03-26 15:24:12,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 114 transitions, 2365 flow [2021-03-26 15:24:12,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 114 transitions, 2218 flow, removed 12 selfloop flow, removed 7 redundant places. [2021-03-26 15:24:12,867 INFO L241 Difference]: Finished difference. Result has 102 places, 88 transitions, 1641 flow [2021-03-26 15:24:12,868 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=1778, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1641, PETRI_PLACES=102, PETRI_TRANSITIONS=88} [2021-03-26 15:24:12,868 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 69 predicate places. [2021-03-26 15:24:12,868 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:12,868 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 88 transitions, 1641 flow [2021-03-26 15:24:12,868 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 88 transitions, 1641 flow [2021-03-26 15:24:12,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 88 transitions, 1641 flow [2021-03-26 15:24:12,881 INFO L129 PetriNetUnfolder]: 26/136 cut-off events. [2021-03-26 15:24:12,881 INFO L130 PetriNetUnfolder]: For 1818/1819 co-relation queries the response was YES. [2021-03-26 15:24:12,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 136 events. 26/136 cut-off events. For 1818/1819 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 663 event pairs, 0 based on Foata normal form. 1/137 useless extension candidates. Maximal degree in co-relation 1049. Up to 41 conditions per place. [2021-03-26 15:24:12,883 INFO L142 LiptonReduction]: Number of co-enabled transitions 52 [2021-03-26 15:24:12,887 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:12,887 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:12,887 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 15:24:12,887 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 88 transitions, 1641 flow [2021-03-26 15:24:12,888 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) [2021-03-26 15:24:12,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:12,888 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:12,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-26 15:24:12,888 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:12,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:12,888 INFO L82 PathProgramCache]: Analyzing trace with hash -226128115, now seen corresponding path program 1 times [2021-03-26 15:24:12,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:12,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555295151] [2021-03-26 15:24:12,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:12,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:12,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:12,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:12,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:12,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555295151] [2021-03-26 15:24:12,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:12,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:24:12,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759553803] [2021-03-26 15:24:12,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:24:12,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:12,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:24:12,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:24:12,928 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:12,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 88 transitions, 1641 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) [2021-03-26 15:24:12,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:12,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:12,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:13,055 INFO L129 PetriNetUnfolder]: 20/122 cut-off events. [2021-03-26 15:24:13,055 INFO L130 PetriNetUnfolder]: For 1927/1929 co-relation queries the response was YES. [2021-03-26 15:24:13,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 122 events. 20/122 cut-off events. For 1927/1929 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 581 event pairs, 0 based on Foata normal form. 8/130 useless extension candidates. Maximal degree in co-relation 1086. Up to 37 conditions per place. [2021-03-26 15:24:13,056 INFO L132 encePairwiseOnDemand]: 58/70 looper letters, 19 selfloop transitions, 54 changer transitions 5/87 dead transitions. [2021-03-26 15:24:13,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 87 transitions, 1763 flow [2021-03-26 15:24:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:24:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:24:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 272 transitions. [2021-03-26 15:24:13,058 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43174603174603177 [2021-03-26 15:24:13,058 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 272 transitions. [2021-03-26 15:24:13,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 272 transitions. [2021-03-26 15:24:13,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:13,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 272 transitions. [2021-03-26 15:24:13,061 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) [2021-03-26 15:24:13,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:13,062 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:13,062 INFO L185 Difference]: Start difference. First operand has 102 places, 88 transitions, 1641 flow. Second operand 9 states and 272 transitions. [2021-03-26 15:24:13,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 87 transitions, 1763 flow [2021-03-26 15:24:13,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 87 transitions, 1727 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-26 15:24:13,072 INFO L241 Difference]: Finished difference. Result has 105 places, 79 transitions, 1535 flow [2021-03-26 15:24:13,073 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=1481, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1535, PETRI_PLACES=105, PETRI_TRANSITIONS=79} [2021-03-26 15:24:13,074 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 72 predicate places. [2021-03-26 15:24:13,074 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:13,075 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 79 transitions, 1535 flow [2021-03-26 15:24:13,075 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 79 transitions, 1535 flow [2021-03-26 15:24:13,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 79 transitions, 1535 flow [2021-03-26 15:24:13,085 INFO L129 PetriNetUnfolder]: 17/108 cut-off events. [2021-03-26 15:24:13,085 INFO L130 PetriNetUnfolder]: For 1462/1463 co-relation queries the response was YES. [2021-03-26 15:24:13,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 108 events. 17/108 cut-off events. For 1462/1463 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 492 event pairs, 0 based on Foata normal form. 1/109 useless extension candidates. Maximal degree in co-relation 894. Up to 31 conditions per place. [2021-03-26 15:24:13,086 INFO L142 LiptonReduction]: Number of co-enabled transitions 52 [2021-03-26 15:24:13,089 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:13,089 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:13,089 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 15:24:13,090 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 79 transitions, 1535 flow [2021-03-26 15:24:13,090 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) [2021-03-26 15:24:13,090 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:13,090 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:13,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-26 15:24:13,090 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:13,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:13,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1025577597, now seen corresponding path program 2 times [2021-03-26 15:24:13,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:13,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214798904] [2021-03-26 15:24:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:13,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:13,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:24:13,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:13,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:13,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214798904] [2021-03-26 15:24:13,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:13,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:24:13,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659113822] [2021-03-26 15:24:13,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:24:13,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:13,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:24:13,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:24:13,131 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:13,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 79 transitions, 1535 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) [2021-03-26 15:24:13,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:13,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:13,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:13,240 INFO L129 PetriNetUnfolder]: 10/81 cut-off events. [2021-03-26 15:24:13,241 INFO L130 PetriNetUnfolder]: For 1695/1697 co-relation queries the response was YES. [2021-03-26 15:24:13,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 81 events. 10/81 cut-off events. For 1695/1697 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 339 event pairs, 0 based on Foata normal form. 10/91 useless extension candidates. Maximal degree in co-relation 846. Up to 25 conditions per place. [2021-03-26 15:24:13,241 INFO L132 encePairwiseOnDemand]: 59/70 looper letters, 5 selfloop transitions, 22 changer transitions 26/62 dead transitions. [2021-03-26 15:24:13,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 62 transitions, 1349 flow [2021-03-26 15:24:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:24:13,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:24:13,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 263 transitions. [2021-03-26 15:24:13,243 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4174603174603175 [2021-03-26 15:24:13,243 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 263 transitions. [2021-03-26 15:24:13,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 263 transitions. [2021-03-26 15:24:13,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:13,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 263 transitions. [2021-03-26 15:24:13,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 29.22222222222222) internal successors, (263), 9 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:13,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:13,244 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:13,244 INFO L185 Difference]: Start difference. First operand has 105 places, 79 transitions, 1535 flow. Second operand 9 states and 263 transitions. [2021-03-26 15:24:13,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 62 transitions, 1349 flow [2021-03-26 15:24:13,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 62 transitions, 1125 flow, removed 2 selfloop flow, removed 20 redundant places. [2021-03-26 15:24:13,253 INFO L241 Difference]: Finished difference. Result has 91 places, 35 transitions, 543 flow [2021-03-26 15:24:13,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=983, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=543, PETRI_PLACES=91, PETRI_TRANSITIONS=35} [2021-03-26 15:24:13,254 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 58 predicate places. [2021-03-26 15:24:13,254 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:13,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 35 transitions, 543 flow [2021-03-26 15:24:13,254 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 35 transitions, 543 flow [2021-03-26 15:24:13,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 35 transitions, 543 flow [2021-03-26 15:24:13,258 INFO L129 PetriNetUnfolder]: 5/39 cut-off events. [2021-03-26 15:24:13,258 INFO L130 PetriNetUnfolder]: For 335/335 co-relation queries the response was YES. [2021-03-26 15:24:13,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 39 events. 5/39 cut-off events. For 335/335 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 247. Up to 11 conditions per place. [2021-03-26 15:24:13,258 INFO L142 LiptonReduction]: Number of co-enabled transitions 4 [2021-03-26 15:24:13,261 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:13,261 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:13,261 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 15:24:13,262 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 35 transitions, 543 flow [2021-03-26 15:24:13,262 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) [2021-03-26 15:24:13,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:24:13,262 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:24:13,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-26 15:24:13,263 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:24:13,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:24:13,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1450318777, now seen corresponding path program 3 times [2021-03-26 15:24:13,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:24:13,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573413214] [2021-03-26 15:24:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:24:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:24:13,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:24:13,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:24:13,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:24:13,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:24:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:24:13,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573413214] [2021-03-26 15:24:13,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:24:13,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 15:24:13,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109787257] [2021-03-26 15:24:13,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 15:24:13,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:24:13,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 15:24:13,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 15:24:13,312 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-26 15:24:13,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 35 transitions, 543 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) [2021-03-26 15:24:13,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:24:13,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-26 15:24:13,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:24:13,400 INFO L129 PetriNetUnfolder]: 4/31 cut-off events. [2021-03-26 15:24:13,400 INFO L130 PetriNetUnfolder]: For 431/433 co-relation queries the response was YES. [2021-03-26 15:24:13,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 31 events. 4/31 cut-off events. For 431/433 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 58 event pairs, 0 based on Foata normal form. 5/36 useless extension candidates. Maximal degree in co-relation 269. Up to 11 conditions per place. [2021-03-26 15:24:13,400 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2021-03-26 15:24:13,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 27 transitions, 535 flow [2021-03-26 15:24:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 15:24:13,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 15:24:13,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 300 transitions. [2021-03-26 15:24:13,404 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38961038961038963 [2021-03-26 15:24:13,404 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 300 transitions. [2021-03-26 15:24:13,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 300 transitions. [2021-03-26 15:24:13,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:24:13,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 300 transitions. [2021-03-26 15:24:13,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 27.272727272727273) internal successors, (300), 11 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:13,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 70.0) internal successors, (840), 12 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:13,419 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 70.0) internal successors, (840), 12 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:24:13,419 INFO L185 Difference]: Start difference. First operand has 84 places, 35 transitions, 543 flow. Second operand 11 states and 300 transitions. [2021-03-26 15:24:13,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 27 transitions, 535 flow [2021-03-26 15:24:13,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 27 transitions, 236 flow, removed 5 selfloop flow, removed 43 redundant places. [2021-03-26 15:24:13,421 INFO L241 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2021-03-26 15:24:13,421 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2021-03-26 15:24:13,422 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2021-03-26 15:24:13,422 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:24:13,422 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 0 transitions, 0 flow [2021-03-26 15:24:13,422 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 0 transitions, 0 flow [2021-03-26 15:24:13,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 15:24:13,422 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 15:24:13,422 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 15:24:13,422 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. [2021-03-26 15:24:13,422 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 15:24:13,422 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:24:13,422 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:24:13,423 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 15:24:13,423 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 15:24:13,423 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) [2021-03-26 15:24:13,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-26 15:24:13,426 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 03:24:13 BasicIcfg [2021-03-26 15:24:13,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 15:24:13,427 INFO L168 Benchmark]: Toolchain (without parser) took 11877.25 ms. Allocated memory was 255.9 MB in the beginning and 539.0 MB in the end (delta: 283.1 MB). Free memory was 236.6 MB in the beginning and 238.0 MB in the end (delta: -1.4 MB). Peak memory consumption was 281.0 MB. Max. memory is 16.0 GB. [2021-03-26 15:24:13,427 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 15:24:13,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.66 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 235.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 15:24:13,427 INFO L168 Benchmark]: Boogie Preprocessor took 11.73 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.1 MB in the end (delta: 848.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 15:24:13,427 INFO L168 Benchmark]: RCFGBuilder took 309.03 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 236.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.0 GB. [2021-03-26 15:24:13,428 INFO L168 Benchmark]: TraceAbstraction took 11523.99 ms. Allocated memory was 255.9 MB in the beginning and 539.0 MB in the end (delta: 283.1 MB). Free memory was 235.9 MB in the beginning and 238.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 280.3 MB. Max. memory is 16.0 GB. [2021-03-26 15:24:13,428 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 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.66 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 235.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.73 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.1 MB in the end (delta: 848.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 309.03 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 236.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11523.99 ms. Allocated memory was 255.9 MB in the beginning and 539.0 MB in the end (delta: 283.1 MB). Free memory was 235.9 MB in the beginning and 238.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 280.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 873.7ms, 45 PlacesBefore, 33 PlacesAfterwards, 32 TransitionsBefore, 20 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 618 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 274, positive: 244, positive conditional: 244, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 274, positive: 244, positive conditional: 0, positive unconditional: 244, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 274, positive: 244, positive conditional: 0, positive unconditional: 244, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 242, positive: 217, positive conditional: 0, positive unconditional: 217, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 242, positive: 185, positive conditional: 0, positive unconditional: 185, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 276, positive: 135, positive conditional: 0, positive unconditional: 135, negative: 141, negative conditional: 0, negative unconditional: 141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 274, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 242, unknown conditional: 0, unknown unconditional: 242] , Statistics on independence cache: Total cache size (in pairs): 242, Positive cache size: 217, Positive conditional cache size: 0, Positive unconditional cache size: 217, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85.1ms, 32 PlacesBefore, 32 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 242, Positive cache size: 217, Positive conditional cache size: 0, Positive unconditional cache size: 217, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 194.6ms, 36 PlacesBefore, 36 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 226 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 25 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 25, positive: 25, positive conditional: 15, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 15, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 5, positive unconditional: 10, 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: 15, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 5, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 31, positive conditional: 23, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 5, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 257, Positive cache size: 232, Positive conditional cache size: 5, Positive unconditional cache size: 227, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 372.3ms, 41 PlacesBefore, 41 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 132 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 132, positive: 132, positive conditional: 132, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 132, positive: 132, positive conditional: 92, positive unconditional: 40, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 132, positive: 132, positive conditional: 92, positive unconditional: 40, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 132, positive: 132, positive conditional: 92, positive unconditional: 40, 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): 257, Positive cache size: 232, Positive conditional cache size: 5, Positive unconditional cache size: 227, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 469.8ms, 46 PlacesBefore, 46 PlacesAfterwards, 86 TransitionsBefore, 86 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 222 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 222, positive: 222, positive conditional: 222, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 222, positive: 222, positive conditional: 162, positive unconditional: 60, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 222, positive: 222, positive conditional: 162, positive unconditional: 60, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 222, positive: 222, positive conditional: 162, positive unconditional: 60, 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): 257, Positive cache size: 232, Positive conditional cache size: 5, Positive unconditional cache size: 227, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 358.8ms, 49 PlacesBefore, 48 PlacesAfterwards, 96 TransitionsBefore, 95 TransitionsAfterwards, 276 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 132 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 132, positive: 132, positive conditional: 132, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 132, positive: 132, positive conditional: 92, positive unconditional: 40, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 132, positive: 132, positive conditional: 92, positive unconditional: 40, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 132, positive: 132, positive conditional: 92, positive unconditional: 40, 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): 257, Positive cache size: 232, Positive conditional cache size: 5, Positive unconditional cache size: 227, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.1ms, 49 PlacesBefore, 49 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 257, Positive cache size: 232, Positive conditional cache size: 5, Positive unconditional cache size: 227, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.3ms, 56 PlacesBefore, 56 PlacesAfterwards, 155 TransitionsBefore, 155 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 23, positive: 23, positive conditional: 18, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 18, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 1, positive unconditional: 3, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 23, positive: 19, positive conditional: 17, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.1ms, 61 PlacesBefore, 61 PlacesAfterwards, 147 TransitionsBefore, 147 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.4ms, 65 PlacesBefore, 65 PlacesAfterwards, 185 TransitionsBefore, 185 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 161.4ms, 72 PlacesBefore, 72 PlacesAfterwards, 210 TransitionsBefore, 210 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 46 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, positive: 46, positive conditional: 46, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, positive: 46, positive conditional: 38, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 46, positive conditional: 38, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 46, positive: 46, positive conditional: 38, positive unconditional: 8, 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 142.3ms, 77 PlacesBefore, 77 PlacesAfterwards, 214 TransitionsBefore, 214 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 23, positive: 23, positive conditional: 19, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 19, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 23, positive: 23, positive conditional: 19, positive unconditional: 4, 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.8ms, 78 PlacesBefore, 78 PlacesAfterwards, 212 TransitionsBefore, 212 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.2ms, 79 PlacesBefore, 79 PlacesAfterwards, 213 TransitionsBefore, 213 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 98.9ms, 81 PlacesBefore, 81 PlacesAfterwards, 201 TransitionsBefore, 201 TransitionsAfterwards, 220 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 87.3ms, 83 PlacesBefore, 83 PlacesAfterwards, 157 TransitionsBefore, 157 TransitionsAfterwards, 106 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 7 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7, positive: 7, positive conditional: 6, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 6, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 7, positive: 7, positive conditional: 6, positive unconditional: 1, 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.5ms, 85 PlacesBefore, 85 PlacesAfterwards, 156 TransitionsBefore, 156 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.6ms, 84 PlacesBefore, 84 PlacesAfterwards, 149 TransitionsBefore, 149 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.9ms, 89 PlacesBefore, 89 PlacesAfterwards, 142 TransitionsBefore, 142 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.4ms, 88 PlacesBefore, 88 PlacesAfterwards, 127 TransitionsBefore, 127 TransitionsAfterwards, 90 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.6ms, 93 PlacesBefore, 93 PlacesAfterwards, 123 TransitionsBefore, 123 TransitionsAfterwards, 90 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.9ms, 93 PlacesBefore, 93 PlacesAfterwards, 117 TransitionsBefore, 117 TransitionsAfterwards, 80 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.4ms, 96 PlacesBefore, 96 PlacesAfterwards, 113 TransitionsBefore, 113 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.2ms, 102 PlacesBefore, 98 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.7ms, 102 PlacesBefore, 102 PlacesAfterwards, 88 TransitionsBefore, 88 TransitionsAfterwards, 52 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.0ms, 105 PlacesBefore, 105 PlacesAfterwards, 79 TransitionsBefore, 79 TransitionsAfterwards, 52 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7ms, 91 PlacesBefore, 84 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: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 45 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: 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: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 261, Positive cache size: 236, Positive conditional cache size: 6, Positive unconditional cache size: 230, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 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: 5.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 11402.0ms, OverallIterations: 27, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 6093.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 935.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 72 SDtfs, 104 SDslu, 10 SDs, 0 SdLazy, 4258 SolverSat, 849 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2187.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 904.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4054occurred in iteration=12, InterpolantAutomatonStates: 206, 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: 33.5ms SsaConstructionTime, 227.7ms SatisfiabilityAnalysisTime, 1069.5ms InterpolantComputationTime, 511 NumberOfCodeBlocks, 511 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 484 ConstructedInterpolants, 0 QuantifiedInterpolants, 1444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 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...