/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 05:36:12,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 05:36:12,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 05:36:12,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 05:36:12,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 05:36:12,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 05:36:12,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 05:36:12,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 05:36:12,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 05:36:12,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 05:36:12,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 05:36:12,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 05:36:12,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 05:36:12,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 05:36:12,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 05:36:12,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 05:36:12,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 05:36:12,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 05:36:12,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 05:36:12,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 05:36:12,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 05:36:12,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 05:36:12,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 05:36:12,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 05:36:12,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 05:36:12,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 05:36:12,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 05:36:12,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 05:36:12,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 05:36:12,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-26 05:36:12,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 05:36:12,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 05:36:12,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 05:36:12,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 05:36:12,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 05:36:12,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 05:36:12,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 05:36:13,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 05:36:13,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 05:36:13,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 05:36:13,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 05:36:13,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 05:36:13,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 05:36:13,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 05:36:13,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 05:36:13,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 05:36:13,037 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 05:36:13,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 05:36:13,037 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 05:36:13,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 05:36:13,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 05:36:13,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 05:36:13,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 05:36:13,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 05:36:13,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 05:36:13,038 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 05:36:13,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 05:36:13,039 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 05:36:13,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 05:36:13,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 05:36:13,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 05:36:13,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 05:36:13,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 05:36:13,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 05:36:13,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 05:36:13,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 05:36:13,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 05:36:13,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 05:36:13,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 05:36:13,040 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 05:36:13,040 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 05:36:13,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 05:36:13,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 05:36:13,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 05:36:13,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 05:36:13,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 05:36:13,331 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 05:36:13,332 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 05:36:13,332 INFO L432 ainManager$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 05:36:13,333 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 05:36:13,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 05:36:13,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 05:36:13,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 05:36:13,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 05:36:13,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 05:36:13,369 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 05:36:13" (1/1) ... [2021-03-26 05:36:13,376 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 05:36:13" (1/1) ... [2021-03-26 05:36:13,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 05:36:13,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 05:36:13,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 05:36:13,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 05:36:13,391 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 05:36:13" (1/1) ... [2021-03-26 05:36:13,391 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 05:36:13" (1/1) ... [2021-03-26 05:36:13,392 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 05:36:13" (1/1) ... [2021-03-26 05:36:13,392 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 05:36:13" (1/1) ... [2021-03-26 05:36:13,394 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 05:36:13" (1/1) ... [2021-03-26 05:36:13,395 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 05:36:13" (1/1) ... [2021-03-26 05:36:13,396 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 05:36:13" (1/1) ... [2021-03-26 05:36:13,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 05:36:13,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 05:36:13,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 05:36:13,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 05:36:13,399 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 05:36:13" (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 05:36:13,464 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 05:36:13,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 05:36:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 05:36:13,465 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 05:36:13,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 05:36:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 05:36:13,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 05:36:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 05:36:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 05:36:13,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-26 05:36:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-26 05:36:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-26 05:36:13,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-26 05:36:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-26 05:36:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-26 05:36:13,468 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 05:36:13,708 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 05:36:13,708 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 05:36:13,709 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:36:13 BoogieIcfgContainer [2021-03-26 05:36:13,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 05:36:13,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 05:36:13,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 05:36:13,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 05:36:13,713 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 05:36:13" (1/2) ... [2021-03-26 05:36:13,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a798524 and model type ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 05:36:13, skipping insertion in model container [2021-03-26 05:36:13,714 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 05:36:13" (2/2) ... [2021-03-26 05:36:13,714 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-4.wvr.bpl [2021-03-26 05:36:13,718 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 05:36:13,730 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 05:36:13,730 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 05:36:13,818 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-26 05:36:13,829 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 05:36:13,846 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 05:36:13,846 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 05:36:13,846 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 05:36:13,847 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 05:36:13,847 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 05:36:13,847 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 05:36:13,847 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 05:36:13,847 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 05:36:13,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 38 transitions, 108 flow [2021-03-26 05:36:13,880 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-26 05:36:13,880 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 05:36:13,881 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 05:36:13,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 38 transitions, 108 flow [2021-03-26 05:36:13,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 32 transitions, 88 flow [2021-03-26 05:36:13,886 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:13,898 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 32 transitions, 88 flow [2021-03-26 05:36:13,900 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 32 transitions, 88 flow [2021-03-26 05:36:13,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 32 transitions, 88 flow [2021-03-26 05:36:13,913 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-26 05:36:13,914 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 05:36:13,914 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 05:36:13,916 INFO L142 LiptonReduction]: Number of co-enabled transitions 456 [2021-03-26 05:36:14,693 INFO L154 LiptonReduction]: Checked pairs total: 618 [2021-03-26 05:36:14,693 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-26 05:36:14,695 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 810 [2021-03-26 05:36:14,716 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 05:36:14,716 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 05:36:14,716 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:14,717 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 05:36:14,717 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:14,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:14,730 INFO L82 PathProgramCache]: Analyzing trace with hash 807092125, now seen corresponding path program 1 times [2021-03-26 05:36:14,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:14,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457971698] [2021-03-26 05:36:14,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:14,922 INFO L142 QuantifierPusher]: treesize reduction 17, result has 43.3 percent of original size [2021-03-26 05:36:14,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:36:14,943 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 05:36:14,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 05:36:14,949 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 05:36:14,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 05:36:14,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:14,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 05:36:14,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:14,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:14,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:14,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 05:36:14,966 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 05:36:14,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457971698] [2021-03-26 05:36:14,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:14,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 05:36:14,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219680348] [2021-03-26 05:36:14,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:36:14,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:14,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:36:14,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:36:14,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 50 [2021-03-26 05:36:14,991 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 05:36:14,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:14,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 50 [2021-03-26 05:36:14,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:15,124 INFO L129 PetriNetUnfolder]: 231/433 cut-off events. [2021-03-26 05:36:15,124 INFO L130 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2021-03-26 05:36:15,129 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 05:36:15,132 INFO L132 encePairwiseOnDemand]: 39/50 looper letters, 18 selfloop transitions, 9 changer transitions 1/37 dead transitions. [2021-03-26 05:36:15,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 154 flow [2021-03-26 05:36:15,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 05:36:15,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 05:36:15,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2021-03-26 05:36:15,141 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.696 [2021-03-26 05:36:15,142 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 174 transitions. [2021-03-26 05:36:15,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 174 transitions. [2021-03-26 05:36:15,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:15,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 174 transitions. [2021-03-26 05:36:15,147 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 05:36:15,150 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 05:36:15,150 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 05:36:15,152 INFO L185 Difference]: Start difference. First operand has 33 places, 20 transitions, 64 flow. Second operand 5 states and 174 transitions. [2021-03-26 05:36:15,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 154 flow [2021-03-26 05:36:15,155 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 05:36:15,156 INFO L241 Difference]: Finished difference. Result has 32 places, 27 transitions, 112 flow [2021-03-26 05:36:15,158 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 05:36:15,159 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2021-03-26 05:36:15,159 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:15,159 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 27 transitions, 112 flow [2021-03-26 05:36:15,159 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 27 transitions, 112 flow [2021-03-26 05:36:15,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 112 flow [2021-03-26 05:36:15,171 INFO L129 PetriNetUnfolder]: 63/175 cut-off events. [2021-03-26 05:36:15,171 INFO L130 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2021-03-26 05:36:15,172 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 05:36:15,174 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 05:36:15,179 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:15,179 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:15,179 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 05:36:15,181 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 112 flow [2021-03-26 05:36:15,181 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 05:36:15,181 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:15,181 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 05:36:15,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 05:36:15,182 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:15,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:15,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1384460157, now seen corresponding path program 2 times [2021-03-26 05:36:15,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:15,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865394386] [2021-03-26 05:36:15,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:15,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:15,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:15,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:15,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:15,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:15,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:15,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:15,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:15,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:15,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:15,227 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 05:36:15,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865394386] [2021-03-26 05:36:15,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:15,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:36:15,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848107194] [2021-03-26 05:36:15,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:36:15,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:15,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:36:15,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:36:15,230 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2021-03-26 05:36:15,230 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 05:36:15,231 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:15,231 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2021-03-26 05:36:15,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:15,428 INFO L129 PetriNetUnfolder]: 451/820 cut-off events. [2021-03-26 05:36:15,428 INFO L130 PetriNetUnfolder]: For 468/506 co-relation queries the response was YES. [2021-03-26 05:36:15,430 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 05:36:15,436 INFO L132 encePairwiseOnDemand]: 40/50 looper letters, 24 selfloop transitions, 29 changer transitions 0/62 dead transitions. [2021-03-26 05:36:15,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 62 transitions, 368 flow [2021-03-26 05:36:15,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 05:36:15,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 05:36:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 193 transitions. [2021-03-26 05:36:15,441 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6433333333333333 [2021-03-26 05:36:15,441 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 193 transitions. [2021-03-26 05:36:15,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 193 transitions. [2021-03-26 05:36:15,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:15,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 193 transitions. [2021-03-26 05:36:15,445 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 05:36:15,448 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 05:36:15,448 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 05:36:15,448 INFO L185 Difference]: Start difference. First operand has 32 places, 27 transitions, 112 flow. Second operand 6 states and 193 transitions. [2021-03-26 05:36:15,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 62 transitions, 368 flow [2021-03-26 05:36:15,451 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 05:36:15,453 INFO L241 Difference]: Finished difference. Result has 36 places, 51 transitions, 307 flow [2021-03-26 05:36:15,453 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 05:36:15,454 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2021-03-26 05:36:15,454 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:15,454 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 51 transitions, 307 flow [2021-03-26 05:36:15,455 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 51 transitions, 307 flow [2021-03-26 05:36:15,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 51 transitions, 307 flow [2021-03-26 05:36:15,495 INFO L129 PetriNetUnfolder]: 262/568 cut-off events. [2021-03-26 05:36:15,495 INFO L130 PetriNetUnfolder]: For 442/483 co-relation queries the response was YES. [2021-03-26 05:36:15,496 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 05:36:15,500 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-26 05:36:15,702 INFO L154 LiptonReduction]: Checked pairs total: 25 [2021-03-26 05:36:15,702 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:36:15,702 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 248 [2021-03-26 05:36:15,704 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 51 transitions, 309 flow [2021-03-26 05:36:15,704 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 05:36:15,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:15,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:36:15,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 05:36:15,705 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:15,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1516261411, now seen corresponding path program 3 times [2021-03-26 05:36:15,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:15,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400259776] [2021-03-26 05:36:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:15,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:15,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:15,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:15,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:15,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:15,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:15,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:15,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:15,773 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 05:36:15,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400259776] [2021-03-26 05:36:15,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:15,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 05:36:15,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018222337] [2021-03-26 05:36:15,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 05:36:15,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:15,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 05:36:15,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 05:36:15,775 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 51 [2021-03-26 05:36:15,775 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 05:36:15,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:15,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 51 [2021-03-26 05:36:15,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:15,913 INFO L129 PetriNetUnfolder]: 482/880 cut-off events. [2021-03-26 05:36:15,914 INFO L130 PetriNetUnfolder]: For 1003/1080 co-relation queries the response was YES. [2021-03-26 05:36:15,925 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 05:36:15,931 INFO L132 encePairwiseOnDemand]: 43/51 looper letters, 50 selfloop transitions, 26 changer transitions 0/85 dead transitions. [2021-03-26 05:36:15,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 85 transitions, 688 flow [2021-03-26 05:36:15,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 05:36:15,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 05:36:15,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2021-03-26 05:36:15,933 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6196078431372549 [2021-03-26 05:36:15,933 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 158 transitions. [2021-03-26 05:36:15,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 158 transitions. [2021-03-26 05:36:15,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:15,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 158 transitions. [2021-03-26 05:36:15,934 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 05:36:15,935 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 05:36:15,935 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 05:36:15,935 INFO L185 Difference]: Start difference. First operand has 36 places, 51 transitions, 309 flow. Second operand 5 states and 158 transitions. [2021-03-26 05:36:15,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 85 transitions, 688 flow [2021-03-26 05:36:15,940 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 05:36:15,942 INFO L241 Difference]: Finished difference. Result has 41 places, 72 transitions, 563 flow [2021-03-26 05:36:15,942 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 05:36:15,942 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2021-03-26 05:36:15,942 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:15,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 72 transitions, 563 flow [2021-03-26 05:36:15,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 72 transitions, 563 flow [2021-03-26 05:36:15,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 72 transitions, 563 flow [2021-03-26 05:36:15,986 INFO L129 PetriNetUnfolder]: 283/588 cut-off events. [2021-03-26 05:36:15,986 INFO L130 PetriNetUnfolder]: For 924/993 co-relation queries the response was YES. [2021-03-26 05:36:15,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2052 conditions, 588 events. 283/588 cut-off events. For 924/993 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3339 event pairs, 38 based on Foata normal form. 21/596 useless extension candidates. Maximal degree in co-relation 1987. Up to 296 conditions per place. [2021-03-26 05:36:15,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 258 [2021-03-26 05:36:16,434 INFO L154 LiptonReduction]: Checked pairs total: 165 [2021-03-26 05:36:16,434 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 05:36:16,434 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 492 [2021-03-26 05:36:16,436 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 72 transitions, 573 flow [2021-03-26 05:36:16,437 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 05:36:16,437 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:16,437 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 05:36:16,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 05:36:16,437 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:16,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:16,438 INFO L82 PathProgramCache]: Analyzing trace with hash 2037627309, now seen corresponding path program 1 times [2021-03-26 05:36:16,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:16,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228213477] [2021-03-26 05:36:16,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:16,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:16,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:16,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:16,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:16,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:16,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:16,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:16,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:16,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:16,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:16,506 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 05:36:16,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228213477] [2021-03-26 05:36:16,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:16,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:36:16,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776321744] [2021-03-26 05:36:16,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:36:16,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:16,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:36:16,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:36:16,508 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-03-26 05:36:16,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 72 transitions, 573 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 05:36:16,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:16,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-03-26 05:36:16,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:16,716 INFO L129 PetriNetUnfolder]: 496/919 cut-off events. [2021-03-26 05:36:16,717 INFO L130 PetriNetUnfolder]: For 1858/1959 co-relation queries the response was YES. [2021-03-26 05:36:16,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3956 conditions, 919 events. 496/919 cut-off events. For 1858/1959 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5232 event pairs, 82 based on Foata normal form. 51/966 useless extension candidates. Maximal degree in co-relation 3884. Up to 370 conditions per place. [2021-03-26 05:36:16,724 INFO L132 encePairwiseOnDemand]: 42/56 looper letters, 26 selfloop transitions, 62 changer transitions 0/97 dead transitions. [2021-03-26 05:36:16,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 97 transitions, 949 flow [2021-03-26 05:36:16,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 05:36:16,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 05:36:16,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2021-03-26 05:36:16,725 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2021-03-26 05:36:16,726 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 201 transitions. [2021-03-26 05:36:16,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 201 transitions. [2021-03-26 05:36:16,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:16,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 201 transitions. [2021-03-26 05:36:16,727 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 05:36:16,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:16,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:16,728 INFO L185 Difference]: Start difference. First operand has 41 places, 72 transitions, 573 flow. Second operand 6 states and 201 transitions. [2021-03-26 05:36:16,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 97 transitions, 949 flow [2021-03-26 05:36:16,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 97 transitions, 944 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 05:36:16,737 INFO L241 Difference]: Finished difference. Result has 46 places, 86 transitions, 867 flow [2021-03-26 05:36:16,737 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=568, 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=867, PETRI_PLACES=46, PETRI_TRANSITIONS=86} [2021-03-26 05:36:16,738 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2021-03-26 05:36:16,738 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:16,738 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 86 transitions, 867 flow [2021-03-26 05:36:16,738 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 86 transitions, 867 flow [2021-03-26 05:36:16,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 86 transitions, 867 flow [2021-03-26 05:36:16,792 INFO L129 PetriNetUnfolder]: 286/607 cut-off events. [2021-03-26 05:36:16,792 INFO L130 PetriNetUnfolder]: For 1645/1741 co-relation queries the response was YES. [2021-03-26 05:36:16,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2654 conditions, 607 events. 286/607 cut-off events. For 1645/1741 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3524 event pairs, 41 based on Foata normal form. 21/620 useless extension candidates. Maximal degree in co-relation 2590. Up to 304 conditions per place. [2021-03-26 05:36:16,798 INFO L142 LiptonReduction]: Number of co-enabled transitions 274 [2021-03-26 05:36:17,426 INFO L154 LiptonReduction]: Checked pairs total: 259 [2021-03-26 05:36:17,427 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 05:36:17,427 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 689 [2021-03-26 05:36:17,428 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 86 transitions, 881 flow [2021-03-26 05:36:17,428 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 05:36:17,428 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:17,428 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 05:36:17,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 05:36:17,428 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:17,429 INFO L82 PathProgramCache]: Analyzing trace with hash -117686081, now seen corresponding path program 1 times [2021-03-26 05:36:17,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:17,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687196823] [2021-03-26 05:36:17,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:17,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:17,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:17,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:17,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:17,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:17,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:17,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:17,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:17,464 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 05:36:17,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687196823] [2021-03-26 05:36:17,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:17,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 05:36:17,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515824005] [2021-03-26 05:36:17,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 05:36:17,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:17,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 05:36:17,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 05:36:17,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 63 [2021-03-26 05:36:17,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 86 transitions, 881 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 05:36:17,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:17,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 63 [2021-03-26 05:36:17,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:17,644 INFO L129 PetriNetUnfolder]: 488/918 cut-off events. [2021-03-26 05:36:17,644 INFO L130 PetriNetUnfolder]: For 2928/3041 co-relation queries the response was YES. [2021-03-26 05:36:17,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4632 conditions, 918 events. 488/918 cut-off events. For 2928/3041 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5311 event pairs, 145 based on Foata normal form. 55/969 useless extension candidates. Maximal degree in co-relation 4559. Up to 709 conditions per place. [2021-03-26 05:36:17,651 INFO L132 encePairwiseOnDemand]: 48/63 looper letters, 55 selfloop transitions, 42 changer transitions 0/106 dead transitions. [2021-03-26 05:36:17,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 106 transitions, 1260 flow [2021-03-26 05:36:17,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 05:36:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 05:36:17,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2021-03-26 05:36:17,653 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5523809523809524 [2021-03-26 05:36:17,653 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 174 transitions. [2021-03-26 05:36:17,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 174 transitions. [2021-03-26 05:36:17,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:17,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 174 transitions. [2021-03-26 05:36:17,653 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 05:36:17,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 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 05:36:17,654 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 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 05:36:17,654 INFO L185 Difference]: Start difference. First operand has 46 places, 86 transitions, 881 flow. Second operand 5 states and 174 transitions. [2021-03-26 05:36:17,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 106 transitions, 1260 flow [2021-03-26 05:36:17,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 106 transitions, 1173 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 05:36:17,664 INFO L241 Difference]: Finished difference. Result has 49 places, 96 transitions, 1046 flow [2021-03-26 05:36:17,664 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=805, 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=1046, PETRI_PLACES=49, PETRI_TRANSITIONS=96} [2021-03-26 05:36:17,665 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2021-03-26 05:36:17,665 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:17,665 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 96 transitions, 1046 flow [2021-03-26 05:36:17,665 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 96 transitions, 1046 flow [2021-03-26 05:36:17,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 96 transitions, 1046 flow [2021-03-26 05:36:17,714 INFO L129 PetriNetUnfolder]: 288/613 cut-off events. [2021-03-26 05:36:17,714 INFO L130 PetriNetUnfolder]: For 1974/2079 co-relation queries the response was YES. [2021-03-26 05:36:17,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2686 conditions, 613 events. 288/613 cut-off events. For 1974/2079 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 3677 event pairs, 38 based on Foata normal form. 36/643 useless extension candidates. Maximal degree in co-relation 2625. Up to 305 conditions per place. [2021-03-26 05:36:17,720 INFO L142 LiptonReduction]: Number of co-enabled transitions 276 [2021-03-26 05:36:17,990 INFO L154 LiptonReduction]: Checked pairs total: 66 [2021-03-26 05:36:17,991 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 05:36:17,991 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 326 [2021-03-26 05:36:17,992 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 95 transitions, 1048 flow [2021-03-26 05:36:17,992 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 05:36:17,993 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:17,993 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 05:36:17,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 05:36:17,993 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:17,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:17,994 INFO L82 PathProgramCache]: Analyzing trace with hash 347295864, now seen corresponding path program 1 times [2021-03-26 05:36:17,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:17,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235292883] [2021-03-26 05:36:17,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:18,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:18,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:36:18,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235292883] [2021-03-26 05:36:18,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:18,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 05:36:18,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897976678] [2021-03-26 05:36:18,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 05:36:18,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:18,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 05:36:18,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 05:36:18,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2021-03-26 05:36:18,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 95 transitions, 1048 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 05:36:18,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:18,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2021-03-26 05:36:18,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:18,212 INFO L129 PetriNetUnfolder]: 357/698 cut-off events. [2021-03-26 05:36:18,212 INFO L130 PetriNetUnfolder]: For 2538/2646 co-relation queries the response was YES. [2021-03-26 05:36:18,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3633 conditions, 698 events. 357/698 cut-off events. For 2538/2646 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 3965 event pairs, 67 based on Foata normal form. 35/729 useless extension candidates. Maximal degree in co-relation 3570. Up to 531 conditions per place. [2021-03-26 05:36:18,218 INFO L132 encePairwiseOnDemand]: 51/65 looper letters, 53 selfloop transitions, 49 changer transitions 1/112 dead transitions. [2021-03-26 05:36:18,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 112 transitions, 1450 flow [2021-03-26 05:36:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 05:36:18,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 05:36:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2021-03-26 05:36:18,226 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5230769230769231 [2021-03-26 05:36:18,226 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 170 transitions. [2021-03-26 05:36:18,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 170 transitions. [2021-03-26 05:36:18,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:18,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 170 transitions. [2021-03-26 05:36:18,227 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 05:36:18,227 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 05:36:18,228 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 05:36:18,228 INFO L185 Difference]: Start difference. First operand has 48 places, 95 transitions, 1048 flow. Second operand 5 states and 170 transitions. [2021-03-26 05:36:18,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 112 transitions, 1450 flow [2021-03-26 05:36:18,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 112 transitions, 1314 flow, removed 24 selfloop flow, removed 4 redundant places. [2021-03-26 05:36:18,239 INFO L241 Difference]: Finished difference. Result has 49 places, 104 transitions, 1184 flow [2021-03-26 05:36:18,239 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 05:36:18,239 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2021-03-26 05:36:18,240 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:18,240 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 104 transitions, 1184 flow [2021-03-26 05:36:18,240 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 104 transitions, 1184 flow [2021-03-26 05:36:18,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 104 transitions, 1184 flow [2021-03-26 05:36:18,288 INFO L129 PetriNetUnfolder]: 269/554 cut-off events. [2021-03-26 05:36:18,289 INFO L130 PetriNetUnfolder]: For 1763/1821 co-relation queries the response was YES. [2021-03-26 05:36:18,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2386 conditions, 554 events. 269/554 cut-off events. For 1763/1821 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3130 event pairs, 42 based on Foata normal form. 30/582 useless extension candidates. Maximal degree in co-relation 2333. Up to 293 conditions per place. [2021-03-26 05:36:18,293 INFO L142 LiptonReduction]: Number of co-enabled transitions 204 [2021-03-26 05:36:18,312 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:18,312 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:18,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-26 05:36:18,313 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 104 transitions, 1184 flow [2021-03-26 05:36:18,313 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 05:36:18,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:18,314 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 05:36:18,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 05:36:18,314 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:18,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:18,314 INFO L82 PathProgramCache]: Analyzing trace with hash -877149917, now seen corresponding path program 1 times [2021-03-26 05:36:18,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:18,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410735703] [2021-03-26 05:36:18,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:18,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:18,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:18,355 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 05:36:18,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410735703] [2021-03-26 05:36:18,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:18,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:36:18,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597873989] [2021-03-26 05:36:18,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:36:18,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:18,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:36:18,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:36:18,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2021-03-26 05:36:18,359 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 05:36:18,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:18,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2021-03-26 05:36:18,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:18,575 INFO L129 PetriNetUnfolder]: 371/759 cut-off events. [2021-03-26 05:36:18,576 INFO L130 PetriNetUnfolder]: For 2208/2236 co-relation queries the response was YES. [2021-03-26 05:36:18,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3748 conditions, 759 events. 371/759 cut-off events. For 2208/2236 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4447 event pairs, 64 based on Foata normal form. 14/772 useless extension candidates. Maximal degree in co-relation 3667. Up to 363 conditions per place. [2021-03-26 05:36:18,584 INFO L132 encePairwiseOnDemand]: 41/65 looper letters, 18 selfloop transitions, 131 changer transitions 0/158 dead transitions. [2021-03-26 05:36:18,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 158 transitions, 1994 flow [2021-03-26 05:36:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:36:18,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:36:18,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 241 transitions. [2021-03-26 05:36:18,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5296703296703297 [2021-03-26 05:36:18,586 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 241 transitions. [2021-03-26 05:36:18,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 241 transitions. [2021-03-26 05:36:18,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:18,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 241 transitions. [2021-03-26 05:36:18,587 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 05:36:18,588 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 05:36:18,588 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 05:36:18,588 INFO L185 Difference]: Start difference. First operand has 49 places, 104 transitions, 1184 flow. Second operand 7 states and 241 transitions. [2021-03-26 05:36:18,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 158 transitions, 1994 flow [2021-03-26 05:36:18,596 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 05:36:18,601 INFO L241 Difference]: Finished difference. Result has 56 places, 155 transitions, 2096 flow [2021-03-26 05:36:18,601 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 05:36:18,602 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 23 predicate places. [2021-03-26 05:36:18,602 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:18,602 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 155 transitions, 2096 flow [2021-03-26 05:36:18,602 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 155 transitions, 2096 flow [2021-03-26 05:36:18,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 155 transitions, 2096 flow [2021-03-26 05:36:18,658 INFO L129 PetriNetUnfolder]: 314/678 cut-off events. [2021-03-26 05:36:18,659 INFO L130 PetriNetUnfolder]: For 3136/3233 co-relation queries the response was YES. [2021-03-26 05:36:18,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3624 conditions, 678 events. 314/678 cut-off events. For 3136/3233 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4106 event pairs, 43 based on Foata normal form. 44/722 useless extension candidates. Maximal degree in co-relation 3545. Up to 363 conditions per place. [2021-03-26 05:36:18,667 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-26 05:36:18,684 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:18,684 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:18,684 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-26 05:36:18,686 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 155 transitions, 2096 flow [2021-03-26 05:36:18,686 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 05:36:18,686 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:18,686 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 05:36:18,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 05:36:18,686 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:18,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:18,686 INFO L82 PathProgramCache]: Analyzing trace with hash 928067012, now seen corresponding path program 1 times [2021-03-26 05:36:18,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:18,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227999824] [2021-03-26 05:36:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:18,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:18,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:36:18,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:18,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:18,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:36:18,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227999824] [2021-03-26 05:36:18,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:18,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:36:18,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269883138] [2021-03-26 05:36:18,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:36:18,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:18,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:36:18,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:36:18,744 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2021-03-26 05:36:18,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 155 transitions, 2096 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 05:36:18,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:18,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2021-03-26 05:36:18,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:18,996 INFO L129 PetriNetUnfolder]: 370/801 cut-off events. [2021-03-26 05:36:18,997 INFO L130 PetriNetUnfolder]: For 3400/3432 co-relation queries the response was YES. [2021-03-26 05:36:18,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4897 conditions, 801 events. 370/801 cut-off events. For 3400/3432 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4974 event pairs, 23 based on Foata normal form. 26/826 useless extension candidates. Maximal degree in co-relation 4798. Up to 391 conditions per place. [2021-03-26 05:36:19,004 INFO L132 encePairwiseOnDemand]: 41/65 looper letters, 25 selfloop transitions, 158 changer transitions 2/194 dead transitions. [2021-03-26 05:36:19,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 194 transitions, 2818 flow [2021-03-26 05:36:19,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:36:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:36:19,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 242 transitions. [2021-03-26 05:36:19,005 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5318681318681319 [2021-03-26 05:36:19,005 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 242 transitions. [2021-03-26 05:36:19,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 242 transitions. [2021-03-26 05:36:19,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:19,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 242 transitions. [2021-03-26 05:36:19,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.57142857142857) internal successors, (242), 7 states have internal predecessors, (242), 0 states have call successors, (0), 0 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 05:36:19,007 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 05:36:19,008 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 05:36:19,009 INFO L185 Difference]: Start difference. First operand has 56 places, 155 transitions, 2096 flow. Second operand 7 states and 242 transitions. [2021-03-26 05:36:19,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 194 transitions, 2818 flow [2021-03-26 05:36:19,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 194 transitions, 2770 flow, removed 22 selfloop flow, removed 1 redundant places. [2021-03-26 05:36:19,023 INFO L241 Difference]: Finished difference. Result has 64 places, 184 transitions, 2866 flow [2021-03-26 05:36:19,024 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=1913, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2866, PETRI_PLACES=64, PETRI_TRANSITIONS=184} [2021-03-26 05:36:19,024 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2021-03-26 05:36:19,024 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:19,024 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 184 transitions, 2866 flow [2021-03-26 05:36:19,024 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 184 transitions, 2866 flow [2021-03-26 05:36:19,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 184 transitions, 2866 flow [2021-03-26 05:36:19,092 INFO L129 PetriNetUnfolder]: 318/712 cut-off events. [2021-03-26 05:36:19,092 INFO L130 PetriNetUnfolder]: For 4173/4276 co-relation queries the response was YES. [2021-03-26 05:36:19,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4646 conditions, 712 events. 318/712 cut-off events. For 4173/4276 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4505 event pairs, 8 based on Foata normal form. 37/748 useless extension candidates. Maximal degree in co-relation 4551. Up to 385 conditions per place. [2021-03-26 05:36:19,100 INFO L142 LiptonReduction]: Number of co-enabled transitions 326 [2021-03-26 05:36:19,159 INFO L154 LiptonReduction]: Checked pairs total: 26 [2021-03-26 05:36:19,159 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:36:19,159 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-26 05:36:19,160 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 184 transitions, 2872 flow [2021-03-26 05:36:19,160 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 05:36:19,160 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:19,161 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 05:36:19,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 05:36:19,161 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:19,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:19,161 INFO L82 PathProgramCache]: Analyzing trace with hash 886322149, now seen corresponding path program 2 times [2021-03-26 05:36:19,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:19,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738740525] [2021-03-26 05:36:19,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:19,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:19,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:36:19,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738740525] [2021-03-26 05:36:19,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:19,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:36:19,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29860483] [2021-03-26 05:36:19,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:36:19,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:19,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:36:19,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:36:19,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 66 [2021-03-26 05:36:19,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 184 transitions, 2872 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 05:36:19,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:19,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 66 [2021-03-26 05:36:19,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:19,386 INFO L129 PetriNetUnfolder]: 272/620 cut-off events. [2021-03-26 05:36:19,387 INFO L130 PetriNetUnfolder]: For 3730/3736 co-relation queries the response was YES. [2021-03-26 05:36:19,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4586 conditions, 620 events. 272/620 cut-off events. For 3730/3736 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3678 event pairs, 4 based on Foata normal form. 34/654 useless extension candidates. Maximal degree in co-relation 4509. Up to 299 conditions per place. [2021-03-26 05:36:19,393 INFO L132 encePairwiseOnDemand]: 47/66 looper letters, 73 selfloop transitions, 107 changer transitions 0/189 dead transitions. [2021-03-26 05:36:19,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 189 transitions, 3233 flow [2021-03-26 05:36:19,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 05:36:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 05:36:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-26 05:36:19,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.51010101010101 [2021-03-26 05:36:19,394 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-26 05:36:19,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-26 05:36:19,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:19,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-26 05:36:19,395 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 05:36:19,396 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 05:36:19,396 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 05:36:19,397 INFO L185 Difference]: Start difference. First operand has 64 places, 184 transitions, 2872 flow. Second operand 6 states and 202 transitions. [2021-03-26 05:36:19,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 189 transitions, 3233 flow [2021-03-26 05:36:19,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 189 transitions, 3042 flow, removed 90 selfloop flow, removed 2 redundant places. [2021-03-26 05:36:19,418 INFO L241 Difference]: Finished difference. Result has 68 places, 181 transitions, 2869 flow [2021-03-26 05:36:19,418 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=2390, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2869, PETRI_PLACES=68, PETRI_TRANSITIONS=181} [2021-03-26 05:36:19,418 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 35 predicate places. [2021-03-26 05:36:19,418 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:19,418 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 181 transitions, 2869 flow [2021-03-26 05:36:19,419 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 181 transitions, 2869 flow [2021-03-26 05:36:19,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 181 transitions, 2869 flow [2021-03-26 05:36:19,472 INFO L129 PetriNetUnfolder]: 242/573 cut-off events. [2021-03-26 05:36:19,472 INFO L130 PetriNetUnfolder]: For 3766/3860 co-relation queries the response was YES. [2021-03-26 05:36:19,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3816 conditions, 573 events. 242/573 cut-off events. For 3766/3860 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3514 event pairs, 1 based on Foata normal form. 42/615 useless extension candidates. Maximal degree in co-relation 3739. Up to 255 conditions per place. [2021-03-26 05:36:19,478 INFO L142 LiptonReduction]: Number of co-enabled transitions 228 [2021-03-26 05:36:19,489 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:19,489 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:19,490 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-26 05:36:19,490 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 181 transitions, 2869 flow [2021-03-26 05:36:19,490 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 05:36:19,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:19,491 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 05:36:19,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 05:36:19,491 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:19,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:19,491 INFO L82 PathProgramCache]: Analyzing trace with hash -979308367, now seen corresponding path program 1 times [2021-03-26 05:36:19,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:19,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568004166] [2021-03-26 05:36:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:19,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:19,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:36:19,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:36:19,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:19,527 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 05:36:19,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568004166] [2021-03-26 05:36:19,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:19,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 05:36:19,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267263706] [2021-03-26 05:36:19,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 05:36:19,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:19,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 05:36:19,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 05:36:19,529 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 66 [2021-03-26 05:36:19,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 181 transitions, 2869 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 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 05:36:19,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:19,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 66 [2021-03-26 05:36:19,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:19,681 INFO L129 PetriNetUnfolder]: 279/670 cut-off events. [2021-03-26 05:36:19,681 INFO L130 PetriNetUnfolder]: For 4557/4587 co-relation queries the response was YES. [2021-03-26 05:36:19,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4930 conditions, 670 events. 279/670 cut-off events. For 4557/4587 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4253 event pairs, 19 based on Foata normal form. 15/684 useless extension candidates. Maximal degree in co-relation 4845. Up to 256 conditions per place. [2021-03-26 05:36:19,688 INFO L132 encePairwiseOnDemand]: 45/66 looper letters, 69 selfloop transitions, 130 changer transitions 3/211 dead transitions. [2021-03-26 05:36:19,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 211 transitions, 3591 flow [2021-03-26 05:36:19,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 05:36:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 05:36:19,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 172 transitions. [2021-03-26 05:36:19,689 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5212121212121212 [2021-03-26 05:36:19,689 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 172 transitions. [2021-03-26 05:36:19,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 172 transitions. [2021-03-26 05:36:19,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:19,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 172 transitions. [2021-03-26 05:36:19,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 0 states have call successors, (0), 0 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 05:36:19,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 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 05:36:19,691 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 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 05:36:19,691 INFO L185 Difference]: Start difference. First operand has 68 places, 181 transitions, 2869 flow. Second operand 5 states and 172 transitions. [2021-03-26 05:36:19,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 211 transitions, 3591 flow [2021-03-26 05:36:19,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 211 transitions, 3445 flow, removed 11 selfloop flow, removed 3 redundant places. [2021-03-26 05:36:19,712 INFO L241 Difference]: Finished difference. Result has 71 places, 200 transitions, 3458 flow [2021-03-26 05:36:19,712 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=2724, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3458, PETRI_PLACES=71, PETRI_TRANSITIONS=200} [2021-03-26 05:36:19,713 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 38 predicate places. [2021-03-26 05:36:19,713 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:19,713 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 200 transitions, 3458 flow [2021-03-26 05:36:19,713 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 200 transitions, 3458 flow [2021-03-26 05:36:19,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 200 transitions, 3458 flow [2021-03-26 05:36:19,797 INFO L129 PetriNetUnfolder]: 231/594 cut-off events. [2021-03-26 05:36:19,797 INFO L130 PetriNetUnfolder]: For 4404/4495 co-relation queries the response was YES. [2021-03-26 05:36:19,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4379 conditions, 594 events. 231/594 cut-off events. For 4404/4495 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3853 event pairs, 2 based on Foata normal form. 33/626 useless extension candidates. Maximal degree in co-relation 4296. Up to 240 conditions per place. [2021-03-26 05:36:19,805 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-26 05:36:19,865 INFO L154 LiptonReduction]: Checked pairs total: 23 [2021-03-26 05:36:19,865 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:36:19,865 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 152 [2021-03-26 05:36:19,866 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 200 transitions, 3464 flow [2021-03-26 05:36:19,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 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 05:36:19,866 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:19,866 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 05:36:19,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 05:36:19,866 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:19,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:19,867 INFO L82 PathProgramCache]: Analyzing trace with hash -2034292303, now seen corresponding path program 2 times [2021-03-26 05:36:19,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:19,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339171469] [2021-03-26 05:36:19,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:19,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:19,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:36:19,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:19,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:19,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:19,911 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 05:36:19,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339171469] [2021-03-26 05:36:19,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:19,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:36:19,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941792709] [2021-03-26 05:36:19,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:36:19,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:19,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:36:19,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:36:19,913 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 67 [2021-03-26 05:36:19,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 200 transitions, 3464 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 05:36:19,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:19,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 67 [2021-03-26 05:36:19,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:20,139 INFO L129 PetriNetUnfolder]: 266/656 cut-off events. [2021-03-26 05:36:20,139 INFO L130 PetriNetUnfolder]: For 6101/6121 co-relation queries the response was YES. [2021-03-26 05:36:20,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5383 conditions, 656 events. 266/656 cut-off events. For 6101/6121 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4189 event pairs, 10 based on Foata normal form. 18/673 useless extension candidates. Maximal degree in co-relation 5296. Up to 229 conditions per place. [2021-03-26 05:36:20,146 INFO L132 encePairwiseOnDemand]: 46/67 looper letters, 73 selfloop transitions, 142 changer transitions 0/224 dead transitions. [2021-03-26 05:36:20,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 224 transitions, 4181 flow [2021-03-26 05:36:20,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 05:36:20,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 05:36:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2021-03-26 05:36:20,148 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5149253731343284 [2021-03-26 05:36:20,148 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 207 transitions. [2021-03-26 05:36:20,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 207 transitions. [2021-03-26 05:36:20,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:20,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 207 transitions. [2021-03-26 05:36:20,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.5) internal successors, (207), 6 states have internal predecessors, (207), 0 states have call successors, (0), 0 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 05:36:20,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 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 05:36:20,150 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 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 05:36:20,150 INFO L185 Difference]: Start difference. First operand has 71 places, 200 transitions, 3464 flow. Second operand 6 states and 207 transitions. [2021-03-26 05:36:20,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 224 transitions, 4181 flow [2021-03-26 05:36:20,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 224 transitions, 4149 flow, removed 14 selfloop flow, removed 1 redundant places. [2021-03-26 05:36:20,174 INFO L241 Difference]: Finished difference. Result has 76 places, 208 transitions, 3924 flow [2021-03-26 05:36:20,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3924, PETRI_PLACES=76, PETRI_TRANSITIONS=208} [2021-03-26 05:36:20,174 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 43 predicate places. [2021-03-26 05:36:20,174 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:20,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 208 transitions, 3924 flow [2021-03-26 05:36:20,175 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 208 transitions, 3924 flow [2021-03-26 05:36:20,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 208 transitions, 3924 flow [2021-03-26 05:36:20,237 INFO L129 PetriNetUnfolder]: 224/584 cut-off events. [2021-03-26 05:36:20,237 INFO L130 PetriNetUnfolder]: For 4929/4980 co-relation queries the response was YES. [2021-03-26 05:36:20,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4775 conditions, 584 events. 224/584 cut-off events. For 4929/4980 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3868 event pairs, 3 based on Foata normal form. 31/615 useless extension candidates. Maximal degree in co-relation 4690. Up to 231 conditions per place. [2021-03-26 05:36:20,244 INFO L142 LiptonReduction]: Number of co-enabled transitions 244 [2021-03-26 05:36:20,260 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:20,260 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:20,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-03-26 05:36:20,261 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 208 transitions, 3924 flow [2021-03-26 05:36:20,261 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 05:36:20,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:20,261 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 05:36:20,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 05:36:20,261 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:20,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:20,262 INFO L82 PathProgramCache]: Analyzing trace with hash -434283151, now seen corresponding path program 3 times [2021-03-26 05:36:20,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:20,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801632359] [2021-03-26 05:36:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:20,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:20,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:20,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:36:20,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:20,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:20,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:20,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:20,301 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 05:36:20,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801632359] [2021-03-26 05:36:20,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:20,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:36:20,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005443165] [2021-03-26 05:36:20,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:36:20,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:20,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:36:20,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:36:20,303 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 67 [2021-03-26 05:36:20,303 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 208 transitions, 3924 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 05:36:20,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:20,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 67 [2021-03-26 05:36:20,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:20,482 INFO L129 PetriNetUnfolder]: 260/649 cut-off events. [2021-03-26 05:36:20,483 INFO L130 PetriNetUnfolder]: For 5858/5878 co-relation queries the response was YES. [2021-03-26 05:36:20,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5776 conditions, 649 events. 260/649 cut-off events. For 5858/5878 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4186 event pairs, 3 based on Foata normal form. 10/658 useless extension candidates. Maximal degree in co-relation 5688. Up to 241 conditions per place. [2021-03-26 05:36:20,490 INFO L132 encePairwiseOnDemand]: 45/67 looper letters, 25 selfloop transitions, 176 changer transitions 1/211 dead transitions. [2021-03-26 05:36:20,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 211 transitions, 4343 flow [2021-03-26 05:36:20,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 05:36:20,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 05:36:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 204 transitions. [2021-03-26 05:36:20,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5074626865671642 [2021-03-26 05:36:20,492 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 204 transitions. [2021-03-26 05:36:20,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 204 transitions. [2021-03-26 05:36:20,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:20,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 204 transitions. [2021-03-26 05:36:20,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 0 states have call successors, (0), 0 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 05:36:20,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 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 05:36:20,493 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 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 05:36:20,493 INFO L185 Difference]: Start difference. First operand has 76 places, 208 transitions, 3924 flow. Second operand 6 states and 204 transitions. [2021-03-26 05:36:20,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 211 transitions, 4343 flow [2021-03-26 05:36:20,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 211 transitions, 4073 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 05:36:20,523 INFO L241 Difference]: Finished difference. Result has 77 places, 206 transitions, 3973 flow [2021-03-26 05:36:20,523 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=3621, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3973, PETRI_PLACES=77, PETRI_TRANSITIONS=206} [2021-03-26 05:36:20,523 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 44 predicate places. [2021-03-26 05:36:20,523 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:20,523 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 206 transitions, 3973 flow [2021-03-26 05:36:20,524 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 206 transitions, 3973 flow [2021-03-26 05:36:20,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 206 transitions, 3973 flow [2021-03-26 05:36:20,585 INFO L129 PetriNetUnfolder]: 218/575 cut-off events. [2021-03-26 05:36:20,585 INFO L130 PetriNetUnfolder]: For 5711/5817 co-relation queries the response was YES. [2021-03-26 05:36:20,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4791 conditions, 575 events. 218/575 cut-off events. For 5711/5817 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 3803 event pairs, 3 based on Foata normal form. 35/609 useless extension candidates. Maximal degree in co-relation 4706. Up to 228 conditions per place. [2021-03-26 05:36:20,592 INFO L142 LiptonReduction]: Number of co-enabled transitions 244 [2021-03-26 05:36:20,608 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:20,608 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:20,608 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85 [2021-03-26 05:36:20,610 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 206 transitions, 3973 flow [2021-03-26 05:36:20,610 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 05:36:20,610 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:20,611 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 05:36:20,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 05:36:20,611 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:20,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:20,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1238835023, now seen corresponding path program 1 times [2021-03-26 05:36:20,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:20,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831679342] [2021-03-26 05:36:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:20,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:20,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:20,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:20,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:20,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:36:20,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:20,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:20,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:20,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:20,658 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 05:36:20,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831679342] [2021-03-26 05:36:20,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:20,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:36:20,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44951742] [2021-03-26 05:36:20,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:36:20,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:20,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:36:20,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:36:20,659 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 67 [2021-03-26 05:36:20,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 206 transitions, 3973 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 05:36:20,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:20,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 67 [2021-03-26 05:36:20,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:20,905 INFO L129 PetriNetUnfolder]: 236/629 cut-off events. [2021-03-26 05:36:20,906 INFO L130 PetriNetUnfolder]: For 6502/6524 co-relation queries the response was YES. [2021-03-26 05:36:20,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5677 conditions, 629 events. 236/629 cut-off events. For 6502/6524 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4171 event pairs, 1 based on Foata normal form. 41/669 useless extension candidates. Maximal degree in co-relation 5590. Up to 225 conditions per place. [2021-03-26 05:36:20,918 INFO L132 encePairwiseOnDemand]: 46/67 looper letters, 30 selfloop transitions, 179 changer transitions 12/230 dead transitions. [2021-03-26 05:36:20,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 230 transitions, 4787 flow [2021-03-26 05:36:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:36:20,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:36:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 239 transitions. [2021-03-26 05:36:20,920 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.509594882729211 [2021-03-26 05:36:20,920 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 239 transitions. [2021-03-26 05:36:20,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 239 transitions. [2021-03-26 05:36:20,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:20,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 239 transitions. [2021-03-26 05:36:20,922 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 05:36:20,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 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 05:36:20,923 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 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 05:36:20,923 INFO L185 Difference]: Start difference. First operand has 77 places, 206 transitions, 3973 flow. Second operand 7 states and 239 transitions. [2021-03-26 05:36:20,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 230 transitions, 4787 flow [2021-03-26 05:36:20,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 230 transitions, 4421 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-26 05:36:20,946 INFO L241 Difference]: Finished difference. Result has 79 places, 206 transitions, 4080 flow [2021-03-26 05:36:20,946 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=3438, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4080, PETRI_PLACES=79, PETRI_TRANSITIONS=206} [2021-03-26 05:36:20,947 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 46 predicate places. [2021-03-26 05:36:20,947 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:20,947 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 206 transitions, 4080 flow [2021-03-26 05:36:20,947 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 206 transitions, 4080 flow [2021-03-26 05:36:20,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 206 transitions, 4080 flow [2021-03-26 05:36:21,003 INFO L129 PetriNetUnfolder]: 183/540 cut-off events. [2021-03-26 05:36:21,003 INFO L130 PetriNetUnfolder]: For 5236/5272 co-relation queries the response was YES. [2021-03-26 05:36:21,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4619 conditions, 540 events. 183/540 cut-off events. For 5236/5272 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3721 event pairs, 2 based on Foata normal form. 24/564 useless extension candidates. Maximal degree in co-relation 4537. Up to 192 conditions per place. [2021-03-26 05:36:21,011 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-26 05:36:21,025 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:21,025 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:21,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-03-26 05:36:21,026 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 206 transitions, 4080 flow [2021-03-26 05:36:21,026 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 05:36:21,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:21,026 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 05:36:21,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 05:36:21,026 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:21,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:21,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1634979263, now seen corresponding path program 1 times [2021-03-26 05:36:21,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:21,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448226804] [2021-03-26 05:36:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:21,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:21,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:36:21,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:21,062 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 05:36:21,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448226804] [2021-03-26 05:36:21,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:21,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:36:21,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018339056] [2021-03-26 05:36:21,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:36:21,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:21,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:36:21,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:36:21,064 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 67 [2021-03-26 05:36:21,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 206 transitions, 4080 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 05:36:21,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:21,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 67 [2021-03-26 05:36:21,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:21,286 INFO L129 PetriNetUnfolder]: 206/597 cut-off events. [2021-03-26 05:36:21,286 INFO L130 PetriNetUnfolder]: For 5972/5986 co-relation queries the response was YES. [2021-03-26 05:36:21,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5458 conditions, 597 events. 206/597 cut-off events. For 5972/5986 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4130 event pairs, 2 based on Foata normal form. 25/621 useless extension candidates. Maximal degree in co-relation 5373. Up to 207 conditions per place. [2021-03-26 05:36:21,294 INFO L132 encePairwiseOnDemand]: 46/67 looper letters, 30 selfloop transitions, 170 changer transitions 15/224 dead transitions. [2021-03-26 05:36:21,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 224 transitions, 4763 flow [2021-03-26 05:36:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:36:21,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:36:21,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 241 transitions. [2021-03-26 05:36:21,296 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5138592750533049 [2021-03-26 05:36:21,296 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 241 transitions. [2021-03-26 05:36:21,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 241 transitions. [2021-03-26 05:36:21,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:21,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 241 transitions. [2021-03-26 05:36:21,297 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 05:36:21,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 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 05:36:21,298 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 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 05:36:21,298 INFO L185 Difference]: Start difference. First operand has 79 places, 206 transitions, 4080 flow. Second operand 7 states and 241 transitions. [2021-03-26 05:36:21,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 224 transitions, 4763 flow [2021-03-26 05:36:21,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 224 transitions, 4486 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-26 05:36:21,328 INFO L241 Difference]: Finished difference. Result has 80 places, 197 transitions, 3995 flow [2021-03-26 05:36:21,328 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=3706, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3995, PETRI_PLACES=80, PETRI_TRANSITIONS=197} [2021-03-26 05:36:21,328 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 47 predicate places. [2021-03-26 05:36:21,328 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:21,328 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 197 transitions, 3995 flow [2021-03-26 05:36:21,328 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 197 transitions, 3995 flow [2021-03-26 05:36:21,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 197 transitions, 3995 flow [2021-03-26 05:36:21,381 INFO L129 PetriNetUnfolder]: 148/477 cut-off events. [2021-03-26 05:36:21,381 INFO L130 PetriNetUnfolder]: For 4958/5054 co-relation queries the response was YES. [2021-03-26 05:36:21,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4012 conditions, 477 events. 148/477 cut-off events. For 4958/5054 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3289 event pairs, 1 based on Foata normal form. 25/501 useless extension candidates. Maximal degree in co-relation 3932. Up to 161 conditions per place. [2021-03-26 05:36:21,387 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 05:36:21,438 INFO L154 LiptonReduction]: Checked pairs total: 20 [2021-03-26 05:36:21,439 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:36:21,439 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-03-26 05:36:21,440 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 197 transitions, 4001 flow [2021-03-26 05:36:21,440 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 05:36:21,440 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:21,441 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 05:36:21,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 05:36:21,441 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:21,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:21,441 INFO L82 PathProgramCache]: Analyzing trace with hash 145591667, now seen corresponding path program 1 times [2021-03-26 05:36:21,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:21,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040689928] [2021-03-26 05:36:21,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:21,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:21,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:36:21,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:21,491 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 05:36:21,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040689928] [2021-03-26 05:36:21,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:21,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:36:21,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59756157] [2021-03-26 05:36:21,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:36:21,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:21,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:36:21,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:36:21,492 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:21,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 197 transitions, 4001 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 05:36:21,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:21,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:21,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:21,701 INFO L129 PetriNetUnfolder]: 156/469 cut-off events. [2021-03-26 05:36:21,701 INFO L130 PetriNetUnfolder]: For 5770/5784 co-relation queries the response was YES. [2021-03-26 05:36:21,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4419 conditions, 469 events. 156/469 cut-off events. For 5770/5784 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 3214 event pairs, 1 based on Foata normal form. 25/493 useless extension candidates. Maximal degree in co-relation 4362. Up to 175 conditions per place. [2021-03-26 05:36:21,705 INFO L132 encePairwiseOnDemand]: 46/68 looper letters, 27 selfloop transitions, 129 changer transitions 26/191 dead transitions. [2021-03-26 05:36:21,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 191 transitions, 4126 flow [2021-03-26 05:36:21,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:36:21,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:36:21,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 238 transitions. [2021-03-26 05:36:21,706 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-26 05:36:21,706 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 238 transitions. [2021-03-26 05:36:21,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 238 transitions. [2021-03-26 05:36:21,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:21,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 238 transitions. [2021-03-26 05:36:21,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 0 states have call successors, (0), 0 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 05:36:21,708 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 05:36:21,708 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 05:36:21,708 INFO L185 Difference]: Start difference. First operand has 80 places, 197 transitions, 4001 flow. Second operand 7 states and 238 transitions. [2021-03-26 05:36:21,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 191 transitions, 4126 flow [2021-03-26 05:36:21,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 191 transitions, 3829 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-26 05:36:21,731 INFO L241 Difference]: Finished difference. Result has 82 places, 155 transitions, 3228 flow [2021-03-26 05:36:21,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=3258, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3228, PETRI_PLACES=82, PETRI_TRANSITIONS=155} [2021-03-26 05:36:21,732 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 49 predicate places. [2021-03-26 05:36:21,732 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:21,732 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 155 transitions, 3228 flow [2021-03-26 05:36:21,732 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 155 transitions, 3228 flow [2021-03-26 05:36:21,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 155 transitions, 3228 flow [2021-03-26 05:36:21,764 INFO L129 PetriNetUnfolder]: 110/325 cut-off events. [2021-03-26 05:36:21,764 INFO L130 PetriNetUnfolder]: For 4737/4773 co-relation queries the response was YES. [2021-03-26 05:36:21,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2868 conditions, 325 events. 110/325 cut-off events. For 4737/4773 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1935 event pairs, 0 based on Foata normal form. 9/333 useless extension candidates. Maximal degree in co-relation 2812. Up to 126 conditions per place. [2021-03-26 05:36:21,767 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 05:36:21,774 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:21,774 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:21,774 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-26 05:36:21,776 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 155 transitions, 3228 flow [2021-03-26 05:36:21,777 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 05:36:21,777 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:21,777 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 05:36:21,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 05:36:21,777 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:21,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:21,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1956241552, now seen corresponding path program 1 times [2021-03-26 05:36:21,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:21,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603868301] [2021-03-26 05:36:21,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:21,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:21,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:21,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:21,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:21,809 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 05:36:21,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603868301] [2021-03-26 05:36:21,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:21,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:36:21,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877143323] [2021-03-26 05:36:21,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:36:21,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:21,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:36:21,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:36:21,813 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:21,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 155 transitions, 3228 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 05:36:21,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:21,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:21,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:21,958 INFO L129 PetriNetUnfolder]: 116/339 cut-off events. [2021-03-26 05:36:21,958 INFO L130 PetriNetUnfolder]: For 4898/4912 co-relation queries the response was YES. [2021-03-26 05:36:21,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3276 conditions, 339 events. 116/339 cut-off events. For 4898/4912 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1975 event pairs, 0 based on Foata normal form. 5/343 useless extension candidates. Maximal degree in co-relation 3216. Up to 132 conditions per place. [2021-03-26 05:36:21,961 INFO L132 encePairwiseOnDemand]: 48/68 looper letters, 32 selfloop transitions, 116 changer transitions 0/157 dead transitions. [2021-03-26 05:36:21,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 157 transitions, 3534 flow [2021-03-26 05:36:21,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 05:36:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 05:36:21,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 203 transitions. [2021-03-26 05:36:21,962 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49754901960784315 [2021-03-26 05:36:21,962 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 203 transitions. [2021-03-26 05:36:21,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 203 transitions. [2021-03-26 05:36:21,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:21,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 203 transitions. [2021-03-26 05:36:21,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.833333333333336) internal successors, (203), 6 states have internal predecessors, (203), 0 states have call successors, (0), 0 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 05:36:21,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 05:36:21,964 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 05:36:21,964 INFO L185 Difference]: Start difference. First operand has 82 places, 155 transitions, 3228 flow. Second operand 6 states and 203 transitions. [2021-03-26 05:36:21,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 157 transitions, 3534 flow [2021-03-26 05:36:21,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 157 transitions, 3356 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-26 05:36:21,984 INFO L241 Difference]: Finished difference. Result has 82 places, 154 transitions, 3268 flow [2021-03-26 05:36:21,985 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=3036, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3268, PETRI_PLACES=82, PETRI_TRANSITIONS=154} [2021-03-26 05:36:21,985 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 49 predicate places. [2021-03-26 05:36:21,985 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:21,985 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 154 transitions, 3268 flow [2021-03-26 05:36:21,985 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 154 transitions, 3268 flow [2021-03-26 05:36:21,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 154 transitions, 3268 flow [2021-03-26 05:36:22,015 INFO L129 PetriNetUnfolder]: 107/318 cut-off events. [2021-03-26 05:36:22,016 INFO L130 PetriNetUnfolder]: For 4832/4837 co-relation queries the response was YES. [2021-03-26 05:36:22,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2818 conditions, 318 events. 107/318 cut-off events. For 4832/4837 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1900 event pairs, 0 based on Foata normal form. 5/323 useless extension candidates. Maximal degree in co-relation 2764. Up to 126 conditions per place. [2021-03-26 05:36:22,018 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 05:36:22,024 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:22,024 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:22,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-26 05:36:22,025 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 154 transitions, 3268 flow [2021-03-26 05:36:22,025 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 05:36:22,025 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:22,026 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 05:36:22,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 05:36:22,026 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:22,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:22,026 INFO L82 PathProgramCache]: Analyzing trace with hash -2049591450, now seen corresponding path program 2 times [2021-03-26 05:36:22,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:22,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612022064] [2021-03-26 05:36:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:22,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:22,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:36:22,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:22,066 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 05:36:22,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612022064] [2021-03-26 05:36:22,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:22,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:36:22,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140102299] [2021-03-26 05:36:22,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:36:22,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:22,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:36:22,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:36:22,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:22,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 154 transitions, 3268 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 05:36:22,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:22,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:22,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:22,284 INFO L129 PetriNetUnfolder]: 122/356 cut-off events. [2021-03-26 05:36:22,284 INFO L130 PetriNetUnfolder]: For 5166/5180 co-relation queries the response was YES. [2021-03-26 05:36:22,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3565 conditions, 356 events. 122/356 cut-off events. For 5166/5180 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2146 event pairs, 0 based on Foata normal form. 23/378 useless extension candidates. Maximal degree in co-relation 3509. Up to 153 conditions per place. [2021-03-26 05:36:22,287 INFO L132 encePairwiseOnDemand]: 48/68 looper letters, 25 selfloop transitions, 111 changer transitions 26/171 dead transitions. [2021-03-26 05:36:22,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 171 transitions, 3962 flow [2021-03-26 05:36:22,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:36:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:36:22,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 299 transitions. [2021-03-26 05:36:22,288 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48856209150326796 [2021-03-26 05:36:22,288 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 299 transitions. [2021-03-26 05:36:22,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 299 transitions. [2021-03-26 05:36:22,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:22,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 299 transitions. [2021-03-26 05:36:22,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.22222222222222) internal successors, (299), 9 states have internal predecessors, (299), 0 states have call successors, (0), 0 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 05:36:22,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:22,290 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:22,290 INFO L185 Difference]: Start difference. First operand has 82 places, 154 transitions, 3268 flow. Second operand 9 states and 299 transitions. [2021-03-26 05:36:22,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 171 transitions, 3962 flow [2021-03-26 05:36:22,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 171 transitions, 3700 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-26 05:36:22,310 INFO L241 Difference]: Finished difference. Result has 87 places, 137 transitions, 3040 flow [2021-03-26 05:36:22,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2985, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3040, PETRI_PLACES=87, PETRI_TRANSITIONS=137} [2021-03-26 05:36:22,310 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 54 predicate places. [2021-03-26 05:36:22,310 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:22,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 137 transitions, 3040 flow [2021-03-26 05:36:22,311 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 137 transitions, 3040 flow [2021-03-26 05:36:22,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 137 transitions, 3040 flow [2021-03-26 05:36:22,340 INFO L129 PetriNetUnfolder]: 104/292 cut-off events. [2021-03-26 05:36:22,340 INFO L130 PetriNetUnfolder]: For 4977/4991 co-relation queries the response was YES. [2021-03-26 05:36:22,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2715 conditions, 292 events. 104/292 cut-off events. For 4977/4991 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1622 event pairs, 0 based on Foata normal form. 8/300 useless extension candidates. Maximal degree in co-relation 2657. Up to 124 conditions per place. [2021-03-26 05:36:22,342 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 05:36:22,348 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:22,348 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:22,348 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-26 05:36:22,349 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 137 transitions, 3040 flow [2021-03-26 05:36:22,349 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 05:36:22,349 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:22,349 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 05:36:22,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 05:36:22,349 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:22,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:22,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1276279449, now seen corresponding path program 1 times [2021-03-26 05:36:22,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:22,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048001917] [2021-03-26 05:36:22,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:22,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:22,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:22,382 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 05:36:22,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048001917] [2021-03-26 05:36:22,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:22,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:36:22,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483095355] [2021-03-26 05:36:22,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:36:22,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:22,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:36:22,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:36:22,384 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:22,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 137 transitions, 3040 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 05:36:22,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:22,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:22,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:22,567 INFO L129 PetriNetUnfolder]: 102/308 cut-off events. [2021-03-26 05:36:22,568 INFO L130 PetriNetUnfolder]: For 5218/5232 co-relation queries the response was YES. [2021-03-26 05:36:22,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 308 events. 102/308 cut-off events. For 5218/5232 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1738 event pairs, 3 based on Foata normal form. 22/329 useless extension candidates. Maximal degree in co-relation 3079. Up to 128 conditions per place. [2021-03-26 05:36:22,570 INFO L132 encePairwiseOnDemand]: 52/68 looper letters, 46 selfloop transitions, 93 changer transitions 9/157 dead transitions. [2021-03-26 05:36:22,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 157 transitions, 3664 flow [2021-03-26 05:36:22,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 05:36:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 05:36:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2021-03-26 05:36:22,571 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47610294117647056 [2021-03-26 05:36:22,571 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 259 transitions. [2021-03-26 05:36:22,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 259 transitions. [2021-03-26 05:36:22,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:22,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 259 transitions. [2021-03-26 05:36:22,572 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 05:36:22,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:22,573 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:22,573 INFO L185 Difference]: Start difference. First operand has 87 places, 137 transitions, 3040 flow. Second operand 8 states and 259 transitions. [2021-03-26 05:36:22,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 157 transitions, 3664 flow [2021-03-26 05:36:22,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 157 transitions, 3212 flow, removed 22 selfloop flow, removed 11 redundant places. [2021-03-26 05:36:22,591 INFO L241 Difference]: Finished difference. Result has 83 places, 135 transitions, 2722 flow [2021-03-26 05:36:22,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2536, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2722, PETRI_PLACES=83, PETRI_TRANSITIONS=135} [2021-03-26 05:36:22,591 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 50 predicate places. [2021-03-26 05:36:22,591 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:22,591 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 135 transitions, 2722 flow [2021-03-26 05:36:22,591 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 135 transitions, 2722 flow [2021-03-26 05:36:22,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 135 transitions, 2722 flow [2021-03-26 05:36:22,618 INFO L129 PetriNetUnfolder]: 92/275 cut-off events. [2021-03-26 05:36:22,618 INFO L130 PetriNetUnfolder]: For 4021/4032 co-relation queries the response was YES. [2021-03-26 05:36:22,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2291 conditions, 275 events. 92/275 cut-off events. For 4021/4032 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1522 event pairs, 0 based on Foata normal form. 6/281 useless extension candidates. Maximal degree in co-relation 2236. Up to 116 conditions per place. [2021-03-26 05:36:22,620 INFO L142 LiptonReduction]: Number of co-enabled transitions 92 [2021-03-26 05:36:22,625 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:22,625 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:22,625 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 05:36:22,626 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 135 transitions, 2722 flow [2021-03-26 05:36:22,626 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 05:36:22,626 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:22,626 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 05:36:22,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 05:36:22,626 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:22,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:22,626 INFO L82 PathProgramCache]: Analyzing trace with hash -467187883, now seen corresponding path program 2 times [2021-03-26 05:36:22,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:22,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575220190] [2021-03-26 05:36:22,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:22,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:22,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:22,666 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 05:36:22,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575220190] [2021-03-26 05:36:22,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:22,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:36:22,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137435166] [2021-03-26 05:36:22,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:36:22,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:22,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:36:22,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:36:22,667 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:22,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 135 transitions, 2722 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 05:36:22,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:22,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:22,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:22,862 INFO L129 PetriNetUnfolder]: 99/292 cut-off events. [2021-03-26 05:36:22,862 INFO L130 PetriNetUnfolder]: For 4223/4237 co-relation queries the response was YES. [2021-03-26 05:36:22,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2697 conditions, 292 events. 99/292 cut-off events. For 4223/4237 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1596 event pairs, 0 based on Foata normal form. 5/296 useless extension candidates. Maximal degree in co-relation 2640. Up to 123 conditions per place. [2021-03-26 05:36:22,864 INFO L132 encePairwiseOnDemand]: 49/68 looper letters, 16 selfloop transitions, 105 changer transitions 17/147 dead transitions. [2021-03-26 05:36:22,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 147 transitions, 3174 flow [2021-03-26 05:36:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:36:22,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:36:22,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 293 transitions. [2021-03-26 05:36:22,866 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47875816993464054 [2021-03-26 05:36:22,866 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 293 transitions. [2021-03-26 05:36:22,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 293 transitions. [2021-03-26 05:36:22,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:22,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 293 transitions. [2021-03-26 05:36:22,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 9 states have internal predecessors, (293), 0 states have call successors, (0), 0 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 05:36:22,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:22,870 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:22,870 INFO L185 Difference]: Start difference. First operand has 83 places, 135 transitions, 2722 flow. Second operand 9 states and 293 transitions. [2021-03-26 05:36:22,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 147 transitions, 3174 flow [2021-03-26 05:36:22,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 147 transitions, 3057 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 05:36:22,886 INFO L241 Difference]: Finished difference. Result has 89 places, 125 transitions, 2569 flow [2021-03-26 05:36:22,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2611, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2569, PETRI_PLACES=89, PETRI_TRANSITIONS=125} [2021-03-26 05:36:22,886 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 56 predicate places. [2021-03-26 05:36:22,886 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:22,886 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 125 transitions, 2569 flow [2021-03-26 05:36:22,886 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 125 transitions, 2569 flow [2021-03-26 05:36:22,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 125 transitions, 2569 flow [2021-03-26 05:36:22,907 INFO L129 PetriNetUnfolder]: 76/241 cut-off events. [2021-03-26 05:36:22,908 INFO L130 PetriNetUnfolder]: For 3978/4002 co-relation queries the response was YES. [2021-03-26 05:36:22,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2112 conditions, 241 events. 76/241 cut-off events. For 3978/4002 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1290 event pairs, 0 based on Foata normal form. 5/245 useless extension candidates. Maximal degree in co-relation 2060. Up to 103 conditions per place. [2021-03-26 05:36:22,909 INFO L142 LiptonReduction]: Number of co-enabled transitions 92 [2021-03-26 05:36:22,912 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:22,913 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:22,913 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-26 05:36:22,913 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 125 transitions, 2569 flow [2021-03-26 05:36:22,913 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 05:36:22,913 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:22,914 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 05:36:22,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 05:36:22,914 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:22,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:22,914 INFO L82 PathProgramCache]: Analyzing trace with hash 782088215, now seen corresponding path program 3 times [2021-03-26 05:36:22,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:22,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992170965] [2021-03-26 05:36:22,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:22,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:22,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:22,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:22,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:36:22,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992170965] [2021-03-26 05:36:22,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:22,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:36:22,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716820801] [2021-03-26 05:36:22,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:36:22,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:22,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:36:22,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:36:22,954 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:22,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 125 transitions, 2569 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 05:36:22,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:22,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:22,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:23,113 INFO L129 PetriNetUnfolder]: 80/256 cut-off events. [2021-03-26 05:36:23,114 INFO L130 PetriNetUnfolder]: For 4243/4257 co-relation queries the response was YES. [2021-03-26 05:36:23,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2446 conditions, 256 events. 80/256 cut-off events. For 4243/4257 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1374 event pairs, 0 based on Foata normal form. 5/260 useless extension candidates. Maximal degree in co-relation 2388. Up to 104 conditions per place. [2021-03-26 05:36:23,115 INFO L132 encePairwiseOnDemand]: 50/68 looper letters, 17 selfloop transitions, 107 changer transitions 2/135 dead transitions. [2021-03-26 05:36:23,115 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 135 transitions, 2956 flow [2021-03-26 05:36:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 05:36:23,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 05:36:23,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-26 05:36:23,119 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48161764705882354 [2021-03-26 05:36:23,119 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-26 05:36:23,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-26 05:36:23,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:23,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-26 05:36:23,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 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 05:36:23,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:23,123 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:23,123 INFO L185 Difference]: Start difference. First operand has 89 places, 125 transitions, 2569 flow. Second operand 8 states and 262 transitions. [2021-03-26 05:36:23,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 135 transitions, 2956 flow [2021-03-26 05:36:23,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 135 transitions, 2693 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-03-26 05:36:23,139 INFO L241 Difference]: Finished difference. Result has 88 places, 127 transitions, 2564 flow [2021-03-26 05:36:23,139 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2293, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2564, PETRI_PLACES=88, PETRI_TRANSITIONS=127} [2021-03-26 05:36:23,139 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 55 predicate places. [2021-03-26 05:36:23,139 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:23,139 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 127 transitions, 2564 flow [2021-03-26 05:36:23,139 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 127 transitions, 2564 flow [2021-03-26 05:36:23,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 127 transitions, 2564 flow [2021-03-26 05:36:23,161 INFO L129 PetriNetUnfolder]: 73/236 cut-off events. [2021-03-26 05:36:23,161 INFO L130 PetriNetUnfolder]: For 3826/3836 co-relation queries the response was YES. [2021-03-26 05:36:23,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2038 conditions, 236 events. 73/236 cut-off events. For 3826/3836 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1297 event pairs, 0 based on Foata normal form. 6/242 useless extension candidates. Maximal degree in co-relation 1989. Up to 100 conditions per place. [2021-03-26 05:36:23,163 INFO L142 LiptonReduction]: Number of co-enabled transitions 92 [2021-03-26 05:36:23,167 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:23,167 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:23,167 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-26 05:36:23,168 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 127 transitions, 2564 flow [2021-03-26 05:36:23,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:23,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:23,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:36:23,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 05:36:23,168 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:23,169 INFO L82 PathProgramCache]: Analyzing trace with hash 236355309, now seen corresponding path program 4 times [2021-03-26 05:36:23,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:23,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041699106] [2021-03-26 05:36:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:23,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:23,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:23,228 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 05:36:23,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041699106] [2021-03-26 05:36:23,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:23,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:36:23,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452523625] [2021-03-26 05:36:23,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:36:23,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:23,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:36:23,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:36:23,229 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:23,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 127 transitions, 2564 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 05:36:23,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:23,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:23,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:23,436 INFO L129 PetriNetUnfolder]: 77/253 cut-off events. [2021-03-26 05:36:23,436 INFO L130 PetriNetUnfolder]: For 3818/3832 co-relation queries the response was YES. [2021-03-26 05:36:23,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2360 conditions, 253 events. 77/253 cut-off events. For 3818/3832 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1383 event pairs, 0 based on Foata normal form. 5/257 useless extension candidates. Maximal degree in co-relation 2303. Up to 101 conditions per place. [2021-03-26 05:36:23,440 INFO L132 encePairwiseOnDemand]: 50/68 looper letters, 21 selfloop transitions, 99 changer transitions 8/137 dead transitions. [2021-03-26 05:36:23,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 137 transitions, 2933 flow [2021-03-26 05:36:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:36:23,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:36:23,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 295 transitions. [2021-03-26 05:36:23,441 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4820261437908497 [2021-03-26 05:36:23,441 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 295 transitions. [2021-03-26 05:36:23,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 295 transitions. [2021-03-26 05:36:23,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:23,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 295 transitions. [2021-03-26 05:36:23,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.77777777777778) internal successors, (295), 9 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:23,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:23,443 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:23,443 INFO L185 Difference]: Start difference. First operand has 88 places, 127 transitions, 2564 flow. Second operand 9 states and 295 transitions. [2021-03-26 05:36:23,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 137 transitions, 2933 flow [2021-03-26 05:36:23,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 137 transitions, 2874 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-26 05:36:23,459 INFO L241 Difference]: Finished difference. Result has 93 places, 119 transitions, 2489 flow [2021-03-26 05:36:23,460 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2468, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2489, PETRI_PLACES=93, PETRI_TRANSITIONS=119} [2021-03-26 05:36:23,460 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 60 predicate places. [2021-03-26 05:36:23,460 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:23,460 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 119 transitions, 2489 flow [2021-03-26 05:36:23,460 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 119 transitions, 2489 flow [2021-03-26 05:36:23,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 119 transitions, 2489 flow [2021-03-26 05:36:23,481 INFO L129 PetriNetUnfolder]: 65/228 cut-off events. [2021-03-26 05:36:23,481 INFO L130 PetriNetUnfolder]: For 3773/3782 co-relation queries the response was YES. [2021-03-26 05:36:23,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1981 conditions, 228 events. 65/228 cut-off events. For 3773/3782 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1269 event pairs, 0 based on Foata normal form. 5/233 useless extension candidates. Maximal degree in co-relation 1926. Up to 93 conditions per place. [2021-03-26 05:36:23,482 INFO L142 LiptonReduction]: Number of co-enabled transitions 84 [2021-03-26 05:36:23,487 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:23,487 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:23,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-26 05:36:23,488 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 119 transitions, 2489 flow [2021-03-26 05:36:23,488 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 05:36:23,488 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:23,488 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 05:36:23,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 05:36:23,489 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:23,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:23,489 INFO L82 PathProgramCache]: Analyzing trace with hash 325400014, now seen corresponding path program 1 times [2021-03-26 05:36:23,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:23,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707139007] [2021-03-26 05:36:23,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:23,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:23,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:23,538 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 05:36:23,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707139007] [2021-03-26 05:36:23,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:23,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:36:23,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576581630] [2021-03-26 05:36:23,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:36:23,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:23,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:36:23,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:36:23,539 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:23,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 119 transitions, 2489 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 05:36:23,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:23,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:23,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:23,699 INFO L129 PetriNetUnfolder]: 72/247 cut-off events. [2021-03-26 05:36:23,699 INFO L130 PetriNetUnfolder]: For 4244/4258 co-relation queries the response was YES. [2021-03-26 05:36:23,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2400 conditions, 247 events. 72/247 cut-off events. For 4244/4258 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1370 event pairs, 0 based on Foata normal form. 8/254 useless extension candidates. Maximal degree in co-relation 2346. Up to 101 conditions per place. [2021-03-26 05:36:23,700 INFO L132 encePairwiseOnDemand]: 50/68 looper letters, 18 selfloop transitions, 104 changer transitions 2/133 dead transitions. [2021-03-26 05:36:23,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 133 transitions, 2965 flow [2021-03-26 05:36:23,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:36:23,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:36:23,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 286 transitions. [2021-03-26 05:36:23,701 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4673202614379085 [2021-03-26 05:36:23,701 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 286 transitions. [2021-03-26 05:36:23,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 286 transitions. [2021-03-26 05:36:23,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:23,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 286 transitions. [2021-03-26 05:36:23,702 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 05:36:23,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:23,703 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:23,703 INFO L185 Difference]: Start difference. First operand has 93 places, 119 transitions, 2489 flow. Second operand 9 states and 286 transitions. [2021-03-26 05:36:23,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 133 transitions, 2965 flow [2021-03-26 05:36:23,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 133 transitions, 2846 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-26 05:36:23,719 INFO L241 Difference]: Finished difference. Result has 96 places, 124 transitions, 2689 flow [2021-03-26 05:36:23,719 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2378, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2689, PETRI_PLACES=96, PETRI_TRANSITIONS=124} [2021-03-26 05:36:23,720 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 63 predicate places. [2021-03-26 05:36:23,720 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:23,720 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 124 transitions, 2689 flow [2021-03-26 05:36:23,720 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 124 transitions, 2689 flow [2021-03-26 05:36:23,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 124 transitions, 2689 flow [2021-03-26 05:36:23,742 INFO L129 PetriNetUnfolder]: 65/227 cut-off events. [2021-03-26 05:36:23,742 INFO L130 PetriNetUnfolder]: For 4174/4180 co-relation queries the response was YES. [2021-03-26 05:36:23,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2087 conditions, 227 events. 65/227 cut-off events. For 4174/4180 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1290 event pairs, 0 based on Foata normal form. 6/233 useless extension candidates. Maximal degree in co-relation 2039. Up to 97 conditions per place. [2021-03-26 05:36:23,744 INFO L142 LiptonReduction]: Number of co-enabled transitions 84 [2021-03-26 05:36:23,748 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:23,748 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:23,749 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 05:36:23,749 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 124 transitions, 2689 flow [2021-03-26 05:36:23,749 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 05:36:23,749 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:23,749 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 05:36:23,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 05:36:23,750 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:23,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:23,750 INFO L82 PathProgramCache]: Analyzing trace with hash 538202376, now seen corresponding path program 2 times [2021-03-26 05:36:23,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:23,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887951333] [2021-03-26 05:36:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:23,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:23,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:23,779 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 05:36:23,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887951333] [2021-03-26 05:36:23,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:23,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:36:23,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362343847] [2021-03-26 05:36:23,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:36:23,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:23,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:36:23,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:36:23,780 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:23,781 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 124 transitions, 2689 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 05:36:23,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:23,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:23,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:23,920 INFO L129 PetriNetUnfolder]: 55/224 cut-off events. [2021-03-26 05:36:23,921 INFO L130 PetriNetUnfolder]: For 4197/4211 co-relation queries the response was YES. [2021-03-26 05:36:23,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2234 conditions, 224 events. 55/224 cut-off events. For 4197/4211 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1275 event pairs, 3 based on Foata normal form. 17/240 useless extension candidates. Maximal degree in co-relation 2180. Up to 89 conditions per place. [2021-03-26 05:36:23,922 INFO L132 encePairwiseOnDemand]: 52/68 looper letters, 42 selfloop transitions, 70 changer transitions 13/134 dead transitions. [2021-03-26 05:36:23,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 134 transitions, 3049 flow [2021-03-26 05:36:23,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 05:36:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 05:36:23,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 255 transitions. [2021-03-26 05:36:23,923 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46875 [2021-03-26 05:36:23,923 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 255 transitions. [2021-03-26 05:36:23,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 255 transitions. [2021-03-26 05:36:23,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:23,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 255 transitions. [2021-03-26 05:36:23,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.875) internal successors, (255), 8 states have internal predecessors, (255), 0 states have call successors, (0), 0 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 05:36:23,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:23,924 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:23,924 INFO L185 Difference]: Start difference. First operand has 96 places, 124 transitions, 2689 flow. Second operand 8 states and 255 transitions. [2021-03-26 05:36:23,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 134 transitions, 3049 flow [2021-03-26 05:36:23,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 134 transitions, 2923 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-26 05:36:23,940 INFO L241 Difference]: Finished difference. Result has 98 places, 110 transitions, 2354 flow [2021-03-26 05:36:23,940 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2417, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2354, PETRI_PLACES=98, PETRI_TRANSITIONS=110} [2021-03-26 05:36:23,940 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 65 predicate places. [2021-03-26 05:36:23,940 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:23,940 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 110 transitions, 2354 flow [2021-03-26 05:36:23,941 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 110 transitions, 2354 flow [2021-03-26 05:36:23,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 110 transitions, 2354 flow [2021-03-26 05:36:23,958 INFO L129 PetriNetUnfolder]: 45/191 cut-off events. [2021-03-26 05:36:23,958 INFO L130 PetriNetUnfolder]: For 3750/3758 co-relation queries the response was YES. [2021-03-26 05:36:23,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 191 events. 45/191 cut-off events. For 3750/3758 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1049 event pairs, 0 based on Foata normal form. 4/195 useless extension candidates. Maximal degree in co-relation 1629. Up to 78 conditions per place. [2021-03-26 05:36:23,959 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 05:36:23,963 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:23,963 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:23,963 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 05:36:23,964 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 110 transitions, 2354 flow [2021-03-26 05:36:23,964 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 05:36:23,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:23,964 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 05:36:23,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 05:36:23,964 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:23,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:23,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1070091187, now seen corresponding path program 3 times [2021-03-26 05:36:23,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:23,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400589840] [2021-03-26 05:36:23,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:23,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:23,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:23,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:23,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:24,007 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 05:36:24,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400589840] [2021-03-26 05:36:24,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:24,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:36:24,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217218188] [2021-03-26 05:36:24,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:36:24,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:24,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:36:24,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:36:24,009 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:24,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 110 transitions, 2354 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 05:36:24,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:24,009 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:24,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:24,227 INFO L129 PetriNetUnfolder]: 50/209 cut-off events. [2021-03-26 05:36:24,227 INFO L130 PetriNetUnfolder]: For 4114/4145 co-relation queries the response was YES. [2021-03-26 05:36:24,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 209 events. 50/209 cut-off events. For 4114/4145 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1175 event pairs, 0 based on Foata normal form. 13/221 useless extension candidates. Maximal degree in co-relation 1965. Up to 84 conditions per place. [2021-03-26 05:36:24,228 INFO L132 encePairwiseOnDemand]: 53/68 looper letters, 19 selfloop transitions, 93 changer transitions 8/129 dead transitions. [2021-03-26 05:36:24,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 129 transitions, 2879 flow [2021-03-26 05:36:24,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 05:36:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 05:36:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 369 transitions. [2021-03-26 05:36:24,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4522058823529412 [2021-03-26 05:36:24,229 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 369 transitions. [2021-03-26 05:36:24,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 369 transitions. [2021-03-26 05:36:24,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:24,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 369 transitions. [2021-03-26 05:36:24,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.75) internal successors, (369), 12 states have internal predecessors, (369), 0 states have call successors, (0), 0 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 05:36:24,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 05:36:24,231 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 05:36:24,231 INFO L185 Difference]: Start difference. First operand has 98 places, 110 transitions, 2354 flow. Second operand 12 states and 369 transitions. [2021-03-26 05:36:24,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 129 transitions, 2879 flow [2021-03-26 05:36:24,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 129 transitions, 2744 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 05:36:24,245 INFO L241 Difference]: Finished difference. Result has 103 places, 111 transitions, 2419 flow [2021-03-26 05:36:24,245 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2234, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2419, PETRI_PLACES=103, PETRI_TRANSITIONS=111} [2021-03-26 05:36:24,245 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 70 predicate places. [2021-03-26 05:36:24,245 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:24,245 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 111 transitions, 2419 flow [2021-03-26 05:36:24,245 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 111 transitions, 2419 flow [2021-03-26 05:36:24,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 111 transitions, 2419 flow [2021-03-26 05:36:24,263 INFO L129 PetriNetUnfolder]: 43/193 cut-off events. [2021-03-26 05:36:24,264 INFO L130 PetriNetUnfolder]: For 3444/3462 co-relation queries the response was YES. [2021-03-26 05:36:24,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1731 conditions, 193 events. 43/193 cut-off events. For 3444/3462 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1096 event pairs, 0 based on Foata normal form. 3/195 useless extension candidates. Maximal degree in co-relation 1680. Up to 79 conditions per place. [2021-03-26 05:36:24,265 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 05:36:24,268 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:24,268 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:24,268 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 05:36:24,268 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 111 transitions, 2419 flow [2021-03-26 05:36:24,269 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 05:36:24,269 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:24,269 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 05:36:24,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-26 05:36:24,269 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:24,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:24,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1506906013, now seen corresponding path program 4 times [2021-03-26 05:36:24,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:24,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398111481] [2021-03-26 05:36:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:24,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:24,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:24,327 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 05:36:24,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398111481] [2021-03-26 05:36:24,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:24,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:36:24,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419609845] [2021-03-26 05:36:24,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:36:24,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:24,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:36:24,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:36:24,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:24,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 111 transitions, 2419 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 05:36:24,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:24,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:24,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:24,515 INFO L129 PetriNetUnfolder]: 49/209 cut-off events. [2021-03-26 05:36:24,515 INFO L130 PetriNetUnfolder]: For 3697/3713 co-relation queries the response was YES. [2021-03-26 05:36:24,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2054 conditions, 209 events. 49/209 cut-off events. For 3697/3713 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1167 event pairs, 0 based on Foata normal form. 5/213 useless extension candidates. Maximal degree in co-relation 2001. Up to 85 conditions per place. [2021-03-26 05:36:24,516 INFO L132 encePairwiseOnDemand]: 52/68 looper letters, 13 selfloop transitions, 77 changer transitions 23/122 dead transitions. [2021-03-26 05:36:24,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 122 transitions, 2810 flow [2021-03-26 05:36:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 05:36:24,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 05:36:24,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 363 transitions. [2021-03-26 05:36:24,517 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44485294117647056 [2021-03-26 05:36:24,517 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 363 transitions. [2021-03-26 05:36:24,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 363 transitions. [2021-03-26 05:36:24,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:24,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 363 transitions. [2021-03-26 05:36:24,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.25) internal successors, (363), 12 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:24,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 05:36:24,519 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 05:36:24,520 INFO L185 Difference]: Start difference. First operand has 103 places, 111 transitions, 2419 flow. Second operand 12 states and 363 transitions. [2021-03-26 05:36:24,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 122 transitions, 2810 flow [2021-03-26 05:36:24,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 122 transitions, 2610 flow, removed 1 selfloop flow, removed 8 redundant places. [2021-03-26 05:36:24,535 INFO L241 Difference]: Finished difference. Result has 107 places, 95 transitions, 2020 flow [2021-03-26 05:36:24,535 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2231, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2020, PETRI_PLACES=107, PETRI_TRANSITIONS=95} [2021-03-26 05:36:24,535 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 74 predicate places. [2021-03-26 05:36:24,535 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:24,535 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 95 transitions, 2020 flow [2021-03-26 05:36:24,535 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 95 transitions, 2020 flow [2021-03-26 05:36:24,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 2020 flow [2021-03-26 05:36:24,550 INFO L129 PetriNetUnfolder]: 37/168 cut-off events. [2021-03-26 05:36:24,551 INFO L130 PetriNetUnfolder]: For 2753/2757 co-relation queries the response was YES. [2021-03-26 05:36:24,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 168 events. 37/168 cut-off events. For 2753/2757 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 890 event pairs, 0 based on Foata normal form. 4/172 useless extension candidates. Maximal degree in co-relation 1482. Up to 69 conditions per place. [2021-03-26 05:36:24,552 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 05:36:24,555 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:24,555 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:24,555 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 05:36:24,556 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 2020 flow [2021-03-26 05:36:24,556 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 05:36:24,556 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:24,556 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 05:36:24,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-26 05:36:24,556 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:24,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:24,557 INFO L82 PathProgramCache]: Analyzing trace with hash 2593898, now seen corresponding path program 3 times [2021-03-26 05:36:24,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:24,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280631959] [2021-03-26 05:36:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:24,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:24,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:24,603 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 05:36:24,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280631959] [2021-03-26 05:36:24,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:24,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:36:24,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778596772] [2021-03-26 05:36:24,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:36:24,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:24,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:36:24,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:36:24,604 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:24,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 2020 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 05:36:24,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:24,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:24,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:24,784 INFO L129 PetriNetUnfolder]: 35/174 cut-off events. [2021-03-26 05:36:24,784 INFO L130 PetriNetUnfolder]: For 2891/2907 co-relation queries the response was YES. [2021-03-26 05:36:24,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 174 events. 35/174 cut-off events. For 2891/2907 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 951 event pairs, 0 based on Foata normal form. 11/184 useless extension candidates. Maximal degree in co-relation 1684. Up to 65 conditions per place. [2021-03-26 05:36:24,785 INFO L132 encePairwiseOnDemand]: 53/68 looper letters, 15 selfloop transitions, 61 changer transitions 19/104 dead transitions. [2021-03-26 05:36:24,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 104 transitions, 2298 flow [2021-03-26 05:36:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 05:36:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 05:36:24,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 363 transitions. [2021-03-26 05:36:24,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44485294117647056 [2021-03-26 05:36:24,787 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 363 transitions. [2021-03-26 05:36:24,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 363 transitions. [2021-03-26 05:36:24,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:24,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 363 transitions. [2021-03-26 05:36:24,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.25) internal successors, (363), 12 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:24,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 05:36:24,789 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 05:36:24,789 INFO L185 Difference]: Start difference. First operand has 103 places, 95 transitions, 2020 flow. Second operand 12 states and 363 transitions. [2021-03-26 05:36:24,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 104 transitions, 2298 flow [2021-03-26 05:36:24,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 104 transitions, 2071 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-26 05:36:24,801 INFO L241 Difference]: Finished difference. Result has 103 places, 78 transitions, 1509 flow [2021-03-26 05:36:24,801 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=1731, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1509, PETRI_PLACES=103, PETRI_TRANSITIONS=78} [2021-03-26 05:36:24,802 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 70 predicate places. [2021-03-26 05:36:24,802 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:24,802 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 78 transitions, 1509 flow [2021-03-26 05:36:24,802 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 78 transitions, 1509 flow [2021-03-26 05:36:24,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 78 transitions, 1509 flow [2021-03-26 05:36:24,812 INFO L129 PetriNetUnfolder]: 24/122 cut-off events. [2021-03-26 05:36:24,812 INFO L130 PetriNetUnfolder]: For 1670/1671 co-relation queries the response was YES. [2021-03-26 05:36:24,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 997 conditions, 122 events. 24/122 cut-off events. For 1670/1671 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 583 event pairs, 0 based on Foata normal form. 1/123 useless extension candidates. Maximal degree in co-relation 949. Up to 41 conditions per place. [2021-03-26 05:36:24,813 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 05:36:24,816 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:24,816 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:24,816 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 05:36:24,816 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 78 transitions, 1509 flow [2021-03-26 05:36:24,817 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 05:36:24,817 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:24,817 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 05:36:24,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-26 05:36:24,817 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:24,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:24,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1860081871, now seen corresponding path program 1 times [2021-03-26 05:36:24,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:24,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916942502] [2021-03-26 05:36:24,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:24,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:24,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:24,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:24,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:24,854 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 05:36:24,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916942502] [2021-03-26 05:36:24,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:24,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:36:24,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006515926] [2021-03-26 05:36:24,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:36:24,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:24,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:36:24,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:36:24,855 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:24,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 78 transitions, 1509 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 05:36:24,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:24,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:24,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:24,975 INFO L129 PetriNetUnfolder]: 18/111 cut-off events. [2021-03-26 05:36:24,975 INFO L130 PetriNetUnfolder]: For 1841/1843 co-relation queries the response was YES. [2021-03-26 05:36:24,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 111 events. 18/111 cut-off events. For 1841/1843 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 496 event pairs, 0 based on Foata normal form. 8/119 useless extension candidates. Maximal degree in co-relation 978. Up to 37 conditions per place. [2021-03-26 05:36:24,975 INFO L132 encePairwiseOnDemand]: 56/68 looper letters, 10 selfloop transitions, 52 changer transitions 5/76 dead transitions. [2021-03-26 05:36:24,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 76 transitions, 1586 flow [2021-03-26 05:36:24,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:36:24,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:36:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 268 transitions. [2021-03-26 05:36:24,976 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43790849673202614 [2021-03-26 05:36:24,976 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 268 transitions. [2021-03-26 05:36:24,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 268 transitions. [2021-03-26 05:36:24,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:24,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 268 transitions. [2021-03-26 05:36:24,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 29.77777777777778) internal successors, (268), 9 states have internal predecessors, (268), 0 states have call successors, (0), 0 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 05:36:24,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:24,978 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:24,978 INFO L185 Difference]: Start difference. First operand has 103 places, 78 transitions, 1509 flow. Second operand 9 states and 268 transitions. [2021-03-26 05:36:24,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 76 transitions, 1586 flow [2021-03-26 05:36:24,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 76 transitions, 1420 flow, removed 6 selfloop flow, removed 13 redundant places. [2021-03-26 05:36:24,985 INFO L241 Difference]: Finished difference. Result has 98 places, 69 transitions, 1268 flow [2021-03-26 05:36:24,986 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=1214, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1268, PETRI_PLACES=98, PETRI_TRANSITIONS=69} [2021-03-26 05:36:24,986 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 65 predicate places. [2021-03-26 05:36:24,986 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:24,986 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 69 transitions, 1268 flow [2021-03-26 05:36:24,986 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 69 transitions, 1268 flow [2021-03-26 05:36:24,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 69 transitions, 1268 flow [2021-03-26 05:36:24,994 INFO L129 PetriNetUnfolder]: 15/95 cut-off events. [2021-03-26 05:36:24,994 INFO L130 PetriNetUnfolder]: For 1080/1080 co-relation queries the response was YES. [2021-03-26 05:36:24,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 95 events. 15/95 cut-off events. For 1080/1080 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 396 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 738. Up to 31 conditions per place. [2021-03-26 05:36:24,995 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 05:36:24,997 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:24,997 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:24,997 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 05:36:24,998 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 69 transitions, 1268 flow [2021-03-26 05:36:24,998 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 05:36:24,998 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:24,998 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 05:36:24,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-26 05:36:24,998 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:24,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:24,999 INFO L82 PathProgramCache]: Analyzing trace with hash 193829435, now seen corresponding path program 2 times [2021-03-26 05:36:24,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:24,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705502612] [2021-03-26 05:36:24,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:25,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:25,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:25,030 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 05:36:25,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705502612] [2021-03-26 05:36:25,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:25,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:36:25,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612448433] [2021-03-26 05:36:25,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:36:25,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:25,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:36:25,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:36:25,031 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:25,032 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 69 transitions, 1268 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 05:36:25,032 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:25,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:25,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:25,124 INFO L129 PetriNetUnfolder]: 9/70 cut-off events. [2021-03-26 05:36:25,124 INFO L130 PetriNetUnfolder]: For 1272/1274 co-relation queries the response was YES. [2021-03-26 05:36:25,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 70 events. 9/70 cut-off events. For 1272/1274 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 250 event pairs, 1 based on Foata normal form. 9/79 useless extension candidates. Maximal degree in co-relation 682. Up to 25 conditions per place. [2021-03-26 05:36:25,125 INFO L132 encePairwiseOnDemand]: 59/68 looper letters, 9 selfloop transitions, 18 changer transitions 18/54 dead transitions. [2021-03-26 05:36:25,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 54 transitions, 1092 flow [2021-03-26 05:36:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 05:36:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 05:36:25,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 233 transitions. [2021-03-26 05:36:25,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42830882352941174 [2021-03-26 05:36:25,126 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 233 transitions. [2021-03-26 05:36:25,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 233 transitions. [2021-03-26 05:36:25,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:25,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 233 transitions. [2021-03-26 05:36:25,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 29.125) internal successors, (233), 8 states have internal predecessors, (233), 0 states have call successors, (0), 0 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 05:36:25,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:25,127 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:25,128 INFO L185 Difference]: Start difference. First operand has 98 places, 69 transitions, 1268 flow. Second operand 8 states and 233 transitions. [2021-03-26 05:36:25,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 54 transitions, 1092 flow [2021-03-26 05:36:25,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 54 transitions, 827 flow, removed 1 selfloop flow, removed 24 redundant places. [2021-03-26 05:36:25,133 INFO L241 Difference]: Finished difference. Result has 79 places, 35 transitions, 445 flow [2021-03-26 05:36:25,133 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=445, PETRI_PLACES=79, PETRI_TRANSITIONS=35} [2021-03-26 05:36:25,134 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 46 predicate places. [2021-03-26 05:36:25,134 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:25,134 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 35 transitions, 445 flow [2021-03-26 05:36:25,135 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 35 transitions, 445 flow [2021-03-26 05:36:25,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 35 transitions, 445 flow [2021-03-26 05:36:25,138 INFO L129 PetriNetUnfolder]: 5/39 cut-off events. [2021-03-26 05:36:25,138 INFO L130 PetriNetUnfolder]: For 245/246 co-relation queries the response was YES. [2021-03-26 05:36:25,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 39 events. 5/39 cut-off events. For 245/246 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 63 event pairs, 0 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 205. Up to 11 conditions per place. [2021-03-26 05:36:25,140 INFO L142 LiptonReduction]: Number of co-enabled transitions 4 [2021-03-26 05:36:25,140 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:25,140 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:25,140 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 05:36:25,141 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 35 transitions, 445 flow [2021-03-26 05:36:25,141 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 05:36:25,141 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:25,141 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 05:36:25,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-26 05:36:25,141 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:25,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1618707751, now seen corresponding path program 3 times [2021-03-26 05:36:25,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:25,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80849965] [2021-03-26 05:36:25,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:25,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:25,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:25,201 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 05:36:25,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80849965] [2021-03-26 05:36:25,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:25,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:36:25,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818105986] [2021-03-26 05:36:25,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:36:25,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:25,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:36:25,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:36:25,202 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:25,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 35 transitions, 445 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 05:36:25,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:25,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:25,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:25,279 INFO L129 PetriNetUnfolder]: 4/38 cut-off events. [2021-03-26 05:36:25,279 INFO L130 PetriNetUnfolder]: For 287/289 co-relation queries the response was YES. [2021-03-26 05:36:25,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 38 events. 4/38 cut-off events. For 287/289 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 61 event pairs, 0 based on Foata normal form. 4/42 useless extension candidates. Maximal degree in co-relation 227. Up to 11 conditions per place. [2021-03-26 05:36:25,279 INFO L132 encePairwiseOnDemand]: 59/68 looper letters, 2 selfloop transitions, 13 changer transitions 9/33 dead transitions. [2021-03-26 05:36:25,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 33 transitions, 461 flow [2021-03-26 05:36:25,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 05:36:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 05:36:25,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 223 transitions. [2021-03-26 05:36:25,280 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4099264705882353 [2021-03-26 05:36:25,280 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 223 transitions. [2021-03-26 05:36:25,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 223 transitions. [2021-03-26 05:36:25,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:25,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 223 transitions. [2021-03-26 05:36:25,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 27.875) internal successors, (223), 8 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:25,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:25,281 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:36:25,281 INFO L185 Difference]: Start difference. First operand has 72 places, 35 transitions, 445 flow. Second operand 8 states and 223 transitions. [2021-03-26 05:36:25,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 33 transitions, 461 flow [2021-03-26 05:36:25,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 33 transitions, 233 flow, removed 2 selfloop flow, removed 31 redundant places. [2021-03-26 05:36:25,283 INFO L241 Difference]: Finished difference. Result has 48 places, 24 transitions, 144 flow [2021-03-26 05:36:25,283 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=144, PETRI_PLACES=48, PETRI_TRANSITIONS=24} [2021-03-26 05:36:25,285 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2021-03-26 05:36:25,286 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:25,286 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 24 transitions, 144 flow [2021-03-26 05:36:25,286 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 24 transitions, 144 flow [2021-03-26 05:36:25,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 24 transitions, 144 flow [2021-03-26 05:36:25,288 INFO L129 PetriNetUnfolder]: 1/25 cut-off events. [2021-03-26 05:36:25,288 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2021-03-26 05:36:25,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 25 events. 1/25 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2021-03-26 05:36:25,288 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 05:36:25,289 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:25,289 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:25,289 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-03-26 05:36:25,291 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 24 transitions, 144 flow [2021-03-26 05:36:25,291 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 05:36:25,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:36:25,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:36:25,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-26 05:36:25,291 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:36:25,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:36:25,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1450318777, now seen corresponding path program 2 times [2021-03-26 05:36:25,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:36:25,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692022324] [2021-03-26 05:36:25,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:36:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:36:25,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:36:25,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:36:25,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:36:25,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:36:25,341 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 05:36:25,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692022324] [2021-03-26 05:36:25,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:36:25,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:36:25,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335588169] [2021-03-26 05:36:25,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:36:25,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:36:25,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:36:25,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:36:25,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 68 [2021-03-26 05:36:25,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 24 transitions, 144 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 05:36:25,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:36:25,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 68 [2021-03-26 05:36:25,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:36:25,401 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-03-26 05:36:25,401 INFO L130 PetriNetUnfolder]: For 42/44 co-relation queries the response was YES. [2021-03-26 05:36:25,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 18 events. 1/18 cut-off events. For 42/44 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 3/21 useless extension candidates. Maximal degree in co-relation 74. Up to 4 conditions per place. [2021-03-26 05:36:25,402 INFO L132 encePairwiseOnDemand]: 60/68 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2021-03-26 05:36:25,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 17 transitions, 149 flow [2021-03-26 05:36:25,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:36:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:36:25,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 238 transitions. [2021-03-26 05:36:25,403 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2021-03-26 05:36:25,403 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 238 transitions. [2021-03-26 05:36:25,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 238 transitions. [2021-03-26 05:36:25,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:36:25,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 238 transitions. [2021-03-26 05:36:25,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 26.444444444444443) internal successors, (238), 9 states have internal predecessors, (238), 0 states have call successors, (0), 0 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 05:36:25,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:25,404 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 68.0) internal successors, (680), 10 states have internal predecessors, (680), 0 states have call successors, (0), 0 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 05:36:25,405 INFO L185 Difference]: Start difference. First operand has 47 places, 24 transitions, 144 flow. Second operand 9 states and 238 transitions. [2021-03-26 05:36:25,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 17 transitions, 149 flow [2021-03-26 05:36:25,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 17 transitions, 94 flow, removed 1 selfloop flow, removed 16 redundant places. [2021-03-26 05:36:25,405 INFO L241 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2021-03-26 05:36:25,405 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2021-03-26 05:36:25,406 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2021-03-26 05:36:25,406 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:36:25,406 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 0 transitions, 0 flow [2021-03-26 05:36:25,406 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 0 transitions, 0 flow [2021-03-26 05:36:25,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 05:36:25,406 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 05:36:25,406 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 05:36:25,406 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 05:36:25,407 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 05:36:25,407 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:36:25,407 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:36:25,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 05:36:25,407 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 05:36:25,407 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 05:36:25,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-26 05:36:25,411 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 05:36:25 BasicIcfg [2021-03-26 05:36:25,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 05:36:25,411 INFO L168 Benchmark]: Toolchain (without parser) took 12058.91 ms. Allocated memory was 255.9 MB in the beginning and 599.8 MB in the end (delta: 343.9 MB). Free memory was 236.4 MB in the beginning and 546.7 MB in the end (delta: -310.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.0 GB. [2021-03-26 05:36:25,411 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 05:36:25,411 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.79 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 05:36:25,412 INFO L168 Benchmark]: Boogie Preprocessor took 11.66 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.0 MB in the end (delta: 875.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 05:36:25,412 INFO L168 Benchmark]: RCFGBuilder took 312.15 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 235.3 MB in the end (delta: -1.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.0 GB. [2021-03-26 05:36:25,412 INFO L168 Benchmark]: TraceAbstraction took 11700.32 ms. Allocated memory was 255.9 MB in the beginning and 599.8 MB in the end (delta: 343.9 MB). Free memory was 234.8 MB in the beginning and 546.7 MB in the end (delta: -311.9 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.0 GB. [2021-03-26 05:36:25,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.79 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.66 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.0 MB in the end (delta: 875.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 312.15 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 235.3 MB in the end (delta: -1.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11700.32 ms. Allocated memory was 255.9 MB in the beginning and 599.8 MB in the end (delta: 343.9 MB). Free memory was 234.8 MB in the beginning and 546.7 MB in the end (delta: -311.9 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 793.0ms, 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: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 230, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 274, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 242, unknown conditional: 242, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 9, Positive conditional cache size: 9, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.9ms, 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: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 9, Positive conditional cache size: 9, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 247.7ms, 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: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 12, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 74, positive: 74, positive conditional: 66, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 34, Positive conditional cache size: 34, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 490.5ms, 41 PlacesBefore, 41 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 165 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 165, positive: 165, positive conditional: 165, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 17, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 17, positive unconditional: 1, 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: 18, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 63, positive conditional: 63, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 165, positive: 147, positive conditional: 147, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 52, Positive conditional cache size: 52, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 688.7ms, 46 PlacesBefore, 46 PlacesAfterwards, 86 TransitionsBefore, 86 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 259 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 259, positive: 259, positive conditional: 259, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 24, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 24, positive unconditional: 1, 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: 25, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 133, positive: 133, positive conditional: 133, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 259, positive: 234, positive conditional: 234, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 77, Positive conditional cache size: 77, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 325.5ms, 49 PlacesBefore, 48 PlacesAfterwards, 96 TransitionsBefore, 95 TransitionsAfterwards, 276 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 66 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 66, positive conditional: 66, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 33, positive conditional: 23, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33, positive: 33, positive conditional: 23, 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: 33, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 17, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, positive: 77, positive conditional: 69, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 7, Positive conditional cache size: 7, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.5ms, 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: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 7, Positive conditional cache size: 7, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 82.0ms, 56 PlacesBefore, 56 PlacesAfterwards, 155 TransitionsBefore, 155 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 7, Positive conditional cache size: 7, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.8ms, 64 PlacesBefore, 64 PlacesAfterwards, 184 TransitionsBefore, 184 TransitionsAfterwards, 326 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 21, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 21, positive unconditional: 5, 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: 26, positive: 26, positive conditional: 0, positive unconditional: 26, 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: 26, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 31, Positive conditional cache size: 31, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.8ms, 68 PlacesBefore, 68 PlacesAfterwards, 181 TransitionsBefore, 181 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 31, Positive conditional cache size: 31, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.1ms, 71 PlacesBefore, 71 PlacesAfterwards, 200 TransitionsBefore, 200 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 0, positive unconditional: 23, 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: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 54, Positive conditional cache size: 54, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85.0ms, 76 PlacesBefore, 76 PlacesAfterwards, 208 TransitionsBefore, 208 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 54, Positive conditional cache size: 54, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 84.7ms, 77 PlacesBefore, 77 PlacesAfterwards, 206 TransitionsBefore, 206 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 54, Positive conditional cache size: 54, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.9ms, 79 PlacesBefore, 79 PlacesAfterwards, 206 TransitionsBefore, 206 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 54, Positive conditional cache size: 54, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 110.4ms, 80 PlacesBefore, 80 PlacesAfterwards, 197 TransitionsBefore, 197 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 20 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 16, 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: 16, positive: 16, positive conditional: 0, positive unconditional: 16, 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: 20, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.8ms, 82 PlacesBefore, 82 PlacesAfterwards, 155 TransitionsBefore, 155 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.2ms, 82 PlacesBefore, 82 PlacesAfterwards, 154 TransitionsBefore, 154 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.3ms, 87 PlacesBefore, 87 PlacesAfterwards, 137 TransitionsBefore, 137 TransitionsAfterwards, 98 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.6ms, 83 PlacesBefore, 83 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.1ms, 89 PlacesBefore, 89 PlacesAfterwards, 125 TransitionsBefore, 125 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.1ms, 88 PlacesBefore, 88 PlacesAfterwards, 127 TransitionsBefore, 127 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.1ms, 93 PlacesBefore, 93 PlacesAfterwards, 119 TransitionsBefore, 119 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.6ms, 96 PlacesBefore, 96 PlacesAfterwards, 124 TransitionsBefore, 124 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.7ms, 98 PlacesBefore, 98 PlacesAfterwards, 110 TransitionsBefore, 110 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.5ms, 103 PlacesBefore, 103 PlacesAfterwards, 111 TransitionsBefore, 111 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.1ms, 107 PlacesBefore, 103 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.9ms, 103 PlacesBefore, 103 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.3ms, 98 PlacesBefore, 98 PlacesAfterwards, 69 TransitionsBefore, 69 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7ms, 79 PlacesBefore, 72 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4ms, 48 PlacesBefore, 47 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 33 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - PositiveResult [Line: 80]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 11565.4ms, OverallIterations: 30, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5999.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 858.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 115 SDslu, 10 SDs, 0 SdLazy, 4466 SolverSat, 941 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2273.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 263 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 955.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4080occurred in iteration=13, InterpolantAutomatonStates: 226, 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: 39.8ms SsaConstructionTime, 197.4ms SatisfiabilityAnalysisTime, 1182.6ms InterpolantComputationTime, 566 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 536 ConstructedInterpolants, 0 QuantifiedInterpolants, 1586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 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...