/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/lamport.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 05:16:52,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 05:16:52,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 05:16:52,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 05:16:52,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 05:16:52,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 05:16:52,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 05:16:52,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 05:16:52,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 05:16:52,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 05:16:52,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 05:16:52,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 05:16:52,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 05:16:52,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 05:16:52,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 05:16:52,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 05:16:52,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 05:16:52,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 05:16:52,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 05:16:52,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 05:16:52,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 05:16:52,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 05:16:52,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 05:16:52,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 05:16:52,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 05:16:52,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 05:16:52,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 05:16:52,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 05:16:52,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 05:16:52,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-26 05:16:52,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 05:16:52,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 05:16:52,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 05:16:52,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 05:16:52,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 05:16:52,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 05:16:52,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 05:16:52,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 05:16:52,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 05:16:52,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 05:16:52,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 05:16:52,514 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 05:16:52,545 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 05:16:52,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 05:16:52,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 05:16:52,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 05:16:52,548 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 05:16:52,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 05:16:52,549 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 05:16:52,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 05:16:52,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 05:16:52,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 05:16:52,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 05:16:52,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 05:16:52,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 05:16:52,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 05:16:52,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 05:16:52,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 05:16:52,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 05:16:52,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 05:16:52,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 05:16:52,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 05:16:52,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 05:16:52,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 05:16:52,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 05:16:52,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 05:16:52,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 05:16:52,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 05:16:52,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 05:16:52,552 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 05:16:52,552 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 05:16:52,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 05:16:52,553 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 05:16:52,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 05:16:52,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 05:16:52,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 05:16:52,909 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 05:16:52,912 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 05:16:52,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl [2021-03-26 05:16:52,921 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl' [2021-03-26 05:16:52,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 05:16:52,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 05:16:52,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 05:16:52,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 05:16:52,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 05:16:52,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/1) ... [2021-03-26 05:16:52,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/1) ... [2021-03-26 05:16:52,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 05:16:52,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 05:16:52,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 05:16:52,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 05:16:52,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/1) ... [2021-03-26 05:16:52,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/1) ... [2021-03-26 05:16:52,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/1) ... [2021-03-26 05:16:52,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/1) ... [2021-03-26 05:16:52,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/1) ... [2021-03-26 05:16:52,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/1) ... [2021-03-26 05:16:52,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/1) ... [2021-03-26 05:16:52,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 05:16:52,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 05:16:52,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 05:16:52,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 05:16:52,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (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 05:16:53,054 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 05:16:53,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 05:16:53,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 05:16:53,056 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 05:16:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 05:16:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 05:16:53,057 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 05:16:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 05:16:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 05:16:53,057 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-26 05:16:53,057 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-26 05:16:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-26 05:16:53,058 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 05:16:53,204 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 05:16:53,204 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 05:16:53,205 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:16:53 BoogieIcfgContainer [2021-03-26 05:16:53,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 05:16:53,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 05:16:53,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 05:16:53,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 05:16:53,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:52" (1/2) ... [2021-03-26 05:16:53,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3147e45e and model type lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 05:16:53, skipping insertion in model container [2021-03-26 05:16:53,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:16:53" (2/2) ... [2021-03-26 05:16:53,213 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.wvr.bpl [2021-03-26 05:16:53,218 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 05:16:53,222 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 05:16:53,224 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 05:16:53,287 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-26 05:16:53,313 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 05:16:53,343 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 05:16:53,343 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 05:16:53,343 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 05:16:53,343 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 05:16:53,343 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 05:16:53,343 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 05:16:53,344 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 05:16:53,344 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 05:16:53,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 106 flow [2021-03-26 05:16:53,375 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-26 05:16:53,375 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 05:16:53,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 0/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 05:16:53,376 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 106 flow [2021-03-26 05:16:53,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 90 flow [2021-03-26 05:16:53,380 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:53,389 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 90 flow [2021-03-26 05:16:53,395 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 90 flow [2021-03-26 05:16:53,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 90 flow [2021-03-26 05:16:53,414 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-03-26 05:16:53,414 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 05:16:53,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 36 events. 0/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 05:16:53,415 INFO L142 LiptonReduction]: Number of co-enabled transitions 412 [2021-03-26 05:16:53,710 INFO L154 LiptonReduction]: Checked pairs total: 992 [2021-03-26 05:16:53,710 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-26 05:16:53,716 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 337 [2021-03-26 05:16:53,728 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-26 05:16:53,728 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 05:16:53,728 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:53,729 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:53,729 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:53,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:53,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1305402496, now seen corresponding path program 1 times [2021-03-26 05:16:53,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:53,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015494759] [2021-03-26 05:16:53,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:53,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:53,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:53,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:53,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:53,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:53,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:53,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:53,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:53,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:53,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:53,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:53,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:53,851 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 05:16:53,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015494759] [2021-03-26 05:16:53,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:53,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:16:53,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802152835] [2021-03-26 05:16:53,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:16:53,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:53,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:16:53,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:16:53,867 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 53 [2021-03-26 05:16:53,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 66 flow. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:53,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:53,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 53 [2021-03-26 05:16:53,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:53,953 INFO L129 PetriNetUnfolder]: 15/89 cut-off events. [2021-03-26 05:16:53,954 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-26 05:16:53,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 89 events. 15/89 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 344 event pairs, 1 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 130. Up to 23 conditions per place. [2021-03-26 05:16:53,956 INFO L132 encePairwiseOnDemand]: 46/53 looper letters, 12 selfloop transitions, 11 changer transitions 2/42 dead transitions. [2021-03-26 05:16:53,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 42 transitions, 152 flow [2021-03-26 05:16:53,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:53,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 386 transitions. [2021-03-26 05:16:53,980 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8092243186582809 [2021-03-26 05:16:53,981 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 386 transitions. [2021-03-26 05:16:53,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 386 transitions. [2021-03-26 05:16:53,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:53,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 386 transitions. [2021-03-26 05:16:53,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.888888888888886) internal successors, (386), 9 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:53,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:53,990 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:53,991 INFO L185 Difference]: Start difference. First operand has 34 places, 24 transitions, 66 flow. Second operand 9 states and 386 transitions. [2021-03-26 05:16:53,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 42 transitions, 152 flow [2021-03-26 05:16:53,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 140 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 05:16:53,995 INFO L241 Difference]: Finished difference. Result has 40 places, 34 transitions, 119 flow [2021-03-26 05:16:53,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=119, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2021-03-26 05:16:53,996 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2021-03-26 05:16:53,997 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:53,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 34 transitions, 119 flow [2021-03-26 05:16:53,997 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 34 transitions, 119 flow [2021-03-26 05:16:53,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 119 flow [2021-03-26 05:16:54,002 INFO L129 PetriNetUnfolder]: 4/58 cut-off events. [2021-03-26 05:16:54,003 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 05:16:54,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 58 events. 4/58 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 164 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 88. Up to 9 conditions per place. [2021-03-26 05:16:54,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-26 05:16:54,050 INFO L154 LiptonReduction]: Checked pairs total: 702 [2021-03-26 05:16:54,051 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 05:16:54,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-26 05:16:54,052 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 118 flow [2021-03-26 05:16:54,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,052 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:54,052 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:54,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 05:16:54,052 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:54,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:54,053 INFO L82 PathProgramCache]: Analyzing trace with hash 620299272, now seen corresponding path program 2 times [2021-03-26 05:16:54,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:54,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219959304] [2021-03-26 05:16:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:54,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:54,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:54,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:54,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:16:54,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,101 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 05:16:54,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219959304] [2021-03-26 05:16:54,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:54,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:16:54,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854628512] [2021-03-26 05:16:54,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:16:54,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:54,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:16:54,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:16:54,103 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 55 [2021-03-26 05:16:54,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:54,104 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 55 [2021-03-26 05:16:54,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:54,199 INFO L129 PetriNetUnfolder]: 79/300 cut-off events. [2021-03-26 05:16:54,200 INFO L130 PetriNetUnfolder]: For 15/17 co-relation queries the response was YES. [2021-03-26 05:16:54,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 300 events. 79/300 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1868 event pairs, 8 based on Foata normal form. 2/285 useless extension candidates. Maximal degree in co-relation 578. Up to 48 conditions per place. [2021-03-26 05:16:54,203 INFO L132 encePairwiseOnDemand]: 46/55 looper letters, 19 selfloop transitions, 17 changer transitions 0/60 dead transitions. [2021-03-26 05:16:54,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 60 transitions, 244 flow [2021-03-26 05:16:54,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:54,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:54,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 352 transitions. [2021-03-26 05:16:54,205 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2021-03-26 05:16:54,205 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 352 transitions. [2021-03-26 05:16:54,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 352 transitions. [2021-03-26 05:16:54,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:54,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 352 transitions. [2021-03-26 05:16:54,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.111111111111114) internal successors, (352), 9 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,207 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,208 INFO L185 Difference]: Start difference. First operand has 37 places, 33 transitions, 118 flow. Second operand 9 states and 352 transitions. [2021-03-26 05:16:54,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 60 transitions, 244 flow [2021-03-26 05:16:54,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 60 transitions, 242 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 05:16:54,213 INFO L241 Difference]: Finished difference. Result has 50 places, 50 transitions, 232 flow [2021-03-26 05:16:54,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=232, PETRI_PLACES=50, PETRI_TRANSITIONS=50} [2021-03-26 05:16:54,214 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 16 predicate places. [2021-03-26 05:16:54,214 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:54,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 50 transitions, 232 flow [2021-03-26 05:16:54,215 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 50 transitions, 232 flow [2021-03-26 05:16:54,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 232 flow [2021-03-26 05:16:54,242 INFO L129 PetriNetUnfolder]: 41/207 cut-off events. [2021-03-26 05:16:54,243 INFO L130 PetriNetUnfolder]: For 68/69 co-relation queries the response was YES. [2021-03-26 05:16:54,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 207 events. 41/207 cut-off events. For 68/69 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1181 event pairs, 1 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 395. Up to 36 conditions per place. [2021-03-26 05:16:54,246 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-26 05:16:54,336 INFO L154 LiptonReduction]: Checked pairs total: 457 [2021-03-26 05:16:54,337 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:54,337 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123 [2021-03-26 05:16:54,338 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 50 transitions, 233 flow [2021-03-26 05:16:54,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:54,338 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:54,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 05:16:54,339 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:54,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:54,339 INFO L82 PathProgramCache]: Analyzing trace with hash -273826784, now seen corresponding path program 1 times [2021-03-26 05:16:54,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:54,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571353052] [2021-03-26 05:16:54,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:54,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,393 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 05:16:54,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571353052] [2021-03-26 05:16:54,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:54,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:16:54,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346200140] [2021-03-26 05:16:54,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:16:54,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:54,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:16:54,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:16:54,396 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 56 [2021-03-26 05:16:54,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 50 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:54,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 56 [2021-03-26 05:16:54,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:54,416 INFO L129 PetriNetUnfolder]: 40/211 cut-off events. [2021-03-26 05:16:54,416 INFO L130 PetriNetUnfolder]: For 76/77 co-relation queries the response was YES. [2021-03-26 05:16:54,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 211 events. 40/211 cut-off events. For 76/77 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1201 event pairs, 3 based on Foata normal form. 2/206 useless extension candidates. Maximal degree in co-relation 423. Up to 33 conditions per place. [2021-03-26 05:16:54,418 INFO L132 encePairwiseOnDemand]: 53/56 looper letters, 3 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2021-03-26 05:16:54,418 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 243 flow [2021-03-26 05:16:54,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:16:54,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:16:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2021-03-26 05:16:54,419 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8392857142857143 [2021-03-26 05:16:54,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 141 transitions. [2021-03-26 05:16:54,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 141 transitions. [2021-03-26 05:16:54,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:54,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 141 transitions. [2021-03-26 05:16:54,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,421 INFO L185 Difference]: Start difference. First operand has 50 places, 50 transitions, 233 flow. Second operand 3 states and 141 transitions. [2021-03-26 05:16:54,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 243 flow [2021-03-26 05:16:54,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 05:16:54,423 INFO L241 Difference]: Finished difference. Result has 53 places, 49 transitions, 244 flow [2021-03-26 05:16:54,424 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2021-03-26 05:16:54,424 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2021-03-26 05:16:54,424 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:54,424 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 49 transitions, 244 flow [2021-03-26 05:16:54,424 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 49 transitions, 244 flow [2021-03-26 05:16:54,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 244 flow [2021-03-26 05:16:54,434 INFO L129 PetriNetUnfolder]: 28/171 cut-off events. [2021-03-26 05:16:54,434 INFO L130 PetriNetUnfolder]: For 64/65 co-relation queries the response was YES. [2021-03-26 05:16:54,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 171 events. 28/171 cut-off events. For 64/65 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 942 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 327. Up to 27 conditions per place. [2021-03-26 05:16:54,436 INFO L142 LiptonReduction]: Number of co-enabled transitions 360 [2021-03-26 05:16:54,471 INFO L154 LiptonReduction]: Checked pairs total: 354 [2021-03-26 05:16:54,472 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:54,472 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-26 05:16:54,473 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 246 flow [2021-03-26 05:16:54,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:54,473 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:54,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 05:16:54,473 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:54,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:54,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1128996384, now seen corresponding path program 2 times [2021-03-26 05:16:54,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:54,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726464305] [2021-03-26 05:16:54,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:54,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,530 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 05:16:54,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726464305] [2021-03-26 05:16:54,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:54,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:16:54,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318856744] [2021-03-26 05:16:54,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:16:54,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:54,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:16:54,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:16:54,532 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 57 [2021-03-26 05:16:54,532 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 246 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,532 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:54,532 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 57 [2021-03-26 05:16:54,532 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:54,665 INFO L129 PetriNetUnfolder]: 114/462 cut-off events. [2021-03-26 05:16:54,666 INFO L130 PetriNetUnfolder]: For 455/539 co-relation queries the response was YES. [2021-03-26 05:16:54,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1281 conditions, 462 events. 114/462 cut-off events. For 455/539 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3387 event pairs, 11 based on Foata normal form. 37/489 useless extension candidates. Maximal degree in co-relation 1187. Up to 78 conditions per place. [2021-03-26 05:16:54,669 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 40 selfloop transitions, 20 changer transitions 0/84 dead transitions. [2021-03-26 05:16:54,669 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 84 transitions, 564 flow [2021-03-26 05:16:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:54,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:54,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 356 transitions. [2021-03-26 05:16:54,670 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6939571150097466 [2021-03-26 05:16:54,670 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 356 transitions. [2021-03-26 05:16:54,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 356 transitions. [2021-03-26 05:16:54,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:54,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 356 transitions. [2021-03-26 05:16:54,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.55555555555556) internal successors, (356), 9 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,673 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,673 INFO L185 Difference]: Start difference. First operand has 53 places, 49 transitions, 246 flow. Second operand 9 states and 356 transitions. [2021-03-26 05:16:54,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 84 transitions, 564 flow [2021-03-26 05:16:54,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 84 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 05:16:54,677 INFO L241 Difference]: Finished difference. Result has 65 places, 63 transitions, 407 flow [2021-03-26 05:16:54,677 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=407, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2021-03-26 05:16:54,677 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 31 predicate places. [2021-03-26 05:16:54,677 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:54,678 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 63 transitions, 407 flow [2021-03-26 05:16:54,678 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 63 transitions, 407 flow [2021-03-26 05:16:54,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 63 transitions, 407 flow [2021-03-26 05:16:54,695 INFO L129 PetriNetUnfolder]: 69/339 cut-off events. [2021-03-26 05:16:54,695 INFO L130 PetriNetUnfolder]: For 357/372 co-relation queries the response was YES. [2021-03-26 05:16:54,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 940 conditions, 339 events. 69/339 cut-off events. For 357/372 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2349 event pairs, 1 based on Foata normal form. 7/340 useless extension candidates. Maximal degree in co-relation 849. Up to 58 conditions per place. [2021-03-26 05:16:54,698 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-26 05:16:54,712 INFO L154 LiptonReduction]: Checked pairs total: 184 [2021-03-26 05:16:54,712 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:54,712 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-26 05:16:54,713 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 407 flow [2021-03-26 05:16:54,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,713 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:54,713 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:54,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 05:16:54,713 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:54,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:54,714 INFO L82 PathProgramCache]: Analyzing trace with hash -477632108, now seen corresponding path program 1 times [2021-03-26 05:16:54,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:54,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657896757] [2021-03-26 05:16:54,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:54,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,726 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 05:16:54,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657896757] [2021-03-26 05:16:54,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:54,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:16:54,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112450317] [2021-03-26 05:16:54,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:16:54,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:54,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:16:54,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:16:54,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 57 [2021-03-26 05:16:54,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:54,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 57 [2021-03-26 05:16:54,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:54,749 INFO L129 PetriNetUnfolder]: 69/350 cut-off events. [2021-03-26 05:16:54,749 INFO L130 PetriNetUnfolder]: For 372/386 co-relation queries the response was YES. [2021-03-26 05:16:54,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 350 events. 69/350 cut-off events. For 372/386 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2403 event pairs, 5 based on Foata normal form. 10/353 useless extension candidates. Maximal degree in co-relation 885. Up to 60 conditions per place. [2021-03-26 05:16:54,751 INFO L132 encePairwiseOnDemand]: 54/57 looper letters, 2 selfloop transitions, 9 changer transitions 0/63 dead transitions. [2021-03-26 05:16:54,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 63 transitions, 429 flow [2021-03-26 05:16:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:16:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:16:54,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2021-03-26 05:16:54,752 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8713450292397661 [2021-03-26 05:16:54,752 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 149 transitions. [2021-03-26 05:16:54,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 149 transitions. [2021-03-26 05:16:54,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:54,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 149 transitions. [2021-03-26 05:16:54,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,753 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,753 INFO L185 Difference]: Start difference. First operand has 65 places, 63 transitions, 407 flow. Second operand 3 states and 149 transitions. [2021-03-26 05:16:54,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 63 transitions, 429 flow [2021-03-26 05:16:54,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 63 transitions, 423 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-03-26 05:16:54,757 INFO L241 Difference]: Finished difference. Result has 68 places, 63 transitions, 430 flow [2021-03-26 05:16:54,757 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2021-03-26 05:16:54,757 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 34 predicate places. [2021-03-26 05:16:54,757 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:54,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 63 transitions, 430 flow [2021-03-26 05:16:54,757 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 63 transitions, 430 flow [2021-03-26 05:16:54,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 63 transitions, 430 flow [2021-03-26 05:16:54,772 INFO L129 PetriNetUnfolder]: 54/301 cut-off events. [2021-03-26 05:16:54,772 INFO L130 PetriNetUnfolder]: For 308/321 co-relation queries the response was YES. [2021-03-26 05:16:54,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 834 conditions, 301 events. 54/301 cut-off events. For 308/321 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2017 event pairs, 2 based on Foata normal form. 7/299 useless extension candidates. Maximal degree in co-relation 741. Up to 46 conditions per place. [2021-03-26 05:16:54,775 INFO L142 LiptonReduction]: Number of co-enabled transitions 442 [2021-03-26 05:16:54,837 INFO L154 LiptonReduction]: Checked pairs total: 176 [2021-03-26 05:16:54,837 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 05:16:54,837 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-26 05:16:54,838 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 436 flow [2021-03-26 05:16:54,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:54,838 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:54,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 05:16:54,838 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:54,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:54,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1573386196, now seen corresponding path program 2 times [2021-03-26 05:16:54,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:54,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477980328] [2021-03-26 05:16:54,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:54,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:54,881 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 05:16:54,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:16:54,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:54,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:54,889 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 05:16:54,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477980328] [2021-03-26 05:16:54,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:54,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:16:54,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429343848] [2021-03-26 05:16:54,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:16:54,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:54,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:16:54,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:16:54,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 60 [2021-03-26 05:16:54,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 436 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:54,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:54,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 60 [2021-03-26 05:16:54,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:55,035 INFO L129 PetriNetUnfolder]: 111/478 cut-off events. [2021-03-26 05:16:55,035 INFO L130 PetriNetUnfolder]: For 994/1081 co-relation queries the response was YES. [2021-03-26 05:16:55,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 478 events. 111/478 cut-off events. For 994/1081 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3534 event pairs, 18 based on Foata normal form. 45/513 useless extension candidates. Maximal degree in co-relation 1461. Up to 72 conditions per place. [2021-03-26 05:16:55,038 INFO L132 encePairwiseOnDemand]: 48/60 looper letters, 35 selfloop transitions, 26 changer transitions 0/85 dead transitions. [2021-03-26 05:16:55,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 85 transitions, 725 flow [2021-03-26 05:16:55,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:55,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:55,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 355 transitions. [2021-03-26 05:16:55,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2021-03-26 05:16:55,040 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 355 transitions. [2021-03-26 05:16:55,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 355 transitions. [2021-03-26 05:16:55,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:55,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 355 transitions. [2021-03-26 05:16:55,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.44444444444444) internal successors, (355), 9 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,042 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,042 INFO L185 Difference]: Start difference. First operand has 68 places, 63 transitions, 436 flow. Second operand 9 states and 355 transitions. [2021-03-26 05:16:55,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 85 transitions, 725 flow [2021-03-26 05:16:55,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 85 transitions, 703 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 05:16:55,048 INFO L241 Difference]: Finished difference. Result has 78 places, 75 transitions, 610 flow [2021-03-26 05:16:55,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=610, PETRI_PLACES=78, PETRI_TRANSITIONS=75} [2021-03-26 05:16:55,048 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 44 predicate places. [2021-03-26 05:16:55,048 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:55,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 75 transitions, 610 flow [2021-03-26 05:16:55,049 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 75 transitions, 610 flow [2021-03-26 05:16:55,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 75 transitions, 610 flow [2021-03-26 05:16:55,085 INFO L129 PetriNetUnfolder]: 68/354 cut-off events. [2021-03-26 05:16:55,085 INFO L130 PetriNetUnfolder]: For 592/613 co-relation queries the response was YES. [2021-03-26 05:16:55,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 354 events. 68/354 cut-off events. For 592/613 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2497 event pairs, 2 based on Foata normal form. 7/356 useless extension candidates. Maximal degree in co-relation 985. Up to 57 conditions per place. [2021-03-26 05:16:55,088 INFO L142 LiptonReduction]: Number of co-enabled transitions 532 [2021-03-26 05:16:55,096 INFO L154 LiptonReduction]: Checked pairs total: 72 [2021-03-26 05:16:55,096 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:55,096 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-26 05:16:55,100 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 610 flow [2021-03-26 05:16:55,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,100 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:55,100 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 05:16:55,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 05:16:55,100 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:55,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:55,101 INFO L82 PathProgramCache]: Analyzing trace with hash 658207025, now seen corresponding path program 1 times [2021-03-26 05:16:55,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:55,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660222216] [2021-03-26 05:16:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:55,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:55,172 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 05:16:55,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660222216] [2021-03-26 05:16:55,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:55,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:16:55,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776890372] [2021-03-26 05:16:55,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:16:55,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:55,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:16:55,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:16:55,174 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 60 [2021-03-26 05:16:55,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 610 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:55,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 60 [2021-03-26 05:16:55,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:55,313 INFO L129 PetriNetUnfolder]: 110/474 cut-off events. [2021-03-26 05:16:55,313 INFO L130 PetriNetUnfolder]: For 1352/1455 co-relation queries the response was YES. [2021-03-26 05:16:55,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1683 conditions, 474 events. 110/474 cut-off events. For 1352/1455 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3480 event pairs, 17 based on Foata normal form. 44/509 useless extension candidates. Maximal degree in co-relation 1567. Up to 72 conditions per place. [2021-03-26 05:16:55,316 INFO L132 encePairwiseOnDemand]: 48/60 looper letters, 36 selfloop transitions, 25 changer transitions 0/85 dead transitions. [2021-03-26 05:16:55,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 805 flow [2021-03-26 05:16:55,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 356 transitions. [2021-03-26 05:16:55,317 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6592592592592592 [2021-03-26 05:16:55,318 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 356 transitions. [2021-03-26 05:16:55,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 356 transitions. [2021-03-26 05:16:55,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:55,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 356 transitions. [2021-03-26 05:16:55,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.55555555555556) internal successors, (356), 9 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,319 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,319 INFO L185 Difference]: Start difference. First operand has 78 places, 75 transitions, 610 flow. Second operand 9 states and 356 transitions. [2021-03-26 05:16:55,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 805 flow [2021-03-26 05:16:55,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 85 transitions, 778 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-03-26 05:16:55,325 INFO L241 Difference]: Finished difference. Result has 85 places, 76 transitions, 651 flow [2021-03-26 05:16:55,325 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=651, PETRI_PLACES=85, PETRI_TRANSITIONS=76} [2021-03-26 05:16:55,325 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 51 predicate places. [2021-03-26 05:16:55,325 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:55,325 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 76 transitions, 651 flow [2021-03-26 05:16:55,326 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 76 transitions, 651 flow [2021-03-26 05:16:55,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 76 transitions, 651 flow [2021-03-26 05:16:55,345 INFO L129 PetriNetUnfolder]: 69/353 cut-off events. [2021-03-26 05:16:55,346 INFO L130 PetriNetUnfolder]: For 671/686 co-relation queries the response was YES. [2021-03-26 05:16:55,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 353 events. 69/353 cut-off events. For 671/686 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2487 event pairs, 2 based on Foata normal form. 7/356 useless extension candidates. Maximal degree in co-relation 1014. Up to 57 conditions per place. [2021-03-26 05:16:55,348 INFO L142 LiptonReduction]: Number of co-enabled transitions 526 [2021-03-26 05:16:55,357 INFO L154 LiptonReduction]: Checked pairs total: 68 [2021-03-26 05:16:55,357 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:55,357 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-26 05:16:55,358 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 76 transitions, 651 flow [2021-03-26 05:16:55,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,358 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:55,358 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 05:16:55,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 05:16:55,358 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:55,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:55,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1785006647, now seen corresponding path program 2 times [2021-03-26 05:16:55,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:55,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202919489] [2021-03-26 05:16:55,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:55,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,396 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-26 05:16:55,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:55,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:16:55,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202919489] [2021-03-26 05:16:55,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:55,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:16:55,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489357899] [2021-03-26 05:16:55,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:16:55,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:55,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:16:55,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:16:55,405 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 60 [2021-03-26 05:16:55,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 76 transitions, 651 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:55,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 60 [2021-03-26 05:16:55,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:55,541 INFO L129 PetriNetUnfolder]: 97/450 cut-off events. [2021-03-26 05:16:55,541 INFO L130 PetriNetUnfolder]: For 1333/1419 co-relation queries the response was YES. [2021-03-26 05:16:55,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 450 events. 97/450 cut-off events. For 1333/1419 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3305 event pairs, 16 based on Foata normal form. 40/480 useless extension candidates. Maximal degree in co-relation 1466. Up to 67 conditions per place. [2021-03-26 05:16:55,543 INFO L132 encePairwiseOnDemand]: 48/60 looper letters, 36 selfloop transitions, 23 changer transitions 0/83 dead transitions. [2021-03-26 05:16:55,544 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 83 transitions, 807 flow [2021-03-26 05:16:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:55,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 355 transitions. [2021-03-26 05:16:55,545 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2021-03-26 05:16:55,545 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 355 transitions. [2021-03-26 05:16:55,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 355 transitions. [2021-03-26 05:16:55,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:55,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 355 transitions. [2021-03-26 05:16:55,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.44444444444444) internal successors, (355), 9 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,547 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,547 INFO L185 Difference]: Start difference. First operand has 85 places, 76 transitions, 651 flow. Second operand 9 states and 355 transitions. [2021-03-26 05:16:55,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 83 transitions, 807 flow [2021-03-26 05:16:55,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 83 transitions, 779 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 05:16:55,552 INFO L241 Difference]: Finished difference. Result has 91 places, 75 transitions, 663 flow [2021-03-26 05:16:55,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=663, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2021-03-26 05:16:55,552 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 57 predicate places. [2021-03-26 05:16:55,552 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:55,552 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 75 transitions, 663 flow [2021-03-26 05:16:55,552 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 75 transitions, 663 flow [2021-03-26 05:16:55,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 75 transitions, 663 flow [2021-03-26 05:16:55,571 INFO L129 PetriNetUnfolder]: 58/334 cut-off events. [2021-03-26 05:16:55,571 INFO L130 PetriNetUnfolder]: For 675/686 co-relation queries the response was YES. [2021-03-26 05:16:55,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1046 conditions, 334 events. 58/334 cut-off events. For 675/686 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2357 event pairs, 2 based on Foata normal form. 7/337 useless extension candidates. Maximal degree in co-relation 946. Up to 51 conditions per place. [2021-03-26 05:16:55,574 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-26 05:16:55,615 INFO L154 LiptonReduction]: Checked pairs total: 163 [2021-03-26 05:16:55,615 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:55,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-03-26 05:16:55,616 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 676 flow [2021-03-26 05:16:55,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,616 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:55,616 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 05:16:55,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 05:16:55,616 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:55,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:55,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1490551645, now seen corresponding path program 1 times [2021-03-26 05:16:55,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:55,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44628412] [2021-03-26 05:16:55,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:55,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,653 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-26 05:16:55,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:55,661 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 05:16:55,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44628412] [2021-03-26 05:16:55,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:55,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:16:55,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984146055] [2021-03-26 05:16:55,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:16:55,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:55,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:16:55,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:16:55,662 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 61 [2021-03-26 05:16:55,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 676 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:55,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 61 [2021-03-26 05:16:55,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:55,808 INFO L129 PetriNetUnfolder]: 84/430 cut-off events. [2021-03-26 05:16:55,808 INFO L130 PetriNetUnfolder]: For 1361/1414 co-relation queries the response was YES. [2021-03-26 05:16:55,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1529 conditions, 430 events. 84/430 cut-off events. For 1361/1414 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3139 event pairs, 7 based on Foata normal form. 4/429 useless extension candidates. Maximal degree in co-relation 1414. Up to 64 conditions per place. [2021-03-26 05:16:55,811 INFO L132 encePairwiseOnDemand]: 51/61 looper letters, 38 selfloop transitions, 23 changer transitions 0/85 dead transitions. [2021-03-26 05:16:55,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 85 transitions, 871 flow [2021-03-26 05:16:55,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:55,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 354 transitions. [2021-03-26 05:16:55,813 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2021-03-26 05:16:55,813 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 354 transitions. [2021-03-26 05:16:55,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 354 transitions. [2021-03-26 05:16:55,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:55,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 354 transitions. [2021-03-26 05:16:55,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.333333333333336) internal successors, (354), 9 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,815 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,815 INFO L185 Difference]: Start difference. First operand has 91 places, 75 transitions, 676 flow. Second operand 9 states and 354 transitions. [2021-03-26 05:16:55,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 85 transitions, 871 flow [2021-03-26 05:16:55,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 85 transitions, 815 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-03-26 05:16:55,821 INFO L241 Difference]: Finished difference. Result has 93 places, 75 transitions, 678 flow [2021-03-26 05:16:55,821 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=678, PETRI_PLACES=93, PETRI_TRANSITIONS=75} [2021-03-26 05:16:55,821 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 59 predicate places. [2021-03-26 05:16:55,821 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:55,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 75 transitions, 678 flow [2021-03-26 05:16:55,821 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 75 transitions, 678 flow [2021-03-26 05:16:55,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 75 transitions, 678 flow [2021-03-26 05:16:55,843 INFO L129 PetriNetUnfolder]: 46/313 cut-off events. [2021-03-26 05:16:55,843 INFO L130 PetriNetUnfolder]: For 632/640 co-relation queries the response was YES. [2021-03-26 05:16:55,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 313 events. 46/313 cut-off events. For 632/640 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2204 event pairs, 1 based on Foata normal form. 2/310 useless extension candidates. Maximal degree in co-relation 882. Up to 45 conditions per place. [2021-03-26 05:16:55,846 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-26 05:16:55,885 INFO L154 LiptonReduction]: Checked pairs total: 153 [2021-03-26 05:16:55,885 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:55,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-26 05:16:55,886 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 75 transitions, 692 flow [2021-03-26 05:16:55,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,886 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:55,886 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:55,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 05:16:55,886 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:55,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:55,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1693937061, now seen corresponding path program 1 times [2021-03-26 05:16:55,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:55,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527400646] [2021-03-26 05:16:55,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:55,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:55,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:55,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:55,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:55,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:55,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:55,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:55,934 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 05:16:55,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527400646] [2021-03-26 05:16:55,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:55,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:16:55,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75750548] [2021-03-26 05:16:55,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:16:55,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:55,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:16:55,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:16:55,936 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 62 [2021-03-26 05:16:55,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 75 transitions, 692 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:55,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:55,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 62 [2021-03-26 05:16:55,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:56,046 INFO L129 PetriNetUnfolder]: 109/557 cut-off events. [2021-03-26 05:16:56,046 INFO L130 PetriNetUnfolder]: For 1117/1139 co-relation queries the response was YES. [2021-03-26 05:16:56,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 557 events. 109/557 cut-off events. For 1117/1139 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4419 event pairs, 4 based on Foata normal form. 21/569 useless extension candidates. Maximal degree in co-relation 1697. Up to 122 conditions per place. [2021-03-26 05:16:56,050 INFO L132 encePairwiseOnDemand]: 55/62 looper letters, 21 selfloop transitions, 11 changer transitions 2/92 dead transitions. [2021-03-26 05:16:56,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 92 transitions, 828 flow [2021-03-26 05:16:56,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 452 transitions. [2021-03-26 05:16:56,051 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8100358422939068 [2021-03-26 05:16:56,051 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 452 transitions. [2021-03-26 05:16:56,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 452 transitions. [2021-03-26 05:16:56,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:56,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 452 transitions. [2021-03-26 05:16:56,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 9 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,053 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,053 INFO L185 Difference]: Start difference. First operand has 93 places, 75 transitions, 692 flow. Second operand 9 states and 452 transitions. [2021-03-26 05:16:56,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 92 transitions, 828 flow [2021-03-26 05:16:56,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 783 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-26 05:16:56,059 INFO L241 Difference]: Finished difference. Result has 100 places, 81 transitions, 725 flow [2021-03-26 05:16:56,059 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=725, PETRI_PLACES=100, PETRI_TRANSITIONS=81} [2021-03-26 05:16:56,059 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 66 predicate places. [2021-03-26 05:16:56,059 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:56,059 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 81 transitions, 725 flow [2021-03-26 05:16:56,060 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 81 transitions, 725 flow [2021-03-26 05:16:56,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 81 transitions, 725 flow [2021-03-26 05:16:56,084 INFO L129 PetriNetUnfolder]: 53/409 cut-off events. [2021-03-26 05:16:56,084 INFO L130 PetriNetUnfolder]: For 842/862 co-relation queries the response was YES. [2021-03-26 05:16:56,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 409 events. 53/409 cut-off events. For 842/862 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3162 event pairs, 1 based on Foata normal form. 8/408 useless extension candidates. Maximal degree in co-relation 1269. Up to 60 conditions per place. [2021-03-26 05:16:56,088 INFO L142 LiptonReduction]: Number of co-enabled transitions 526 [2021-03-26 05:16:56,153 INFO L154 LiptonReduction]: Checked pairs total: 111 [2021-03-26 05:16:56,154 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 05:16:56,154 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-03-26 05:16:56,154 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 81 transitions, 736 flow [2021-03-26 05:16:56,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,154 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:56,154 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:56,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 05:16:56,155 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:56,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:56,155 INFO L82 PathProgramCache]: Analyzing trace with hash 144906837, now seen corresponding path program 1 times [2021-03-26 05:16:56,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:56,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589553796] [2021-03-26 05:16:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:56,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:56,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:56,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:56,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:56,181 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 05:16:56,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589553796] [2021-03-26 05:16:56,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:56,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:16:56,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176913290] [2021-03-26 05:16:56,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:16:56,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:56,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:16:56,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:16:56,183 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 65 [2021-03-26 05:16:56,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 81 transitions, 736 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:56,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 65 [2021-03-26 05:16:56,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:56,315 INFO L129 PetriNetUnfolder]: 118/733 cut-off events. [2021-03-26 05:16:56,315 INFO L130 PetriNetUnfolder]: For 1849/1892 co-relation queries the response was YES. [2021-03-26 05:16:56,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 733 events. 118/733 cut-off events. For 1849/1892 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6557 event pairs, 13 based on Foata normal form. 41/753 useless extension candidates. Maximal degree in co-relation 2513. Up to 168 conditions per place. [2021-03-26 05:16:56,319 INFO L132 encePairwiseOnDemand]: 54/65 looper letters, 19 selfloop transitions, 19 changer transitions 4/98 dead transitions. [2021-03-26 05:16:56,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 98 transitions, 943 flow [2021-03-26 05:16:56,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 05:16:56,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 05:16:56,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 504 transitions. [2021-03-26 05:16:56,320 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7753846153846153 [2021-03-26 05:16:56,320 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 504 transitions. [2021-03-26 05:16:56,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 504 transitions. [2021-03-26 05:16:56,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:56,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 504 transitions. [2021-03-26 05:16:56,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 50.4) internal successors, (504), 10 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 65.0) internal successors, (715), 11 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,322 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 65.0) internal successors, (715), 11 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,322 INFO L185 Difference]: Start difference. First operand has 98 places, 81 transitions, 736 flow. Second operand 10 states and 504 transitions. [2021-03-26 05:16:56,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 98 transitions, 943 flow [2021-03-26 05:16:56,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 907 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-26 05:16:56,331 INFO L241 Difference]: Finished difference. Result has 108 places, 90 transitions, 837 flow [2021-03-26 05:16:56,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=837, PETRI_PLACES=108, PETRI_TRANSITIONS=90} [2021-03-26 05:16:56,332 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 74 predicate places. [2021-03-26 05:16:56,332 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:56,332 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 90 transitions, 837 flow [2021-03-26 05:16:56,332 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 90 transitions, 837 flow [2021-03-26 05:16:56,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 90 transitions, 837 flow [2021-03-26 05:16:56,369 INFO L129 PetriNetUnfolder]: 67/580 cut-off events. [2021-03-26 05:16:56,369 INFO L130 PetriNetUnfolder]: For 1334/1354 co-relation queries the response was YES. [2021-03-26 05:16:56,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1974 conditions, 580 events. 67/580 cut-off events. For 1334/1354 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5093 event pairs, 1 based on Foata normal form. 10/578 useless extension candidates. Maximal degree in co-relation 1878. Up to 84 conditions per place. [2021-03-26 05:16:56,373 INFO L142 LiptonReduction]: Number of co-enabled transitions 562 [2021-03-26 05:16:56,400 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-26 05:16:56,400 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 05:16:56,400 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-26 05:16:56,401 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 90 transitions, 847 flow [2021-03-26 05:16:56,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:56,401 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 05:16:56,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 05:16:56,401 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:56,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:56,401 INFO L82 PathProgramCache]: Analyzing trace with hash 630409158, now seen corresponding path program 1 times [2021-03-26 05:16:56,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:56,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675530595] [2021-03-26 05:16:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:56,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:56,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:56,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:56,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:56,427 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 05:16:56,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675530595] [2021-03-26 05:16:56,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:56,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:16:56,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902876058] [2021-03-26 05:16:56,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:16:56,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:56,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:16:56,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:16:56,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 67 [2021-03-26 05:16:56,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 90 transitions, 847 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:56,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 67 [2021-03-26 05:16:56,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:56,574 INFO L129 PetriNetUnfolder]: 105/774 cut-off events. [2021-03-26 05:16:56,574 INFO L130 PetriNetUnfolder]: For 2285/2398 co-relation queries the response was YES. [2021-03-26 05:16:56,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2935 conditions, 774 events. 105/774 cut-off events. For 2285/2398 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7382 event pairs, 16 based on Foata normal form. 59/810 useless extension candidates. Maximal degree in co-relation 2791. Up to 129 conditions per place. [2021-03-26 05:16:56,579 INFO L132 encePairwiseOnDemand]: 57/67 looper letters, 27 selfloop transitions, 21 changer transitions 4/108 dead transitions. [2021-03-26 05:16:56,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 108 transitions, 1090 flow [2021-03-26 05:16:56,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:56,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 457 transitions. [2021-03-26 05:16:56,580 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75787728026534 [2021-03-26 05:16:56,580 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 457 transitions. [2021-03-26 05:16:56,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 457 transitions. [2021-03-26 05:16:56,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:56,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 457 transitions. [2021-03-26 05:16:56,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.77777777777778) internal successors, (457), 9 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,582 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,582 INFO L185 Difference]: Start difference. First operand has 106 places, 90 transitions, 847 flow. Second operand 9 states and 457 transitions. [2021-03-26 05:16:56,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 108 transitions, 1090 flow [2021-03-26 05:16:56,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 108 transitions, 1047 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-26 05:16:56,593 INFO L241 Difference]: Finished difference. Result has 116 places, 97 transitions, 960 flow [2021-03-26 05:16:56,594 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=960, PETRI_PLACES=116, PETRI_TRANSITIONS=97} [2021-03-26 05:16:56,594 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 82 predicate places. [2021-03-26 05:16:56,594 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:56,594 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 97 transitions, 960 flow [2021-03-26 05:16:56,594 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 97 transitions, 960 flow [2021-03-26 05:16:56,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 97 transitions, 960 flow [2021-03-26 05:16:56,635 INFO L129 PetriNetUnfolder]: 65/639 cut-off events. [2021-03-26 05:16:56,635 INFO L130 PetriNetUnfolder]: For 1755/1778 co-relation queries the response was YES. [2021-03-26 05:16:56,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2331 conditions, 639 events. 65/639 cut-off events. For 1755/1778 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5999 event pairs, 1 based on Foata normal form. 12/642 useless extension candidates. Maximal degree in co-relation 2219. Up to 97 conditions per place. [2021-03-26 05:16:56,641 INFO L142 LiptonReduction]: Number of co-enabled transitions 610 [2021-03-26 05:16:56,644 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:16:56,644 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:56,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-26 05:16:56,644 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 97 transitions, 960 flow [2021-03-26 05:16:56,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,645 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:56,645 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 05:16:56,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 05:16:56,645 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:56,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:56,645 INFO L82 PathProgramCache]: Analyzing trace with hash -346991633, now seen corresponding path program 1 times [2021-03-26 05:16:56,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:56,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848483684] [2021-03-26 05:16:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:56,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:56,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:56,665 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 05:16:56,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848483684] [2021-03-26 05:16:56,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:56,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 05:16:56,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734399082] [2021-03-26 05:16:56,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:16:56,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:56,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:16:56,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:16:56,666 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 67 [2021-03-26 05:16:56,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 97 transitions, 960 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:56,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 67 [2021-03-26 05:16:56,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:56,773 INFO L129 PetriNetUnfolder]: 96/794 cut-off events. [2021-03-26 05:16:56,773 INFO L130 PetriNetUnfolder]: For 2558/2708 co-relation queries the response was YES. [2021-03-26 05:16:56,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3123 conditions, 794 events. 96/794 cut-off events. For 2558/2708 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 7749 event pairs, 21 based on Foata normal form. 77/848 useless extension candidates. Maximal degree in co-relation 2963. Up to 247 conditions per place. [2021-03-26 05:16:56,780 INFO L132 encePairwiseOnDemand]: 61/67 looper letters, 32 selfloop transitions, 17 changer transitions 0/105 dead transitions. [2021-03-26 05:16:56,780 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 105 transitions, 1122 flow [2021-03-26 05:16:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 05:16:56,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 05:16:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 402 transitions. [2021-03-26 05:16:56,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-26 05:16:56,781 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 402 transitions. [2021-03-26 05:16:56,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 402 transitions. [2021-03-26 05:16:56,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:56,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 402 transitions. [2021-03-26 05:16:56,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.25) internal successors, (402), 8 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,783 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,783 INFO L185 Difference]: Start difference. First operand has 114 places, 97 transitions, 960 flow. Second operand 8 states and 402 transitions. [2021-03-26 05:16:56,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 105 transitions, 1122 flow [2021-03-26 05:16:56,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 105 transitions, 1073 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-03-26 05:16:56,797 INFO L241 Difference]: Finished difference. Result has 118 places, 104 transitions, 1022 flow [2021-03-26 05:16:56,798 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1022, PETRI_PLACES=118, PETRI_TRANSITIONS=104} [2021-03-26 05:16:56,798 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 84 predicate places. [2021-03-26 05:16:56,798 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:56,798 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 104 transitions, 1022 flow [2021-03-26 05:16:56,798 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 104 transitions, 1022 flow [2021-03-26 05:16:56,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 104 transitions, 1022 flow [2021-03-26 05:16:56,838 INFO L129 PetriNetUnfolder]: 71/721 cut-off events. [2021-03-26 05:16:56,838 INFO L130 PetriNetUnfolder]: For 2163/2188 co-relation queries the response was YES. [2021-03-26 05:16:56,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2583 conditions, 721 events. 71/721 cut-off events. For 2163/2188 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7091 event pairs, 1 based on Foata normal form. 15/727 useless extension candidates. Maximal degree in co-relation 2381. Up to 111 conditions per place. [2021-03-26 05:16:56,844 INFO L142 LiptonReduction]: Number of co-enabled transitions 650 [2021-03-26 05:16:56,862 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 05:16:56,862 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:56,862 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-26 05:16:56,863 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 104 transitions, 1029 flow [2021-03-26 05:16:56,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:56,863 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 05:16:56,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 05:16:56,863 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:56,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:56,864 INFO L82 PathProgramCache]: Analyzing trace with hash 561125741, now seen corresponding path program 2 times [2021-03-26 05:16:56,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:56,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230839091] [2021-03-26 05:16:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:56,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:56,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:56,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:56,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:56,883 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 05:16:56,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230839091] [2021-03-26 05:16:56,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:56,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 05:16:56,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961292502] [2021-03-26 05:16:56,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:16:56,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:56,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:16:56,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:16:56,885 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 68 [2021-03-26 05:16:56,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 104 transitions, 1029 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:56,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:56,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 68 [2021-03-26 05:16:56,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:56,993 INFO L129 PetriNetUnfolder]: 96/790 cut-off events. [2021-03-26 05:16:56,993 INFO L130 PetriNetUnfolder]: For 2836/3034 co-relation queries the response was YES. [2021-03-26 05:16:56,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3115 conditions, 790 events. 96/790 cut-off events. For 2836/3034 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7697 event pairs, 21 based on Foata normal form. 103/870 useless extension candidates. Maximal degree in co-relation 2879. Up to 245 conditions per place. [2021-03-26 05:16:56,997 INFO L132 encePairwiseOnDemand]: 61/68 looper letters, 30 selfloop transitions, 18 changer transitions 0/104 dead transitions. [2021-03-26 05:16:56,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 104 transitions, 1125 flow [2021-03-26 05:16:56,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:16:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:16:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 354 transitions. [2021-03-26 05:16:56,998 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7436974789915967 [2021-03-26 05:16:56,998 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 354 transitions. [2021-03-26 05:16:56,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 354 transitions. [2021-03-26 05:16:56,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:56,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 354 transitions. [2021-03-26 05:16:57,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 50.57142857142857) internal successors, (354), 7 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,020 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 05:16:57,020 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 05:16:57,020 INFO L185 Difference]: Start difference. First operand has 118 places, 104 transitions, 1029 flow. Second operand 7 states and 354 transitions. [2021-03-26 05:16:57,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 104 transitions, 1125 flow [2021-03-26 05:16:57,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 104 transitions, 1080 flow, removed 18 selfloop flow, removed 1 redundant places. [2021-03-26 05:16:57,035 INFO L241 Difference]: Finished difference. Result has 124 places, 104 transitions, 1023 flow [2021-03-26 05:16:57,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1023, PETRI_PLACES=124, PETRI_TRANSITIONS=104} [2021-03-26 05:16:57,035 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 90 predicate places. [2021-03-26 05:16:57,035 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:57,035 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 104 transitions, 1023 flow [2021-03-26 05:16:57,035 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 104 transitions, 1023 flow [2021-03-26 05:16:57,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 104 transitions, 1023 flow [2021-03-26 05:16:57,076 INFO L129 PetriNetUnfolder]: 71/717 cut-off events. [2021-03-26 05:16:57,076 INFO L130 PetriNetUnfolder]: For 2091/2106 co-relation queries the response was YES. [2021-03-26 05:16:57,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2617 conditions, 717 events. 71/717 cut-off events. For 2091/2106 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7066 event pairs, 1 based on Foata normal form. 9/717 useless extension candidates. Maximal degree in co-relation 2398. Up to 111 conditions per place. [2021-03-26 05:16:57,082 INFO L142 LiptonReduction]: Number of co-enabled transitions 650 [2021-03-26 05:16:57,100 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 05:16:57,100 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:57,100 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-26 05:16:57,100 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 103 transitions, 1017 flow [2021-03-26 05:16:57,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,101 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:57,101 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 05:16:57,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 05:16:57,101 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:57,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:57,101 INFO L82 PathProgramCache]: Analyzing trace with hash 786523894, now seen corresponding path program 1 times [2021-03-26 05:16:57,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:57,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369188204] [2021-03-26 05:16:57,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:57,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:57,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:57,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,117 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 05:16:57,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369188204] [2021-03-26 05:16:57,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:57,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:16:57,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223580241] [2021-03-26 05:16:57,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 05:16:57,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:57,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 05:16:57,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 05:16:57,118 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 69 [2021-03-26 05:16:57,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 103 transitions, 1017 flow. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:57,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 69 [2021-03-26 05:16:57,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:57,209 INFO L129 PetriNetUnfolder]: 96/780 cut-off events. [2021-03-26 05:16:57,209 INFO L130 PetriNetUnfolder]: For 2728/2892 co-relation queries the response was YES. [2021-03-26 05:16:57,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3093 conditions, 780 events. 96/780 cut-off events. For 2728/2892 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7575 event pairs, 21 based on Foata normal form. 85/842 useless extension candidates. Maximal degree in co-relation 2848. Up to 249 conditions per place. [2021-03-26 05:16:57,213 INFO L132 encePairwiseOnDemand]: 63/69 looper letters, 29 selfloop transitions, 10 changer transitions 15/103 dead transitions. [2021-03-26 05:16:57,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 103 transitions, 1111 flow [2021-03-26 05:16:57,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 05:16:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 05:16:57,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 259 transitions. [2021-03-26 05:16:57,214 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7507246376811594 [2021-03-26 05:16:57,214 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 259 transitions. [2021-03-26 05:16:57,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 259 transitions. [2021-03-26 05:16:57,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:57,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 259 transitions. [2021-03-26 05:16:57,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.8) internal successors, (259), 5 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 05:16:57,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,215 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,215 INFO L185 Difference]: Start difference. First operand has 123 places, 103 transitions, 1017 flow. Second operand 5 states and 259 transitions. [2021-03-26 05:16:57,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 103 transitions, 1111 flow [2021-03-26 05:16:57,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 103 transitions, 1023 flow, removed 9 selfloop flow, removed 8 redundant places. [2021-03-26 05:16:57,228 INFO L241 Difference]: Finished difference. Result has 120 places, 88 transitions, 800 flow [2021-03-26 05:16:57,228 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=929, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=800, PETRI_PLACES=120, PETRI_TRANSITIONS=88} [2021-03-26 05:16:57,228 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 86 predicate places. [2021-03-26 05:16:57,228 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:57,228 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 88 transitions, 800 flow [2021-03-26 05:16:57,229 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 88 transitions, 800 flow [2021-03-26 05:16:57,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 88 transitions, 800 flow [2021-03-26 05:16:57,257 INFO L129 PetriNetUnfolder]: 50/559 cut-off events. [2021-03-26 05:16:57,258 INFO L130 PetriNetUnfolder]: For 1319/1329 co-relation queries the response was YES. [2021-03-26 05:16:57,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1947 conditions, 559 events. 50/559 cut-off events. For 1319/1329 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5064 event pairs, 1 based on Foata normal form. 7/555 useless extension candidates. Maximal degree in co-relation 1840. Up to 88 conditions per place. [2021-03-26 05:16:57,262 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-26 05:16:57,265 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:16:57,265 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:57,265 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 05:16:57,265 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 88 transitions, 800 flow [2021-03-26 05:16:57,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,265 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:57,266 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:57,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 05:16:57,266 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:57,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:57,266 INFO L82 PathProgramCache]: Analyzing trace with hash -326457118, now seen corresponding path program 2 times [2021-03-26 05:16:57,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:57,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250464990] [2021-03-26 05:16:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:57,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:57,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:57,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:57,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,290 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 05:16:57,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250464990] [2021-03-26 05:16:57,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:57,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:16:57,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043172171] [2021-03-26 05:16:57,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:16:57,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:57,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:16:57,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:16:57,291 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 69 [2021-03-26 05:16:57,291 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 88 transitions, 800 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,291 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:57,291 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 69 [2021-03-26 05:16:57,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:57,407 INFO L129 PetriNetUnfolder]: 69/666 cut-off events. [2021-03-26 05:16:57,407 INFO L130 PetriNetUnfolder]: For 1778/1848 co-relation queries the response was YES. [2021-03-26 05:16:57,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2531 conditions, 666 events. 69/666 cut-off events. For 1778/1848 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6321 event pairs, 4 based on Foata normal form. 45/693 useless extension candidates. Maximal degree in co-relation 2376. Up to 176 conditions per place. [2021-03-26 05:16:57,411 INFO L132 encePairwiseOnDemand]: 59/69 looper letters, 27 selfloop transitions, 21 changer transitions 0/97 dead transitions. [2021-03-26 05:16:57,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 97 transitions, 962 flow [2021-03-26 05:16:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 05:16:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 05:16:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 499 transitions. [2021-03-26 05:16:57,412 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7231884057971014 [2021-03-26 05:16:57,412 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 499 transitions. [2021-03-26 05:16:57,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 499 transitions. [2021-03-26 05:16:57,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:57,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 499 transitions. [2021-03-26 05:16:57,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 69.0) internal successors, (759), 11 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,414 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 69.0) internal successors, (759), 11 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,414 INFO L185 Difference]: Start difference. First operand has 112 places, 88 transitions, 800 flow. Second operand 10 states and 499 transitions. [2021-03-26 05:16:57,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 97 transitions, 962 flow [2021-03-26 05:16:57,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 97 transitions, 896 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-26 05:16:57,422 INFO L241 Difference]: Finished difference. Result has 112 places, 95 transitions, 850 flow [2021-03-26 05:16:57,422 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=850, PETRI_PLACES=112, PETRI_TRANSITIONS=95} [2021-03-26 05:16:57,422 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 78 predicate places. [2021-03-26 05:16:57,423 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:57,423 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 95 transitions, 850 flow [2021-03-26 05:16:57,423 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 95 transitions, 850 flow [2021-03-26 05:16:57,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 95 transitions, 850 flow [2021-03-26 05:16:57,456 INFO L129 PetriNetUnfolder]: 63/655 cut-off events. [2021-03-26 05:16:57,456 INFO L130 PetriNetUnfolder]: For 1465/1476 co-relation queries the response was YES. [2021-03-26 05:16:57,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2174 conditions, 655 events. 63/655 cut-off events. For 1465/1476 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6288 event pairs, 1 based on Foata normal form. 8/648 useless extension candidates. Maximal degree in co-relation 1994. Up to 105 conditions per place. [2021-03-26 05:16:57,461 INFO L142 LiptonReduction]: Number of co-enabled transitions 586 [2021-03-26 05:16:57,477 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-26 05:16:57,477 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:57,478 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-26 05:16:57,478 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 95 transitions, 859 flow [2021-03-26 05:16:57,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,478 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:57,478 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 05:16:57,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 05:16:57,478 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:57,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:57,479 INFO L82 PathProgramCache]: Analyzing trace with hash 636060058, now seen corresponding path program 3 times [2021-03-26 05:16:57,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:57,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617329147] [2021-03-26 05:16:57,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:57,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:57,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:57,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:57,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,503 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 05:16:57,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617329147] [2021-03-26 05:16:57,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:57,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:16:57,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375132355] [2021-03-26 05:16:57,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:16:57,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:57,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:16:57,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:16:57,504 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 70 [2021-03-26 05:16:57,504 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 95 transitions, 859 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,504 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:57,504 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 70 [2021-03-26 05:16:57,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:57,633 INFO L129 PetriNetUnfolder]: 66/668 cut-off events. [2021-03-26 05:16:57,633 INFO L130 PetriNetUnfolder]: For 1772/1854 co-relation queries the response was YES. [2021-03-26 05:16:57,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2494 conditions, 668 events. 66/668 cut-off events. For 1772/1854 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6417 event pairs, 4 based on Foata normal form. 57/707 useless extension candidates. Maximal degree in co-relation 2274. Up to 159 conditions per place. [2021-03-26 05:16:57,636 INFO L132 encePairwiseOnDemand]: 59/70 looper letters, 24 selfloop transitions, 24 changer transitions 0/97 dead transitions. [2021-03-26 05:16:57,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 97 transitions, 964 flow [2021-03-26 05:16:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:16:57,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:16:57,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 453 transitions. [2021-03-26 05:16:57,637 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.719047619047619 [2021-03-26 05:16:57,637 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 453 transitions. [2021-03-26 05:16:57,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 453 transitions. [2021-03-26 05:16:57,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:57,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 453 transitions. [2021-03-26 05:16:57,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.333333333333336) internal successors, (453), 9 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,639 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,639 INFO L185 Difference]: Start difference. First operand has 112 places, 95 transitions, 859 flow. Second operand 9 states and 453 transitions. [2021-03-26 05:16:57,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 97 transitions, 964 flow [2021-03-26 05:16:57,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 97 transitions, 907 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-03-26 05:16:57,649 INFO L241 Difference]: Finished difference. Result has 118 places, 95 transitions, 853 flow [2021-03-26 05:16:57,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=853, PETRI_PLACES=118, PETRI_TRANSITIONS=95} [2021-03-26 05:16:57,649 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 84 predicate places. [2021-03-26 05:16:57,649 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:57,649 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 95 transitions, 853 flow [2021-03-26 05:16:57,649 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 95 transitions, 853 flow [2021-03-26 05:16:57,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 95 transitions, 853 flow [2021-03-26 05:16:57,682 INFO L129 PetriNetUnfolder]: 60/657 cut-off events. [2021-03-26 05:16:57,682 INFO L130 PetriNetUnfolder]: For 1371/1379 co-relation queries the response was YES. [2021-03-26 05:16:57,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2225 conditions, 657 events. 60/657 cut-off events. For 1371/1379 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6366 event pairs, 1 based on Foata normal form. 5/647 useless extension candidates. Maximal degree in co-relation 2018. Up to 105 conditions per place. [2021-03-26 05:16:57,687 INFO L142 LiptonReduction]: Number of co-enabled transitions 586 [2021-03-26 05:16:57,705 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 05:16:57,705 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:57,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-26 05:16:57,706 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 94 transitions, 849 flow [2021-03-26 05:16:57,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,706 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:57,706 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 05:16:57,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 05:16:57,706 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:57,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1283426589, now seen corresponding path program 1 times [2021-03-26 05:16:57,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:57,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74928918] [2021-03-26 05:16:57,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:57,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 05:16:57,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:57,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:57,725 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 05:16:57,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74928918] [2021-03-26 05:16:57,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:57,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 05:16:57,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650015912] [2021-03-26 05:16:57,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:16:57,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:57,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:16:57,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:16:57,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 71 [2021-03-26 05:16:57,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 94 transitions, 849 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:57,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 71 [2021-03-26 05:16:57,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:57,823 INFO L129 PetriNetUnfolder]: 66/657 cut-off events. [2021-03-26 05:16:57,823 INFO L130 PetriNetUnfolder]: For 1752/1828 co-relation queries the response was YES. [2021-03-26 05:16:57,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 657 events. 66/657 cut-off events. For 1752/1828 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6260 event pairs, 4 based on Foata normal form. 51/690 useless extension candidates. Maximal degree in co-relation 2244. Up to 182 conditions per place. [2021-03-26 05:16:57,826 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 24 selfloop transitions, 14 changer transitions 23/95 dead transitions. [2021-03-26 05:16:57,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 95 transitions, 946 flow [2021-03-26 05:16:57,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:16:57,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:16:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 356 transitions. [2021-03-26 05:16:57,827 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.716297786720322 [2021-03-26 05:16:57,827 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 356 transitions. [2021-03-26 05:16:57,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 356 transitions. [2021-03-26 05:16:57,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:57,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 356 transitions. [2021-03-26 05:16:57,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 50.857142857142854) internal successors, (356), 7 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,829 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,829 INFO L185 Difference]: Start difference. First operand has 117 places, 94 transitions, 849 flow. Second operand 7 states and 356 transitions. [2021-03-26 05:16:57,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 95 transitions, 946 flow [2021-03-26 05:16:57,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 95 transitions, 837 flow, removed 10 selfloop flow, removed 11 redundant places. [2021-03-26 05:16:57,837 INFO L241 Difference]: Finished difference. Result has 113 places, 71 transitions, 552 flow [2021-03-26 05:16:57,837 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=552, PETRI_PLACES=113, PETRI_TRANSITIONS=71} [2021-03-26 05:16:57,837 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 79 predicate places. [2021-03-26 05:16:57,837 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:57,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 71 transitions, 552 flow [2021-03-26 05:16:57,838 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 71 transitions, 552 flow [2021-03-26 05:16:57,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 71 transitions, 552 flow [2021-03-26 05:16:57,859 INFO L129 PetriNetUnfolder]: 37/463 cut-off events. [2021-03-26 05:16:57,859 INFO L130 PetriNetUnfolder]: For 781/788 co-relation queries the response was YES. [2021-03-26 05:16:57,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 463 events. 37/463 cut-off events. For 781/788 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4104 event pairs, 1 based on Foata normal form. 4/457 useless extension candidates. Maximal degree in co-relation 1302. Up to 72 conditions per place. [2021-03-26 05:16:57,862 INFO L142 LiptonReduction]: Number of co-enabled transitions 390 [2021-03-26 05:16:57,973 INFO L154 LiptonReduction]: Checked pairs total: 41 [2021-03-26 05:16:57,974 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 05:16:57,974 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-03-26 05:16:57,974 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 70 transitions, 574 flow [2021-03-26 05:16:57,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,974 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:57,974 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:57,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 05:16:57,975 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:57,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:57,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1837842358, now seen corresponding path program 3 times [2021-03-26 05:16:57,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:57,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837799775] [2021-03-26 05:16:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:57,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:57,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:57,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:58,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:58,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:58,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:58,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:16:58,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:58,028 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 05:16:58,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837799775] [2021-03-26 05:16:58,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:58,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:16:58,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467045146] [2021-03-26 05:16:58,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:16:58,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:58,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:16:58,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:16:58,029 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 78 [2021-03-26 05:16:58,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 70 transitions, 574 flow. Second operand has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:58,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 78 [2021-03-26 05:16:58,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:58,153 INFO L129 PetriNetUnfolder]: 39/366 cut-off events. [2021-03-26 05:16:58,153 INFO L130 PetriNetUnfolder]: For 787/835 co-relation queries the response was YES. [2021-03-26 05:16:58,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 366 events. 39/366 cut-off events. For 787/835 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2913 event pairs, 8 based on Foata normal form. 1/351 useless extension candidates. Maximal degree in co-relation 1238. Up to 130 conditions per place. [2021-03-26 05:16:58,155 INFO L132 encePairwiseOnDemand]: 71/78 looper letters, 14 selfloop transitions, 5 changer transitions 6/68 dead transitions. [2021-03-26 05:16:58,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 68 transitions, 590 flow [2021-03-26 05:16:58,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 05:16:58,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 05:16:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 372 transitions. [2021-03-26 05:16:58,156 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5961538461538461 [2021-03-26 05:16:58,156 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 372 transitions. [2021-03-26 05:16:58,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 372 transitions. [2021-03-26 05:16:58,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:58,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 372 transitions. [2021-03-26 05:16:58,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 46.5) internal successors, (372), 8 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,157 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,158 INFO L185 Difference]: Start difference. First operand has 100 places, 70 transitions, 574 flow. Second operand 8 states and 372 transitions. [2021-03-26 05:16:58,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 68 transitions, 590 flow [2021-03-26 05:16:58,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 68 transitions, 495 flow, removed 17 selfloop flow, removed 20 redundant places. [2021-03-26 05:16:58,161 INFO L241 Difference]: Finished difference. Result has 86 places, 60 transitions, 387 flow [2021-03-26 05:16:58,161 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=387, PETRI_PLACES=86, PETRI_TRANSITIONS=60} [2021-03-26 05:16:58,161 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 52 predicate places. [2021-03-26 05:16:58,162 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:58,162 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 60 transitions, 387 flow [2021-03-26 05:16:58,164 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 60 transitions, 387 flow [2021-03-26 05:16:58,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 60 transitions, 387 flow [2021-03-26 05:16:58,175 INFO L129 PetriNetUnfolder]: 25/305 cut-off events. [2021-03-26 05:16:58,175 INFO L130 PetriNetUnfolder]: For 250/250 co-relation queries the response was YES. [2021-03-26 05:16:58,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 305 events. 25/305 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2385 event pairs, 1 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 635. Up to 52 conditions per place. [2021-03-26 05:16:58,178 INFO L142 LiptonReduction]: Number of co-enabled transitions 276 [2021-03-26 05:16:58,227 INFO L154 LiptonReduction]: Checked pairs total: 195 [2021-03-26 05:16:58,228 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:58,228 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-26 05:16:58,229 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 59 transitions, 383 flow [2021-03-26 05:16:58,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,229 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:58,230 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 05:16:58,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 05:16:58,230 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:58,230 INFO L82 PathProgramCache]: Analyzing trace with hash 2031332898, now seen corresponding path program 1 times [2021-03-26 05:16:58,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:58,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008714455] [2021-03-26 05:16:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:58,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:58,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:58,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:58,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:16:58,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:58,266 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 05:16:58,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008714455] [2021-03-26 05:16:58,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:58,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:16:58,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183884792] [2021-03-26 05:16:58,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 05:16:58,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:58,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 05:16:58,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 05:16:58,267 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 79 [2021-03-26 05:16:58,268 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 59 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:58,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 79 [2021-03-26 05:16:58,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:58,326 INFO L129 PetriNetUnfolder]: 18/188 cut-off events. [2021-03-26 05:16:58,326 INFO L130 PetriNetUnfolder]: For 318/342 co-relation queries the response was YES. [2021-03-26 05:16:58,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 188 events. 18/188 cut-off events. For 318/342 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1178 event pairs, 1 based on Foata normal form. 13/195 useless extension candidates. Maximal degree in co-relation 474. Up to 51 conditions per place. [2021-03-26 05:16:58,327 INFO L132 encePairwiseOnDemand]: 71/79 looper letters, 6 selfloop transitions, 3 changer transitions 15/65 dead transitions. [2021-03-26 05:16:58,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 65 transitions, 454 flow [2021-03-26 05:16:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 05:16:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 05:16:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 287 transitions. [2021-03-26 05:16:58,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6054852320675106 [2021-03-26 05:16:58,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 287 transitions. [2021-03-26 05:16:58,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 287 transitions. [2021-03-26 05:16:58,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:58,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 287 transitions. [2021-03-26 05:16:58,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 47.833333333333336) internal successors, (287), 6 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,330 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,330 INFO L185 Difference]: Start difference. First operand has 76 places, 59 transitions, 383 flow. Second operand 6 states and 287 transitions. [2021-03-26 05:16:58,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 65 transitions, 454 flow [2021-03-26 05:16:58,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 65 transitions, 391 flow, removed 11 selfloop flow, removed 14 redundant places. [2021-03-26 05:16:58,332 INFO L241 Difference]: Finished difference. Result has 67 places, 50 transitions, 291 flow [2021-03-26 05:16:58,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2021-03-26 05:16:58,333 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 33 predicate places. [2021-03-26 05:16:58,333 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:58,333 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 50 transitions, 291 flow [2021-03-26 05:16:58,333 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 50 transitions, 291 flow [2021-03-26 05:16:58,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 50 transitions, 291 flow [2021-03-26 05:16:58,339 INFO L129 PetriNetUnfolder]: 12/146 cut-off events. [2021-03-26 05:16:58,340 INFO L130 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2021-03-26 05:16:58,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 146 events. 12/146 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 857 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 307. Up to 33 conditions per place. [2021-03-26 05:16:58,340 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 05:16:58,588 INFO L154 LiptonReduction]: Checked pairs total: 90 [2021-03-26 05:16:58,588 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 05:16:58,588 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 255 [2021-03-26 05:16:58,589 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 48 transitions, 295 flow [2021-03-26 05:16:58,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,589 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:58,589 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 05:16:58,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 05:16:58,589 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:58,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:58,590 INFO L82 PathProgramCache]: Analyzing trace with hash -410916277, now seen corresponding path program 1 times [2021-03-26 05:16:58,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:58,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661000496] [2021-03-26 05:16:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:58,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:58,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:58,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:58,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:58,634 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 05:16:58,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:16:58,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:58,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:58,642 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 05:16:58,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661000496] [2021-03-26 05:16:58,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:58,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:16:58,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822245568] [2021-03-26 05:16:58,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:16:58,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:58,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:16:58,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:16:58,644 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 89 [2021-03-26 05:16:58,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 295 flow. Second operand has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,644 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:58,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 89 [2021-03-26 05:16:58,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:58,697 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 05:16:58,697 INFO L130 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2021-03-26 05:16:58,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 18 events. 0/18 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 7/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 05:16:58,697 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2021-03-26 05:16:58,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 16 transitions, 98 flow [2021-03-26 05:16:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:16:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:16:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 319 transitions. [2021-03-26 05:16:58,698 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5120385232744783 [2021-03-26 05:16:58,698 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 319 transitions. [2021-03-26 05:16:58,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 319 transitions. [2021-03-26 05:16:58,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:58,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 319 transitions. [2021-03-26 05:16:58,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 45.57142857142857) internal successors, (319), 7 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,700 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,700 INFO L185 Difference]: Start difference. First operand has 61 places, 48 transitions, 295 flow. Second operand 7 states and 319 transitions. [2021-03-26 05:16:58,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 16 transitions, 98 flow [2021-03-26 05:16:58,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 16 transitions, 61 flow, removed 0 selfloop flow, removed 15 redundant places. [2021-03-26 05:16:58,700 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-03-26 05:16:58,700 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-03-26 05:16:58,701 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2021-03-26 05:16:58,701 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:58,701 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-26 05:16:58,701 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-26 05:16:58,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 05:16:58,701 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 05:16:58,701 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 05:16:58,701 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 05:16:58,701 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 05:16:58,701 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:16:58,701 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:58,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 0 [2021-03-26 05:16:58,702 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 05:16:58,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:58,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 05:16:58,705 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 05:16:58 BasicIcfg [2021-03-26 05:16:58,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 05:16:58,705 INFO L168 Benchmark]: Toolchain (without parser) took 5754.91 ms. Allocated memory was 346.0 MB in the beginning and 536.9 MB in the end (delta: 190.8 MB). Free memory was 326.4 MB in the beginning and 413.8 MB in the end (delta: -87.5 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.0 GB. [2021-03-26 05:16:58,705 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 346.0 MB. Free memory is still 327.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 05:16:58,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.82 ms. Allocated memory is still 346.0 MB. Free memory was 326.2 MB in the beginning and 324.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 05:16:58,705 INFO L168 Benchmark]: Boogie Preprocessor took 15.84 ms. Allocated memory is still 346.0 MB. Free memory was 324.8 MB in the beginning and 323.9 MB in the end (delta: 937.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 05:16:58,706 INFO L168 Benchmark]: RCFGBuilder took 213.27 ms. Allocated memory is still 346.0 MB. Free memory was 323.8 MB in the beginning and 311.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-26 05:16:58,706 INFO L168 Benchmark]: TraceAbstraction took 5498.10 ms. Allocated memory was 346.0 MB in the beginning and 536.9 MB in the end (delta: 190.8 MB). Free memory was 311.2 MB in the beginning and 413.8 MB in the end (delta: -102.6 MB). Peak memory consumption was 90.1 MB. Max. memory is 16.0 GB. [2021-03-26 05:16:58,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 346.0 MB. Free memory is still 327.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.82 ms. Allocated memory is still 346.0 MB. Free memory was 326.2 MB in the beginning and 324.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.84 ms. Allocated memory is still 346.0 MB. Free memory was 324.8 MB in the beginning and 323.9 MB in the end (delta: 937.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 213.27 ms. Allocated memory is still 346.0 MB. Free memory was 323.8 MB in the beginning and 311.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5498.10 ms. Allocated memory was 346.0 MB in the beginning and 536.9 MB in the end (delta: 190.8 MB). Free memory was 311.2 MB in the beginning and 413.8 MB in the end (delta: -102.6 MB). Peak memory consumption was 90.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 315.5ms, 46 PlacesBefore, 34 PlacesAfterwards, 36 TransitionsBefore, 24 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 992 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 434, positive: 362, positive conditional: 362, positive unconditional: 0, negative: 72, negative conditional: 72, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 302, positive: 269, positive conditional: 0, positive unconditional: 269, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 302, positive: 269, positive conditional: 0, positive unconditional: 269, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 302, positive: 263, positive conditional: 0, positive unconditional: 263, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 434, positive: 93, positive conditional: 93, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 302, unknown conditional: 302, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 66, Positive conditional cache size: 66, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.7ms, 40 PlacesBefore, 37 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 702 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 269, positive: 212, positive conditional: 212, positive unconditional: 0, negative: 57, negative conditional: 57, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, positive: 56, positive conditional: 22, positive unconditional: 34, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 60, positive: 56, positive conditional: 22, positive unconditional: 34, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 60, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 8, negative conditional: 7, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 269, positive: 156, positive conditional: 156, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 60, unknown conditional: 60, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 109, Positive conditional cache size: 109, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 122.2ms, 50 PlacesBefore, 50 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 457 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 249, positive: 221, positive conditional: 221, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 55, positive: 49, positive conditional: 28, positive unconditional: 21, negative: 6, negative conditional: 3, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 55, positive: 49, positive conditional: 28, positive unconditional: 21, negative: 6, negative conditional: 3, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 55, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 7, positive conditional: 4, positive unconditional: 3, negative: 6, negative conditional: 3, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 43, positive: 26, positive conditional: 11, positive unconditional: 15, negative: 17, negative conditional: 10, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 249, positive: 172, positive conditional: 172, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 55, unknown conditional: 55, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 172, Positive cache size: 153, Positive conditional cache size: 153, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.5ms, 53 PlacesBefore, 53 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 354 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 252, positive: 229, positive conditional: 229, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 23, positive conditional: 9, positive unconditional: 14, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, positive: 23, positive conditional: 9, positive unconditional: 14, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 252, positive: 206, positive conditional: 206, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 24, unknown conditional: 24, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 146, Positive conditional cache size: 146, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.3ms, 65 PlacesBefore, 65 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 184 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 70, positive conditional: 70, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 80, positive: 60, positive conditional: 60, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 156, Positive conditional cache size: 156, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80.0ms, 68 PlacesBefore, 68 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 442 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 176 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 108, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 8, negative conditional: 8, 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: 10, positive unconditional: 6, 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: 10, positive unconditional: 6, 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: 108, positive: 84, positive conditional: 84, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 187, Positive cache size: 168, Positive conditional cache size: 168, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.7ms, 78 PlacesBefore, 78 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 532 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 4, negative conditional: 4, 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: 20, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 187, Positive cache size: 168, Positive conditional cache size: 168, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.4ms, 85 PlacesBefore, 85 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 526 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 4, negative conditional: 4, 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: 20, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 187, Positive cache size: 168, Positive conditional cache size: 168, Positive unconditional cache size: 0, Negative cache size: 19, Negative conditional cache size: 19, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.8ms, 91 PlacesBefore, 91 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 163 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 3, positive unconditional: 2, 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: 5, positive: 5, positive conditional: 3, positive unconditional: 2, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 53, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 142, Positive conditional cache size: 142, Positive unconditional cache size: 0, Negative cache size: 16, Negative conditional cache size: 16, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.8ms, 93 PlacesBefore, 93 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 153 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 63, positive conditional: 63, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 73, positive: 56, positive conditional: 56, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 162, Positive cache size: 146, Positive conditional cache size: 146, Positive unconditional cache size: 0, Negative cache size: 16, Negative conditional cache size: 16, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 94.0ms, 100 PlacesBefore, 98 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 526 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 111 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, positive: 91, positive conditional: 91, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, positive: 32, positive conditional: 22, positive unconditional: 10, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, positive: 32, positive conditional: 22, positive unconditional: 10, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 96, positive: 59, positive conditional: 59, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 34, unknown conditional: 34, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 169, Positive conditional cache size: 169, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.0ms, 108 PlacesBefore, 106 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 562 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, 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: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 10, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 172, Positive cache size: 160, Positive conditional cache size: 160, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.0ms, 116 PlacesBefore, 114 PlacesAfterwards, 97 TransitionsBefore, 97 TransitionsAfterwards, 610 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): 172, Positive cache size: 160, Positive conditional cache size: 160, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.1ms, 118 PlacesBefore, 118 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 650 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 164, Positive conditional cache size: 164, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.5ms, 124 PlacesBefore, 123 PlacesAfterwards, 104 TransitionsBefore, 103 TransitionsAfterwards, 650 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 102, Positive conditional cache size: 102, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.1ms, 120 PlacesBefore, 112 PlacesAfterwards, 88 TransitionsBefore, 88 TransitionsAfterwards, 516 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): 114, Positive cache size: 102, Positive conditional cache size: 102, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.6ms, 112 PlacesBefore, 112 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 586 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 107, Positive conditional cache size: 107, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.5ms, 118 PlacesBefore, 117 PlacesAfterwards, 95 TransitionsBefore, 94 TransitionsAfterwards, 586 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 82, Positive conditional cache size: 82, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 135.9ms, 113 PlacesBefore, 100 PlacesAfterwards, 71 TransitionsBefore, 70 TransitionsAfterwards, 390 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 41 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 41, positive conditional: 41, 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: 32, positive: 32, positive conditional: 27, 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: 32, positive: 32, positive conditional: 27, 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: 32, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 41, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 60, Positive conditional cache size: 60, 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: 64.0ms, 86 PlacesBefore, 76 PlacesAfterwards, 60 TransitionsBefore, 59 TransitionsAfterwards, 276 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 195 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 132, positive conditional: 132, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 29, positive conditional: 24, positive unconditional: 5, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32, positive: 29, positive conditional: 24, positive unconditional: 5, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 32, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 144, positive: 103, positive conditional: 103, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 75, Positive conditional cache size: 75, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 255.1ms, 67 PlacesBefore, 61 PlacesAfterwards, 50 TransitionsBefore, 48 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 90, positive conditional: 90, 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: 14, positive: 14, positive conditional: 12, positive unconditional: 2, 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: 14, positive: 14, positive conditional: 12, positive unconditional: 2, 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: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, positive: 76, positive conditional: 76, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 8, Positive conditional cache size: 8, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4ms, 32 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): 9, Positive cache size: 8, Positive conditional cache size: 8, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - PositiveResult [Line: 71]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5378.8ms, OverallIterations: 21, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2544.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 379.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 154 SDtfs, 331 SDslu, 91 SDs, 0 SdLazy, 1512 SolverSat, 186 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 567.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 900.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1029occurred in iteration=13, InterpolantAutomatonStates: 164, 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: 19.8ms SsaConstructionTime, 80.8ms SatisfiabilityAnalysisTime, 694.1ms InterpolantComputationTime, 435 NumberOfCodeBlocks, 435 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 414 ConstructedInterpolants, 0 QuantifiedInterpolants, 1496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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...