/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 20:35:48,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 20:35:48,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 20:35:48,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 20:35:48,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 20:35:48,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 20:35:48,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 20:35:48,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 20:35:48,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 20:35:48,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 20:35:48,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 20:35:48,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 20:35:48,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 20:35:48,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 20:35:48,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 20:35:48,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 20:35:48,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 20:35:48,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 20:35:48,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 20:35:48,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 20:35:48,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 20:35:48,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 20:35:48,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 20:35:48,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 20:35:48,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 20:35:48,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 20:35:48,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 20:35:48,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 20:35:48,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 20:35:48,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 20:35:48,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 20:35:48,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 20:35:48,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 20:35:48,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 20:35:48,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 20:35:48,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 20:35:48,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 20:35:48,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 20:35:48,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 20:35:48,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 20:35:48,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 20:35:48,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-06-11 20:35:48,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 20:35:48,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 20:35:48,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 20:35:48,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 20:35:48,856 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 20:35:48,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 20:35:48,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 20:35:48,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 20:35:48,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 20:35:48,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 20:35:48,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 20:35:48,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 20:35:48,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 20:35:48,857 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 20:35:48,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 20:35:48,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 20:35:48,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 20:35:48,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 20:35:48,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 20:35:48,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 20:35:48,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 20:35:48,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 20:35:48,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 20:35:48,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 20:35:48,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 20:35:48,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 20:35:48,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 20:35:48,865 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 20:35:48,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 20:35:48,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 20:35:48,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 20:35:49,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 20:35:49,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 20:35:49,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 20:35:49,156 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-11 20:35:49,157 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-11 20:35:49,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl [2021-06-11 20:35:49,172 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl' [2021-06-11 20:35:49,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 20:35:49,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-11 20:35:49,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 20:35:49,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 20:35:49,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 20:35:49,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/1) ... [2021-06-11 20:35:49,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/1) ... [2021-06-11 20:35:49,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 20:35:49,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 20:35:49,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 20:35:49,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 20:35:49,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/1) ... [2021-06-11 20:35:49,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/1) ... [2021-06-11 20:35:49,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/1) ... [2021-06-11 20:35:49,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/1) ... [2021-06-11 20:35:49,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/1) ... [2021-06-11 20:35:49,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/1) ... [2021-06-11 20:35:49,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/1) ... [2021-06-11 20:35:49,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 20:35:49,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 20:35:49,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 20:35:49,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 20:35:49,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (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 [2021-06-11 20:35:49,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-11 20:35:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-11 20:35:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-11 20:35:49,302 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-11 20:35:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-11 20:35:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-11 20:35:49,303 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-11 20:35:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 20:35:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 20:35:49,303 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-11 20:35:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-11 20:35:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-11 20:35:49,304 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 20:35:49,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 20:35:49,434 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-11 20:35:49,435 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 08:35:49 BoogieIcfgContainer [2021-06-11 20:35:49,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 20:35:49,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 20:35:49,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 20:35:49,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 20:35:49,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 08:35:49" (1/2) ... [2021-06-11 20:35:49,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce73473 and model type lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 08:35:49, skipping insertion in model container [2021-06-11 20:35:49,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 08:35:49" (2/2) ... [2021-06-11 20:35:49,440 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.wvr.bpl [2021-06-11 20:35:49,444 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 20:35:49,446 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 20:35:49,447 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 20:35:49,473 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-11 20:35:49,486 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 20:35:49,517 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 20:35:49,518 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 20:35:49,518 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 20:35:49,518 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 20:35:49,518 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 20:35:49,518 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 20:35:49,518 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 20:35:49,518 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 20:35:49,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 106 flow [2021-06-11 20:35:49,570 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-06-11 20:35:49,570 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 20:35:49,571 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. [2021-06-11 20:35:49,571 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 106 flow [2021-06-11 20:35:49,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 90 flow [2021-06-11 20:35:49,593 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:49,621 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 90 flow [2021-06-11 20:35:49,624 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 90 flow [2021-06-11 20:35:49,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 90 flow [2021-06-11 20:35:49,653 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-06-11 20:35:49,654 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 20:35:49,654 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. [2021-06-11 20:35:49,656 INFO L151 LiptonReduction]: Number of co-enabled transitions 412 [2021-06-11 20:35:49,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:49,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:49,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:49,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:49,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:49,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:49,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:49,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:49,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:49,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:49,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:49,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:49,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:49,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:50,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:50,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:50,106 INFO L163 LiptonReduction]: Checked pairs total: 1232 [2021-06-11 20:35:50,106 INFO L165 LiptonReduction]: Total number of compositions: 13 [2021-06-11 20:35:50,111 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 519 [2021-06-11 20:35:50,141 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-06-11 20:35:50,142 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 20:35:50,142 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:50,143 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] [2021-06-11 20:35:50,143 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:50,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:50,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1841123788, now seen corresponding path program 1 times [2021-06-11 20:35:50,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:50,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009788096] [2021-06-11 20:35:50,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:50,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:50,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:50,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:50,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:50,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:50,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009788096] [2021-06-11 20:35:50,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:50,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:50,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601360491] [2021-06-11 20:35:50,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:50,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:50,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:50,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:50,340 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 54 [2021-06-11 20:35:50,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 64 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) [2021-06-11 20:35:50,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:50,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 54 [2021-06-11 20:35:50,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:50,474 INFO L129 PetriNetUnfolder]: 15/88 cut-off events. [2021-06-11 20:35:50,474 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-06-11 20:35:50,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 88 events. 15/88 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. 1/89 useless extension candidates. Maximal degree in co-relation 130. Up to 23 conditions per place. [2021-06-11 20:35:50,477 INFO L132 encePairwiseOnDemand]: 47/54 looper letters, 12 selfloop transitions, 11 changer transitions 2/41 dead transitions. [2021-06-11 20:35:50,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 150 flow [2021-06-11 20:35:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:50,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 386 transitions. [2021-06-11 20:35:50,487 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7942386831275721 [2021-06-11 20:35:50,487 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 386 transitions. [2021-06-11 20:35:50,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 386 transitions. [2021-06-11 20:35:50,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:50,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 386 transitions. [2021-06-11 20:35:50,493 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) [2021-06-11 20:35:50,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,499 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,500 INFO L185 Difference]: Start difference. First operand has 33 places, 23 transitions, 64 flow. Second operand 9 states and 386 transitions. [2021-06-11 20:35:50,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 150 flow [2021-06-11 20:35:50,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 138 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-11 20:35:50,505 INFO L241 Difference]: Finished difference. Result has 39 places, 33 transitions, 117 flow [2021-06-11 20:35:50,506 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=117, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2021-06-11 20:35:50,507 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2021-06-11 20:35:50,507 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:50,507 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 33 transitions, 117 flow [2021-06-11 20:35:50,508 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 33 transitions, 117 flow [2021-06-11 20:35:50,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 33 transitions, 117 flow [2021-06-11 20:35:50,513 INFO L129 PetriNetUnfolder]: 4/57 cut-off events. [2021-06-11 20:35:50,513 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 20:35:50,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 57 events. 4/57 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. 0/56 useless extension candidates. Maximal degree in co-relation 87. Up to 9 conditions per place. [2021-06-11 20:35:50,514 INFO L151 LiptonReduction]: Number of co-enabled transitions 248 [2021-06-11 20:35:50,525 INFO L163 LiptonReduction]: Checked pairs total: 227 [2021-06-11 20:35:50,525 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:50,525 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-06-11 20:35:50,526 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 117 flow [2021-06-11 20:35:50,527 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) [2021-06-11 20:35:50,527 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:50,527 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] [2021-06-11 20:35:50,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 20:35:50,528 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:50,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:50,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1540002292, now seen corresponding path program 2 times [2021-06-11 20:35:50,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:50,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677623867] [2021-06-11 20:35:50,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:50,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:50,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 20:35:50,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:50,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677623867] [2021-06-11 20:35:50,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:50,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 20:35:50,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963869288] [2021-06-11 20:35:50,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:50,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:50,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:50,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:50,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 54 [2021-06-11 20:35:50,590 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 117 flow. Second operand has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:50,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 54 [2021-06-11 20:35:50,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:50,715 INFO L129 PetriNetUnfolder]: 79/300 cut-off events. [2021-06-11 20:35:50,716 INFO L130 PetriNetUnfolder]: For 10/12 co-relation queries the response was YES. [2021-06-11 20:35:50,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 300 events. 79/300 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1861 event pairs, 8 based on Foata normal form. 2/285 useless extension candidates. Maximal degree in co-relation 571. Up to 48 conditions per place. [2021-06-11 20:35:50,719 INFO L132 encePairwiseOnDemand]: 45/54 looper letters, 19 selfloop transitions, 17 changer transitions 0/60 dead transitions. [2021-06-11 20:35:50,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 60 transitions, 243 flow [2021-06-11 20:35:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:50,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:50,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 343 transitions. [2021-06-11 20:35:50,721 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7057613168724279 [2021-06-11 20:35:50,721 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 343 transitions. [2021-06-11 20:35:50,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 343 transitions. [2021-06-11 20:35:50,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:50,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 343 transitions. [2021-06-11 20:35:50,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 38.111111111111114) internal successors, (343), 9 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,724 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,724 INFO L185 Difference]: Start difference. First operand has 37 places, 33 transitions, 117 flow. Second operand 9 states and 343 transitions. [2021-06-11 20:35:50,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 60 transitions, 243 flow [2021-06-11 20:35:50,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 60 transitions, 241 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-11 20:35:50,726 INFO L241 Difference]: Finished difference. Result has 50 places, 50 transitions, 231 flow [2021-06-11 20:35:50,727 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=115, 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=231, PETRI_PLACES=50, PETRI_TRANSITIONS=50} [2021-06-11 20:35:50,727 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2021-06-11 20:35:50,727 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:50,727 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 50 transitions, 231 flow [2021-06-11 20:35:50,728 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 50 transitions, 231 flow [2021-06-11 20:35:50,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 231 flow [2021-06-11 20:35:50,739 INFO L129 PetriNetUnfolder]: 43/215 cut-off events. [2021-06-11 20:35:50,739 INFO L130 PetriNetUnfolder]: For 62/63 co-relation queries the response was YES. [2021-06-11 20:35:50,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 215 events. 43/215 cut-off events. For 62/63 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1215 event pairs, 1 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 419. Up to 36 conditions per place. [2021-06-11 20:35:50,742 INFO L151 LiptonReduction]: Number of co-enabled transitions 392 [2021-06-11 20:35:50,755 INFO L163 LiptonReduction]: Checked pairs total: 66 [2021-06-11 20:35:50,756 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:50,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 20:35:50,757 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 50 transitions, 231 flow [2021-06-11 20:35:50,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,757 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:50,757 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] [2021-06-11 20:35:50,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 20:35:50,758 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:50,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:50,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1835477046, now seen corresponding path program 3 times [2021-06-11 20:35:50,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:50,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156803792] [2021-06-11 20:35:50,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:50,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:50,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:50,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:50,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:50,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156803792] [2021-06-11 20:35:50,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:50,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:50,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209482561] [2021-06-11 20:35:50,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:50,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:50,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:50,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:50,806 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 54 [2021-06-11 20:35:50,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 50 transitions, 231 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) [2021-06-11 20:35:50,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:50,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 54 [2021-06-11 20:35:50,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:50,918 INFO L129 PetriNetUnfolder]: 95/387 cut-off events. [2021-06-11 20:35:50,918 INFO L130 PetriNetUnfolder]: For 181/193 co-relation queries the response was YES. [2021-06-11 20:35:50,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 387 events. 95/387 cut-off events. For 181/193 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2661 event pairs, 5 based on Foata normal form. 10/388 useless extension candidates. Maximal degree in co-relation 907. Up to 78 conditions per place. [2021-06-11 20:35:50,921 INFO L132 encePairwiseOnDemand]: 47/54 looper letters, 21 selfloop transitions, 11 changer transitions 2/67 dead transitions. [2021-06-11 20:35:50,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 67 transitions, 367 flow [2021-06-11 20:35:50,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 388 transitions. [2021-06-11 20:35:50,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7983539094650206 [2021-06-11 20:35:50,922 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 388 transitions. [2021-06-11 20:35:50,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 388 transitions. [2021-06-11 20:35:50,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:50,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 388 transitions. [2021-06-11 20:35:50,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,925 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:50,925 INFO L185 Difference]: Start difference. First operand has 50 places, 50 transitions, 231 flow. Second operand 9 states and 388 transitions. [2021-06-11 20:35:50,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 67 transitions, 367 flow [2021-06-11 20:35:50,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 367 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 20:35:50,930 INFO L241 Difference]: Finished difference. Result has 64 places, 56 transitions, 309 flow [2021-06-11 20:35:50,930 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=309, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2021-06-11 20:35:50,930 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2021-06-11 20:35:50,930 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:50,930 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 56 transitions, 309 flow [2021-06-11 20:35:50,930 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 56 transitions, 309 flow [2021-06-11 20:35:50,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 309 flow [2021-06-11 20:35:50,948 INFO L129 PetriNetUnfolder]: 55/284 cut-off events. [2021-06-11 20:35:50,948 INFO L130 PetriNetUnfolder]: For 182/191 co-relation queries the response was YES. [2021-06-11 20:35:50,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 284 events. 55/284 cut-off events. For 182/191 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1837 event pairs, 1 based on Foata normal form. 5/276 useless extension candidates. Maximal degree in co-relation 701. Up to 54 conditions per place. [2021-06-11 20:35:50,951 INFO L151 LiptonReduction]: Number of co-enabled transitions 442 [2021-06-11 20:35:50,956 INFO L163 LiptonReduction]: Checked pairs total: 68 [2021-06-11 20:35:50,957 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:50,957 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-06-11 20:35:50,958 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 309 flow [2021-06-11 20:35:50,958 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) [2021-06-11 20:35:50,958 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:50,958 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] [2021-06-11 20:35:50,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 20:35:50,958 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:50,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:50,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1941157518, now seen corresponding path program 4 times [2021-06-11 20:35:50,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:50,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013240871] [2021-06-11 20:35:50,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:50,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:50,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:50,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:50,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:50,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:51,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:51,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013240871] [2021-06-11 20:35:51,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:51,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:51,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309962611] [2021-06-11 20:35:51,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:51,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:51,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:51,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:51,005 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 54 [2021-06-11 20:35:51,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 309 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) [2021-06-11 20:35:51,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:51,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 54 [2021-06-11 20:35:51,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:51,107 INFO L129 PetriNetUnfolder]: 100/416 cut-off events. [2021-06-11 20:35:51,107 INFO L130 PetriNetUnfolder]: For 470/496 co-relation queries the response was YES. [2021-06-11 20:35:51,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 416 events. 100/416 cut-off events. For 470/496 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2971 event pairs, 5 based on Foata normal form. 18/424 useless extension candidates. Maximal degree in co-relation 1234. Up to 136 conditions per place. [2021-06-11 20:35:51,111 INFO L132 encePairwiseOnDemand]: 47/54 looper letters, 17 selfloop transitions, 15 changer transitions 0/65 dead transitions. [2021-06-11 20:35:51,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 65 transitions, 437 flow [2021-06-11 20:35:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 20:35:51,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 20:35:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 344 transitions. [2021-06-11 20:35:51,113 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7962962962962963 [2021-06-11 20:35:51,113 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 344 transitions. [2021-06-11 20:35:51,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 344 transitions. [2021-06-11 20:35:51,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:51,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 344 transitions. [2021-06-11 20:35:51,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 43.0) internal successors, (344), 8 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 54.0) internal successors, (486), 9 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,115 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 54.0) internal successors, (486), 9 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,115 INFO L185 Difference]: Start difference. First operand has 62 places, 56 transitions, 309 flow. Second operand 8 states and 344 transitions. [2021-06-11 20:35:51,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 65 transitions, 437 flow [2021-06-11 20:35:51,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 65 transitions, 408 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-06-11 20:35:51,121 INFO L241 Difference]: Finished difference. Result has 68 places, 63 transitions, 384 flow [2021-06-11 20:35:51,121 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=384, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2021-06-11 20:35:51,122 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 35 predicate places. [2021-06-11 20:35:51,122 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:51,122 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 63 transitions, 384 flow [2021-06-11 20:35:51,122 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 63 transitions, 384 flow [2021-06-11 20:35:51,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 63 transitions, 384 flow [2021-06-11 20:35:51,146 INFO L129 PetriNetUnfolder]: 80/382 cut-off events. [2021-06-11 20:35:51,146 INFO L130 PetriNetUnfolder]: For 331/341 co-relation queries the response was YES. [2021-06-11 20:35:51,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 382 events. 80/382 cut-off events. For 331/341 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2792 event pairs, 5 based on Foata normal form. 4/370 useless extension candidates. Maximal degree in co-relation 966. Up to 69 conditions per place. [2021-06-11 20:35:51,151 INFO L151 LiptonReduction]: Number of co-enabled transitions 518 [2021-06-11 20:35:51,160 INFO L163 LiptonReduction]: Checked pairs total: 68 [2021-06-11 20:35:51,160 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:51,161 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-06-11 20:35:51,161 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 384 flow [2021-06-11 20:35:51,161 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) [2021-06-11 20:35:51,161 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:51,162 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] [2021-06-11 20:35:51,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 20:35:51,162 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:51,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1238411478, now seen corresponding path program 5 times [2021-06-11 20:35:51,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:51,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242997869] [2021-06-11 20:35:51,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:51,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:51,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242997869] [2021-06-11 20:35:51,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:51,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:51,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887181253] [2021-06-11 20:35:51,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:51,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:51,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:51,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:51,225 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 54 [2021-06-11 20:35:51,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 384 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) [2021-06-11 20:35:51,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:51,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 54 [2021-06-11 20:35:51,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:51,327 INFO L129 PetriNetUnfolder]: 97/441 cut-off events. [2021-06-11 20:35:51,327 INFO L130 PetriNetUnfolder]: For 540/568 co-relation queries the response was YES. [2021-06-11 20:35:51,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1436 conditions, 441 events. 97/441 cut-off events. For 540/568 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3271 event pairs, 5 based on Foata normal form. 20/451 useless extension candidates. Maximal degree in co-relation 1294. Up to 122 conditions per place. [2021-06-11 20:35:51,331 INFO L132 encePairwiseOnDemand]: 47/54 looper letters, 18 selfloop transitions, 17 changer transitions 0/68 dead transitions. [2021-06-11 20:35:51,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 68 transitions, 490 flow [2021-06-11 20:35:51,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:51,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 385 transitions. [2021-06-11 20:35:51,332 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7921810699588477 [2021-06-11 20:35:51,332 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 385 transitions. [2021-06-11 20:35:51,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 385 transitions. [2021-06-11 20:35:51,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:51,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 385 transitions. [2021-06-11 20:35:51,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.77777777777778) internal successors, (385), 9 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,334 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,334 INFO L185 Difference]: Start difference. First operand has 68 places, 63 transitions, 384 flow. Second operand 9 states and 385 transitions. [2021-06-11 20:35:51,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 68 transitions, 490 flow [2021-06-11 20:35:51,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 68 transitions, 459 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-06-11 20:35:51,342 INFO L241 Difference]: Finished difference. Result has 75 places, 65 transitions, 412 flow [2021-06-11 20:35:51,342 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=412, PETRI_PLACES=75, PETRI_TRANSITIONS=65} [2021-06-11 20:35:51,343 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 42 predicate places. [2021-06-11 20:35:51,343 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:51,343 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 65 transitions, 412 flow [2021-06-11 20:35:51,343 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 65 transitions, 412 flow [2021-06-11 20:35:51,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 65 transitions, 412 flow [2021-06-11 20:35:51,364 INFO L129 PetriNetUnfolder]: 67/363 cut-off events. [2021-06-11 20:35:51,364 INFO L130 PetriNetUnfolder]: For 341/347 co-relation queries the response was YES. [2021-06-11 20:35:51,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 363 events. 67/363 cut-off events. For 341/347 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2658 event pairs, 1 based on Foata normal form. 5/354 useless extension candidates. Maximal degree in co-relation 964. Up to 66 conditions per place. [2021-06-11 20:35:51,368 INFO L151 LiptonReduction]: Number of co-enabled transitions 524 [2021-06-11 20:35:51,374 INFO L163 LiptonReduction]: Checked pairs total: 68 [2021-06-11 20:35:51,374 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:51,375 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-06-11 20:35:51,378 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 65 transitions, 412 flow [2021-06-11 20:35:51,378 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) [2021-06-11 20:35:51,378 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:51,378 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] [2021-06-11 20:35:51,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 20:35:51,378 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:51,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:51,379 INFO L82 PathProgramCache]: Analyzing trace with hash 961036188, now seen corresponding path program 6 times [2021-06-11 20:35:51,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:51,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564151663] [2021-06-11 20:35:51,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:51,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:51,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564151663] [2021-06-11 20:35:51,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:51,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:51,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076535294] [2021-06-11 20:35:51,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:51,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:51,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:51,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:51,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 54 [2021-06-11 20:35:51,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 65 transitions, 412 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) [2021-06-11 20:35:51,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:51,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 54 [2021-06-11 20:35:51,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:51,559 INFO L129 PetriNetUnfolder]: 96/459 cut-off events. [2021-06-11 20:35:51,559 INFO L130 PetriNetUnfolder]: For 637/675 co-relation queries the response was YES. [2021-06-11 20:35:51,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1552 conditions, 459 events. 96/459 cut-off events. For 637/675 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3519 event pairs, 2 based on Foata normal form. 22/471 useless extension candidates. Maximal degree in co-relation 1428. Up to 137 conditions per place. [2021-06-11 20:35:51,563 INFO L132 encePairwiseOnDemand]: 47/54 looper letters, 17 selfloop transitions, 11 changer transitions 7/68 dead transitions. [2021-06-11 20:35:51,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 68 transitions, 513 flow [2021-06-11 20:35:51,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 20:35:51,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 20:35:51,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 425 transitions. [2021-06-11 20:35:51,564 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7870370370370371 [2021-06-11 20:35:51,565 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 425 transitions. [2021-06-11 20:35:51,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 425 transitions. [2021-06-11 20:35:51,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:51,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 425 transitions. [2021-06-11 20:35:51,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 42.5) internal successors, (425), 10 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 54.0) internal successors, (594), 11 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,568 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 54.0) internal successors, (594), 11 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,568 INFO L185 Difference]: Start difference. First operand has 75 places, 65 transitions, 412 flow. Second operand 10 states and 425 transitions. [2021-06-11 20:35:51,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 68 transitions, 513 flow [2021-06-11 20:35:51,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 68 transitions, 454 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-06-11 20:35:51,574 INFO L241 Difference]: Finished difference. Result has 80 places, 59 transitions, 352 flow [2021-06-11 20:35:51,574 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=352, PETRI_PLACES=80, PETRI_TRANSITIONS=59} [2021-06-11 20:35:51,574 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 47 predicate places. [2021-06-11 20:35:51,574 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:51,574 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 59 transitions, 352 flow [2021-06-11 20:35:51,575 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 59 transitions, 352 flow [2021-06-11 20:35:51,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 59 transitions, 352 flow [2021-06-11 20:35:51,594 INFO L129 PetriNetUnfolder]: 63/330 cut-off events. [2021-06-11 20:35:51,594 INFO L130 PetriNetUnfolder]: For 311/319 co-relation queries the response was YES. [2021-06-11 20:35:51,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 330 events. 63/330 cut-off events. For 311/319 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2330 event pairs, 2 based on Foata normal form. 5/321 useless extension candidates. Maximal degree in co-relation 925. Up to 63 conditions per place. [2021-06-11 20:35:51,597 INFO L151 LiptonReduction]: Number of co-enabled transitions 468 [2021-06-11 20:35:51,603 INFO L163 LiptonReduction]: Checked pairs total: 68 [2021-06-11 20:35:51,603 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:51,603 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 20:35:51,605 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 352 flow [2021-06-11 20:35:51,606 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) [2021-06-11 20:35:51,606 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:51,606 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] [2021-06-11 20:35:51,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 20:35:51,606 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:51,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:51,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1868020070, now seen corresponding path program 7 times [2021-06-11 20:35:51,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:51,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535659721] [2021-06-11 20:35:51,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:51,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:51,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:51,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535659721] [2021-06-11 20:35:51,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:51,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:51,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868038369] [2021-06-11 20:35:51,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:51,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:51,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:51,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:51,663 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 54 [2021-06-11 20:35:51,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 352 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) [2021-06-11 20:35:51,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:51,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 54 [2021-06-11 20:35:51,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:51,797 INFO L129 PetriNetUnfolder]: 97/551 cut-off events. [2021-06-11 20:35:51,798 INFO L130 PetriNetUnfolder]: For 824/863 co-relation queries the response was YES. [2021-06-11 20:35:51,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1762 conditions, 551 events. 97/551 cut-off events. For 824/863 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4589 event pairs, 6 based on Foata normal form. 26/564 useless extension candidates. Maximal degree in co-relation 1725. Up to 96 conditions per place. [2021-06-11 20:35:51,801 INFO L132 encePairwiseOnDemand]: 47/54 looper letters, 28 selfloop transitions, 20 changer transitions 2/83 dead transitions. [2021-06-11 20:35:51,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 83 transitions, 629 flow [2021-06-11 20:35:51,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:51,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 388 transitions. [2021-06-11 20:35:51,803 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7983539094650206 [2021-06-11 20:35:51,803 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 388 transitions. [2021-06-11 20:35:51,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 388 transitions. [2021-06-11 20:35:51,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:51,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 388 transitions. [2021-06-11 20:35:51,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,805 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:51,805 INFO L185 Difference]: Start difference. First operand has 72 places, 59 transitions, 352 flow. Second operand 9 states and 388 transitions. [2021-06-11 20:35:51,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 83 transitions, 629 flow [2021-06-11 20:35:51,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 83 transitions, 571 flow, removed 10 selfloop flow, removed 9 redundant places. [2021-06-11 20:35:51,811 INFO L241 Difference]: Finished difference. Result has 77 places, 70 transitions, 485 flow [2021-06-11 20:35:51,811 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=485, PETRI_PLACES=77, PETRI_TRANSITIONS=70} [2021-06-11 20:35:51,811 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 44 predicate places. [2021-06-11 20:35:51,811 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:51,812 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 70 transitions, 485 flow [2021-06-11 20:35:51,812 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 70 transitions, 485 flow [2021-06-11 20:35:51,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 70 transitions, 485 flow [2021-06-11 20:35:51,843 INFO L129 PetriNetUnfolder]: 79/500 cut-off events. [2021-06-11 20:35:51,844 INFO L130 PetriNetUnfolder]: For 716/725 co-relation queries the response was YES. [2021-06-11 20:35:51,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1460 conditions, 500 events. 79/500 cut-off events. For 716/725 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4159 event pairs, 3 based on Foata normal form. 5/492 useless extension candidates. Maximal degree in co-relation 1386. Up to 90 conditions per place. [2021-06-11 20:35:51,849 INFO L151 LiptonReduction]: Number of co-enabled transitions 532 [2021-06-11 20:35:51,856 INFO L163 LiptonReduction]: Checked pairs total: 74 [2021-06-11 20:35:51,856 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:51,856 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-06-11 20:35:51,857 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 485 flow [2021-06-11 20:35:51,857 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) [2021-06-11 20:35:51,857 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:51,857 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] [2021-06-11 20:35:51,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 20:35:51,857 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:51,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:51,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1396238540, now seen corresponding path program 8 times [2021-06-11 20:35:51,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:51,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98967858] [2021-06-11 20:35:51,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:51,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:51,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:51,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:51,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:51,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:51,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98967858] [2021-06-11 20:35:51,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:51,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:51,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555874982] [2021-06-11 20:35:51,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:51,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:51,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:51,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:51,895 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 54 [2021-06-11 20:35:51,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 485 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) [2021-06-11 20:35:51,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:51,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 54 [2021-06-11 20:35:51,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:52,006 INFO L129 PetriNetUnfolder]: 97/539 cut-off events. [2021-06-11 20:35:52,006 INFO L130 PetriNetUnfolder]: For 1119/1167 co-relation queries the response was YES. [2021-06-11 20:35:52,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1808 conditions, 539 events. 97/539 cut-off events. For 1119/1167 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4406 event pairs, 14 based on Foata normal form. 32/556 useless extension candidates. Maximal degree in co-relation 1715. Up to 121 conditions per place. [2021-06-11 20:35:52,010 INFO L132 encePairwiseOnDemand]: 47/54 looper letters, 21 selfloop transitions, 22 changer transitions 2/78 dead transitions. [2021-06-11 20:35:52,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 78 transitions, 630 flow [2021-06-11 20:35:52,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:52,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 385 transitions. [2021-06-11 20:35:52,011 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7921810699588477 [2021-06-11 20:35:52,011 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 385 transitions. [2021-06-11 20:35:52,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 385 transitions. [2021-06-11 20:35:52,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:52,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 385 transitions. [2021-06-11 20:35:52,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.77777777777778) internal successors, (385), 9 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,013 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,013 INFO L185 Difference]: Start difference. First operand has 75 places, 70 transitions, 485 flow. Second operand 9 states and 385 transitions. [2021-06-11 20:35:52,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 78 transitions, 630 flow [2021-06-11 20:35:52,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 78 transitions, 597 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-06-11 20:35:52,020 INFO L241 Difference]: Finished difference. Result has 82 places, 73 transitions, 540 flow [2021-06-11 20:35:52,020 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=540, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2021-06-11 20:35:52,020 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 49 predicate places. [2021-06-11 20:35:52,020 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:52,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 73 transitions, 540 flow [2021-06-11 20:35:52,021 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 73 transitions, 540 flow [2021-06-11 20:35:52,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 73 transitions, 540 flow [2021-06-11 20:35:52,046 INFO L129 PetriNetUnfolder]: 75/476 cut-off events. [2021-06-11 20:35:52,046 INFO L130 PetriNetUnfolder]: For 834/842 co-relation queries the response was YES. [2021-06-11 20:35:52,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 476 events. 75/476 cut-off events. For 834/842 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3865 event pairs, 3 based on Foata normal form. 4/467 useless extension candidates. Maximal degree in co-relation 1363. Up to 84 conditions per place. [2021-06-11 20:35:52,050 INFO L151 LiptonReduction]: Number of co-enabled transitions 540 [2021-06-11 20:35:52,057 INFO L163 LiptonReduction]: Checked pairs total: 74 [2021-06-11 20:35:52,057 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:52,057 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-06-11 20:35:52,057 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 540 flow [2021-06-11 20:35:52,058 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) [2021-06-11 20:35:52,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:52,058 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] [2021-06-11 20:35:52,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 20:35:52,058 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:52,058 INFO L82 PathProgramCache]: Analyzing trace with hash 585654800, now seen corresponding path program 9 times [2021-06-11 20:35:52,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:52,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18302389] [2021-06-11 20:35:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:52,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:52,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:52,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:52,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:52,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:52,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:52,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18302389] [2021-06-11 20:35:52,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:52,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:52,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072737435] [2021-06-11 20:35:52,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:52,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:52,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:52,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:52,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 54 [2021-06-11 20:35:52,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 540 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) [2021-06-11 20:35:52,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:52,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 54 [2021-06-11 20:35:52,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:52,198 INFO L129 PetriNetUnfolder]: 89/539 cut-off events. [2021-06-11 20:35:52,198 INFO L130 PetriNetUnfolder]: For 1154/1200 co-relation queries the response was YES. [2021-06-11 20:35:52,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1827 conditions, 539 events. 89/539 cut-off events. For 1154/1200 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4495 event pairs, 6 based on Foata normal form. 31/556 useless extension candidates. Maximal degree in co-relation 1728. Up to 157 conditions per place. [2021-06-11 20:35:52,202 INFO L132 encePairwiseOnDemand]: 47/54 looper letters, 27 selfloop transitions, 20 changer transitions 0/80 dead transitions. [2021-06-11 20:35:52,202 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 80 transitions, 689 flow [2021-06-11 20:35:52,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 20:35:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 20:35:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 426 transitions. [2021-06-11 20:35:52,203 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7888888888888889 [2021-06-11 20:35:52,203 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 426 transitions. [2021-06-11 20:35:52,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 426 transitions. [2021-06-11 20:35:52,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:52,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 426 transitions. [2021-06-11 20:35:52,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 42.6) internal successors, (426), 10 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 54.0) internal successors, (594), 11 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,205 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 54.0) internal successors, (594), 11 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,205 INFO L185 Difference]: Start difference. First operand has 80 places, 73 transitions, 540 flow. Second operand 10 states and 426 transitions. [2021-06-11 20:35:52,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 80 transitions, 689 flow [2021-06-11 20:35:52,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 80 transitions, 605 flow, removed 16 selfloop flow, removed 9 redundant places. [2021-06-11 20:35:52,215 INFO L241 Difference]: Finished difference. Result has 82 places, 78 transitions, 558 flow [2021-06-11 20:35:52,215 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=558, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2021-06-11 20:35:52,216 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 49 predicate places. [2021-06-11 20:35:52,216 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:52,216 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 78 transitions, 558 flow [2021-06-11 20:35:52,216 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 78 transitions, 558 flow [2021-06-11 20:35:52,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 558 flow [2021-06-11 20:35:52,242 INFO L129 PetriNetUnfolder]: 83/527 cut-off events. [2021-06-11 20:35:52,242 INFO L130 PetriNetUnfolder]: For 735/742 co-relation queries the response was YES. [2021-06-11 20:35:52,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1534 conditions, 527 events. 83/527 cut-off events. For 735/742 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4501 event pairs, 3 based on Foata normal form. 5/517 useless extension candidates. Maximal degree in co-relation 1417. Up to 96 conditions per place. [2021-06-11 20:35:52,246 INFO L151 LiptonReduction]: Number of co-enabled transitions 576 [2021-06-11 20:35:52,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:52,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:52,325 INFO L163 LiptonReduction]: Checked pairs total: 180 [2021-06-11 20:35:52,325 INFO L165 LiptonReduction]: Total number of compositions: 4 [2021-06-11 20:35:52,326 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 110 [2021-06-11 20:35:52,327 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 558 flow [2021-06-11 20:35:52,327 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) [2021-06-11 20:35:52,327 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:52,327 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] [2021-06-11 20:35:52,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 20:35:52,327 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:52,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:52,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1016744144, now seen corresponding path program 10 times [2021-06-11 20:35:52,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:52,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843840561] [2021-06-11 20:35:52,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:52,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:52,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:52,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:52,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:52,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:52,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:52,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843840561] [2021-06-11 20:35:52,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:52,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:52,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028921321] [2021-06-11 20:35:52,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:52,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:52,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:52,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:52,389 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 58 [2021-06-11 20:35:52,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 558 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) [2021-06-11 20:35:52,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:52,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 58 [2021-06-11 20:35:52,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:52,528 INFO L129 PetriNetUnfolder]: 89/537 cut-off events. [2021-06-11 20:35:52,528 INFO L130 PetriNetUnfolder]: For 929/1029 co-relation queries the response was YES. [2021-06-11 20:35:52,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1737 conditions, 537 events. 89/537 cut-off events. For 929/1029 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4501 event pairs, 6 based on Foata normal form. 49/572 useless extension candidates. Maximal degree in co-relation 1602. Up to 145 conditions per place. [2021-06-11 20:35:52,531 INFO L132 encePairwiseOnDemand]: 49/58 looper letters, 25 selfloop transitions, 22 changer transitions 0/80 dead transitions. [2021-06-11 20:35:52,531 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 80 transitions, 661 flow [2021-06-11 20:35:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:52,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:52,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 388 transitions. [2021-06-11 20:35:52,532 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7432950191570882 [2021-06-11 20:35:52,532 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 388 transitions. [2021-06-11 20:35:52,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 388 transitions. [2021-06-11 20:35:52,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:52,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 388 transitions. [2021-06-11 20:35:52,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 58.0) internal successors, (580), 10 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,534 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 58.0) internal successors, (580), 10 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,534 INFO L185 Difference]: Start difference. First operand has 82 places, 78 transitions, 558 flow. Second operand 9 states and 388 transitions. [2021-06-11 20:35:52,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 80 transitions, 661 flow [2021-06-11 20:35:52,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 80 transitions, 605 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-06-11 20:35:52,541 INFO L241 Difference]: Finished difference. Result has 86 places, 78 transitions, 549 flow [2021-06-11 20:35:52,541 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=549, PETRI_PLACES=86, PETRI_TRANSITIONS=78} [2021-06-11 20:35:52,542 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 53 predicate places. [2021-06-11 20:35:52,542 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:52,542 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 78 transitions, 549 flow [2021-06-11 20:35:52,542 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 78 transitions, 549 flow [2021-06-11 20:35:52,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 78 transitions, 549 flow [2021-06-11 20:35:52,568 INFO L129 PetriNetUnfolder]: 83/525 cut-off events. [2021-06-11 20:35:52,568 INFO L130 PetriNetUnfolder]: For 596/597 co-relation queries the response was YES. [2021-06-11 20:35:52,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1543 conditions, 525 events. 83/525 cut-off events. For 596/597 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4452 event pairs, 3 based on Foata normal form. 1/513 useless extension candidates. Maximal degree in co-relation 1418. Up to 96 conditions per place. [2021-06-11 20:35:52,572 INFO L151 LiptonReduction]: Number of co-enabled transitions 576 [2021-06-11 20:35:52,580 INFO L163 LiptonReduction]: Checked pairs total: 74 [2021-06-11 20:35:52,580 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:52,581 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-06-11 20:35:52,581 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 549 flow [2021-06-11 20:35:52,581 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) [2021-06-11 20:35:52,581 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:52,581 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] [2021-06-11 20:35:52,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 20:35:52,581 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:52,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:52,582 INFO L82 PathProgramCache]: Analyzing trace with hash -924611330, now seen corresponding path program 1 times [2021-06-11 20:35:52,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:52,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762555015] [2021-06-11 20:35:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:52,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:52,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:52,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 20:35:52,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:52,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:52,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762555015] [2021-06-11 20:35:52,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:52,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 20:35:52,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206110151] [2021-06-11 20:35:52,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 20:35:52,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:52,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 20:35:52,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-11 20:35:52,630 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 58 [2021-06-11 20:35:52,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 549 flow. Second operand has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:52,631 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 58 [2021-06-11 20:35:52,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:52,715 INFO L129 PetriNetUnfolder]: 89/535 cut-off events. [2021-06-11 20:35:52,715 INFO L130 PetriNetUnfolder]: For 744/828 co-relation queries the response was YES. [2021-06-11 20:35:52,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1749 conditions, 535 events. 89/535 cut-off events. For 744/828 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4499 event pairs, 9 based on Foata normal form. 36/556 useless extension candidates. Maximal degree in co-relation 1608. Up to 172 conditions per place. [2021-06-11 20:35:52,718 INFO L132 encePairwiseOnDemand]: 51/58 looper letters, 27 selfloop transitions, 10 changer transitions 13/79 dead transitions. [2021-06-11 20:35:52,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 79 transitions, 654 flow [2021-06-11 20:35:52,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 20:35:52,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 20:35:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 262 transitions. [2021-06-11 20:35:52,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7528735632183908 [2021-06-11 20:35:52,719 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 262 transitions. [2021-06-11 20:35:52,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 262 transitions. [2021-06-11 20:35:52,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:52,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 262 transitions. [2021-06-11 20:35:52,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 43.666666666666664) internal successors, (262), 6 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,721 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,721 INFO L185 Difference]: Start difference. First operand has 86 places, 78 transitions, 549 flow. Second operand 6 states and 262 transitions. [2021-06-11 20:35:52,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 79 transitions, 654 flow [2021-06-11 20:35:52,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 79 transitions, 538 flow, removed 11 selfloop flow, removed 12 redundant places. [2021-06-11 20:35:52,726 INFO L241 Difference]: Finished difference. Result has 81 places, 66 transitions, 409 flow [2021-06-11 20:35:52,726 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=409, PETRI_PLACES=81, PETRI_TRANSITIONS=66} [2021-06-11 20:35:52,726 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 48 predicate places. [2021-06-11 20:35:52,726 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:52,726 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 66 transitions, 409 flow [2021-06-11 20:35:52,727 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 66 transitions, 409 flow [2021-06-11 20:35:52,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 66 transitions, 409 flow [2021-06-11 20:35:52,744 INFO L129 PetriNetUnfolder]: 63/420 cut-off events. [2021-06-11 20:35:52,744 INFO L130 PetriNetUnfolder]: For 332/332 co-relation queries the response was YES. [2021-06-11 20:35:52,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 420 events. 63/420 cut-off events. For 332/332 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3337 event pairs, 2 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 1033. Up to 78 conditions per place. [2021-06-11 20:35:52,747 INFO L151 LiptonReduction]: Number of co-enabled transitions 426 [2021-06-11 20:35:52,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:52,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:52,852 INFO L163 LiptonReduction]: Checked pairs total: 128 [2021-06-11 20:35:52,852 INFO L165 LiptonReduction]: Total number of compositions: 6 [2021-06-11 20:35:52,853 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-06-11 20:35:52,855 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 66 transitions, 409 flow [2021-06-11 20:35:52,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,855 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:52,855 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] [2021-06-11 20:35:52,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 20:35:52,856 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:52,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:52,856 INFO L82 PathProgramCache]: Analyzing trace with hash -59873935, now seen corresponding path program 1 times [2021-06-11 20:35:52,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:52,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958038409] [2021-06-11 20:35:52,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:52,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:52,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:52,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:52,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:52,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958038409] [2021-06-11 20:35:52,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:52,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 20:35:52,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297496998] [2021-06-11 20:35:52,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 20:35:52,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:52,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 20:35:52,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 20:35:52,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 64 [2021-06-11 20:35:52,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 66 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:52,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 64 [2021-06-11 20:35:52,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:52,903 INFO L129 PetriNetUnfolder]: 34/338 cut-off events. [2021-06-11 20:35:52,903 INFO L130 PetriNetUnfolder]: For 267/267 co-relation queries the response was YES. [2021-06-11 20:35:52,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 338 events. 34/338 cut-off events. For 267/267 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2670 event pairs, 0 based on Foata normal form. 2/327 useless extension candidates. Maximal degree in co-relation 782. Up to 55 conditions per place. [2021-06-11 20:35:52,905 INFO L132 encePairwiseOnDemand]: 60/64 looper letters, 3 selfloop transitions, 4 changer transitions 3/65 dead transitions. [2021-06-11 20:35:52,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 65 transitions, 419 flow [2021-06-11 20:35:52,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 20:35:52,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 20:35:52,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 164 transitions. [2021-06-11 20:35:52,906 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8541666666666666 [2021-06-11 20:35:52,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 164 transitions. [2021-06-11 20:35:52,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 164 transitions. [2021-06-11 20:35:52,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:52,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 164 transitions. [2021-06-11 20:35:52,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,907 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,907 INFO L185 Difference]: Start difference. First operand has 71 places, 66 transitions, 409 flow. Second operand 3 states and 164 transitions. [2021-06-11 20:35:52,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 65 transitions, 419 flow [2021-06-11 20:35:52,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 65 transitions, 374 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-06-11 20:35:52,909 INFO L241 Difference]: Finished difference. Result has 66 places, 62 transitions, 358 flow [2021-06-11 20:35:52,909 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2021-06-11 20:35:52,910 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 33 predicate places. [2021-06-11 20:35:52,910 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:52,910 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 62 transitions, 358 flow [2021-06-11 20:35:52,910 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 62 transitions, 358 flow [2021-06-11 20:35:52,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 358 flow [2021-06-11 20:35:52,921 INFO L129 PetriNetUnfolder]: 28/316 cut-off events. [2021-06-11 20:35:52,922 INFO L130 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2021-06-11 20:35:52,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 316 events. 28/316 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2527 event pairs, 0 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 614. Up to 49 conditions per place. [2021-06-11 20:35:52,923 INFO L151 LiptonReduction]: Number of co-enabled transitions 332 [2021-06-11 20:35:52,933 INFO L163 LiptonReduction]: Checked pairs total: 120 [2021-06-11 20:35:52,933 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:52,933 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 20:35:52,933 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 358 flow [2021-06-11 20:35:52,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:52,934 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:52,934 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] [2021-06-11 20:35:52,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 20:35:52,934 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:52,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:52,934 INFO L82 PathProgramCache]: Analyzing trace with hash -575280747, now seen corresponding path program 1 times [2021-06-11 20:35:52,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:52,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774992662] [2021-06-11 20:35:52,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:52,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:52,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:52,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:52,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:52,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:52,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:52,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:52,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:52,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774992662] [2021-06-11 20:35:52,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:52,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 20:35:52,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352951896] [2021-06-11 20:35:52,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 20:35:52,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:52,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 20:35:52,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-11 20:35:53,000 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 64 [2021-06-11 20:35:53,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 358 flow. Second operand has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:53,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 64 [2021-06-11 20:35:53,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:53,153 INFO L129 PetriNetUnfolder]: 111/679 cut-off events. [2021-06-11 20:35:53,153 INFO L130 PetriNetUnfolder]: For 625/718 co-relation queries the response was YES. [2021-06-11 20:35:53,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 679 events. 111/679 cut-off events. For 625/718 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6172 event pairs, 4 based on Foata normal form. 27/686 useless extension candidates. Maximal degree in co-relation 1724. Up to 111 conditions per place. [2021-06-11 20:35:53,156 INFO L132 encePairwiseOnDemand]: 55/64 looper letters, 21 selfloop transitions, 18 changer transitions 7/89 dead transitions. [2021-06-11 20:35:53,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 89 transitions, 592 flow [2021-06-11 20:35:53,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:53,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:53,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 414 transitions. [2021-06-11 20:35:53,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.71875 [2021-06-11 20:35:53,157 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 414 transitions. [2021-06-11 20:35:53,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 414 transitions. [2021-06-11 20:35:53,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:53,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 414 transitions. [2021-06-11 20:35:53,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 46.0) internal successors, (414), 9 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) [2021-06-11 20:35:53,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,159 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,160 INFO L185 Difference]: Start difference. First operand has 65 places, 62 transitions, 358 flow. Second operand 9 states and 414 transitions. [2021-06-11 20:35:53,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 89 transitions, 592 flow [2021-06-11 20:35:53,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 89 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 20:35:53,163 INFO L241 Difference]: Finished difference. Result has 76 places, 72 transitions, 479 flow [2021-06-11 20:35:53,163 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=479, PETRI_PLACES=76, PETRI_TRANSITIONS=72} [2021-06-11 20:35:53,163 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 43 predicate places. [2021-06-11 20:35:53,163 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:53,164 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 72 transitions, 479 flow [2021-06-11 20:35:53,164 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 72 transitions, 479 flow [2021-06-11 20:35:53,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 479 flow [2021-06-11 20:35:53,191 INFO L129 PetriNetUnfolder]: 93/589 cut-off events. [2021-06-11 20:35:53,191 INFO L130 PetriNetUnfolder]: For 666/668 co-relation queries the response was YES. [2021-06-11 20:35:53,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1732 conditions, 589 events. 93/589 cut-off events. For 666/668 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5327 event pairs, 2 based on Foata normal form. 2/577 useless extension candidates. Maximal degree in co-relation 1574. Up to 107 conditions per place. [2021-06-11 20:35:53,195 INFO L151 LiptonReduction]: Number of co-enabled transitions 472 [2021-06-11 20:35:53,200 INFO L163 LiptonReduction]: Checked pairs total: 38 [2021-06-11 20:35:53,201 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:53,201 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-06-11 20:35:53,201 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 479 flow [2021-06-11 20:35:53,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,201 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:53,201 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] [2021-06-11 20:35:53,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-11 20:35:53,201 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:53,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:53,202 INFO L82 PathProgramCache]: Analyzing trace with hash -55551859, now seen corresponding path program 2 times [2021-06-11 20:35:53,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:53,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505653202] [2021-06-11 20:35:53,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:53,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:53,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:53,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:53,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505653202] [2021-06-11 20:35:53,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:53,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 20:35:53,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305295580] [2021-06-11 20:35:53,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 20:35:53,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:53,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 20:35:53,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 20:35:53,212 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 64 [2021-06-11 20:35:53,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 72 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:53,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 64 [2021-06-11 20:35:53,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:53,246 INFO L129 PetriNetUnfolder]: 70/542 cut-off events. [2021-06-11 20:35:53,246 INFO L130 PetriNetUnfolder]: For 532/535 co-relation queries the response was YES. [2021-06-11 20:35:53,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1517 conditions, 542 events. 70/542 cut-off events. For 532/535 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4771 event pairs, 1 based on Foata normal form. 6/530 useless extension candidates. Maximal degree in co-relation 1339. Up to 88 conditions per place. [2021-06-11 20:35:53,248 INFO L132 encePairwiseOnDemand]: 61/64 looper letters, 2 selfloop transitions, 8 changer transitions 1/72 dead transitions. [2021-06-11 20:35:53,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 72 transitions, 499 flow [2021-06-11 20:35:53,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 20:35:53,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 20:35:53,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2021-06-11 20:35:53,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8854166666666666 [2021-06-11 20:35:53,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 170 transitions. [2021-06-11 20:35:53,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 170 transitions. [2021-06-11 20:35:53,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:53,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 170 transitions. [2021-06-11 20:35:53,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,250 INFO L185 Difference]: Start difference. First operand has 76 places, 72 transitions, 479 flow. Second operand 3 states and 170 transitions. [2021-06-11 20:35:53,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 72 transitions, 499 flow [2021-06-11 20:35:53,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 492 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-06-11 20:35:53,253 INFO L241 Difference]: Finished difference. Result has 77 places, 71 transitions, 488 flow [2021-06-11 20:35:53,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=77, PETRI_TRANSITIONS=71} [2021-06-11 20:35:53,254 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 44 predicate places. [2021-06-11 20:35:53,254 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:53,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 71 transitions, 488 flow [2021-06-11 20:35:53,254 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 71 transitions, 488 flow [2021-06-11 20:35:53,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 71 transitions, 488 flow [2021-06-11 20:35:53,275 INFO L129 PetriNetUnfolder]: 68/518 cut-off events. [2021-06-11 20:35:53,275 INFO L130 PetriNetUnfolder]: For 515/517 co-relation queries the response was YES. [2021-06-11 20:35:53,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1473 conditions, 518 events. 68/518 cut-off events. For 515/517 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4591 event pairs, 1 based on Foata normal form. 2/509 useless extension candidates. Maximal degree in co-relation 1317. Up to 88 conditions per place. [2021-06-11 20:35:53,278 INFO L151 LiptonReduction]: Number of co-enabled transitions 412 [2021-06-11 20:35:53,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:53,304 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 20:35:53,305 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 20:35:53,305 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-06-11 20:35:53,305 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 71 transitions, 491 flow [2021-06-11 20:35:53,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,305 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:53,305 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] [2021-06-11 20:35:53,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-11 20:35:53,306 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:53,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1429218180, now seen corresponding path program 1 times [2021-06-11 20:35:53,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:53,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286030544] [2021-06-11 20:35:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:53,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,345 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-06-11 20:35:53,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 20:35:53,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:53,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286030544] [2021-06-11 20:35:53,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:53,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 20:35:53,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016928175] [2021-06-11 20:35:53,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 20:35:53,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:53,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 20:35:53,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-11 20:35:53,354 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 65 [2021-06-11 20:35:53,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 71 transitions, 491 flow. Second operand has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:53,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 65 [2021-06-11 20:35:53,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:53,474 INFO L129 PetriNetUnfolder]: 111/649 cut-off events. [2021-06-11 20:35:53,474 INFO L130 PetriNetUnfolder]: For 1154/1235 co-relation queries the response was YES. [2021-06-11 20:35:53,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2126 conditions, 649 events. 111/649 cut-off events. For 1154/1235 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5748 event pairs, 10 based on Foata normal form. 17/648 useless extension candidates. Maximal degree in co-relation 1948. Up to 165 conditions per place. [2021-06-11 20:35:53,478 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 23 selfloop transitions, 17 changer transitions 1/84 dead transitions. [2021-06-11 20:35:53,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 84 transitions, 656 flow [2021-06-11 20:35:53,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:53,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:53,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 407 transitions. [2021-06-11 20:35:53,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6957264957264957 [2021-06-11 20:35:53,480 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 407 transitions. [2021-06-11 20:35:53,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 407 transitions. [2021-06-11 20:35:53,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:53,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 407 transitions. [2021-06-11 20:35:53,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 45.22222222222222) internal successors, (407), 9 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 65.0) internal successors, (650), 10 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,483 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 65.0) internal successors, (650), 10 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,483 INFO L185 Difference]: Start difference. First operand has 77 places, 71 transitions, 491 flow. Second operand 9 states and 407 transitions. [2021-06-11 20:35:53,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 84 transitions, 656 flow [2021-06-11 20:35:53,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 84 transitions, 625 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-11 20:35:53,487 INFO L241 Difference]: Finished difference. Result has 85 places, 79 transitions, 576 flow [2021-06-11 20:35:53,487 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=576, PETRI_PLACES=85, PETRI_TRANSITIONS=79} [2021-06-11 20:35:53,487 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 52 predicate places. [2021-06-11 20:35:53,488 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:53,488 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 79 transitions, 576 flow [2021-06-11 20:35:53,488 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 79 transitions, 576 flow [2021-06-11 20:35:53,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 79 transitions, 576 flow [2021-06-11 20:35:53,513 INFO L129 PetriNetUnfolder]: 94/603 cut-off events. [2021-06-11 20:35:53,513 INFO L130 PetriNetUnfolder]: For 912/939 co-relation queries the response was YES. [2021-06-11 20:35:53,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1812 conditions, 603 events. 94/603 cut-off events. For 912/939 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5406 event pairs, 1 based on Foata normal form. 11/607 useless extension candidates. Maximal degree in co-relation 1643. Up to 101 conditions per place. [2021-06-11 20:35:53,517 INFO L151 LiptonReduction]: Number of co-enabled transitions 528 [2021-06-11 20:35:53,520 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 20:35:53,520 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:53,520 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-06-11 20:35:53,523 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 79 transitions, 576 flow [2021-06-11 20:35:53,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,523 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:53,523 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] [2021-06-11 20:35:53,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-11 20:35:53,523 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:53,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:53,524 INFO L82 PathProgramCache]: Analyzing trace with hash 408952387, now seen corresponding path program 1 times [2021-06-11 20:35:53,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:53,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601805879] [2021-06-11 20:35:53,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:53,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:53,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 20:35:53,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 20:35:53,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:53,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:53,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601805879] [2021-06-11 20:35:53,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:53,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 20:35:53,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694103728] [2021-06-11 20:35:53,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 20:35:53,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:53,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 20:35:53,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 20:35:53,559 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 65 [2021-06-11 20:35:53,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 79 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 43.333333333333336) internal successors, (260), 6 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:53,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 65 [2021-06-11 20:35:53,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:53,627 INFO L129 PetriNetUnfolder]: 90/517 cut-off events. [2021-06-11 20:35:53,627 INFO L130 PetriNetUnfolder]: For 1397/1469 co-relation queries the response was YES. [2021-06-11 20:35:53,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 517 events. 90/517 cut-off events. For 1397/1469 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4178 event pairs, 3 based on Foata normal form. 24/531 useless extension candidates. Maximal degree in co-relation 1693. Up to 116 conditions per place. [2021-06-11 20:35:53,630 INFO L132 encePairwiseOnDemand]: 58/65 looper letters, 20 selfloop transitions, 9 changer transitions 15/85 dead transitions. [2021-06-11 20:35:53,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 85 transitions, 696 flow [2021-06-11 20:35:53,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 20:35:53,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 20:35:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 276 transitions. [2021-06-11 20:35:53,631 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7076923076923077 [2021-06-11 20:35:53,631 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 276 transitions. [2021-06-11 20:35:53,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 276 transitions. [2021-06-11 20:35:53,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:53,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 276 transitions. [2021-06-11 20:35:53,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,632 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,632 INFO L185 Difference]: Start difference. First operand has 85 places, 79 transitions, 576 flow. Second operand 6 states and 276 transitions. [2021-06-11 20:35:53,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 85 transitions, 696 flow [2021-06-11 20:35:53,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 85 transitions, 672 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-06-11 20:35:53,636 INFO L241 Difference]: Finished difference. Result has 87 places, 70 transitions, 507 flow [2021-06-11 20:35:53,636 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=507, PETRI_PLACES=87, PETRI_TRANSITIONS=70} [2021-06-11 20:35:53,636 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 54 predicate places. [2021-06-11 20:35:53,636 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:53,636 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 70 transitions, 507 flow [2021-06-11 20:35:53,637 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 70 transitions, 507 flow [2021-06-11 20:35:53,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 70 transitions, 507 flow [2021-06-11 20:35:53,653 INFO L129 PetriNetUnfolder]: 78/423 cut-off events. [2021-06-11 20:35:53,653 INFO L130 PetriNetUnfolder]: For 882/891 co-relation queries the response was YES. [2021-06-11 20:35:53,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 423 events. 78/423 cut-off events. For 882/891 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3324 event pairs, 2 based on Foata normal form. 3/424 useless extension candidates. Maximal degree in co-relation 1237. Up to 92 conditions per place. [2021-06-11 20:35:53,655 INFO L151 LiptonReduction]: Number of co-enabled transitions 376 [2021-06-11 20:35:53,657 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 20:35:53,658 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:53,658 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-06-11 20:35:53,658 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 70 transitions, 507 flow [2021-06-11 20:35:53,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 43.333333333333336) internal successors, (260), 6 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,659 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:53,659 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] [2021-06-11 20:35:53,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-11 20:35:53,659 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:53,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1434879018, now seen corresponding path program 2 times [2021-06-11 20:35:53,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:53,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042634400] [2021-06-11 20:35:53,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:53,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,707 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-06-11 20:35:53,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:53,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042634400] [2021-06-11 20:35:53,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:53,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 20:35:53,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120884122] [2021-06-11 20:35:53,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 20:35:53,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:53,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 20:35:53,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-11 20:35:53,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 65 [2021-06-11 20:35:53,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 70 transitions, 507 flow. Second operand has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:53,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 65 [2021-06-11 20:35:53,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:53,816 INFO L129 PetriNetUnfolder]: 81/458 cut-off events. [2021-06-11 20:35:53,816 INFO L130 PetriNetUnfolder]: For 1495/1574 co-relation queries the response was YES. [2021-06-11 20:35:53,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1589 conditions, 458 events. 81/458 cut-off events. For 1495/1574 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3616 event pairs, 0 based on Foata normal form. 43/497 useless extension candidates. Maximal degree in co-relation 1451. Up to 94 conditions per place. [2021-06-11 20:35:53,818 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 16 selfloop transitions, 16 changer transitions 0/73 dead transitions. [2021-06-11 20:35:53,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 73 transitions, 596 flow [2021-06-11 20:35:53,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:53,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 403 transitions. [2021-06-11 20:35:53,819 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2021-06-11 20:35:53,819 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 403 transitions. [2021-06-11 20:35:53,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 403 transitions. [2021-06-11 20:35:53,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:53,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 403 transitions. [2021-06-11 20:35:53,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 44.77777777777778) internal successors, (403), 9 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 65.0) internal successors, (650), 10 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,823 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 65.0) internal successors, (650), 10 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,823 INFO L185 Difference]: Start difference. First operand has 84 places, 70 transitions, 507 flow. Second operand 9 states and 403 transitions. [2021-06-11 20:35:53,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 73 transitions, 596 flow [2021-06-11 20:35:53,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 73 transitions, 523 flow, removed 0 selfloop flow, removed 12 redundant places. [2021-06-11 20:35:53,827 INFO L241 Difference]: Finished difference. Result has 82 places, 72 transitions, 494 flow [2021-06-11 20:35:53,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=494, PETRI_PLACES=82, PETRI_TRANSITIONS=72} [2021-06-11 20:35:53,828 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 49 predicate places. [2021-06-11 20:35:53,828 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:53,828 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 72 transitions, 494 flow [2021-06-11 20:35:53,828 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 72 transitions, 494 flow [2021-06-11 20:35:53,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 72 transitions, 494 flow [2021-06-11 20:35:53,849 INFO L129 PetriNetUnfolder]: 78/429 cut-off events. [2021-06-11 20:35:53,849 INFO L130 PetriNetUnfolder]: For 555/565 co-relation queries the response was YES. [2021-06-11 20:35:53,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 429 events. 78/429 cut-off events. For 555/565 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3426 event pairs, 2 based on Foata normal form. 8/437 useless extension candidates. Maximal degree in co-relation 1221. Up to 92 conditions per place. [2021-06-11 20:35:53,851 INFO L151 LiptonReduction]: Number of co-enabled transitions 374 [2021-06-11 20:35:53,853 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 20:35:53,853 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:53,853 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-06-11 20:35:53,854 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 72 transitions, 494 flow [2021-06-11 20:35:53,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,854 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:53,854 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] [2021-06-11 20:35:53,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-11 20:35:53,855 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:53,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:53,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1759712209, now seen corresponding path program 3 times [2021-06-11 20:35:53,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:53,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489921959] [2021-06-11 20:35:53,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:53,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:53,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 20:35:53,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:53,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:53,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:53,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489921959] [2021-06-11 20:35:53,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:53,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 20:35:53,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983921795] [2021-06-11 20:35:53,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 20:35:53,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:53,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 20:35:53,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-11 20:35:53,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 65 [2021-06-11 20:35:53,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 72 transitions, 494 flow. Second operand has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:53,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 65 [2021-06-11 20:35:53,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:53,994 INFO L129 PetriNetUnfolder]: 55/389 cut-off events. [2021-06-11 20:35:53,995 INFO L130 PetriNetUnfolder]: For 742/808 co-relation queries the response was YES. [2021-06-11 20:35:53,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1295 conditions, 389 events. 55/389 cut-off events. For 742/808 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3075 event pairs, 0 based on Foata normal form. 17/401 useless extension candidates. Maximal degree in co-relation 1173. Up to 82 conditions per place. [2021-06-11 20:35:53,996 INFO L132 encePairwiseOnDemand]: 57/65 looper letters, 15 selfloop transitions, 11 changer transitions 4/71 dead transitions. [2021-06-11 20:35:53,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 71 transitions, 543 flow [2021-06-11 20:35:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 401 transitions. [2021-06-11 20:35:53,997 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6854700854700855 [2021-06-11 20:35:53,997 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 401 transitions. [2021-06-11 20:35:53,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 401 transitions. [2021-06-11 20:35:53,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:53,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 401 transitions. [2021-06-11 20:35:53,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 44.55555555555556) internal successors, (401), 9 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 65.0) internal successors, (650), 10 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,999 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 65.0) internal successors, (650), 10 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:53,999 INFO L185 Difference]: Start difference. First operand has 82 places, 72 transitions, 494 flow. Second operand 9 states and 401 transitions. [2021-06-11 20:35:53,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 71 transitions, 543 flow [2021-06-11 20:35:54,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 71 transitions, 520 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-06-11 20:35:54,002 INFO L241 Difference]: Finished difference. Result has 86 places, 66 transitions, 440 flow [2021-06-11 20:35:54,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=440, PETRI_PLACES=86, PETRI_TRANSITIONS=66} [2021-06-11 20:35:54,003 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 53 predicate places. [2021-06-11 20:35:54,003 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:54,003 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 66 transitions, 440 flow [2021-06-11 20:35:54,003 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 66 transitions, 440 flow [2021-06-11 20:35:54,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 66 transitions, 440 flow [2021-06-11 20:35:54,015 INFO L129 PetriNetUnfolder]: 52/355 cut-off events. [2021-06-11 20:35:54,015 INFO L130 PetriNetUnfolder]: For 355/365 co-relation queries the response was YES. [2021-06-11 20:35:54,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 355 events. 52/355 cut-off events. For 355/365 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2820 event pairs, 2 based on Foata normal form. 6/358 useless extension candidates. Maximal degree in co-relation 944. Up to 80 conditions per place. [2021-06-11 20:35:54,017 INFO L151 LiptonReduction]: Number of co-enabled transitions 308 [2021-06-11 20:35:54,035 INFO L163 LiptonReduction]: Checked pairs total: 13 [2021-06-11 20:35:54,035 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 20:35:54,036 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-06-11 20:35:54,036 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 454 flow [2021-06-11 20:35:54,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,037 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:54,037 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] [2021-06-11 20:35:54,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-11 20:35:54,037 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:54,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:54,037 INFO L82 PathProgramCache]: Analyzing trace with hash -989561403, now seen corresponding path program 4 times [2021-06-11 20:35:54,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:54,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738793697] [2021-06-11 20:35:54,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:54,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:54,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738793697] [2021-06-11 20:35:54,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:54,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 20:35:54,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599016729] [2021-06-11 20:35:54,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 20:35:54,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:54,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 20:35:54,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-11 20:35:54,084 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 66 [2021-06-11 20:35:54,084 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 67 transitions, 454 flow. Second operand has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:54,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 66 [2021-06-11 20:35:54,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:54,183 INFO L129 PetriNetUnfolder]: 43/257 cut-off events. [2021-06-11 20:35:54,184 INFO L130 PetriNetUnfolder]: For 387/417 co-relation queries the response was YES. [2021-06-11 20:35:54,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 257 events. 43/257 cut-off events. For 387/417 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1643 event pairs, 2 based on Foata normal form. 9/260 useless extension candidates. Maximal degree in co-relation 761. Up to 82 conditions per place. [2021-06-11 20:35:54,185 INFO L132 encePairwiseOnDemand]: 58/66 looper letters, 10 selfloop transitions, 6 changer transitions 7/64 dead transitions. [2021-06-11 20:35:54,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 64 transitions, 470 flow [2021-06-11 20:35:54,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 20:35:54,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 20:35:54,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 396 transitions. [2021-06-11 20:35:54,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-06-11 20:35:54,186 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 396 transitions. [2021-06-11 20:35:54,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 396 transitions. [2021-06-11 20:35:54,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:54,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 396 transitions. [2021-06-11 20:35:54,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 44.0) internal successors, (396), 9 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,187 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,187 INFO L185 Difference]: Start difference. First operand has 82 places, 67 transitions, 454 flow. Second operand 9 states and 396 transitions. [2021-06-11 20:35:54,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 64 transitions, 470 flow [2021-06-11 20:35:54,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 64 transitions, 438 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-06-11 20:35:54,189 INFO L241 Difference]: Finished difference. Result has 81 places, 56 transitions, 343 flow [2021-06-11 20:35:54,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=343, PETRI_PLACES=81, PETRI_TRANSITIONS=56} [2021-06-11 20:35:54,190 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 48 predicate places. [2021-06-11 20:35:54,190 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:54,190 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 56 transitions, 343 flow [2021-06-11 20:35:54,190 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 56 transitions, 343 flow [2021-06-11 20:35:54,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 56 transitions, 343 flow [2021-06-11 20:35:54,198 INFO L129 PetriNetUnfolder]: 40/217 cut-off events. [2021-06-11 20:35:54,198 INFO L130 PetriNetUnfolder]: For 158/164 co-relation queries the response was YES. [2021-06-11 20:35:54,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 217 events. 40/217 cut-off events. For 158/164 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1375 event pairs, 2 based on Foata normal form. 6/220 useless extension candidates. Maximal degree in co-relation 579. Up to 47 conditions per place. [2021-06-11 20:35:54,199 INFO L151 LiptonReduction]: Number of co-enabled transitions 218 [2021-06-11 20:35:54,200 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 20:35:54,200 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:54,200 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 20:35:54,201 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 343 flow [2021-06-11 20:35:54,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,201 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:54,201 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] [2021-06-11 20:35:54,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-11 20:35:54,201 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:54,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:54,201 INFO L82 PathProgramCache]: Analyzing trace with hash -592596216, now seen corresponding path program 3 times [2021-06-11 20:35:54,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:54,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124588764] [2021-06-11 20:35:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:54,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,236 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-06-11 20:35:54,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 20:35:54,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:54,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124588764] [2021-06-11 20:35:54,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:54,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 20:35:54,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836465706] [2021-06-11 20:35:54,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 20:35:54,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:54,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 20:35:54,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-11 20:35:54,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 66 [2021-06-11 20:35:54,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 343 flow. Second operand has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:54,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 66 [2021-06-11 20:35:54,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:54,313 INFO L129 PetriNetUnfolder]: 42/225 cut-off events. [2021-06-11 20:35:54,313 INFO L130 PetriNetUnfolder]: For 313/341 co-relation queries the response was YES. [2021-06-11 20:35:54,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 225 events. 42/225 cut-off events. For 313/341 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1404 event pairs, 0 based on Foata normal form. 15/240 useless extension candidates. Maximal degree in co-relation 688. Up to 49 conditions per place. [2021-06-11 20:35:54,314 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 6 selfloop transitions, 11 changer transitions 0/58 dead transitions. [2021-06-11 20:35:54,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 58 transitions, 389 flow [2021-06-11 20:35:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 20:35:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 20:35:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 352 transitions. [2021-06-11 20:35:54,315 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-06-11 20:35:54,315 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 352 transitions. [2021-06-11 20:35:54,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 352 transitions. [2021-06-11 20:35:54,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:54,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 352 transitions. [2021-06-11 20:35:54,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 44.0) internal successors, (352), 8 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) [2021-06-11 20:35:54,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,316 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,316 INFO L185 Difference]: Start difference. First operand has 69 places, 56 transitions, 343 flow. Second operand 8 states and 352 transitions. [2021-06-11 20:35:54,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 58 transitions, 389 flow [2021-06-11 20:35:54,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 58 transitions, 345 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-06-11 20:35:54,318 INFO L241 Difference]: Finished difference. Result has 66 places, 57 transitions, 336 flow [2021-06-11 20:35:54,318 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=336, PETRI_PLACES=66, PETRI_TRANSITIONS=57} [2021-06-11 20:35:54,318 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 33 predicate places. [2021-06-11 20:35:54,318 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:54,319 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 57 transitions, 336 flow [2021-06-11 20:35:54,319 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 57 transitions, 336 flow [2021-06-11 20:35:54,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 57 transitions, 336 flow [2021-06-11 20:35:54,326 INFO L129 PetriNetUnfolder]: 42/235 cut-off events. [2021-06-11 20:35:54,326 INFO L130 PetriNetUnfolder]: For 200/210 co-relation queries the response was YES. [2021-06-11 20:35:54,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 235 events. 42/235 cut-off events. For 200/210 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1509 event pairs, 2 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 589. Up to 49 conditions per place. [2021-06-11 20:35:54,328 INFO L151 LiptonReduction]: Number of co-enabled transitions 210 [2021-06-11 20:35:54,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:54,355 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 20:35:54,355 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 20:35:54,355 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-06-11 20:35:54,355 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 57 transitions, 338 flow [2021-06-11 20:35:54,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,355 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:54,355 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] [2021-06-11 20:35:54,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-11 20:35:54,355 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:54,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:54,356 INFO L82 PathProgramCache]: Analyzing trace with hash 175256887, now seen corresponding path program 5 times [2021-06-11 20:35:54,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:54,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120016255] [2021-06-11 20:35:54,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:54,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 20:35:54,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:54,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:54,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120016255] [2021-06-11 20:35:54,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:54,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 20:35:54,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821111822] [2021-06-11 20:35:54,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 20:35:54,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:54,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 20:35:54,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-11 20:35:54,397 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 67 [2021-06-11 20:35:54,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 338 flow. Second operand has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:54,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 67 [2021-06-11 20:35:54,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:54,479 INFO L129 PetriNetUnfolder]: 16/166 cut-off events. [2021-06-11 20:35:54,480 INFO L130 PetriNetUnfolder]: For 231/254 co-relation queries the response was YES. [2021-06-11 20:35:54,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 166 events. 16/166 cut-off events. For 231/254 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1004 event pairs, 2 based on Foata normal form. 11/176 useless extension candidates. Maximal degree in co-relation 432. Up to 37 conditions per place. [2021-06-11 20:35:54,480 INFO L132 encePairwiseOnDemand]: 57/67 looper letters, 4 selfloop transitions, 6 changer transitions 6/57 dead transitions. [2021-06-11 20:35:54,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 57 transitions, 367 flow [2021-06-11 20:35:54,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 20:35:54,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 20:35:54,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 351 transitions. [2021-06-11 20:35:54,485 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6548507462686567 [2021-06-11 20:35:54,485 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 351 transitions. [2021-06-11 20:35:54,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 351 transitions. [2021-06-11 20:35:54,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:54,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 351 transitions. [2021-06-11 20:35:54,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 43.875) internal successors, (351), 8 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,487 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) [2021-06-11 20:35:54,487 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) [2021-06-11 20:35:54,487 INFO L185 Difference]: Start difference. First operand has 66 places, 57 transitions, 338 flow. Second operand 8 states and 351 transitions. [2021-06-11 20:35:54,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 57 transitions, 367 flow [2021-06-11 20:35:54,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 57 transitions, 349 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-06-11 20:35:54,488 INFO L241 Difference]: Finished difference. Result has 68 places, 51 transitions, 297 flow [2021-06-11 20:35:54,489 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=297, PETRI_PLACES=68, PETRI_TRANSITIONS=51} [2021-06-11 20:35:54,489 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 35 predicate places. [2021-06-11 20:35:54,489 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:54,489 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 51 transitions, 297 flow [2021-06-11 20:35:54,489 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 51 transitions, 297 flow [2021-06-11 20:35:54,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 51 transitions, 297 flow [2021-06-11 20:35:54,494 INFO L129 PetriNetUnfolder]: 14/158 cut-off events. [2021-06-11 20:35:54,494 INFO L130 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2021-06-11 20:35:54,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 158 events. 14/158 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 942 event pairs, 2 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 383. Up to 34 conditions per place. [2021-06-11 20:35:54,495 INFO L151 LiptonReduction]: Number of co-enabled transitions 142 [2021-06-11 20:35:54,512 INFO L163 LiptonReduction]: Checked pairs total: 10 [2021-06-11 20:35:54,512 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 20:35:54,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 20:35:54,513 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 304 flow [2021-06-11 20:35:54,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 20:35:54,513 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] [2021-06-11 20:35:54,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-11 20:35:54,513 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 20:35:54,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 20:35:54,513 INFO L82 PathProgramCache]: Analyzing trace with hash -335004008, now seen corresponding path program 1 times [2021-06-11 20:35:54,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 20:35:54,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819417757] [2021-06-11 20:35:54,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 20:35:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 20:35:54,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,546 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-06-11 20:35:54,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 20:35:54,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 20:35:54,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 20:35:54,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 20:35:54,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819417757] [2021-06-11 20:35:54,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 20:35:54,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 20:35:54,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309797290] [2021-06-11 20:35:54,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 20:35:54,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 20:35:54,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 20:35:54,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-11 20:35:54,554 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 68 [2021-06-11 20:35:54,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 304 flow. Second operand has 7 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 20:35:54,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 68 [2021-06-11 20:35:54,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 20:35:54,601 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-06-11 20:35:54,601 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-06-11 20:35:54,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 37 events. 0/37 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 107 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-06-11 20:35:54,601 INFO L132 encePairwiseOnDemand]: 60/68 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2021-06-11 20:35:54,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 24 transitions, 155 flow [2021-06-11 20:35:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 20:35:54,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 20:35:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 304 transitions. [2021-06-11 20:35:54,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6386554621848739 [2021-06-11 20:35:54,602 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 304 transitions. [2021-06-11 20:35:54,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 304 transitions. [2021-06-11 20:35:54,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 20:35:54,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 304 transitions. [2021-06-11 20:35:54,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.42857142857143) internal successors, (304), 7 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,603 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) [2021-06-11 20:35:54,603 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) [2021-06-11 20:35:54,604 INFO L185 Difference]: Start difference. First operand has 63 places, 51 transitions, 304 flow. Second operand 7 states and 304 transitions. [2021-06-11 20:35:54,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 24 transitions, 155 flow [2021-06-11 20:35:54,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 24 transitions, 112 flow, removed 5 selfloop flow, removed 15 redundant places. [2021-06-11 20:35:54,604 INFO L241 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2021-06-11 20:35:54,604 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2021-06-11 20:35:54,604 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2021-06-11 20:35:54,604 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 20:35:54,604 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 0 transitions, 0 flow [2021-06-11 20:35:54,605 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 0 transitions, 0 flow [2021-06-11 20:35:54,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 20:35:54,605 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 20:35:54,605 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 20:35:54,605 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. [2021-06-11 20:35:54,605 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 20:35:54,605 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 20:35:54,605 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 20:35:54,605 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 20:35:54,606 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 20:35:54,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 20:35:54,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-11 20:35:54,608 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 08:35:54 BasicIcfg [2021-06-11 20:35:54,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 20:35:54,609 INFO L168 Benchmark]: Toolchain (without parser) took 5404.05 ms. Allocated memory was 329.3 MB in the beginning and 396.4 MB in the end (delta: 67.1 MB). Free memory was 310.8 MB in the beginning and 358.4 MB in the end (delta: -47.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.0 GB. [2021-06-11 20:35:54,609 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 329.3 MB. Free memory is still 311.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 20:35:54,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 329.3 MB. Free memory was 310.8 MB in the beginning and 309.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 20:35:54,609 INFO L168 Benchmark]: Boogie Preprocessor took 16.02 ms. Allocated memory is still 329.3 MB. Free memory was 309.2 MB in the beginning and 308.4 MB in the end (delta: 818.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 20:35:54,609 INFO L168 Benchmark]: RCFGBuilder took 188.58 ms. Allocated memory is still 329.3 MB. Free memory was 308.3 MB in the beginning and 295.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-11 20:35:54,609 INFO L168 Benchmark]: TraceAbstraction took 5172.00 ms. Allocated memory was 329.3 MB in the beginning and 396.4 MB in the end (delta: 67.1 MB). Free memory was 294.8 MB in the beginning and 358.4 MB in the end (delta: -63.6 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.0 GB. [2021-06-11 20:35:54,609 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 329.3 MB. Free memory is still 311.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 329.3 MB. Free memory was 310.8 MB in the beginning and 309.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.02 ms. Allocated memory is still 329.3 MB. Free memory was 309.2 MB in the beginning and 308.4 MB in the end (delta: 818.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 188.58 ms. Allocated memory is still 329.3 MB. Free memory was 308.3 MB in the beginning and 295.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5172.00 ms. Allocated memory was 329.3 MB in the beginning and 396.4 MB in the end (delta: 67.1 MB). Free memory was 294.8 MB in the beginning and 358.4 MB in the end (delta: -63.6 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 482.1ms, 46 PlacesBefore, 33 PlacesAfterwards, 36 TransitionsBefore, 23 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 4 FixpointIterations, 5 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 1232 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 514, positive: 418, positive conditional: 418, positive unconditional: 0, negative: 96, negative conditional: 96, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 514, positive: 418, positive conditional: 0, positive unconditional: 418, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 514, positive: 418, positive conditional: 0, positive unconditional: 418, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 150, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 514, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 302, unknown conditional: 0, unknown unconditional: 302] , Statistics on independence cache: Total cache size (in pairs): 302, Positive cache size: 269, Positive conditional cache size: 0, Positive unconditional cache size: 269, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.4ms, 39 PlacesBefore, 37 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 227 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 80, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 80, positive: 62, positive conditional: 6, positive unconditional: 56, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 62, positive conditional: 6, positive unconditional: 56, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 80, positive: 53, positive conditional: 6, positive unconditional: 47, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 312, Positive cache size: 278, Positive conditional cache size: 0, Positive unconditional cache size: 278, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.1ms, 50 PlacesBefore, 50 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 66 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 20, positive: 16, positive conditional: 2, positive unconditional: 14, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 16, positive conditional: 2, positive unconditional: 14, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 1, positive unconditional: 3, 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: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 5, positive conditional: 3, positive unconditional: 2, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20, positive: 12, positive conditional: 1, positive unconditional: 11, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 5, unknown conditional: 2, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 317, Positive cache size: 282, Positive conditional cache size: 1, Positive unconditional cache size: 281, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.3ms, 64 PlacesBefore, 62 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 442 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 15, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 317, Positive cache size: 282, Positive conditional cache size: 1, Positive unconditional cache size: 281, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.4ms, 68 PlacesBefore, 68 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 518 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19, positive: 15, positive conditional: 6, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19, positive: 15, positive conditional: 6, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19, positive: 15, positive conditional: 6, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 317, Positive cache size: 282, Positive conditional cache size: 1, Positive unconditional cache size: 281, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.0ms, 75 PlacesBefore, 75 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 524 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 317, Positive cache size: 282, Positive conditional cache size: 1, Positive unconditional cache size: 281, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.7ms, 80 PlacesBefore, 72 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 17, positive conditional: 7, positive unconditional: 10, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 17, positive conditional: 7, positive unconditional: 10, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21, positive: 17, positive conditional: 7, positive unconditional: 10, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 317, Positive cache size: 282, Positive conditional cache size: 1, Positive unconditional cache size: 281, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.0ms, 77 PlacesBefore, 75 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 532 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 74 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 17, positive conditional: 8, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 17, positive conditional: 8, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21, positive: 17, positive conditional: 8, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 317, Positive cache size: 282, Positive conditional cache size: 1, Positive unconditional cache size: 281, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.2ms, 82 PlacesBefore, 80 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 74 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 20, positive conditional: 9, positive unconditional: 11, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 20, positive conditional: 9, positive unconditional: 11, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 20, positive conditional: 9, positive unconditional: 11, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 317, Positive cache size: 282, Positive conditional cache size: 1, Positive unconditional cache size: 281, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 109.3ms, 82 PlacesBefore, 82 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 576 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 180 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 73, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 73, positive: 65, positive conditional: 45, positive unconditional: 20, negative: 8, negative conditional: 4, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 65, positive conditional: 45, positive unconditional: 20, negative: 8, negative conditional: 4, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 6, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 58, positive conditional: 39, positive unconditional: 19, negative: 8, negative conditional: 4, negative unconditional: 4, unknown: 7, unknown conditional: 6, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 324, Positive cache size: 289, Positive conditional cache size: 7, Positive unconditional cache size: 282, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.4ms, 86 PlacesBefore, 86 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 576 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 74 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22, positive: 18, positive conditional: 9, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 18, positive conditional: 9, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 18, positive conditional: 9, positive unconditional: 9, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 324, Positive cache size: 289, Positive conditional cache size: 7, Positive unconditional cache size: 282, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 125.8ms, 81 PlacesBefore, 71 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 426 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 128 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 69, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 69, positive: 65, positive conditional: 45, positive unconditional: 20, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 69, positive: 65, positive conditional: 45, positive unconditional: 20, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, positive: 59, positive conditional: 42, positive unconditional: 17, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 6, unknown conditional: 3, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 330, Positive cache size: 295, Positive conditional cache size: 10, Positive unconditional cache size: 285, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.0ms, 66 PlacesBefore, 65 PlacesAfterwards, 62 TransitionsBefore, 62 TransitionsAfterwards, 332 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 120 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 330, Positive cache size: 295, Positive conditional cache size: 10, Positive unconditional cache size: 285, Negative cache size: 35, Negative conditional cache size: 1, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.7ms, 76 PlacesBefore, 76 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 472 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 5, positive conditional: 4, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 1, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 332, Positive cache size: 296, Positive conditional cache size: 10, Positive unconditional cache size: 286, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.5ms, 77 PlacesBefore, 77 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 333, Positive cache size: 297, Positive conditional cache size: 10, Positive unconditional cache size: 287, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.1ms, 85 PlacesBefore, 85 PlacesAfterwards, 79 TransitionsBefore, 79 TransitionsAfterwards, 528 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 333, Positive cache size: 297, Positive conditional cache size: 10, Positive unconditional cache size: 287, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.0ms, 87 PlacesBefore, 84 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 376 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 333, Positive cache size: 297, Positive conditional cache size: 10, Positive unconditional cache size: 287, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.1ms, 82 PlacesBefore, 82 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 374 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 333, Positive cache size: 297, Positive conditional cache size: 10, Positive unconditional cache size: 287, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.6ms, 86 PlacesBefore, 82 PlacesAfterwards, 66 TransitionsBefore, 67 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 13 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13, positive: 13, positive conditional: 9, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 9, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 4, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 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: 13, positive: 6, positive conditional: 5, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7, unknown conditional: 4, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 340, Positive cache size: 304, Positive conditional cache size: 14, Positive unconditional cache size: 290, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.1ms, 81 PlacesBefore, 69 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 340, Positive cache size: 304, Positive conditional cache size: 14, Positive unconditional cache size: 290, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.9ms, 66 PlacesBefore, 66 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 2, positive conditional: 2, 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): 340, Positive cache size: 304, Positive conditional cache size: 14, Positive unconditional cache size: 290, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.1ms, 68 PlacesBefore, 63 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10, positive: 10, positive conditional: 7, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 7, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10, positive: 10, positive conditional: 7, positive unconditional: 3, 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): 340, Positive cache size: 304, Positive conditional cache size: 14, Positive unconditional cache size: 290, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 43 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 340, Positive cache size: 304, Positive conditional cache size: 14, Positive unconditional cache size: 290, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 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: 13.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5092.0ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2426.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 609.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 125 SDtfs, 313 SDslu, 72 SDs, 0 SdLazy, 1284 SolverSat, 158 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 526.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1080.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=576occurred in iteration=15, InterpolantAutomatonStates: 177, 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: 29.5ms SsaConstructionTime, 114.4ms SatisfiabilityAnalysisTime, 878.5ms InterpolantComputationTime, 482 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 460 ConstructedInterpolants, 0 QuantifiedInterpolants, 1724 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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...