/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 05:12:28,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 05:12:28,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 05:12:28,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 05:12:28,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 05:12:28,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 05:12:28,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 05:12:28,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 05:12:28,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 05:12:28,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 05:12:28,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 05:12:28,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 05:12:28,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 05:12:28,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 05:12:28,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 05:12:28,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 05:12:28,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 05:12:28,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 05:12:28,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 05:12:28,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 05:12:28,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 05:12:28,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 05:12:28,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 05:12:28,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 05:12:28,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 05:12:28,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 05:12:28,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 05:12:28,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 05:12:28,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 05:12:28,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 05:12:28,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 05:12:28,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 05:12:28,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 05:12:28,662 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 05:12:28,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 05:12:28,662 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 05:12:28,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 05:12:28,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 05:12:28,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 05:12:28,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 05:12:28,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 05:12:28,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 05:12:28,664 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 05:12:28,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 05:12:28,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 05:12:28,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 05:12:28,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 05:12:28,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 05:12:28,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 05:12:28,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 05:12:28,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 05:12:28,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 05:12:28,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 05:12:28,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 05:12:28,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 05:12:28,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 05:12:28,665 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 05:12:28,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 05:12:28,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 05:12:28,665 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 05:12:28,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 05:12:28,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 05:12:28,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 05:12:28,928 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 05:12:28,928 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 05:12:28,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-3.wvr.bpl [2021-03-26 05:12:28,944 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-3.wvr.bpl' [2021-03-26 05:12:28,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 05:12:28,962 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 05:12:28,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 05:12:28,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 05:12:28,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 05:12:28,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... [2021-03-26 05:12:28,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... [2021-03-26 05:12:28,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 05:12:28,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 05:12:28,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 05:12:28,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 05:12:28,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... [2021-03-26 05:12:28,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... [2021-03-26 05:12:28,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... [2021-03-26 05:12:28,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... [2021-03-26 05:12:29,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... [2021-03-26 05:12:29,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... [2021-03-26 05:12:29,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... [2021-03-26 05:12:29,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 05:12:29,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 05:12:29,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 05:12:29,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 05:12:29,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 05:12:29,047 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 05:12:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 05:12:29,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 05:12:29,049 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 05:12:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 05:12:29,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 05:12:29,049 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 05:12:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 05:12:29,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 05:12:29,049 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-26 05:12:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-26 05:12:29,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-26 05:12:29,050 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 05:12:29,184 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 05:12:29,184 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 05:12:29,185 INFO L202 PluginConnector]: Adding new model bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:12:29 BoogieIcfgContainer [2021-03-26 05:12:29,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 05:12:29,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 05:12:29,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 05:12:29,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 05:12:29,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:12:28" (1/2) ... [2021-03-26 05:12:29,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2950f9f6 and model type bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 05:12:29, skipping insertion in model container [2021-03-26 05:12:29,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:12:29" (2/2) ... [2021-03-26 05:12:29,189 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-3.wvr.bpl [2021-03-26 05:12:29,192 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 05:12:29,194 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 05:12:29,195 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 05:12:29,221 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-26 05:12:29,243 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 05:12:29,257 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 05:12:29,257 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 05:12:29,257 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 05:12:29,257 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 05:12:29,257 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 05:12:29,257 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 05:12:29,257 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 05:12:29,257 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 05:12:29,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 53 transitions, 130 flow [2021-03-26 05:12:29,317 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-03-26 05:12:29,317 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 05:12:29,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 0/50 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 05:12:29,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 53 transitions, 130 flow [2021-03-26 05:12:29,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 48 transitions, 114 flow [2021-03-26 05:12:29,324 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:29,336 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 48 transitions, 114 flow [2021-03-26 05:12:29,340 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 48 transitions, 114 flow [2021-03-26 05:12:29,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 48 transitions, 114 flow [2021-03-26 05:12:29,368 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-03-26 05:12:29,368 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 05:12:29,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 0/48 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 05:12:29,370 INFO L142 LiptonReduction]: Number of co-enabled transitions 1170 [2021-03-26 05:12:29,811 INFO L154 LiptonReduction]: Checked pairs total: 2728 [2021-03-26 05:12:29,811 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 05:12:29,812 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 488 [2021-03-26 05:12:29,841 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-03-26 05:12:29,841 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 05:12:29,841 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:29,842 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:29,842 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:29,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1589473928, now seen corresponding path program 1 times [2021-03-26 05:12:29,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:29,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954853656] [2021-03-26 05:12:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:29,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:29,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:29,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:29,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:29,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:29,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:30,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:30,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:30,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:30,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:30,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:30,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:30,039 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 05:12:30,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:30,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:30,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954853656] [2021-03-26 05:12:30,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:30,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:12:30,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922171373] [2021-03-26 05:12:30,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:12:30,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:30,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:12:30,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:12:30,076 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 63 [2021-03-26 05:12:30,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 94 flow. Second operand has 9 states, 9 states have (on average 53.888888888888886) internal successors, (485), 9 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:30,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:30,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 63 [2021-03-26 05:12:30,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:30,285 INFO L129 PetriNetUnfolder]: 29/168 cut-off events. [2021-03-26 05:12:30,285 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-03-26 05:12:30,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 168 events. 29/168 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 852 event pairs, 3 based on Foata normal form. 1/168 useless extension candidates. Maximal degree in co-relation 249. Up to 28 conditions per place. [2021-03-26 05:12:30,290 INFO L132 encePairwiseOnDemand]: 55/63 looper letters, 21 selfloop transitions, 15 changer transitions 2/68 dead transitions. [2021-03-26 05:12:30,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 68 transitions, 230 flow [2021-03-26 05:12:30,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 05:12:30,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 05:12:30,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 622 transitions. [2021-03-26 05:12:30,303 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8975468975468975 [2021-03-26 05:12:30,303 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 622 transitions. [2021-03-26 05:12:30,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 622 transitions. [2021-03-26 05:12:30,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:30,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 622 transitions. [2021-03-26 05:12:30,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.54545454545455) internal successors, (622), 11 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:30,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 63.0) internal successors, (756), 12 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:30,317 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 63.0) internal successors, (756), 12 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:30,318 INFO L185 Difference]: Start difference. First operand has 48 places, 38 transitions, 94 flow. Second operand 11 states and 622 transitions. [2021-03-26 05:12:30,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 68 transitions, 230 flow [2021-03-26 05:12:30,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 218 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 05:12:30,325 INFO L241 Difference]: Finished difference. Result has 56 places, 54 transitions, 174 flow [2021-03-26 05:12:30,326 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=174, PETRI_PLACES=56, PETRI_TRANSITIONS=54} [2021-03-26 05:12:30,329 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2021-03-26 05:12:30,329 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:30,329 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 54 transitions, 174 flow [2021-03-26 05:12:30,330 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 54 transitions, 174 flow [2021-03-26 05:12:30,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 54 transitions, 174 flow [2021-03-26 05:12:30,348 INFO L129 PetriNetUnfolder]: 9/112 cut-off events. [2021-03-26 05:12:30,348 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-26 05:12:30,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 112 events. 9/112 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 465 event pairs, 2 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 162. Up to 12 conditions per place. [2021-03-26 05:12:30,350 INFO L142 LiptonReduction]: Number of co-enabled transitions 978 [2021-03-26 05:12:30,413 INFO L154 LiptonReduction]: Checked pairs total: 3129 [2021-03-26 05:12:30,413 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 05:12:30,413 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-26 05:12:30,416 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 54 transitions, 176 flow [2021-03-26 05:12:30,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 53.888888888888886) internal successors, (485), 9 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:30,417 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:30,417 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:30,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 05:12:30,418 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:30,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:30,418 INFO L82 PathProgramCache]: Analyzing trace with hash -748688888, now seen corresponding path program 2 times [2021-03-26 05:12:30,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:30,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961105004] [2021-03-26 05:12:30,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:30,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:30,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:12:30,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:30,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:12:30,522 INFO L142 QuantifierPusher]: treesize reduction 19, result has 57.8 percent of original size [2021-03-26 05:12:30,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 05:12:30,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:30,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 05:12:30,535 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-03-26 05:12:30,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:12:30,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:30,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:30,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:30,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:12:30,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:30,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:30,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:30,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961105004] [2021-03-26 05:12:30,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:30,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:12:30,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173001858] [2021-03-26 05:12:30,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:12:30,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:30,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:12:30,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:12:30,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 65 [2021-03-26 05:12:30,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 54 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:30,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:30,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 65 [2021-03-26 05:12:30,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:30,873 INFO L129 PetriNetUnfolder]: 865/1981 cut-off events. [2021-03-26 05:12:30,873 INFO L130 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2021-03-26 05:12:30,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3871 conditions, 1981 events. 865/1981 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 13832 event pairs, 234 based on Foata normal form. 24/1915 useless extension candidates. Maximal degree in co-relation 3854. Up to 1085 conditions per place. [2021-03-26 05:12:30,884 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 51 selfloop transitions, 21 changer transitions 0/107 dead transitions. [2021-03-26 05:12:30,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 426 flow [2021-03-26 05:12:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 05:12:30,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 05:12:30,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 361 transitions. [2021-03-26 05:12:30,886 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6942307692307692 [2021-03-26 05:12:30,886 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 361 transitions. [2021-03-26 05:12:30,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 361 transitions. [2021-03-26 05:12:30,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:30,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 361 transitions. [2021-03-26 05:12:30,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:30,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:30,889 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:30,889 INFO L185 Difference]: Start difference. First operand has 54 places, 54 transitions, 176 flow. Second operand 8 states and 361 transitions. [2021-03-26 05:12:30,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 426 flow [2021-03-26 05:12:30,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 107 transitions, 424 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 05:12:30,893 INFO L241 Difference]: Finished difference. Result has 64 places, 75 transitions, 300 flow [2021-03-26 05:12:30,893 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=300, PETRI_PLACES=64, PETRI_TRANSITIONS=75} [2021-03-26 05:12:30,894 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 16 predicate places. [2021-03-26 05:12:30,894 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:30,894 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 75 transitions, 300 flow [2021-03-26 05:12:30,895 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 75 transitions, 300 flow [2021-03-26 05:12:30,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 75 transitions, 300 flow [2021-03-26 05:12:30,921 INFO L129 PetriNetUnfolder]: 82/422 cut-off events. [2021-03-26 05:12:30,921 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2021-03-26 05:12:30,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 422 events. 82/422 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2829 event pairs, 9 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 720. Up to 74 conditions per place. [2021-03-26 05:12:30,924 INFO L142 LiptonReduction]: Number of co-enabled transitions 1276 [2021-03-26 05:12:31,039 INFO L154 LiptonReduction]: Checked pairs total: 1581 [2021-03-26 05:12:31,039 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:12:31,040 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146 [2021-03-26 05:12:31,041 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 75 transitions, 300 flow [2021-03-26 05:12:31,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,041 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:31,041 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:31,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 05:12:31,041 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:31,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:31,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1721158409, now seen corresponding path program 1 times [2021-03-26 05:12:31,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:31,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887568164] [2021-03-26 05:12:31,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:31,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:31,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:31,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:31,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887568164] [2021-03-26 05:12:31,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:31,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:12:31,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129569846] [2021-03-26 05:12:31,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:12:31,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:31,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:12:31,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:12:31,079 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 65 [2021-03-26 05:12:31,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 75 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:31,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 65 [2021-03-26 05:12:31,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:31,109 INFO L129 PetriNetUnfolder]: 75/410 cut-off events. [2021-03-26 05:12:31,109 INFO L130 PetriNetUnfolder]: For 113/119 co-relation queries the response was YES. [2021-03-26 05:12:31,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 410 events. 75/410 cut-off events. For 113/119 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2700 event pairs, 19 based on Foata normal form. 19/413 useless extension candidates. Maximal degree in co-relation 769. Up to 63 conditions per place. [2021-03-26 05:12:31,111 INFO L132 encePairwiseOnDemand]: 61/65 looper letters, 3 selfloop transitions, 8 changer transitions 0/75 dead transitions. [2021-03-26 05:12:31,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 75 transitions, 322 flow [2021-03-26 05:12:31,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:12:31,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:12:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2021-03-26 05:12:31,112 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9128205128205128 [2021-03-26 05:12:31,112 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2021-03-26 05:12:31,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2021-03-26 05:12:31,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:31,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2021-03-26 05:12:31,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,113 INFO L185 Difference]: Start difference. First operand has 64 places, 75 transitions, 300 flow. Second operand 3 states and 178 transitions. [2021-03-26 05:12:31,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 75 transitions, 322 flow [2021-03-26 05:12:31,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 322 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 05:12:31,117 INFO L241 Difference]: Finished difference. Result has 67 places, 75 transitions, 328 flow [2021-03-26 05:12:31,117 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=67, PETRI_TRANSITIONS=75} [2021-03-26 05:12:31,118 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 19 predicate places. [2021-03-26 05:12:31,118 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:31,118 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 75 transitions, 328 flow [2021-03-26 05:12:31,118 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 75 transitions, 328 flow [2021-03-26 05:12:31,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 75 transitions, 328 flow [2021-03-26 05:12:31,138 INFO L129 PetriNetUnfolder]: 77/429 cut-off events. [2021-03-26 05:12:31,139 INFO L130 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2021-03-26 05:12:31,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 881 conditions, 429 events. 77/429 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2835 event pairs, 14 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 823. Up to 67 conditions per place. [2021-03-26 05:12:31,142 INFO L142 LiptonReduction]: Number of co-enabled transitions 1194 [2021-03-26 05:12:31,181 INFO L154 LiptonReduction]: Checked pairs total: 1322 [2021-03-26 05:12:31,182 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:12:31,182 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-26 05:12:31,183 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 75 transitions, 328 flow [2021-03-26 05:12:31,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,184 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:31,184 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:31,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 05:12:31,184 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:31,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:31,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1916685977, now seen corresponding path program 2 times [2021-03-26 05:12:31,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:31,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286543437] [2021-03-26 05:12:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:31,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:31,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:31,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:31,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286543437] [2021-03-26 05:12:31,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:31,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:12:31,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485987104] [2021-03-26 05:12:31,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:12:31,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:31,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:12:31,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:12:31,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 65 [2021-03-26 05:12:31,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 75 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,220 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:31,220 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 65 [2021-03-26 05:12:31,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:31,248 INFO L129 PetriNetUnfolder]: 81/459 cut-off events. [2021-03-26 05:12:31,248 INFO L130 PetriNetUnfolder]: For 218/222 co-relation queries the response was YES. [2021-03-26 05:12:31,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 459 events. 81/459 cut-off events. For 218/222 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3088 event pairs, 26 based on Foata normal form. 11/454 useless extension candidates. Maximal degree in co-relation 951. Up to 62 conditions per place. [2021-03-26 05:12:31,250 INFO L132 encePairwiseOnDemand]: 61/65 looper letters, 3 selfloop transitions, 9 changer transitions 0/75 dead transitions. [2021-03-26 05:12:31,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 75 transitions, 352 flow [2021-03-26 05:12:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:12:31,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:12:31,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2021-03-26 05:12:31,251 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9128205128205128 [2021-03-26 05:12:31,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2021-03-26 05:12:31,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2021-03-26 05:12:31,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:31,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2021-03-26 05:12:31,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,253 INFO L185 Difference]: Start difference. First operand has 67 places, 75 transitions, 328 flow. Second operand 3 states and 178 transitions. [2021-03-26 05:12:31,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 75 transitions, 352 flow [2021-03-26 05:12:31,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 75 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 05:12:31,257 INFO L241 Difference]: Finished difference. Result has 68 places, 75 transitions, 343 flow [2021-03-26 05:12:31,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=68, PETRI_TRANSITIONS=75} [2021-03-26 05:12:31,257 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2021-03-26 05:12:31,257 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:31,257 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 75 transitions, 343 flow [2021-03-26 05:12:31,257 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 75 transitions, 343 flow [2021-03-26 05:12:31,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 75 transitions, 343 flow [2021-03-26 05:12:31,276 INFO L129 PetriNetUnfolder]: 83/463 cut-off events. [2021-03-26 05:12:31,276 INFO L130 PetriNetUnfolder]: For 167/168 co-relation queries the response was YES. [2021-03-26 05:12:31,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 463 events. 83/463 cut-off events. For 167/168 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3105 event pairs, 17 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 923. Up to 66 conditions per place. [2021-03-26 05:12:31,280 INFO L142 LiptonReduction]: Number of co-enabled transitions 1140 [2021-03-26 05:12:31,322 INFO L154 LiptonReduction]: Checked pairs total: 1053 [2021-03-26 05:12:31,322 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:12:31,322 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-26 05:12:31,325 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 75 transitions, 343 flow [2021-03-26 05:12:31,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,325 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:31,326 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:31,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 05:12:31,326 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:31,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1289155665, now seen corresponding path program 3 times [2021-03-26 05:12:31,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:31,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708085433] [2021-03-26 05:12:31,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:31,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:12:31,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:12:31,414 INFO L142 QuantifierPusher]: treesize reduction 17, result has 57.5 percent of original size [2021-03-26 05:12:31,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 05:12:31,420 INFO L142 QuantifierPusher]: treesize reduction 17, result has 54.1 percent of original size [2021-03-26 05:12:31,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 05:12:31,425 INFO L142 QuantifierPusher]: treesize reduction 17, result has 54.1 percent of original size [2021-03-26 05:12:31,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 05:12:31,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:31,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:31,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:12:31,447 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 05:12:31,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:12:31,454 INFO L142 QuantifierPusher]: treesize reduction 11, result has 52.2 percent of original size [2021-03-26 05:12:31,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:12:31,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:31,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708085433] [2021-03-26 05:12:31,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:31,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:12:31,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084417856] [2021-03-26 05:12:31,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:12:31,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:31,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:12:31,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:12:31,468 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 65 [2021-03-26 05:12:31,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 75 transitions, 343 flow. Second operand has 8 states, 8 states have (on average 38.375) internal successors, (307), 8 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:31,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 65 [2021-03-26 05:12:31,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:31,783 INFO L129 PetriNetUnfolder]: 1214/2873 cut-off events. [2021-03-26 05:12:31,783 INFO L130 PetriNetUnfolder]: For 1656/1668 co-relation queries the response was YES. [2021-03-26 05:12:31,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7329 conditions, 2873 events. 1214/2873 cut-off events. For 1656/1668 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 22050 event pairs, 395 based on Foata normal form. 32/2787 useless extension candidates. Maximal degree in co-relation 7184. Up to 1494 conditions per place. [2021-03-26 05:12:31,799 INFO L132 encePairwiseOnDemand]: 48/65 looper letters, 81 selfloop transitions, 35 changer transitions 0/151 dead transitions. [2021-03-26 05:12:31,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 151 transitions, 851 flow [2021-03-26 05:12:31,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 05:12:31,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 05:12:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 499 transitions. [2021-03-26 05:12:31,800 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6979020979020979 [2021-03-26 05:12:31,800 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 499 transitions. [2021-03-26 05:12:31,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 499 transitions. [2021-03-26 05:12:31,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:31,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 499 transitions. [2021-03-26 05:12:31,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 45.36363636363637) internal successors, (499), 11 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,803 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,803 INFO L185 Difference]: Start difference. First operand has 68 places, 75 transitions, 343 flow. Second operand 11 states and 499 transitions. [2021-03-26 05:12:31,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 151 transitions, 851 flow [2021-03-26 05:12:31,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 151 transitions, 811 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 05:12:31,809 INFO L241 Difference]: Finished difference. Result has 84 places, 100 transitions, 590 flow [2021-03-26 05:12:31,810 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=590, PETRI_PLACES=84, PETRI_TRANSITIONS=100} [2021-03-26 05:12:31,810 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 36 predicate places. [2021-03-26 05:12:31,810 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:31,810 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 100 transitions, 590 flow [2021-03-26 05:12:31,810 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 100 transitions, 590 flow [2021-03-26 05:12:31,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 100 transitions, 590 flow [2021-03-26 05:12:31,857 INFO L129 PetriNetUnfolder]: 238/990 cut-off events. [2021-03-26 05:12:31,857 INFO L130 PetriNetUnfolder]: For 756/781 co-relation queries the response was YES. [2021-03-26 05:12:31,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2604 conditions, 990 events. 238/990 cut-off events. For 756/781 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 7861 event pairs, 104 based on Foata normal form. 8/922 useless extension candidates. Maximal degree in co-relation 2508. Up to 148 conditions per place. [2021-03-26 05:12:31,866 INFO L142 LiptonReduction]: Number of co-enabled transitions 1410 [2021-03-26 05:12:31,915 INFO L154 LiptonReduction]: Checked pairs total: 1139 [2021-03-26 05:12:31,915 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:12:31,915 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 105 [2021-03-26 05:12:31,916 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 100 transitions, 590 flow [2021-03-26 05:12:31,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 38.375) internal successors, (307), 8 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:31,916 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:31,917 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:31,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 05:12:31,917 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:31,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:31,917 INFO L82 PathProgramCache]: Analyzing trace with hash -2110470273, now seen corresponding path program 4 times [2021-03-26 05:12:31,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:31,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997049618] [2021-03-26 05:12:31,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:31,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:12:31,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:12:31,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:12:31,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:12:31,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:31,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 05:12:31,982 INFO L142 QuantifierPusher]: treesize reduction 8, result has 70.4 percent of original size [2021-03-26 05:12:31,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:12:31,992 INFO L142 QuantifierPusher]: treesize reduction 8, result has 70.4 percent of original size [2021-03-26 05:12:31,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:12:32,005 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-03-26 05:12:32,006 INFO L147 QuantifierPusher]: treesize reduction 5, result has 81.5 percent of original size 22 [2021-03-26 05:12:32,030 INFO L142 QuantifierPusher]: treesize reduction 23, result has 52.1 percent of original size [2021-03-26 05:12:32,031 INFO L147 QuantifierPusher]: treesize reduction 5, result has 80.0 percent of original size 20 [2021-03-26 05:12:32,056 INFO L142 QuantifierPusher]: treesize reduction 19, result has 44.1 percent of original size [2021-03-26 05:12:32,056 INFO L147 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size 10 [2021-03-26 05:12:32,072 INFO L142 QuantifierPusher]: treesize reduction 10, result has 60.0 percent of original size [2021-03-26 05:12:32,072 INFO L147 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size 10 [2021-03-26 05:12:32,073 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 05:12:32,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:32,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:32,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:32,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:32,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997049618] [2021-03-26 05:12:32,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:32,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 05:12:32,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740923832] [2021-03-26 05:12:32,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 05:12:32,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:32,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 05:12:32,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-03-26 05:12:32,077 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 65 [2021-03-26 05:12:32,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 100 transitions, 590 flow. Second operand has 10 states, 10 states have (on average 37.9) internal successors, (379), 10 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:32,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:32,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 65 [2021-03-26 05:12:32,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:32,846 INFO L129 PetriNetUnfolder]: 2524/5944 cut-off events. [2021-03-26 05:12:32,847 INFO L130 PetriNetUnfolder]: For 8675/8768 co-relation queries the response was YES. [2021-03-26 05:12:32,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19011 conditions, 5944 events. 2524/5944 cut-off events. For 8675/8768 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 53033 event pairs, 419 based on Foata normal form. 71/5789 useless extension candidates. Maximal degree in co-relation 18797. Up to 1833 conditions per place. [2021-03-26 05:12:32,929 INFO L132 encePairwiseOnDemand]: 48/65 looper letters, 135 selfloop transitions, 127 changer transitions 0/297 dead transitions. [2021-03-26 05:12:32,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 297 transitions, 2248 flow [2021-03-26 05:12:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-26 05:12:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-26 05:12:32,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 827 transitions. [2021-03-26 05:12:32,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7068376068376069 [2021-03-26 05:12:32,932 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 827 transitions. [2021-03-26 05:12:32,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 827 transitions. [2021-03-26 05:12:32,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:32,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 827 transitions. [2021-03-26 05:12:32,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 45.94444444444444) internal successors, (827), 18 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:32,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 65.0) internal successors, (1235), 19 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:32,935 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 65.0) internal successors, (1235), 19 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:32,935 INFO L185 Difference]: Start difference. First operand has 84 places, 100 transitions, 590 flow. Second operand 18 states and 827 transitions. [2021-03-26 05:12:32,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 297 transitions, 2248 flow [2021-03-26 05:12:32,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 297 transitions, 2189 flow, removed 24 selfloop flow, removed 1 redundant places. [2021-03-26 05:12:32,968 INFO L241 Difference]: Finished difference. Result has 113 places, 211 transitions, 1761 flow [2021-03-26 05:12:32,968 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1761, PETRI_PLACES=113, PETRI_TRANSITIONS=211} [2021-03-26 05:12:32,968 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 65 predicate places. [2021-03-26 05:12:32,968 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:32,968 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 211 transitions, 1761 flow [2021-03-26 05:12:32,968 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 211 transitions, 1761 flow [2021-03-26 05:12:32,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 211 transitions, 1761 flow [2021-03-26 05:12:33,172 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([149] L34-->thread1EXIT: Formula: (= v_n1_20 0) InVars {} OutVars{n1=v_n1_20} AuxVars[] AssignedVars[n1][40], [385#true, 67#true, Black: 325#e2, 10#thread1EXITtrue, 276#true, Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), Black: 278#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 348#e3, Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), 352#true, 32#L77true, Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), 38#L64true, Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), 40#thread2EXITtrue, Black: 410#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (<= 2 n2)), Black: 354#(and (<= n1 n3) (<= n3 n2) (<= 0 n3) (<= n2 n1)), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2))]) [2021-03-26 05:12:33,173 INFO L384 tUnfolder$Statistics]: this new event has 29 ancestors and is cut-off event [2021-03-26 05:12:33,173 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2021-03-26 05:12:33,173 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2021-03-26 05:12:33,173 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2021-03-26 05:12:33,220 INFO L129 PetriNetUnfolder]: 1450/4096 cut-off events. [2021-03-26 05:12:33,220 INFO L130 PetriNetUnfolder]: For 11691/11962 co-relation queries the response was YES. [2021-03-26 05:12:33,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14975 conditions, 4096 events. 1450/4096 cut-off events. For 11691/11962 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 39142 event pairs, 416 based on Foata normal form. 56/3800 useless extension candidates. Maximal degree in co-relation 14759. Up to 790 conditions per place. [2021-03-26 05:12:33,359 INFO L142 LiptonReduction]: Number of co-enabled transitions 2666 [2021-03-26 05:12:35,276 INFO L154 LiptonReduction]: Checked pairs total: 6849 [2021-03-26 05:12:35,277 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:12:35,277 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2309 [2021-03-26 05:12:35,278 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 211 transitions, 1763 flow [2021-03-26 05:12:35,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 37.9) internal successors, (379), 10 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:35,278 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:35,278 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:35,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 05:12:35,278 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:35,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:35,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1849283621, now seen corresponding path program 5 times [2021-03-26 05:12:35,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:35,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132957313] [2021-03-26 05:12:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:35,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:35,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:12:35,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:35,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:12:35,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:35,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:35,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:35,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:35,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:35,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 05:12:35,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:35,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 05:12:35,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:35,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 05:12:35,341 INFO L142 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size [2021-03-26 05:12:35,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:12:35,353 INFO L142 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-03-26 05:12:35,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 05:12:35,360 INFO L142 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-03-26 05:12:35,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 05:12:35,369 INFO L142 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-03-26 05:12:35,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 05:12:35,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:35,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:35,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:35,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132957313] [2021-03-26 05:12:35,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:35,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-26 05:12:35,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683441067] [2021-03-26 05:12:35,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 05:12:35,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:35,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 05:12:35,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-03-26 05:12:35,379 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 66 [2021-03-26 05:12:35,379 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 211 transitions, 1763 flow. Second operand has 12 states, 12 states have (on average 37.583333333333336) internal successors, (451), 12 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:35,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:35,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 66 [2021-03-26 05:12:35,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:36,446 INFO L129 PetriNetUnfolder]: 3182/7455 cut-off events. [2021-03-26 05:12:36,447 INFO L130 PetriNetUnfolder]: For 37283/37727 co-relation queries the response was YES. [2021-03-26 05:12:36,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33131 conditions, 7455 events. 3182/7455 cut-off events. For 37283/37727 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 69366 event pairs, 447 based on Foata normal form. 253/7454 useless extension candidates. Maximal degree in co-relation 32911. Up to 1323 conditions per place. [2021-03-26 05:12:36,510 INFO L132 encePairwiseOnDemand]: 53/66 looper letters, 235 selfloop transitions, 172 changer transitions 1/443 dead transitions. [2021-03-26 05:12:36,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 443 transitions, 4635 flow [2021-03-26 05:12:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 05:12:36,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 05:12:36,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 518 transitions. [2021-03-26 05:12:36,512 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7134986225895317 [2021-03-26 05:12:36,512 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 518 transitions. [2021-03-26 05:12:36,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 518 transitions. [2021-03-26 05:12:36,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:36,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 518 transitions. [2021-03-26 05:12:36,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 47.09090909090909) internal successors, (518), 11 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:36,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 66.0) internal successors, (792), 12 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:36,515 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 66.0) internal successors, (792), 12 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:36,515 INFO L185 Difference]: Start difference. First operand has 113 places, 211 transitions, 1763 flow. Second operand 11 states and 518 transitions. [2021-03-26 05:12:36,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 443 transitions, 4635 flow [2021-03-26 05:12:36,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 443 transitions, 4455 flow, removed 85 selfloop flow, removed 1 redundant places. [2021-03-26 05:12:36,625 INFO L241 Difference]: Finished difference. Result has 130 places, 320 transitions, 3330 flow [2021-03-26 05:12:36,626 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=1639, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3330, PETRI_PLACES=130, PETRI_TRANSITIONS=320} [2021-03-26 05:12:36,630 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 82 predicate places. [2021-03-26 05:12:36,630 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:36,630 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 320 transitions, 3330 flow [2021-03-26 05:12:36,630 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 320 transitions, 3330 flow [2021-03-26 05:12:36,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 320 transitions, 3330 flow [2021-03-26 05:12:36,915 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([149] L34-->thread1EXIT: Formula: (= v_n1_20 0) InVars {} OutVars{n1=v_n1_20} AuxVars[] AssignedVars[n1][89], [Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 385#true, 67#true, Black: 325#e2, 9#L62true, 10#thread1EXITtrue, 276#true, Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 348#e3, Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 278#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), 352#true, Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), 32#L77true, Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), 548#(and (<= 0 n1) (<= 0 n3)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), 40#thread2EXITtrue, Black: 410#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (<= 2 n2)), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1))]) [2021-03-26 05:12:36,915 INFO L384 tUnfolder$Statistics]: this new event has 27 ancestors and is cut-off event [2021-03-26 05:12:36,916 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-26 05:12:36,916 INFO L387 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2021-03-26 05:12:36,916 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-26 05:12:36,926 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([150] L26-->L28: Formula: (and (not v_e1_15) (= v_n1_48 (+ v_n1_49 1))) InVars {n1=v_n1_49} OutVars{e1=v_e1_15, n1=v_n1_48} AuxVars[] AssignedVars[e1, n1][263], [Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 385#true, 70#(and (<= i3 0) (<= 0 i3)), Black: 325#e2, 276#true, Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), Black: 278#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 348#e3, Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), 352#true, 32#L77true, Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), 37#L28true, Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), 40#thread2EXITtrue, Black: 410#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (<= 2 n2)), 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), 50#thread3EXITtrue, Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 548#(and (<= 0 n1) (<= 0 n3)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1))]) [2021-03-26 05:12:36,927 INFO L384 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2021-03-26 05:12:36,927 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-26 05:12:36,927 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-26 05:12:36,927 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-03-26 05:12:37,020 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([150] L26-->L28: Formula: (and (not v_e1_15) (= v_n1_48 (+ v_n1_49 1))) InVars {n1=v_n1_49} OutVars{e1=v_e1_15, n1=v_n1_48} AuxVars[] AssignedVars[e1, n1][263], [Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 385#true, Black: 325#e2, 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), 276#true, Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), Black: 278#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 348#e3, Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), 352#true, 32#L77true, Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), 37#L28true, Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), 40#thread2EXITtrue, Black: 410#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (<= 2 n2)), 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), 50#thread3EXITtrue, Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 548#(and (<= 0 n1) (<= 0 n3)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1))]) [2021-03-26 05:12:37,020 INFO L384 tUnfolder$Statistics]: this new event has 27 ancestors and is cut-off event [2021-03-26 05:12:37,020 INFO L387 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2021-03-26 05:12:37,020 INFO L387 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2021-03-26 05:12:37,020 INFO L387 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2021-03-26 05:12:37,198 INFO L129 PetriNetUnfolder]: 2062/5560 cut-off events. [2021-03-26 05:12:37,198 INFO L130 PetriNetUnfolder]: For 29468/30245 co-relation queries the response was YES. [2021-03-26 05:12:37,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24160 conditions, 5560 events. 2062/5560 cut-off events. For 29468/30245 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 54694 event pairs, 422 based on Foata normal form. 221/5402 useless extension candidates. Maximal degree in co-relation 23890. Up to 1076 conditions per place. [2021-03-26 05:12:37,261 INFO L142 LiptonReduction]: Number of co-enabled transitions 3750 [2021-03-26 05:12:40,792 INFO L154 LiptonReduction]: Checked pairs total: 7751 [2021-03-26 05:12:40,792 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:12:40,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4162 [2021-03-26 05:12:40,793 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 320 transitions, 3330 flow [2021-03-26 05:12:40,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 37.583333333333336) internal successors, (451), 12 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:40,793 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:40,793 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:40,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 05:12:40,794 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:40,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:40,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1548298911, now seen corresponding path program 6 times [2021-03-26 05:12:40,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:40,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717312756] [2021-03-26 05:12:40,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:40,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:40,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:12:40,829 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-26 05:12:40,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:12:40,832 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 05:12:40,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:12:40,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:40,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:12:40,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:40,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:12:40,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:40,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:40,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:40,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:12:40,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:40,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:40,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:40,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:40,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:40,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:40,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:40,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717312756] [2021-03-26 05:12:40,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:40,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:12:40,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812238941] [2021-03-26 05:12:40,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:12:40,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:40,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:12:40,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:12:40,878 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 66 [2021-03-26 05:12:40,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 320 transitions, 3330 flow. Second operand has 8 states, 8 states have (on average 38.375) internal successors, (307), 8 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:40,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:40,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 66 [2021-03-26 05:12:40,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:41,949 INFO L129 PetriNetUnfolder]: 3069/7289 cut-off events. [2021-03-26 05:12:41,949 INFO L130 PetriNetUnfolder]: For 63062/63844 co-relation queries the response was YES. [2021-03-26 05:12:41,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38302 conditions, 7289 events. 3069/7289 cut-off events. For 63062/63844 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 68535 event pairs, 656 based on Foata normal form. 280/7368 useless extension candidates. Maximal degree in co-relation 38029. Up to 2024 conditions per place. [2021-03-26 05:12:42,008 INFO L132 encePairwiseOnDemand]: 50/66 looper letters, 260 selfloop transitions, 191 changer transitions 0/486 dead transitions. [2021-03-26 05:12:42,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 486 transitions, 6030 flow [2021-03-26 05:12:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 05:12:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 05:12:42,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 475 transitions. [2021-03-26 05:12:42,010 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7196969696969697 [2021-03-26 05:12:42,010 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 475 transitions. [2021-03-26 05:12:42,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 475 transitions. [2021-03-26 05:12:42,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:42,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 475 transitions. [2021-03-26 05:12:42,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 47.5) internal successors, (475), 10 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:42,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 66.0) internal successors, (726), 11 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:42,012 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 66.0) internal successors, (726), 11 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:42,012 INFO L185 Difference]: Start difference. First operand has 130 places, 320 transitions, 3330 flow. Second operand 10 states and 475 transitions. [2021-03-26 05:12:42,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 486 transitions, 6030 flow [2021-03-26 05:12:42,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 486 transitions, 5961 flow, removed 34 selfloop flow, removed 1 redundant places. [2021-03-26 05:12:42,145 INFO L241 Difference]: Finished difference. Result has 144 places, 389 transitions, 4884 flow [2021-03-26 05:12:42,146 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=2923, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4884, PETRI_PLACES=144, PETRI_TRANSITIONS=389} [2021-03-26 05:12:42,146 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 96 predicate places. [2021-03-26 05:12:42,146 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:42,146 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 389 transitions, 4884 flow [2021-03-26 05:12:42,146 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 389 transitions, 4884 flow [2021-03-26 05:12:42,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 389 transitions, 4884 flow [2021-03-26 05:12:42,648 INFO L129 PetriNetUnfolder]: 2041/5566 cut-off events. [2021-03-26 05:12:42,648 INFO L130 PetriNetUnfolder]: For 46641/47464 co-relation queries the response was YES. [2021-03-26 05:12:42,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28095 conditions, 5566 events. 2041/5566 cut-off events. For 46641/47464 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 55768 event pairs, 596 based on Foata normal form. 165/5317 useless extension candidates. Maximal degree in co-relation 27852. Up to 1113 conditions per place. [2021-03-26 05:12:42,722 INFO L142 LiptonReduction]: Number of co-enabled transitions 3824 [2021-03-26 05:12:46,124 INFO L154 LiptonReduction]: Checked pairs total: 12835 [2021-03-26 05:12:46,124 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:12:46,124 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3978 [2021-03-26 05:12:46,125 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 389 transitions, 4884 flow [2021-03-26 05:12:46,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 38.375) internal successors, (307), 8 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:46,126 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:46,126 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:46,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 05:12:46,126 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:46,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:46,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1788452391, now seen corresponding path program 7 times [2021-03-26 05:12:46,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:46,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104345147] [2021-03-26 05:12:46,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:46,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:46,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:46,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:46,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:46,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:46,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:46,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:46,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104345147] [2021-03-26 05:12:46,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:46,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:12:46,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385655774] [2021-03-26 05:12:46,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:12:46,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:46,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:12:46,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:12:46,142 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 66 [2021-03-26 05:12:46,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 389 transitions, 4884 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:46,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:46,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 66 [2021-03-26 05:12:46,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:46,711 INFO L129 PetriNetUnfolder]: 1807/5328 cut-off events. [2021-03-26 05:12:46,711 INFO L130 PetriNetUnfolder]: For 45272/46067 co-relation queries the response was YES. [2021-03-26 05:12:46,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26894 conditions, 5328 events. 1807/5328 cut-off events. For 45272/46067 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 54099 event pairs, 535 based on Foata normal form. 188/5141 useless extension candidates. Maximal degree in co-relation 26616. Up to 1019 conditions per place. [2021-03-26 05:12:46,757 INFO L132 encePairwiseOnDemand]: 62/66 looper letters, 3 selfloop transitions, 26 changer transitions 0/372 dead transitions. [2021-03-26 05:12:46,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 372 transitions, 4742 flow [2021-03-26 05:12:46,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:12:46,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:12:46,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2021-03-26 05:12:46,758 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9141414141414141 [2021-03-26 05:12:46,758 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 181 transitions. [2021-03-26 05:12:46,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 181 transitions. [2021-03-26 05:12:46,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:46,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 181 transitions. [2021-03-26 05:12:46,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:46,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:46,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:46,759 INFO L185 Difference]: Start difference. First operand has 144 places, 389 transitions, 4884 flow. Second operand 3 states and 181 transitions. [2021-03-26 05:12:46,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 372 transitions, 4742 flow [2021-03-26 05:12:46,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 372 transitions, 4621 flow, removed 54 selfloop flow, removed 2 redundant places. [2021-03-26 05:12:46,987 INFO L241 Difference]: Finished difference. Result has 145 places, 372 transitions, 4645 flow [2021-03-26 05:12:46,987 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=4563, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=4645, PETRI_PLACES=145, PETRI_TRANSITIONS=372} [2021-03-26 05:12:46,988 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 97 predicate places. [2021-03-26 05:12:46,988 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:46,988 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 372 transitions, 4645 flow [2021-03-26 05:12:46,988 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 372 transitions, 4645 flow [2021-03-26 05:12:46,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 372 transitions, 4645 flow [2021-03-26 05:12:47,324 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([132] L63-->L64: Formula: (or (= v_n1_14 0) (and (not (= v_n1_14 v_n3_12)) (not (< v_n1_14 v_n3_12)))) InVars {n3=v_n3_12, n1=v_n1_14} OutVars{n3=v_n3_12, n1=v_n1_14} AuxVars[] AssignedVars[][124], [385#true, 10#thread1EXITtrue, 658#(and (<= n1 n3) (<= 0 n1) (<= n2 n3)), 276#true, Black: 657#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), Black: 659#(and (<= n1 n3) (<= 0 n1)), Black: 660#(and (<= n1 (+ n3 1)) (<= 1 n1)), Black: 278#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 661#(and (<= n1 n3) (<= 1 n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), 32#L77true, Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 663#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), 548#(and (<= 0 n1) (<= 0 n3)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), 38#L64true, Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), 44#L49true, 688#true, Black: 690#e1, Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 67#true, Black: 325#e2, Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 348#e3, Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), 352#true, Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2))]) [2021-03-26 05:12:47,324 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is not cut-off event [2021-03-26 05:12:47,325 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-26 05:12:47,325 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is not cut-off event [2021-03-26 05:12:47,325 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is not cut-off event [2021-03-26 05:12:47,326 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([132] L63-->L64: Formula: (or (= v_n1_14 0) (and (not (= v_n1_14 v_n3_12)) (not (< v_n1_14 v_n3_12)))) InVars {n3=v_n3_12, n1=v_n1_14} OutVars{n3=v_n3_12, n1=v_n1_14} AuxVars[] AssignedVars[][124], [389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), 10#thread1EXITtrue, 658#(and (<= n1 n3) (<= 0 n1) (<= n2 n3)), 276#true, Black: 657#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 659#(and (<= n1 n3) (<= 0 n1)), Black: 278#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 660#(and (<= n1 (+ n3 1)) (<= 1 n1)), Black: 661#(and (<= n1 n3) (<= 1 n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 663#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), 32#L77true, Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), 548#(and (<= 0 n1) (<= 0 n3)), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), 38#L64true, Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), 44#L49true, 688#true, Black: 690#e1, Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 67#true, Black: 325#e2, Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 348#e3, Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), 352#true, Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2))]) [2021-03-26 05:12:47,326 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is not cut-off event [2021-03-26 05:12:47,326 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-26 05:12:47,326 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-26 05:12:47,326 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-03-26 05:12:47,425 INFO L129 PetriNetUnfolder]: 1852/5436 cut-off events. [2021-03-26 05:12:47,425 INFO L130 PetriNetUnfolder]: For 43104/43870 co-relation queries the response was YES. [2021-03-26 05:12:47,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26971 conditions, 5436 events. 1852/5436 cut-off events. For 43104/43870 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 55720 event pairs, 591 based on Foata normal form. 126/5148 useless extension candidates. Maximal degree in co-relation 26664. Up to 1023 conditions per place. [2021-03-26 05:12:47,503 INFO L142 LiptonReduction]: Number of co-enabled transitions 3310 [2021-03-26 05:12:52,638 INFO L154 LiptonReduction]: Checked pairs total: 3057 [2021-03-26 05:12:52,638 INFO L156 LiptonReduction]: Total number of compositions: 17 [2021-03-26 05:12:52,638 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5650 [2021-03-26 05:12:52,639 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 372 transitions, 4679 flow [2021-03-26 05:12:52,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:52,640 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:12:52,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:12:52,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 05:12:52,640 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:12:52,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:12:52,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1055259301, now seen corresponding path program 8 times [2021-03-26 05:12:52,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:12:52,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333335124] [2021-03-26 05:12:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:12:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:12:52,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:52,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:12:52,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:52,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:12:52,686 INFO L142 QuantifierPusher]: treesize reduction 17, result has 62.2 percent of original size [2021-03-26 05:12:52,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 05:12:52,692 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-03-26 05:12:52,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 05:12:52,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:52,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:12:52,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:52,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:52,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:52,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:12:52,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:52,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:12:52,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:52,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:52,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:12:52,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:12:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:12:52,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333335124] [2021-03-26 05:12:52,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:12:52,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:12:52,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825635067] [2021-03-26 05:12:52,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:12:52,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:12:52,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:12:52,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:12:52,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 83 [2021-03-26 05:12:52,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 372 transitions, 4679 flow. Second operand has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:52,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:12:52,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 83 [2021-03-26 05:12:52,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:12:54,151 INFO L129 PetriNetUnfolder]: 3451/8680 cut-off events. [2021-03-26 05:12:54,151 INFO L130 PetriNetUnfolder]: For 93991/95216 co-relation queries the response was YES. [2021-03-26 05:12:54,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49722 conditions, 8680 events. 3451/8680 cut-off events. For 93991/95216 co-relation queries the response was YES. Maximal size of possible extension queue 511. Compared 87362 event pairs, 1017 based on Foata normal form. 285/8609 useless extension candidates. Maximal degree in co-relation 49288. Up to 2458 conditions per place. [2021-03-26 05:12:54,236 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 381 selfloop transitions, 125 changer transitions 0/541 dead transitions. [2021-03-26 05:12:54,236 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 541 transitions, 7867 flow [2021-03-26 05:12:54,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 05:12:54,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 05:12:54,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 313 transitions. [2021-03-26 05:12:54,238 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6285140562248996 [2021-03-26 05:12:54,238 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 313 transitions. [2021-03-26 05:12:54,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 313 transitions. [2021-03-26 05:12:54,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:12:54,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 313 transitions. [2021-03-26 05:12:54,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:54,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:54,239 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:12:54,239 INFO L185 Difference]: Start difference. First operand has 145 places, 372 transitions, 4679 flow. Second operand 6 states and 313 transitions. [2021-03-26 05:12:54,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 541 transitions, 7867 flow [2021-03-26 05:12:54,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 541 transitions, 7739 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-03-26 05:12:54,488 INFO L241 Difference]: Finished difference. Result has 151 places, 424 transitions, 5784 flow [2021-03-26 05:12:54,488 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=4479, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5784, PETRI_PLACES=151, PETRI_TRANSITIONS=424} [2021-03-26 05:12:54,488 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 103 predicate places. [2021-03-26 05:12:54,488 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:12:54,488 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 424 transitions, 5784 flow [2021-03-26 05:12:54,488 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 424 transitions, 5784 flow [2021-03-26 05:12:54,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 424 transitions, 5784 flow [2021-03-26 05:12:55,199 INFO L129 PetriNetUnfolder]: 2279/6727 cut-off events. [2021-03-26 05:12:55,199 INFO L130 PetriNetUnfolder]: For 59313/60202 co-relation queries the response was YES. [2021-03-26 05:12:55,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34543 conditions, 6727 events. 2279/6727 cut-off events. For 59313/60202 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 71848 event pairs, 740 based on Foata normal form. 166/6373 useless extension candidates. Maximal degree in co-relation 34159. Up to 1204 conditions per place. [2021-03-26 05:12:55,285 INFO L142 LiptonReduction]: Number of co-enabled transitions 3574 [2021-03-26 05:13:06,610 INFO L154 LiptonReduction]: Checked pairs total: 1152 [2021-03-26 05:13:06,610 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 05:13:06,610 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12122 [2021-03-26 05:13:06,611 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 424 transitions, 5788 flow [2021-03-26 05:13:06,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 38.714285714285715) internal successors, (271), 7 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:06,611 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:13:06,611 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:13:06,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 05:13:06,612 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:13:06,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:13:06,612 INFO L82 PathProgramCache]: Analyzing trace with hash 966322286, now seen corresponding path program 1 times [2021-03-26 05:13:06,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:13:06,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840938034] [2021-03-26 05:13:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:13:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:13:06,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:06,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:06,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:06,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:06,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:06,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:06,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:06,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:06,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:06,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:06,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:06,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:06,659 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 05:13:06,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:06,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:13:06,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840938034] [2021-03-26 05:13:06,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:13:06,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:13:06,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887829729] [2021-03-26 05:13:06,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:13:06,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:13:06,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:13:06,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:13:06,668 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 85 [2021-03-26 05:13:06,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 424 transitions, 5788 flow. Second operand has 9 states, 9 states have (on average 73.88888888888889) internal successors, (665), 9 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:06,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:13:06,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 85 [2021-03-26 05:13:06,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:13:07,388 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([132] L63-->L64: Formula: (or (= v_n1_14 0) (and (not (= v_n1_14 v_n3_12)) (not (< v_n1_14 v_n3_12)))) InVars {n3=v_n3_12, n1=v_n1_14} OutVars{n3=v_n3_12, n1=v_n1_14} AuxVars[] AssignedVars[][52], [389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), 10#thread1EXITtrue, 658#(and (<= n1 n3) (<= 0 n1) (<= n2 n3)), 276#true, Black: 657#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 659#(and (<= n1 n3) (<= 0 n1)), Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 660#(and (<= n1 (+ n3 1)) (<= 1 n1)), Black: 278#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 661#(and (<= n1 n3) (<= 1 n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), 32#L77true, Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 663#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), 548#(and (<= 0 n1) (<= 0 n3)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), 38#L64true, Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), 44#L49true, Black: 690#e1, Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 963#true, 67#true, Black: 325#e2, Black: 967#(and (<= n2 n3) (<= 0 n2)), Black: 968#(and (<= n2 (+ n3 1)) (<= 1 n2)), Black: 969#(and (<= n2 n3) (<= 1 n2)), 1103#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 348#e3, 352#true, Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2))]) [2021-03-26 05:13:07,388 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2021-03-26 05:13:07,388 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2021-03-26 05:13:07,388 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2021-03-26 05:13:07,389 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-03-26 05:13:08,403 INFO L129 PetriNetUnfolder]: 3253/10210 cut-off events. [2021-03-26 05:13:08,403 INFO L130 PetriNetUnfolder]: For 88758/90211 co-relation queries the response was YES. [2021-03-26 05:13:08,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53176 conditions, 10210 events. 3253/10210 cut-off events. For 88758/90211 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 117286 event pairs, 871 based on Foata normal form. 328/9923 useless extension candidates. Maximal degree in co-relation 52163. Up to 2153 conditions per place. [2021-03-26 05:13:08,496 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 36 selfloop transitions, 41 changer transitions 2/477 dead transitions. [2021-03-26 05:13:08,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 477 transitions, 6164 flow [2021-03-26 05:13:08,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-26 05:13:08,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-26 05:13:08,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1223 transitions. [2021-03-26 05:13:08,499 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.899264705882353 [2021-03-26 05:13:08,499 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1223 transitions. [2021-03-26 05:13:08,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1223 transitions. [2021-03-26 05:13:08,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:13:08,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1223 transitions. [2021-03-26 05:13:08,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 76.4375) internal successors, (1223), 16 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:08,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:08,503 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:08,503 INFO L185 Difference]: Start difference. First operand has 151 places, 424 transitions, 5788 flow. Second operand 16 states and 1223 transitions. [2021-03-26 05:13:08,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 477 transitions, 6164 flow [2021-03-26 05:13:08,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 477 transitions, 6130 flow, removed 13 selfloop flow, removed 1 redundant places. [2021-03-26 05:13:08,767 INFO L241 Difference]: Finished difference. Result has 173 places, 457 transitions, 6045 flow [2021-03-26 05:13:08,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=5754, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6045, PETRI_PLACES=173, PETRI_TRANSITIONS=457} [2021-03-26 05:13:08,768 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 125 predicate places. [2021-03-26 05:13:08,768 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:13:08,768 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 457 transitions, 6045 flow [2021-03-26 05:13:08,768 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 457 transitions, 6045 flow [2021-03-26 05:13:08,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 173 places, 457 transitions, 6045 flow [2021-03-26 05:13:09,692 INFO L129 PetriNetUnfolder]: 3052/9870 cut-off events. [2021-03-26 05:13:09,692 INFO L130 PetriNetUnfolder]: For 87926/89213 co-relation queries the response was YES. [2021-03-26 05:13:09,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52902 conditions, 9870 events. 3052/9870 cut-off events. For 87926/89213 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 115415 event pairs, 860 based on Foata normal form. 275/9511 useless extension candidates. Maximal degree in co-relation 52402. Up to 2223 conditions per place. [2021-03-26 05:13:09,935 INFO L142 LiptonReduction]: Number of co-enabled transitions 4326 [2021-03-26 05:13:18,529 INFO L154 LiptonReduction]: Checked pairs total: 320 [2021-03-26 05:13:18,529 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 05:13:18,529 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9761 [2021-03-26 05:13:18,530 INFO L480 AbstractCegarLoop]: Abstraction has has 172 places, 456 transitions, 6053 flow [2021-03-26 05:13:18,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 73.88888888888889) internal successors, (665), 9 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:18,530 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:13:18,530 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:13:18,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 05:13:18,530 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:13:18,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:13:18,531 INFO L82 PathProgramCache]: Analyzing trace with hash 421932912, now seen corresponding path program 2 times [2021-03-26 05:13:18,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:13:18,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025630397] [2021-03-26 05:13:18,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:13:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:13:18,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:18,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:13:18,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:18,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:13:18,569 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.2 percent of original size [2021-03-26 05:13:18,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 05:13:18,572 INFO L142 QuantifierPusher]: treesize reduction 27, result has 48.1 percent of original size [2021-03-26 05:13:18,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 05:13:18,576 INFO L142 QuantifierPusher]: treesize reduction 24, result has 51.0 percent of original size [2021-03-26 05:13:18,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 05:13:18,593 INFO L142 QuantifierPusher]: treesize reduction 7, result has 79.4 percent of original size [2021-03-26 05:13:18,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 05:13:18,610 INFO L142 QuantifierPusher]: treesize reduction 7, result has 81.6 percent of original size [2021-03-26 05:13:18,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 05:13:18,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:18,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 05:13:18,651 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.0 percent of original size [2021-03-26 05:13:18,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 05:13:18,685 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.2 percent of original size [2021-03-26 05:13:18,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 05:13:18,706 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.0 percent of original size [2021-03-26 05:13:18,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 05:13:18,726 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-26 05:13:18,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:13:18,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:18,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:13:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:13:18,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025630397] [2021-03-26 05:13:18,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:13:18,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-26 05:13:18,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363386785] [2021-03-26 05:13:18,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 05:13:18,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:13:18,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 05:13:18,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-26 05:13:18,740 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 90 [2021-03-26 05:13:18,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 456 transitions, 6053 flow. Second operand has 11 states, 11 states have (on average 42.72727272727273) internal successors, (470), 11 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:18,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:13:18,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 90 [2021-03-26 05:13:18,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:13:21,084 INFO L129 PetriNetUnfolder]: 4226/11811 cut-off events. [2021-03-26 05:13:21,084 INFO L130 PetriNetUnfolder]: For 141596/143972 co-relation queries the response was YES. [2021-03-26 05:13:21,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72745 conditions, 11811 events. 4226/11811 cut-off events. For 141596/143972 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 130293 event pairs, 1307 based on Foata normal form. 288/11622 useless extension candidates. Maximal degree in co-relation 72169. Up to 6914 conditions per place. [2021-03-26 05:13:21,208 INFO L132 encePairwiseOnDemand]: 69/90 looper letters, 378 selfloop transitions, 95 changer transitions 2/544 dead transitions. [2021-03-26 05:13:21,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 544 transitions, 8153 flow [2021-03-26 05:13:21,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 05:13:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 05:13:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 663 transitions. [2021-03-26 05:13:21,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2021-03-26 05:13:21,210 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 663 transitions. [2021-03-26 05:13:21,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 663 transitions. [2021-03-26 05:13:21,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:13:21,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 663 transitions. [2021-03-26 05:13:21,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 51.0) internal successors, (663), 13 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:21,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:21,213 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:21,213 INFO L185 Difference]: Start difference. First operand has 172 places, 456 transitions, 6053 flow. Second operand 13 states and 663 transitions. [2021-03-26 05:13:21,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 544 transitions, 8153 flow [2021-03-26 05:13:21,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 544 transitions, 8137 flow, removed 8 selfloop flow, removed 0 redundant places. [2021-03-26 05:13:21,661 INFO L241 Difference]: Finished difference. Result has 193 places, 496 transitions, 6983 flow [2021-03-26 05:13:21,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=6037, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6983, PETRI_PLACES=193, PETRI_TRANSITIONS=496} [2021-03-26 05:13:21,661 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 145 predicate places. [2021-03-26 05:13:21,661 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:13:21,661 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 193 places, 496 transitions, 6983 flow [2021-03-26 05:13:21,661 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 193 places, 496 transitions, 6983 flow [2021-03-26 05:13:21,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 496 transitions, 6983 flow [2021-03-26 05:13:22,674 INFO L129 PetriNetUnfolder]: 3007/9802 cut-off events. [2021-03-26 05:13:22,675 INFO L130 PetriNetUnfolder]: For 99798/101092 co-relation queries the response was YES. [2021-03-26 05:13:22,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54529 conditions, 9802 events. 3007/9802 cut-off events. For 99798/101092 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 115016 event pairs, 846 based on Foata normal form. 246/9413 useless extension candidates. Maximal degree in co-relation 53982. Up to 2162 conditions per place. [2021-03-26 05:13:22,830 INFO L142 LiptonReduction]: Number of co-enabled transitions 4438 [2021-03-26 05:13:27,160 INFO L154 LiptonReduction]: Checked pairs total: 72 [2021-03-26 05:13:27,160 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:13:27,160 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5499 [2021-03-26 05:13:27,161 INFO L480 AbstractCegarLoop]: Abstraction has has 193 places, 496 transitions, 6985 flow [2021-03-26 05:13:27,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 42.72727272727273) internal successors, (470), 11 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:27,161 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:13:27,161 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:13:27,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 05:13:27,161 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:13:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:13:27,162 INFO L82 PathProgramCache]: Analyzing trace with hash 234414091, now seen corresponding path program 1 times [2021-03-26 05:13:27,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:13:27,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937453248] [2021-03-26 05:13:27,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:13:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:13:27,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:27,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 05:13:27,190 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-26 05:13:27,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:13:27,193 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-26 05:13:27,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:13:27,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:27,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:13:27,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:27,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:13:27,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:27,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:13:27,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:27,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:13:27,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:27,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:27,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:27,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:27,245 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-26 05:13:27,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:27,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:27,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:13:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:13:27,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937453248] [2021-03-26 05:13:27,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:13:27,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 05:13:27,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710284781] [2021-03-26 05:13:27,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 05:13:27,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:13:27,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 05:13:27,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-26 05:13:27,255 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 91 [2021-03-26 05:13:27,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 496 transitions, 6985 flow. Second operand has 10 states, 10 states have (on average 42.9) internal successors, (429), 10 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:27,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:13:27,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 91 [2021-03-26 05:13:27,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:13:30,129 INFO L129 PetriNetUnfolder]: 5227/14482 cut-off events. [2021-03-26 05:13:30,130 INFO L130 PetriNetUnfolder]: For 192212/194502 co-relation queries the response was YES. [2021-03-26 05:13:30,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91200 conditions, 14482 events. 5227/14482 cut-off events. For 192212/194502 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 164509 event pairs, 1009 based on Foata normal form. 894/14863 useless extension candidates. Maximal degree in co-relation 90432. Up to 3042 conditions per place. [2021-03-26 05:13:30,256 INFO L132 encePairwiseOnDemand]: 76/91 looper letters, 312 selfloop transitions, 393 changer transitions 3/777 dead transitions. [2021-03-26 05:13:30,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 777 transitions, 12432 flow [2021-03-26 05:13:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 05:13:30,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 05:13:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 698 transitions. [2021-03-26 05:13:30,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5900253592561285 [2021-03-26 05:13:30,258 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 698 transitions. [2021-03-26 05:13:30,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 698 transitions. [2021-03-26 05:13:30,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:13:30,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 698 transitions. [2021-03-26 05:13:30,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.69230769230769) internal successors, (698), 13 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:30,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:30,260 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:30,261 INFO L185 Difference]: Start difference. First operand has 193 places, 496 transitions, 6985 flow. Second operand 13 states and 698 transitions. [2021-03-26 05:13:30,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 777 transitions, 12432 flow [2021-03-26 05:13:30,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 777 transitions, 12292 flow, removed 58 selfloop flow, removed 2 redundant places. [2021-03-26 05:13:30,850 INFO L241 Difference]: Finished difference. Result has 213 places, 651 transitions, 10880 flow [2021-03-26 05:13:30,850 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=6849, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10880, PETRI_PLACES=213, PETRI_TRANSITIONS=651} [2021-03-26 05:13:30,850 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 165 predicate places. [2021-03-26 05:13:30,850 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:13:30,850 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 651 transitions, 10880 flow [2021-03-26 05:13:30,850 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 651 transitions, 10880 flow [2021-03-26 05:13:30,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 213 places, 651 transitions, 10880 flow [2021-03-26 05:13:31,624 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([132] L63-->L64: Formula: (or (= v_n1_14 0) (and (not (= v_n1_14 v_n3_12)) (not (< v_n1_14 v_n3_12)))) InVars {n3=v_n3_12, n1=v_n1_14} OutVars{n3=v_n3_12, n1=v_n1_14} AuxVars[] AssignedVars[][490], [389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), 10#thread1EXITtrue, 658#(and (<= n1 n3) (<= 0 n1) (<= n2 n3)), 276#true, Black: 657#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 659#(and (<= n1 n3) (<= 0 n1)), Black: 660#(and (<= n1 (+ n3 1)) (<= 1 n1)), Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 278#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 661#(and (<= n1 n3) (<= 1 n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), 32#L77true, Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 663#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), 548#(and (<= 0 n1) (<= 0 n3)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), 38#L64true, Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), 44#L49true, Black: 690#e1, 1333#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 963#true, 67#true, Black: 325#e2, Black: 1345#(and (<= 1 n1) (<= n2 n3) (<= 1 n2)), Black: 1331#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 1347#(and (< n2 n1) (<= n2 n3) (<= 1 n2)), Black: 1332#(and (<= 0 n1) (<= n2 n3) (<= 0 n2)), Black: 967#(and (<= n2 n3) (<= 0 n2)), Black: 1349#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 968#(and (<= n2 (+ n3 1)) (<= 1 n2)), Black: 1334#(and (<= 1 n1) (<= 0 n3) (<= 0 n2)), Black: 969#(and (<= n2 n3) (<= 1 n2)), 1230#true, Black: 1339#(and (<= 1 n1) (<= n2 n3) (<= 0 n2)), Black: 1341#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), 1103#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 1343#(and (< n2 n1) (<= 0 n3) (<= 1 n2)), Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 348#e3, Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 1109#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 1093#(and (<= i 0) (<= 0 i)), 352#true, Black: 1094#(and (<= i1 0) (<= 0 i1)), Black: 1111#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1)), Black: 1095#(and (<= 1 i) (<= i 1)), Black: 1097#(and (<= 2 i) (<= i 2)), Black: 1117#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 1248#(and (<= (+ n3 1) n1) (<= 0 n3) (or (<= (+ n3 2) n2) (<= (+ n3 2) n1))), Black: 1234#(and (or (and (<= n3 n2) (<= n3 n1)) (<= (+ n3 1) n1)) (<= 0 n3)), Black: 1250#(and (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 1235#(and (<= 0 n3) (or (<= (+ n3 2) n1) (and (<= (+ n3 1) n1) (<= n3 n2)))), Black: 1252#(and (<= (+ n3 1) n1) (<= 0 n3) (not (= n3 0))), Black: 1254#(and (or (<= (+ n3 2) n1) (<= n3 n2)) (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 1256#(and (<= 0 n3) (or (<= (+ n3 2) n1) (and (<= (+ n3 1) n1) (<= n3 n2))) (not (= n3 0))), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 1244#(and (or (<= n1 n2) (<= (+ n3 2) n1)) (<= (+ n3 1) n1) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 1246#(and (or (<= (+ n3 2) n1) (and (<= n3 n2) (or (<= (+ n2 1) n1) (<= (+ n3 1) n2)))) (<= 0 n3) (<= n3 n1)), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2))]) [2021-03-26 05:13:31,624 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2021-03-26 05:13:31,624 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2021-03-26 05:13:31,624 INFO L387 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2021-03-26 05:13:31,624 INFO L387 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2021-03-26 05:13:32,349 INFO L129 PetriNetUnfolder]: 4009/12691 cut-off events. [2021-03-26 05:13:32,349 INFO L130 PetriNetUnfolder]: For 182416/184458 co-relation queries the response was YES. [2021-03-26 05:13:32,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79230 conditions, 12691 events. 4009/12691 cut-off events. For 182416/184458 co-relation queries the response was YES. Maximal size of possible extension queue 806. Compared 153213 event pairs, 1074 based on Foata normal form. 490/12455 useless extension candidates. Maximal degree in co-relation 78423. Up to 2845 conditions per place. [2021-03-26 05:13:32,595 INFO L142 LiptonReduction]: Number of co-enabled transitions 5764 [2021-03-26 05:13:46,205 INFO L154 LiptonReduction]: Checked pairs total: 227 [2021-03-26 05:13:46,205 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 05:13:46,205 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15355 [2021-03-26 05:13:46,206 INFO L480 AbstractCegarLoop]: Abstraction has has 213 places, 651 transitions, 10884 flow [2021-03-26 05:13:46,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 42.9) internal successors, (429), 10 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:46,206 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:13:46,206 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:13:46,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 05:13:46,207 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:13:46,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:13:46,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1877423947, now seen corresponding path program 2 times [2021-03-26 05:13:46,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:13:46,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602521244] [2021-03-26 05:13:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:13:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:13:46,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:46,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:13:46,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:46,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:13:46,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:46,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:13:46,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:46,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:46,275 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-26 05:13:46,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 05:13:46,290 INFO L142 QuantifierPusher]: treesize reduction 10, result has 60.0 percent of original size [2021-03-26 05:13:46,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 05:13:46,301 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:13:46,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:46,307 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:13:46,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:13:46,314 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 05:13:46,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:13:46,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:13:46,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:13:46,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:13:46,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602521244] [2021-03-26 05:13:46,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:13:46,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-26 05:13:46,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266817338] [2021-03-26 05:13:46,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 05:13:46,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:13:46,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 05:13:46,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-26 05:13:46,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 93 [2021-03-26 05:13:46,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 651 transitions, 10884 flow. Second operand has 11 states, 11 states have (on average 42.72727272727273) internal successors, (470), 11 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:46,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:13:46,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 93 [2021-03-26 05:13:46,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:13:50,274 INFO L129 PetriNetUnfolder]: 6543/18057 cut-off events. [2021-03-26 05:13:50,274 INFO L130 PetriNetUnfolder]: For 318944/322496 co-relation queries the response was YES. [2021-03-26 05:13:50,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123906 conditions, 18057 events. 6543/18057 cut-off events. For 318944/322496 co-relation queries the response was YES. Maximal size of possible extension queue 926. Compared 211127 event pairs, 972 based on Foata normal form. 1422/18892 useless extension candidates. Maximal degree in co-relation 122888. Up to 3886 conditions per place. [2021-03-26 05:13:50,503 INFO L132 encePairwiseOnDemand]: 61/93 looper letters, 387 selfloop transitions, 530 changer transitions 4/990 dead transitions. [2021-03-26 05:13:50,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 990 transitions, 18215 flow [2021-03-26 05:13:50,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 05:13:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 05:13:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 816 transitions. [2021-03-26 05:13:50,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5849462365591398 [2021-03-26 05:13:50,505 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 816 transitions. [2021-03-26 05:13:50,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 816 transitions. [2021-03-26 05:13:50,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:13:50,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 816 transitions. [2021-03-26 05:13:50,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.4) internal successors, (816), 15 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:50,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 93.0) internal successors, (1488), 16 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:50,508 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 93.0) internal successors, (1488), 16 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:13:50,508 INFO L185 Difference]: Start difference. First operand has 213 places, 651 transitions, 10884 flow. Second operand 15 states and 816 transitions. [2021-03-26 05:13:50,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 990 transitions, 18215 flow [2021-03-26 05:13:52,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 990 transitions, 17872 flow, removed 149 selfloop flow, removed 2 redundant places. [2021-03-26 05:13:52,130 INFO L241 Difference]: Finished difference. Result has 238 places, 830 transitions, 15961 flow [2021-03-26 05:13:52,130 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=10328, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=352, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15961, PETRI_PLACES=238, PETRI_TRANSITIONS=830} [2021-03-26 05:13:52,130 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 190 predicate places. [2021-03-26 05:13:52,130 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:13:52,131 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 830 transitions, 15961 flow [2021-03-26 05:13:52,131 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 830 transitions, 15961 flow [2021-03-26 05:13:52,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 238 places, 830 transitions, 15961 flow [2021-03-26 05:13:53,298 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([132] L63-->L64: Formula: (or (= v_n1_14 0) (and (not (= v_n1_14 v_n3_12)) (not (< v_n1_14 v_n3_12)))) InVars {n3=v_n3_12, n1=v_n1_14} OutVars{n3=v_n3_12, n1=v_n1_14} AuxVars[] AssignedVars[][143], [389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), 10#thread1EXITtrue, 658#(and (<= n1 n3) (<= 0 n1) (<= n2 n3)), 276#true, 1560#(and (<= 0 n1) (<= 0 n3) (<= 1 n2)), Black: 657#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 659#(and (<= n1 n3) (<= 0 n1)), Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 660#(and (<= n1 (+ n3 1)) (<= 1 n1)), Black: 661#(and (<= n1 n3) (<= 1 n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 663#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), 32#L77true, Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 1568#(and (<= (+ n2 1) n1) (<= 0 n3) (<= 1 n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), Black: 1540#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 1546#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), 548#(and (<= 0 n1) (<= 0 n3)), Black: 1548#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), 38#L64true, Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 1550#(and (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1552#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), Black: 1554#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 1556#(and (<= 1 n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1558#(and (<= 0 n3) (<= n3 n1) (<= 0 n2)), Black: 1562#(and (<= (+ n2 1) n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), 44#L49true, Black: 1564#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), Black: 1566#(and (<= n1 n3) (<= (+ n2 1) n1) (<= n3 n1) (<= 1 n2)), Black: 690#e1, 1333#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 963#true, 67#true, Black: 1345#(and (<= 1 n1) (<= n2 n3) (<= 1 n2)), Black: 325#e2, Black: 1331#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 1347#(and (< n2 n1) (<= n2 n3) (<= 1 n2)), Black: 1332#(and (<= 0 n1) (<= n2 n3) (<= 0 n2)), Black: 967#(and (<= n2 n3) (<= 0 n2)), Black: 1349#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 968#(and (<= n2 (+ n3 1)) (<= 1 n2)), Black: 1334#(and (<= 1 n1) (<= 0 n3) (<= 0 n2)), Black: 969#(and (<= n2 n3) (<= 1 n2)), Black: 1339#(and (<= 1 n1) (<= n2 n3) (<= 0 n2)), 1230#true, Black: 1341#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), 1103#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 1343#(and (< n2 n1) (<= 0 n3) (<= 1 n2)), Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 348#e3, Black: 1109#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 1093#(and (<= i 0) (<= 0 i)), 352#true, Black: 1094#(and (<= i1 0) (<= 0 i1)), Black: 1111#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1)), Black: 1095#(and (<= 1 i) (<= i 1)), Black: 1097#(and (<= 2 i) (<= i 2)), Black: 1117#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 1248#(and (<= (+ n3 1) n1) (<= 0 n3) (or (<= (+ n3 2) n2) (<= (+ n3 2) n1))), Black: 1234#(and (or (and (<= n3 n2) (<= n3 n1)) (<= (+ n3 1) n1)) (<= 0 n3)), Black: 1250#(and (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 1235#(and (<= 0 n3) (or (<= (+ n3 2) n1) (and (<= (+ n3 1) n1) (<= n3 n2)))), Black: 1252#(and (<= (+ n3 1) n1) (<= 0 n3) (not (= n3 0))), Black: 1254#(and (or (<= (+ n3 2) n1) (<= n3 n2)) (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 1256#(and (<= 0 n3) (or (<= (+ n3 2) n1) (and (<= (+ n3 1) n1) (<= n3 n2))) (not (= n3 0))), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 1244#(and (or (<= n1 n2) (<= (+ n3 2) n1)) (<= (+ n3 1) n1) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 1246#(and (or (<= (+ n3 2) n1) (and (<= n3 n2) (or (<= (+ n2 1) n1) (<= (+ n3 1) n2)))) (<= 0 n3) (<= n3 n1)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2))]) [2021-03-26 05:13:53,298 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2021-03-26 05:13:53,298 INFO L387 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2021-03-26 05:13:53,298 INFO L387 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2021-03-26 05:13:53,298 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2021-03-26 05:13:55,000 INFO L129 PetriNetUnfolder]: 5737/17217 cut-off events. [2021-03-26 05:13:55,001 INFO L130 PetriNetUnfolder]: For 346899/349800 co-relation queries the response was YES. [2021-03-26 05:13:55,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119443 conditions, 17217 events. 5737/17217 cut-off events. For 346899/349800 co-relation queries the response was YES. Maximal size of possible extension queue 1054. Compared 211226 event pairs, 1263 based on Foata normal form. 753/17066 useless extension candidates. Maximal degree in co-relation 118617. Up to 3886 conditions per place. [2021-03-26 05:13:55,295 INFO L142 LiptonReduction]: Number of co-enabled transitions 7100 [2021-03-26 05:14:20,180 INFO L154 LiptonReduction]: Checked pairs total: 3995 [2021-03-26 05:14:20,180 INFO L156 LiptonReduction]: Total number of compositions: 17 [2021-03-26 05:14:20,181 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28051 [2021-03-26 05:14:20,182 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 830 transitions, 15995 flow [2021-03-26 05:14:20,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 42.72727272727273) internal successors, (470), 11 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:14:20,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:14:20,182 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:14:20,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 05:14:20,182 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:14:20,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:14:20,182 INFO L82 PathProgramCache]: Analyzing trace with hash 267603656, now seen corresponding path program 1 times [2021-03-26 05:14:20,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:14:20,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652586118] [2021-03-26 05:14:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:14:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:14:20,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:14:20,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:14:20,227 INFO L142 QuantifierPusher]: treesize reduction 14, result has 53.3 percent of original size [2021-03-26 05:14:20,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:14:20,238 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-26 05:14:20,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:14:20,249 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-26 05:14:20,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:14:20,250 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-26 05:14:20,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:14:20,251 INFO L142 QuantifierPusher]: treesize reduction 21, result has 46.2 percent of original size [2021-03-26 05:14:20,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 05:14:20,262 INFO L142 QuantifierPusher]: treesize reduction 21, result has 51.2 percent of original size [2021-03-26 05:14:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 05:14:20,273 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-26 05:14:20,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 05:14:20,285 INFO L142 QuantifierPusher]: treesize reduction 13, result has 60.6 percent of original size [2021-03-26 05:14:20,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 05:14:20,297 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-26 05:14:20,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 05:14:20,308 INFO L142 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size [2021-03-26 05:14:20,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 05:14:20,319 INFO L142 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size [2021-03-26 05:14:20,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 05:14:20,330 INFO L142 QuantifierPusher]: treesize reduction 21, result has 32.3 percent of original size [2021-03-26 05:14:20,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:14:20,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:14:20,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:14:20,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:14:20,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652586118] [2021-03-26 05:14:20,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:14:20,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-26 05:14:20,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127172624] [2021-03-26 05:14:20,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 05:14:20,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:14:20,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 05:14:20,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-26 05:14:20,342 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 110 [2021-03-26 05:14:20,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 830 transitions, 15995 flow. Second operand has 13 states, 13 states have (on average 42.46153846153846) internal successors, (552), 13 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:14:20,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:14:20,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 110 [2021-03-26 05:14:20,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:14:25,780 INFO L129 PetriNetUnfolder]: 6974/19232 cut-off events. [2021-03-26 05:14:25,780 INFO L130 PetriNetUnfolder]: For 450410/455386 co-relation queries the response was YES. [2021-03-26 05:14:25,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146035 conditions, 19232 events. 6974/19232 cut-off events. For 450410/455386 co-relation queries the response was YES. Maximal size of possible extension queue 1071. Compared 227181 event pairs, 1733 based on Foata normal form. 856/19478 useless extension candidates. Maximal degree in co-relation 145482. Up to 9915 conditions per place. [2021-03-26 05:14:26,000 INFO L132 encePairwiseOnDemand]: 75/110 looper letters, 583 selfloop transitions, 397 changer transitions 2/1051 dead transitions. [2021-03-26 05:14:26,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 1051 transitions, 21759 flow [2021-03-26 05:14:26,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 05:14:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 05:14:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 877 transitions. [2021-03-26 05:14:26,002 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46898395721925135 [2021-03-26 05:14:26,002 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 877 transitions. [2021-03-26 05:14:26,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 877 transitions. [2021-03-26 05:14:26,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:14:26,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 877 transitions. [2021-03-26 05:14:26,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 51.588235294117645) internal successors, (877), 17 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:14:26,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:14:26,005 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 110.0) internal successors, (1980), 18 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:14:26,005 INFO L185 Difference]: Start difference. First operand has 238 places, 830 transitions, 15995 flow. Second operand 17 states and 877 transitions. [2021-03-26 05:14:26,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 1051 transitions, 21759 flow [2021-03-26 05:14:28,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 1051 transitions, 21205 flow, removed 258 selfloop flow, removed 2 redundant places. [2021-03-26 05:14:28,485 INFO L241 Difference]: Finished difference. Result has 262 places, 962 transitions, 19226 flow [2021-03-26 05:14:28,485 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=15365, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=820, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=19226, PETRI_PLACES=262, PETRI_TRANSITIONS=962} [2021-03-26 05:14:28,485 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 214 predicate places. [2021-03-26 05:14:28,485 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:14:28,485 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 262 places, 962 transitions, 19226 flow [2021-03-26 05:14:28,485 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 262 places, 962 transitions, 19226 flow [2021-03-26 05:14:28,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 262 places, 962 transitions, 19226 flow [2021-03-26 05:14:31,396 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([154] L68-->thread3EXIT: Formula: (= v_n3_68 0) InVars {} OutVars{n3=v_n3_68} AuxVars[] AssignedVars[n3][151], [10#thread1EXITtrue, 276#true, 1558#(and (<= 0 n3) (<= n3 n1) (<= 0 n2)), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), 32#L77true, Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 1568#(and (<= (+ n2 1) n1) (<= 0 n3) (<= 1 n2)), 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 1540#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 1546#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), Black: 1548#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), Black: 1550#(and (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1552#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), 40#thread2EXITtrue, Black: 1554#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 1556#(and (<= 1 n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1560#(and (<= 0 n1) (<= 0 n3) (<= 1 n2)), Black: 1562#(and (<= (+ n2 1) n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1564#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), Black: 1566#(and (<= n1 n3) (<= (+ n2 1) n1) (<= n3 n1) (<= 1 n2)), 50#thread3EXITtrue, 1333#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 548#(and (<= 0 n1) (<= 0 n3)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 67#true, 1094#(and (<= i1 0) (<= 0 i1)), Black: 325#e2, Black: 1345#(and (<= 1 n1) (<= n2 n3) (<= 1 n2)), Black: 1331#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 1347#(and (< n2 n1) (<= n2 n3) (<= 1 n2)), Black: 1332#(and (<= 0 n1) (<= n2 n3) (<= 0 n2)), Black: 1334#(and (<= 1 n1) (<= 0 n3) (<= 0 n2)), Black: 1339#(and (<= 1 n1) (<= n2 n3) (<= 0 n2)), Black: 1341#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), Black: 1343#(and (< n2 n1) (<= 0 n3) (<= 1 n2)), Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 348#e3, Black: 1109#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 1093#(and (<= i 0) (<= 0 i)), 352#true, Black: 1111#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1)), Black: 1095#(and (<= 1 i) (<= i 1)), Black: 1097#(and (<= 2 i) (<= i 2)), Black: 1117#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 1103#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2)), 385#true, 654#true, Black: 657#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 658#(and (<= n1 n3) (<= 0 n1) (<= n2 n3)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 659#(and (<= n1 n3) (<= 0 n1)), Black: 389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 660#(and (<= n1 (+ n3 1)) (<= 1 n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 661#(and (<= n1 n3) (<= 1 n1)), Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 663#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), Black: 690#e1, 963#true, Black: 967#(and (<= n2 n3) (<= 0 n2)), 1995#true, Black: 968#(and (<= n2 (+ n3 1)) (<= 1 n2)), Black: 969#(and (<= n2 n3) (<= 1 n2)), 1230#true, Black: 2000#(and (<= n1 n2) (<= 0 n1) (or (and (<= 0 n3) (<= n3 n1)) (= n3 n2))), Black: 2017#(and (<= 1 n3) (<= 1 n1) (<= 1 n2) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 2002#(and (or (and (<= (+ n3 1) n1) (<= 0 n3) (<= 0 n2)) (<= n1 (+ n2 1))) (<= 1 n1)), Black: 2003#(and (<= 1 n1) (or (<= n1 n2) (and (<= (+ n3 1) n1) (<= 0 n3) (<= 1 n2)))), Black: 1248#(and (<= (+ n3 1) n1) (<= 0 n3) (or (<= (+ n3 2) n2) (<= (+ n3 2) n1))), Black: 2019#(and (<= 1 n3) (<= 1 n1) (<= (+ n3 1) n2)), Black: 1234#(and (or (and (<= n3 n2) (<= n3 n1)) (<= (+ n3 1) n1)) (<= 0 n3)), Black: 2005#(and (<= 0 n3) (or (<= (+ n3 2) n2) (<= (+ n3 2) n1))), Black: 1250#(and (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 1235#(and (<= 0 n3) (or (<= (+ n3 2) n1) (and (<= (+ n3 1) n1) (<= n3 n2)))), Black: 2021#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 1252#(and (<= (+ n3 1) n1) (<= 0 n3) (not (= n3 0))), Black: 2013#(and (or (<= n1 n2) (and (<= 0 n3) (<= 1 n2))) (or (<= n1 n2) (<= (+ n3 2) n1)) (<= 1 n1)), Black: 1254#(and (or (<= (+ n3 2) n1) (<= n3 n2)) (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 1998#(and (<= n1 n2) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 1256#(and (<= 0 n3) (or (<= (+ n3 2) n1) (and (<= (+ n3 1) n1) (<= n3 n2))) (not (= n3 0))), Black: 2015#(and (<= 1 n1) (<= 0 n3) (<= 1 n2) (or (<= (+ n3 2) n2) (<= (+ n3 2) n1))), Black: 1244#(and (or (<= n1 n2) (<= (+ n3 2) n1)) (<= (+ n3 1) n1) (<= 0 n3)), Black: 1246#(and (or (<= (+ n3 2) n1) (and (<= n3 n2) (or (<= (+ n2 1) n1) (<= (+ n3 1) n2)))) (<= 0 n3) (<= n3 n1))]) [2021-03-26 05:14:31,397 INFO L384 tUnfolder$Statistics]: this new event has 31 ancestors and is cut-off event [2021-03-26 05:14:31,397 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2021-03-26 05:14:31,397 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2021-03-26 05:14:31,397 INFO L387 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2021-03-26 05:14:31,750 INFO L129 PetriNetUnfolder]: 6087/18132 cut-off events. [2021-03-26 05:14:31,750 INFO L130 PetriNetUnfolder]: For 364714/367676 co-relation queries the response was YES. [2021-03-26 05:14:31,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127302 conditions, 18132 events. 6087/18132 cut-off events. For 364714/367676 co-relation queries the response was YES. Maximal size of possible extension queue 1109. Compared 223735 event pairs, 1453 based on Foata normal form. 869/18065 useless extension candidates. Maximal degree in co-relation 126817. Up to 3998 conditions per place. [2021-03-26 05:14:32,165 INFO L142 LiptonReduction]: Number of co-enabled transitions 7790 [2021-03-26 05:15:09,986 INFO L154 LiptonReduction]: Checked pairs total: 2511 [2021-03-26 05:15:09,987 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-26 05:15:09,987 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41502 [2021-03-26 05:15:09,988 INFO L480 AbstractCegarLoop]: Abstraction has has 262 places, 962 transitions, 19244 flow [2021-03-26 05:15:09,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 42.46153846153846) internal successors, (552), 13 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:15:09,988 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:15:09,988 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:15:09,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 05:15:09,989 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:15:09,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:15:09,989 INFO L82 PathProgramCache]: Analyzing trace with hash -145717027, now seen corresponding path program 1 times [2021-03-26 05:15:09,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:15:09,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038005068] [2021-03-26 05:15:09,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:15:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:15:10,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:10,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:15:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:10,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:15:10,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:10,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:15:10,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:10,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:15:10,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:10,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:15:10,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:10,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:15:10,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:10,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:15:10,038 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 05:15:10,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:15:10,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:10,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:15:10,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:15:10,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038005068] [2021-03-26 05:15:10,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:15:10,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:15:10,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290472797] [2021-03-26 05:15:10,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:15:10,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:15:10,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:15:10,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:15:10,047 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 119 [2021-03-26 05:15:10,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 962 transitions, 19244 flow. Second operand has 9 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) [2021-03-26 05:15:10,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:15:10,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 119 [2021-03-26 05:15:10,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:15:15,570 INFO L129 PetriNetUnfolder]: 5821/16817 cut-off events. [2021-03-26 05:15:15,571 INFO L130 PetriNetUnfolder]: For 400557/404199 co-relation queries the response was YES. [2021-03-26 05:15:15,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130296 conditions, 16817 events. 5821/16817 cut-off events. For 400557/404199 co-relation queries the response was YES. Maximal size of possible extension queue 922. Compared 199407 event pairs, 978 based on Foata normal form. 1249/17489 useless extension candidates. Maximal degree in co-relation 130160. Up to 3564 conditions per place. [2021-03-26 05:15:15,825 INFO L132 encePairwiseOnDemand]: 105/119 looper letters, 570 selfloop transitions, 425 changer transitions 6/1070 dead transitions. [2021-03-26 05:15:15,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 1070 transitions, 23100 flow [2021-03-26 05:15:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 05:15:15,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 05:15:15,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 604 transitions. [2021-03-26 05:15:15,826 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4614209320091673 [2021-03-26 05:15:15,826 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 604 transitions. [2021-03-26 05:15:15,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 604 transitions. [2021-03-26 05:15:15,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:15:15,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 604 transitions. [2021-03-26 05:15:15,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.90909090909091) internal successors, (604), 11 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:15:15,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 119.0) internal successors, (1428), 12 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:15:15,829 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 119.0) internal successors, (1428), 12 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:15:15,829 INFO L185 Difference]: Start difference. First operand has 262 places, 962 transitions, 19244 flow. Second operand 11 states and 604 transitions. [2021-03-26 05:15:15,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 1070 transitions, 23100 flow [2021-03-26 05:15:18,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 1070 transitions, 22828 flow, removed 136 selfloop flow, removed 1 redundant places. [2021-03-26 05:15:18,130 INFO L241 Difference]: Finished difference. Result has 273 places, 947 transitions, 19547 flow [2021-03-26 05:15:18,131 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=18316, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=405, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19547, PETRI_PLACES=273, PETRI_TRANSITIONS=947} [2021-03-26 05:15:18,131 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 225 predicate places. [2021-03-26 05:15:18,131 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:15:18,131 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 273 places, 947 transitions, 19547 flow [2021-03-26 05:15:18,131 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 273 places, 947 transitions, 19547 flow [2021-03-26 05:15:18,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 273 places, 947 transitions, 19547 flow [2021-03-26 05:15:19,444 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([132] L63-->L64: Formula: (or (= v_n1_14 0) (and (not (= v_n1_14 v_n3_12)) (not (< v_n1_14 v_n3_12)))) InVars {n3=v_n3_12, n1=v_n1_14} OutVars{n3=v_n3_12, n1=v_n1_14} AuxVars[] AssignedVars[][146], [10#thread1EXITtrue, 276#true, 1560#(and (<= 0 n1) (<= 0 n3) (<= 1 n2)), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), 32#L77true, Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 1568#(and (<= (+ n2 1) n1) (<= 0 n3) (<= 1 n2)), Black: 1540#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 1546#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), 548#(and (<= 0 n1) (<= 0 n3)), Black: 1548#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), 38#L64true, Black: 1550#(and (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1552#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 1554#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 1556#(and (<= 1 n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1558#(and (<= 0 n3) (<= n3 n1) (<= 0 n2)), Black: 1562#(and (<= (+ n2 1) n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), 44#L49true, Black: 1564#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), Black: 1566#(and (<= n1 n3) (<= (+ n2 1) n1) (<= n3 n1) (<= 1 n2)), 1333#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 67#true, Black: 325#e2, Black: 1345#(and (<= 1 n1) (<= n2 n3) (<= 1 n2)), Black: 1331#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 1347#(and (< n2 n1) (<= n2 n3) (<= 1 n2)), Black: 1332#(and (<= 0 n1) (<= n2 n3) (<= 0 n2)), Black: 1334#(and (<= 1 n1) (<= 0 n3) (<= 0 n2)), Black: 1339#(and (<= 1 n1) (<= n2 n3) (<= 0 n2)), Black: 1341#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), 1103#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 1343#(and (< n2 n1) (<= 0 n3) (<= 1 n2)), Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 348#e3, Black: 1109#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 352#true, Black: 1093#(and (<= i 0) (<= 0 i)), Black: 1094#(and (<= i1 0) (<= 0 i1)), Black: 1111#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1)), Black: 1095#(and (<= 1 i) (<= i 1)), Black: 1097#(and (<= 2 i) (<= i 2)), Black: 1117#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 365#(and (<= 1 n3) (<= (+ n3 1) n2)), 2428#(and (<= 0 n1) (<= 0 n3) (<= 1 n2)), 389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), Black: 2434#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), Black: 2438#(and (< n1 (+ n2 1)) (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 2430#(and (<= 0 n3) (<= n2 n1) (<= 1 n2)), 658#(and (<= n1 n3) (<= 0 n1) (<= n2 n3)), Black: 657#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 659#(and (<= n1 n3) (<= 0 n1)), Black: 391#(and (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 660#(and (<= n1 (+ n3 1)) (<= 1 n1)), Black: 661#(and (<= n1 n3) (<= 1 n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 663#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 394#(and (< n2 n1) (<= 2 n2)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 400#(and (<= n1 n3) (< n2 n1) (<= n3 n1) (< 0 n1)), Black: 402#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), Black: 408#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (<= 1 n2)), Black: 690#e1, 963#true, 1995#true, Black: 967#(and (<= n2 n3) (<= 0 n2)), Black: 968#(and (<= n2 (+ n3 1)) (<= 1 n2)), Black: 969#(and (<= n2 n3) (<= 1 n2)), 1230#true, Black: 2000#(and (<= n1 n2) (<= 0 n1) (or (and (<= 0 n3) (<= n3 n1)) (= n3 n2))), Black: 2017#(and (<= 1 n3) (<= 1 n1) (<= 1 n2) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 2002#(and (or (and (<= (+ n3 1) n1) (<= 0 n3) (<= 0 n2)) (<= n1 (+ n2 1))) (<= 1 n1)), Black: 1248#(and (<= (+ n3 1) n1) (<= 0 n3) (or (<= (+ n3 2) n2) (<= (+ n3 2) n1))), Black: 2003#(and (<= 1 n1) (or (<= n1 n2) (and (<= (+ n3 1) n1) (<= 0 n3) (<= 1 n2)))), Black: 1234#(and (or (and (<= n3 n2) (<= n3 n1)) (<= (+ n3 1) n1)) (<= 0 n3)), Black: 2019#(and (<= 1 n3) (<= 1 n1) (<= (+ n3 1) n2)), Black: 1250#(and (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 2005#(and (<= 0 n3) (or (<= (+ n3 2) n2) (<= (+ n3 2) n1))), Black: 1235#(and (<= 0 n3) (or (<= (+ n3 2) n1) (and (<= (+ n3 1) n1) (<= n3 n2)))), Black: 2021#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 2013#(and (or (<= n1 n2) (and (<= 0 n3) (<= 1 n2))) (or (<= n1 n2) (<= (+ n3 2) n1)) (<= 1 n1)), Black: 1252#(and (<= (+ n3 1) n1) (<= 0 n3) (not (= n3 0))), Black: 1254#(and (or (<= (+ n3 2) n1) (<= n3 n2)) (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 1998#(and (<= n1 n2) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 2015#(and (<= 1 n1) (<= 0 n3) (<= 1 n2) (or (<= (+ n3 2) n2) (<= (+ n3 2) n1))), Black: 1244#(and (or (<= n1 n2) (<= (+ n3 2) n1)) (<= (+ n3 1) n1) (<= 0 n3)), Black: 1246#(and (or (<= (+ n3 2) n1) (and (<= n3 n2) (or (<= (+ n2 1) n1) (<= (+ n3 1) n2)))) (<= 0 n3) (<= n3 n1))]) [2021-03-26 05:15:19,445 INFO L384 tUnfolder$Statistics]: this new event has 24 ancestors and is cut-off event [2021-03-26 05:15:19,445 INFO L387 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2021-03-26 05:15:19,445 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2021-03-26 05:15:19,445 INFO L387 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2021-03-26 05:15:20,907 INFO L129 PetriNetUnfolder]: 4804/15493 cut-off events. [2021-03-26 05:15:20,908 INFO L130 PetriNetUnfolder]: For 331348/333551 co-relation queries the response was YES. [2021-03-26 05:15:21,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111910 conditions, 15493 events. 4804/15493 cut-off events. For 331348/333551 co-relation queries the response was YES. Maximal size of possible extension queue 912. Compared 192824 event pairs, 1215 based on Foata normal form. 649/15419 useless extension candidates. Maximal degree in co-relation 111518. Up to 3174 conditions per place. [2021-03-26 05:15:21,323 INFO L142 LiptonReduction]: Number of co-enabled transitions 7120 [2021-03-26 05:15:52,491 INFO L154 LiptonReduction]: Checked pairs total: 1258 [2021-03-26 05:15:52,491 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 05:15:52,491 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34360 [2021-03-26 05:15:52,493 INFO L480 AbstractCegarLoop]: Abstraction has has 273 places, 947 transitions, 19563 flow [2021-03-26 05:15:52,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 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) [2021-03-26 05:15:52,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:15:52,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:15:52,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 05:15:52,493 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:15:52,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:15:52,493 INFO L82 PathProgramCache]: Analyzing trace with hash 573195163, now seen corresponding path program 1 times [2021-03-26 05:15:52,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:15:52,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565169100] [2021-03-26 05:15:52,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:15:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:15:52,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:52,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:15:52,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:52,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:15:52,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:52,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:15:52,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:52,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 05:15:52,532 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-03-26 05:15:52,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:15:52,538 INFO L142 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-03-26 05:15:52,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:15:52,545 INFO L142 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-03-26 05:15:52,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:15:52,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:52,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:15:52,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:52,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:15:52,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:15:52,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:15:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:15:52,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565169100] [2021-03-26 05:15:52,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:15:52,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:15:52,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9661385] [2021-03-26 05:15:52,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:15:52,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:15:52,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:15:52,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:15:52,559 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 127 [2021-03-26 05:15:52,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 947 transitions, 19563 flow. Second operand has 8 states, 8 states have (on average 43.375) internal successors, (347), 8 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:15:52,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:15:52,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 127 [2021-03-26 05:15:52,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:15:57,284 INFO L129 PetriNetUnfolder]: 5258/15256 cut-off events. [2021-03-26 05:15:57,285 INFO L130 PetriNetUnfolder]: For 397532/400993 co-relation queries the response was YES. [2021-03-26 05:15:57,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123051 conditions, 15256 events. 5258/15256 cut-off events. For 397532/400993 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 177783 event pairs, 1513 based on Foata normal form. 504/15204 useless extension candidates. Maximal degree in co-relation 122586. Up to 8360 conditions per place. [2021-03-26 05:15:57,460 INFO L132 encePairwiseOnDemand]: 106/127 looper letters, 665 selfloop transitions, 201 changer transitions 0/935 dead transitions. [2021-03-26 05:15:57,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 935 transitions, 20863 flow [2021-03-26 05:15:57,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:15:57,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:15:57,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 488 transitions. [2021-03-26 05:15:57,461 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42694663167104113 [2021-03-26 05:15:57,461 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 488 transitions. [2021-03-26 05:15:57,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 488 transitions. [2021-03-26 05:15:57,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:15:57,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 488 transitions. [2021-03-26 05:15:57,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 54.22222222222222) internal successors, (488), 9 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:15:57,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:15:57,463 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:15:57,463 INFO L185 Difference]: Start difference. First operand has 273 places, 947 transitions, 19563 flow. Second operand 9 states and 488 transitions. [2021-03-26 05:15:57,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 935 transitions, 20863 flow [2021-03-26 05:15:59,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 935 transitions, 20477 flow, removed 92 selfloop flow, removed 4 redundant places. [2021-03-26 05:15:59,493 INFO L241 Difference]: Finished difference. Result has 278 places, 876 transitions, 18370 flow [2021-03-26 05:15:59,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=17436, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=859, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=18370, PETRI_PLACES=278, PETRI_TRANSITIONS=876} [2021-03-26 05:15:59,493 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 230 predicate places. [2021-03-26 05:15:59,493 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:15:59,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 876 transitions, 18370 flow [2021-03-26 05:15:59,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 876 transitions, 18370 flow [2021-03-26 05:15:59,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 278 places, 876 transitions, 18370 flow [2021-03-26 05:16:01,958 INFO L129 PetriNetUnfolder]: 4378/14172 cut-off events. [2021-03-26 05:16:01,958 INFO L130 PetriNetUnfolder]: For 286849/288858 co-relation queries the response was YES. [2021-03-26 05:16:02,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101634 conditions, 14172 events. 4378/14172 cut-off events. For 286849/288858 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 173743 event pairs, 1191 based on Foata normal form. 589/14073 useless extension candidates. Maximal degree in co-relation 101238. Up to 2960 conditions per place. [2021-03-26 05:16:02,310 INFO L142 LiptonReduction]: Number of co-enabled transitions 6504 [2021-03-26 05:16:23,016 INFO L154 LiptonReduction]: Checked pairs total: 1509 [2021-03-26 05:16:23,016 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 05:16:23,016 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23523 [2021-03-26 05:16:23,018 INFO L480 AbstractCegarLoop]: Abstraction has has 278 places, 876 transitions, 18384 flow [2021-03-26 05:16:23,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 43.375) internal successors, (347), 8 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:23,018 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:23,018 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:23,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 05:16:23,018 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:23,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:23,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1808530777, now seen corresponding path program 1 times [2021-03-26 05:16:23,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:23,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816792823] [2021-03-26 05:16:23,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:23,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:23,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:16:23,046 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 05:16:23,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:16:23,048 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 05:16:23,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:16:23,050 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-26 05:16:23,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:16:23,055 INFO L142 QuantifierPusher]: treesize reduction 17, result has 37.0 percent of original size [2021-03-26 05:16:23,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:16:23,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:23,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:23,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:23,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:16:23,071 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 05:16:23,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:16:23,077 INFO L142 QuantifierPusher]: treesize reduction 11, result has 52.2 percent of original size [2021-03-26 05:16:23,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:16:23,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:23,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:16:23,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816792823] [2021-03-26 05:16:23,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:23,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:16:23,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447588452] [2021-03-26 05:16:23,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:16:23,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:23,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:16:23,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:16:23,087 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 134 [2021-03-26 05:16:23,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 876 transitions, 18384 flow. Second operand has 9 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) [2021-03-26 05:16:23,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:23,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 134 [2021-03-26 05:16:23,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:27,779 INFO L129 PetriNetUnfolder]: 5099/14886 cut-off events. [2021-03-26 05:16:27,780 INFO L130 PetriNetUnfolder]: For 365650/369298 co-relation queries the response was YES. [2021-03-26 05:16:27,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118237 conditions, 14886 events. 5099/14886 cut-off events. For 365650/369298 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 172912 event pairs, 1222 based on Foata normal form. 674/15034 useless extension candidates. Maximal degree in co-relation 117768. Up to 7918 conditions per place. [2021-03-26 05:16:27,945 INFO L132 encePairwiseOnDemand]: 110/134 looper letters, 664 selfloop transitions, 217 changer transitions 42/992 dead transitions. [2021-03-26 05:16:27,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 992 transitions, 22386 flow [2021-03-26 05:16:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 05:16:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 05:16:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 867 transitions. [2021-03-26 05:16:27,947 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3805970149253731 [2021-03-26 05:16:27,947 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 867 transitions. [2021-03-26 05:16:27,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 867 transitions. [2021-03-26 05:16:27,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:27,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 867 transitions. [2021-03-26 05:16:27,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 51.0) internal successors, (867), 17 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:27,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 134.0) internal successors, (2412), 18 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:27,950 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 134.0) internal successors, (2412), 18 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:27,950 INFO L185 Difference]: Start difference. First operand has 278 places, 876 transitions, 18384 flow. Second operand 17 states and 867 transitions. [2021-03-26 05:16:27,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 992 transitions, 22386 flow [2021-03-26 05:16:29,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 992 transitions, 22197 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-26 05:16:29,950 INFO L241 Difference]: Finished difference. Result has 298 places, 881 transitions, 19032 flow [2021-03-26 05:16:29,951 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=17291, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=835, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=19032, PETRI_PLACES=298, PETRI_TRANSITIONS=881} [2021-03-26 05:16:29,951 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 250 predicate places. [2021-03-26 05:16:29,951 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:29,951 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 881 transitions, 19032 flow [2021-03-26 05:16:29,951 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 881 transitions, 19032 flow [2021-03-26 05:16:29,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 298 places, 881 transitions, 19032 flow [2021-03-26 05:16:32,658 INFO L129 PetriNetUnfolder]: 4144/13300 cut-off events. [2021-03-26 05:16:32,659 INFO L130 PetriNetUnfolder]: For 311865/314075 co-relation queries the response was YES. [2021-03-26 05:16:32,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100299 conditions, 13300 events. 4144/13300 cut-off events. For 311865/314075 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 160022 event pairs, 1041 based on Foata normal form. 577/13204 useless extension candidates. Maximal degree in co-relation 99894. Up to 2681 conditions per place. [2021-03-26 05:16:32,902 INFO L142 LiptonReduction]: Number of co-enabled transitions 6302 [2021-03-26 05:16:52,693 INFO L154 LiptonReduction]: Checked pairs total: 949 [2021-03-26 05:16:52,693 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 05:16:52,693 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22742 [2021-03-26 05:16:52,695 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 881 transitions, 19066 flow [2021-03-26 05:16:52,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 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) [2021-03-26 05:16:52,695 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:52,695 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:52,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 05:16:52,695 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:52,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:52,696 INFO L82 PathProgramCache]: Analyzing trace with hash 621435287, now seen corresponding path program 1 times [2021-03-26 05:16:52,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:52,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36055799] [2021-03-26 05:16:52,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:52,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:52,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:16:52,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:52,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:52,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:52,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:52,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:52,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:16:52,722 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-03-26 05:16:52,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:52,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:52,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:16:52,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:52,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:16:52,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36055799] [2021-03-26 05:16:52,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:52,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:16:52,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255409055] [2021-03-26 05:16:52,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:16:52,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:52,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:16:52,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:16:52,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 141 [2021-03-26 05:16:52,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 881 transitions, 19066 flow. Second operand has 8 states, 8 states have (on average 43.375) internal successors, (347), 8 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:52,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:52,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 141 [2021-03-26 05:16:52,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:57,204 INFO L129 PetriNetUnfolder]: 4289/12989 cut-off events. [2021-03-26 05:16:57,204 INFO L130 PetriNetUnfolder]: For 351306/353340 co-relation queries the response was YES. [2021-03-26 05:16:57,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106726 conditions, 12989 events. 4289/12989 cut-off events. For 351306/353340 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 150092 event pairs, 896 based on Foata normal form. 823/13387 useless extension candidates. Maximal degree in co-relation 106241. Up to 2327 conditions per place. [2021-03-26 05:16:57,362 INFO L132 encePairwiseOnDemand]: 104/141 looper letters, 603 selfloop transitions, 511 changer transitions 4/1187 dead transitions. [2021-03-26 05:16:57,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 1187 transitions, 27494 flow [2021-03-26 05:16:57,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 05:16:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 05:16:57,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 673 transitions. [2021-03-26 05:16:57,364 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39775413711583923 [2021-03-26 05:16:57,364 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 673 transitions. [2021-03-26 05:16:57,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 673 transitions. [2021-03-26 05:16:57,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:57,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 673 transitions. [2021-03-26 05:16:57,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.083333333333336) internal successors, (673), 12 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,366 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:57,366 INFO L185 Difference]: Start difference. First operand has 298 places, 881 transitions, 19066 flow. Second operand 12 states and 673 transitions. [2021-03-26 05:16:57,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 1187 transitions, 27494 flow [2021-03-26 05:16:59,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 1187 transitions, 27060 flow, removed 192 selfloop flow, removed 5 redundant places. [2021-03-26 05:16:59,263 INFO L241 Difference]: Finished difference. Result has 313 places, 1008 transitions, 23310 flow [2021-03-26 05:16:59,264 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=18305, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=860, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=369, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=23310, PETRI_PLACES=313, PETRI_TRANSITIONS=1008} [2021-03-26 05:16:59,264 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 265 predicate places. [2021-03-26 05:16:59,264 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:59,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 313 places, 1008 transitions, 23310 flow [2021-03-26 05:16:59,264 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 313 places, 1008 transitions, 23310 flow [2021-03-26 05:16:59,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 313 places, 1008 transitions, 23310 flow [2021-03-26 05:17:01,622 INFO L129 PetriNetUnfolder]: 3575/11793 cut-off events. [2021-03-26 05:17:01,622 INFO L130 PetriNetUnfolder]: For 322572/324498 co-relation queries the response was YES. [2021-03-26 05:17:01,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94891 conditions, 11793 events. 3575/11793 cut-off events. For 322572/324498 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 140461 event pairs, 835 based on Foata normal form. 452/11693 useless extension candidates. Maximal degree in co-relation 94465. Up to 2135 conditions per place. [2021-03-26 05:17:01,921 INFO L142 LiptonReduction]: Number of co-enabled transitions 6098 [2021-03-26 05:17:15,405 INFO L154 LiptonReduction]: Checked pairs total: 444 [2021-03-26 05:17:15,405 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 05:17:15,405 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16141 [2021-03-26 05:17:15,407 INFO L480 AbstractCegarLoop]: Abstraction has has 313 places, 1008 transitions, 23314 flow [2021-03-26 05:17:15,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 43.375) internal successors, (347), 8 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:15,407 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:17:15,407 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:17:15,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 05:17:15,407 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:17:15,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:17:15,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1436300894, now seen corresponding path program 1 times [2021-03-26 05:17:15,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:17:15,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319917766] [2021-03-26 05:17:15,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:17:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:17:15,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:15,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:15,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:15,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:15,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:15,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:15,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:15,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:15,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:15,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:15,445 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 05:17:15,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:17:15,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319917766] [2021-03-26 05:17:15,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:17:15,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:17:15,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804610739] [2021-03-26 05:17:15,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:17:15,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:17:15,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:17:15,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:17:15,453 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 143 [2021-03-26 05:17:15,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 1008 transitions, 23314 flow. Second operand has 8 states, 8 states have (on average 126.875) internal successors, (1015), 8 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:15,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:17:15,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 143 [2021-03-26 05:17:15,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:17:19,749 INFO L129 PetriNetUnfolder]: 3750/12281 cut-off events. [2021-03-26 05:17:19,749 INFO L130 PetriNetUnfolder]: For 325840/328138 co-relation queries the response was YES. [2021-03-26 05:17:19,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99552 conditions, 12281 events. 3750/12281 cut-off events. For 325840/328138 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 146361 event pairs, 1018 based on Foata normal form. 710/12387 useless extension candidates. Maximal degree in co-relation 99108. Up to 2172 conditions per place. [2021-03-26 05:17:19,903 INFO L132 encePairwiseOnDemand]: 130/143 looper letters, 37 selfloop transitions, 39 changer transitions 108/1026 dead transitions. [2021-03-26 05:17:19,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 1026 transitions, 23583 flow [2021-03-26 05:17:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 05:17:19,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 05:17:19,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1299 transitions. [2021-03-26 05:17:19,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9083916083916084 [2021-03-26 05:17:19,904 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1299 transitions. [2021-03-26 05:17:19,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1299 transitions. [2021-03-26 05:17:19,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:17:19,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1299 transitions. [2021-03-26 05:17:19,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 129.9) internal successors, (1299), 10 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:19,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 143.0) internal successors, (1573), 11 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:19,907 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 143.0) internal successors, (1573), 11 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:19,907 INFO L185 Difference]: Start difference. First operand has 313 places, 1008 transitions, 23314 flow. Second operand 10 states and 1299 transitions. [2021-03-26 05:17:19,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 1026 transitions, 23583 flow [2021-03-26 05:17:22,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 1026 transitions, 23286 flow, removed 139 selfloop flow, removed 2 redundant places. [2021-03-26 05:17:22,168 INFO L241 Difference]: Finished difference. Result has 325 places, 911 transitions, 20598 flow [2021-03-26 05:17:22,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=23017, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1008, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=972, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20598, PETRI_PLACES=325, PETRI_TRANSITIONS=911} [2021-03-26 05:17:22,168 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 277 predicate places. [2021-03-26 05:17:22,168 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:17:22,168 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 325 places, 911 transitions, 20598 flow [2021-03-26 05:17:22,169 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 325 places, 911 transitions, 20598 flow [2021-03-26 05:17:22,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 320 places, 911 transitions, 20598 flow [2021-03-26 05:17:24,379 INFO L129 PetriNetUnfolder]: 3381/11317 cut-off events. [2021-03-26 05:17:24,379 INFO L130 PetriNetUnfolder]: For 305951/307802 co-relation queries the response was YES. [2021-03-26 05:17:24,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91955 conditions, 11317 events. 3381/11317 cut-off events. For 305951/307802 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 134091 event pairs, 777 based on Foata normal form. 467/11269 useless extension candidates. Maximal degree in co-relation 91809. Up to 2123 conditions per place. [2021-03-26 05:17:24,708 INFO L142 LiptonReduction]: Number of co-enabled transitions 5698 [2021-03-26 05:17:36,876 INFO L154 LiptonReduction]: Checked pairs total: 114 [2021-03-26 05:17:36,876 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 05:17:36,876 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14708 [2021-03-26 05:17:36,878 INFO L480 AbstractCegarLoop]: Abstraction has has 319 places, 910 transitions, 20606 flow [2021-03-26 05:17:36,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 126.875) internal successors, (1015), 8 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:36,878 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:17:36,878 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:17:36,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 05:17:36,879 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:17:36,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:17:36,879 INFO L82 PathProgramCache]: Analyzing trace with hash -2068304874, now seen corresponding path program 2 times [2021-03-26 05:17:36,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:17:36,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850033163] [2021-03-26 05:17:36,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:17:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:17:36,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:17:36,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:17:36,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:17:36,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:17:36,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:36,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:17:36,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:36,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:36,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:17:36,969 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 05:17:36,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:17:36,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:17:36,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:17:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:17:36,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850033163] [2021-03-26 05:17:36,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:17:36,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-26 05:17:36,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67496853] [2021-03-26 05:17:36,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 05:17:36,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:17:36,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 05:17:36,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-03-26 05:17:36,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 146 [2021-03-26 05:17:36,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 910 transitions, 20606 flow. Second operand has 12 states, 12 states have (on average 45.583333333333336) internal successors, (547), 12 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:36,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:17:36,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 146 [2021-03-26 05:17:36,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:17:42,199 INFO L129 PetriNetUnfolder]: 4688/14245 cut-off events. [2021-03-26 05:17:42,199 INFO L130 PetriNetUnfolder]: For 434100/436550 co-relation queries the response was YES. [2021-03-26 05:17:42,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126193 conditions, 14245 events. 4688/14245 cut-off events. For 434100/436550 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 167003 event pairs, 773 based on Foata normal form. 869/14767 useless extension candidates. Maximal degree in co-relation 126045. Up to 3023 conditions per place. [2021-03-26 05:17:42,384 INFO L132 encePairwiseOnDemand]: 107/146 looper letters, 634 selfloop transitions, 531 changer transitions 14/1258 dead transitions. [2021-03-26 05:17:42,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1258 transitions, 30047 flow [2021-03-26 05:17:42,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-26 05:17:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-26 05:17:42,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 908 transitions. [2021-03-26 05:17:42,385 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3886986301369863 [2021-03-26 05:17:42,385 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 908 transitions. [2021-03-26 05:17:42,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 908 transitions. [2021-03-26 05:17:42,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:17:42,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 908 transitions. [2021-03-26 05:17:42,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 56.75) internal successors, (908), 16 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:42,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 146.0) internal successors, (2482), 17 states have internal predecessors, (2482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:42,388 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 146.0) internal successors, (2482), 17 states have internal predecessors, (2482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:17:42,388 INFO L185 Difference]: Start difference. First operand has 319 places, 910 transitions, 20606 flow. Second operand 16 states and 908 transitions. [2021-03-26 05:17:42,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1258 transitions, 30047 flow [2021-03-26 05:17:45,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 1258 transitions, 29576 flow, removed 158 selfloop flow, removed 9 redundant places. [2021-03-26 05:17:45,112 INFO L241 Difference]: Finished difference. Result has 335 places, 1048 transitions, 25059 flow [2021-03-26 05:17:45,113 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=20228, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=910, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=396, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25059, PETRI_PLACES=335, PETRI_TRANSITIONS=1048} [2021-03-26 05:17:45,113 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 287 predicate places. [2021-03-26 05:17:45,113 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:17:45,113 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 335 places, 1048 transitions, 25059 flow [2021-03-26 05:17:45,113 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 335 places, 1048 transitions, 25059 flow [2021-03-26 05:17:45,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 335 places, 1048 transitions, 25059 flow [2021-03-26 05:17:47,951 INFO L129 PetriNetUnfolder]: 3898/12639 cut-off events. [2021-03-26 05:17:47,951 INFO L130 PetriNetUnfolder]: For 402301/404905 co-relation queries the response was YES. [2021-03-26 05:17:48,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108991 conditions, 12639 events. 3898/12639 cut-off events. For 402301/404905 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 151067 event pairs, 864 based on Foata normal form. 597/12758 useless extension candidates. Maximal degree in co-relation 107943. Up to 2514 conditions per place. [2021-03-26 05:17:48,327 INFO L142 LiptonReduction]: Number of co-enabled transitions 6640 [2021-03-26 05:18:08,063 INFO L154 LiptonReduction]: Checked pairs total: 728 [2021-03-26 05:18:08,063 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 05:18:08,063 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22950 [2021-03-26 05:18:08,064 INFO L480 AbstractCegarLoop]: Abstraction has has 335 places, 1048 transitions, 25067 flow [2021-03-26 05:18:08,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 45.583333333333336) internal successors, (547), 12 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:08,065 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:18:08,065 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:18:08,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 05:18:08,065 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:18:08,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:18:08,065 INFO L82 PathProgramCache]: Analyzing trace with hash -682970763, now seen corresponding path program 1 times [2021-03-26 05:18:08,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:18:08,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792335442] [2021-03-26 05:18:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:18:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:18:08,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 05:18:08,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:18:08,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:18:08,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:18:08,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:18:08,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:08,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:08,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:08,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:18:08,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:08,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:18:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:18:08,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792335442] [2021-03-26 05:18:08,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:18:08,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 05:18:08,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186390480] [2021-03-26 05:18:08,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 05:18:08,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:18:08,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 05:18:08,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-03-26 05:18:08,158 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 150 [2021-03-26 05:18:08,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 1048 transitions, 25067 flow. Second operand has 10 states, 10 states have (on average 45.9) internal successors, (459), 10 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:08,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:18:08,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 150 [2021-03-26 05:18:08,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:18:13,014 INFO L129 PetriNetUnfolder]: 4220/12238 cut-off events. [2021-03-26 05:18:13,015 INFO L130 PetriNetUnfolder]: For 429724/431813 co-relation queries the response was YES. [2021-03-26 05:18:13,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114539 conditions, 12238 events. 4220/12238 cut-off events. For 429724/431813 co-relation queries the response was YES. Maximal size of possible extension queue 749. Compared 139686 event pairs, 802 based on Foata normal form. 703/12587 useless extension candidates. Maximal degree in co-relation 113972. Up to 2370 conditions per place. [2021-03-26 05:18:13,180 INFO L132 encePairwiseOnDemand]: 114/150 looper letters, 654 selfloop transitions, 471 changer transitions 42/1220 dead transitions. [2021-03-26 05:18:13,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1220 transitions, 31168 flow [2021-03-26 05:18:13,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 05:18:13,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 05:18:13,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 757 transitions. [2021-03-26 05:18:13,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3882051282051282 [2021-03-26 05:18:13,185 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 757 transitions. [2021-03-26 05:18:13,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 757 transitions. [2021-03-26 05:18:13,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:18:13,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 757 transitions. [2021-03-26 05:18:13,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 58.23076923076923) internal successors, (757), 13 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:13,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 150.0) internal successors, (2100), 14 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:13,188 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 150.0) internal successors, (2100), 14 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:13,188 INFO L185 Difference]: Start difference. First operand has 335 places, 1048 transitions, 25067 flow. Second operand 13 states and 757 transitions. [2021-03-26 05:18:13,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1220 transitions, 31168 flow [2021-03-26 05:18:15,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 1220 transitions, 30860 flow, removed 145 selfloop flow, removed 6 redundant places. [2021-03-26 05:18:15,478 INFO L241 Difference]: Finished difference. Result has 345 places, 1000 transitions, 25580 flow [2021-03-26 05:18:15,478 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=23609, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=985, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=25580, PETRI_PLACES=345, PETRI_TRANSITIONS=1000} [2021-03-26 05:18:15,478 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 297 predicate places. [2021-03-26 05:18:15,479 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:18:15,479 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 345 places, 1000 transitions, 25580 flow [2021-03-26 05:18:15,479 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 345 places, 1000 transitions, 25580 flow [2021-03-26 05:18:15,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 343 places, 1000 transitions, 25580 flow [2021-03-26 05:18:17,673 INFO L129 PetriNetUnfolder]: 3325/10633 cut-off events. [2021-03-26 05:18:17,673 INFO L130 PetriNetUnfolder]: For 356459/358029 co-relation queries the response was YES. [2021-03-26 05:18:17,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93167 conditions, 10633 events. 3325/10633 cut-off events. For 356459/358029 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 125407 event pairs, 835 based on Foata normal form. 447/10623 useless extension candidates. Maximal degree in co-relation 92953. Up to 1925 conditions per place. [2021-03-26 05:18:18,012 INFO L142 LiptonReduction]: Number of co-enabled transitions 5528 [2021-03-26 05:18:24,808 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:18:24,809 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:18:24,809 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9330 [2021-03-26 05:18:24,812 INFO L480 AbstractCegarLoop]: Abstraction has has 343 places, 1000 transitions, 25580 flow [2021-03-26 05:18:24,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 45.9) internal successors, (459), 10 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:24,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:18:24,812 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:18:24,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 05:18:24,812 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:18:24,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:18:24,813 INFO L82 PathProgramCache]: Analyzing trace with hash -897247575, now seen corresponding path program 1 times [2021-03-26 05:18:24,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:18:24,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934762118] [2021-03-26 05:18:24,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:18:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:18:24,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:24,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:24,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:24,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:24,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:24,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:24,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:24,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:24,841 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 05:18:24,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:18:24,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934762118] [2021-03-26 05:18:24,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:18:24,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 05:18:24,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932312199] [2021-03-26 05:18:24,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:18:24,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:18:24,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:18:24,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:18:24,849 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 150 [2021-03-26 05:18:24,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 1000 transitions, 25580 flow. Second operand has 7 states, 7 states have (on average 130.85714285714286) internal successors, (916), 7 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:24,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:18:24,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 150 [2021-03-26 05:18:24,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:18:28,690 INFO L129 PetriNetUnfolder]: 3649/11319 cut-off events. [2021-03-26 05:18:28,690 INFO L130 PetriNetUnfolder]: For 374535/377293 co-relation queries the response was YES. [2021-03-26 05:18:28,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100169 conditions, 11319 events. 3649/11319 cut-off events. For 374535/377293 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 133296 event pairs, 963 based on Foata normal form. 921/11645 useless extension candidates. Maximal degree in co-relation 99936. Up to 2000 conditions per place. [2021-03-26 05:18:28,845 INFO L132 encePairwiseOnDemand]: 136/150 looper letters, 21 selfloop transitions, 22 changer transitions 32/1003 dead transitions. [2021-03-26 05:18:28,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1003 transitions, 25691 flow [2021-03-26 05:18:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:18:28,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:18:28,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 941 transitions. [2021-03-26 05:18:28,846 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8961904761904762 [2021-03-26 05:18:28,846 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 941 transitions. [2021-03-26 05:18:28,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 941 transitions. [2021-03-26 05:18:28,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:18:28,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 941 transitions. [2021-03-26 05:18:28,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 134.42857142857142) internal successors, (941), 7 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:28,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 150.0) internal successors, (1200), 8 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:28,848 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 150.0) internal successors, (1200), 8 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:28,848 INFO L185 Difference]: Start difference. First operand has 343 places, 1000 transitions, 25580 flow. Second operand 7 states and 941 transitions. [2021-03-26 05:18:28,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1003 transitions, 25691 flow [2021-03-26 05:18:31,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 1003 transitions, 25562 flow, removed 43 selfloop flow, removed 7 redundant places. [2021-03-26 05:18:31,213 INFO L241 Difference]: Finished difference. Result has 344 places, 969 transitions, 24735 flow [2021-03-26 05:18:31,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=25451, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=978, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24735, PETRI_PLACES=344, PETRI_TRANSITIONS=969} [2021-03-26 05:18:31,214 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 296 predicate places. [2021-03-26 05:18:31,214 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:18:31,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 969 transitions, 24735 flow [2021-03-26 05:18:31,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 969 transitions, 24735 flow [2021-03-26 05:18:31,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 342 places, 969 transitions, 24735 flow [2021-03-26 05:18:33,374 INFO L129 PetriNetUnfolder]: 3298/10604 cut-off events. [2021-03-26 05:18:33,374 INFO L130 PetriNetUnfolder]: For 352722/354104 co-relation queries the response was YES. [2021-03-26 05:18:33,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93520 conditions, 10604 events. 3298/10604 cut-off events. For 352722/354104 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 125671 event pairs, 834 based on Foata normal form. 421/10578 useless extension candidates. Maximal degree in co-relation 93337. Up to 1915 conditions per place. [2021-03-26 05:18:33,694 INFO L142 LiptonReduction]: Number of co-enabled transitions 5422 [2021-03-26 05:18:40,327 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:18:40,328 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:18:40,328 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9114 [2021-03-26 05:18:40,330 INFO L480 AbstractCegarLoop]: Abstraction has has 342 places, 969 transitions, 24735 flow [2021-03-26 05:18:40,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 130.85714285714286) internal successors, (916), 7 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:40,330 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:18:40,330 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:18:40,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 05:18:40,330 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:18:40,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:18:40,330 INFO L82 PathProgramCache]: Analyzing trace with hash 137987865, now seen corresponding path program 1 times [2021-03-26 05:18:40,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:18:40,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80698247] [2021-03-26 05:18:40,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:18:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:18:40,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:40,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:40,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:40,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:40,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:40,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:40,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:40,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:40,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:40,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:40,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:18:40,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:40,376 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 05:18:40,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:18:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:18:40,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80698247] [2021-03-26 05:18:40,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:18:40,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:18:40,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039727431] [2021-03-26 05:18:40,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:18:40,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:18:40,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:18:40,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:18:40,385 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 150 [2021-03-26 05:18:40,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 969 transitions, 24735 flow. Second operand has 9 states, 9 states have (on average 130.88888888888889) internal successors, (1178), 9 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:40,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:18:40,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 150 [2021-03-26 05:18:40,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:18:44,513 INFO L129 PetriNetUnfolder]: 3607/11328 cut-off events. [2021-03-26 05:18:44,513 INFO L130 PetriNetUnfolder]: For 376225/379035 co-relation queries the response was YES. [2021-03-26 05:18:44,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100933 conditions, 11328 events. 3607/11328 cut-off events. For 376225/379035 co-relation queries the response was YES. Maximal size of possible extension queue 712. Compared 133582 event pairs, 884 based on Foata normal form. 945/11713 useless extension candidates. Maximal degree in co-relation 100716. Up to 2021 conditions per place. [2021-03-26 05:18:44,660 INFO L132 encePairwiseOnDemand]: 134/150 looper letters, 27 selfloop transitions, 31 changer transitions 158/989 dead transitions. [2021-03-26 05:18:44,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 989 transitions, 24985 flow [2021-03-26 05:18:44,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-26 05:18:44,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-26 05:18:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2132 transitions. [2021-03-26 05:18:44,662 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8883333333333333 [2021-03-26 05:18:44,662 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2132 transitions. [2021-03-26 05:18:44,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2132 transitions. [2021-03-26 05:18:44,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:18:44,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2132 transitions. [2021-03-26 05:18:44,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 133.25) internal successors, (2132), 16 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:44,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 150.0) internal successors, (2550), 17 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:44,665 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 150.0) internal successors, (2550), 17 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:18:44,666 INFO L185 Difference]: Start difference. First operand has 342 places, 969 transitions, 24735 flow. Second operand 16 states and 2132 transitions. [2021-03-26 05:18:44,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 989 transitions, 24985 flow [2021-03-26 05:18:47,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 989 transitions, 24734 flow, removed 101 selfloop flow, removed 7 redundant places. [2021-03-26 05:18:47,056 INFO L241 Difference]: Finished difference. Result has 354 places, 822 transitions, 20103 flow [2021-03-26 05:18:47,056 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=24496, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=20103, PETRI_PLACES=354, PETRI_TRANSITIONS=822} [2021-03-26 05:18:47,056 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 306 predicate places. [2021-03-26 05:18:47,056 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:18:47,056 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 354 places, 822 transitions, 20103 flow [2021-03-26 05:18:47,057 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 354 places, 822 transitions, 20103 flow [2021-03-26 05:18:47,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 347 places, 822 transitions, 20103 flow [2021-03-26 05:18:49,015 INFO L129 PetriNetUnfolder]: 3172/9940 cut-off events. [2021-03-26 05:18:49,015 INFO L130 PetriNetUnfolder]: For 328487/329939 co-relation queries the response was YES. [2021-03-26 05:18:49,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88195 conditions, 9940 events. 3172/9940 cut-off events. For 328487/329939 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 114796 event pairs, 814 based on Foata normal form. 427/9964 useless extension candidates. Maximal degree in co-relation 88004. Up to 1907 conditions per place. [2021-03-26 05:18:49,293 INFO L142 LiptonReduction]: Number of co-enabled transitions 4892 [2021-03-26 05:19:09,296 INFO L154 LiptonReduction]: Checked pairs total: 8494 [2021-03-26 05:19:09,296 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-26 05:19:09,296 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22240 [2021-03-26 05:19:09,298 INFO L480 AbstractCegarLoop]: Abstraction has has 347 places, 822 transitions, 20208 flow [2021-03-26 05:19:09,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 130.88888888888889) internal successors, (1178), 9 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:09,298 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:19:09,298 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:19:09,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-26 05:19:09,298 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:19:09,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:19:09,299 INFO L82 PathProgramCache]: Analyzing trace with hash -129472585, now seen corresponding path program 1 times [2021-03-26 05:19:09,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:19:09,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409900164] [2021-03-26 05:19:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:19:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:19:09,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:09,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:19:09,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:09,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:19:09,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:09,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:19:09,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:09,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:19:09,339 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-03-26 05:19:09,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:19:09,345 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 05:19:09,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:19:09,351 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-03-26 05:19:09,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:19:09,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:09,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:19:09,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:19:09,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409900164] [2021-03-26 05:19:09,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:19:09,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:19:09,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031785763] [2021-03-26 05:19:09,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:19:09,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:19:09,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:19:09,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:19:09,360 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 193 [2021-03-26 05:19:09,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 822 transitions, 20208 flow. Second operand has 9 states, 9 states have (on average 49.111111111111114) internal successors, (442), 9 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:09,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:19:09,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 193 [2021-03-26 05:19:09,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:19:13,387 INFO L129 PetriNetUnfolder]: 4199/11970 cut-off events. [2021-03-26 05:19:13,387 INFO L130 PetriNetUnfolder]: For 446802/449833 co-relation queries the response was YES. [2021-03-26 05:19:13,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115405 conditions, 11970 events. 4199/11970 cut-off events. For 446802/449833 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 135634 event pairs, 990 based on Foata normal form. 627/12216 useless extension candidates. Maximal degree in co-relation 115213. Up to 4918 conditions per place. [2021-03-26 05:19:13,542 INFO L132 encePairwiseOnDemand]: 174/193 looper letters, 530 selfloop transitions, 271 changer transitions 102/963 dead transitions. [2021-03-26 05:19:13,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 963 transitions, 25136 flow [2021-03-26 05:19:13,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 05:19:13,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 05:19:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 606 transitions. [2021-03-26 05:19:13,544 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3139896373056995 [2021-03-26 05:19:13,544 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 606 transitions. [2021-03-26 05:19:13,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 606 transitions. [2021-03-26 05:19:13,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:19:13,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 606 transitions. [2021-03-26 05:19:13,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 60.6) internal successors, (606), 10 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:13,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 193.0) internal successors, (2123), 11 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:13,546 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 193.0) internal successors, (2123), 11 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:13,546 INFO L185 Difference]: Start difference. First operand has 347 places, 822 transitions, 20208 flow. Second operand 10 states and 606 transitions. [2021-03-26 05:19:13,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 963 transitions, 25136 flow [2021-03-26 05:19:15,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 963 transitions, 24554 flow, removed 204 selfloop flow, removed 18 redundant places. [2021-03-26 05:19:15,967 INFO L241 Difference]: Finished difference. Result has 346 places, 788 transitions, 19740 flow [2021-03-26 05:19:15,967 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=19421, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=812, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19740, PETRI_PLACES=346, PETRI_TRANSITIONS=788} [2021-03-26 05:19:15,967 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 298 predicate places. [2021-03-26 05:19:15,967 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:19:15,967 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 346 places, 788 transitions, 19740 flow [2021-03-26 05:19:15,967 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 346 places, 788 transitions, 19740 flow [2021-03-26 05:19:15,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 344 places, 788 transitions, 19740 flow [2021-03-26 05:19:18,053 INFO L129 PetriNetUnfolder]: 3240/10345 cut-off events. [2021-03-26 05:19:18,054 INFO L130 PetriNetUnfolder]: For 356866/358705 co-relation queries the response was YES. [2021-03-26 05:19:18,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90768 conditions, 10345 events. 3240/10345 cut-off events. For 356866/358705 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 121549 event pairs, 704 based on Foata normal form. 460/10357 useless extension candidates. Maximal degree in co-relation 90214. Up to 2008 conditions per place. [2021-03-26 05:19:18,351 INFO L142 LiptonReduction]: Number of co-enabled transitions 4740 [2021-03-26 05:19:30,205 INFO L154 LiptonReduction]: Checked pairs total: 1015 [2021-03-26 05:19:30,205 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 05:19:30,205 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14238 [2021-03-26 05:19:30,207 INFO L480 AbstractCegarLoop]: Abstraction has has 344 places, 788 transitions, 19750 flow [2021-03-26 05:19:30,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.111111111111114) internal successors, (442), 9 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:30,207 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:19:30,207 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:19:30,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-26 05:19:30,207 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:19:30,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:19:30,208 INFO L82 PathProgramCache]: Analyzing trace with hash 249281810, now seen corresponding path program 1 times [2021-03-26 05:19:30,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:19:30,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211338269] [2021-03-26 05:19:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:19:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:19:30,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:30,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:19:30,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:30,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:19:30,241 INFO L142 QuantifierPusher]: treesize reduction 17, result has 60.5 percent of original size [2021-03-26 05:19:30,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 05:19:30,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:30,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 05:19:30,250 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-03-26 05:19:30,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:19:30,256 INFO L142 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-03-26 05:19:30,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:19:30,262 INFO L142 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-03-26 05:19:30,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:19:30,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:30,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:19:30,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:30,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 05:19:30,278 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-26 05:19:30,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:19:30,290 INFO L142 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size [2021-03-26 05:19:30,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:19:30,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:30,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:19:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:19:30,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211338269] [2021-03-26 05:19:30,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:19:30,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:19:30,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128165348] [2021-03-26 05:19:30,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:19:30,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:19:30,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:19:30,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:19:30,292 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 198 [2021-03-26 05:19:30,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 788 transitions, 19750 flow. Second operand has 9 states, 9 states have (on average 49.111111111111114) internal successors, (442), 9 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:30,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:19:30,292 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 198 [2021-03-26 05:19:30,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:19:34,231 INFO L129 PetriNetUnfolder]: 4057/11513 cut-off events. [2021-03-26 05:19:34,232 INFO L130 PetriNetUnfolder]: For 445971/448701 co-relation queries the response was YES. [2021-03-26 05:19:34,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109974 conditions, 11513 events. 4057/11513 cut-off events. For 445971/448701 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 129131 event pairs, 1112 based on Foata normal form. 395/11525 useless extension candidates. Maximal degree in co-relation 109402. Up to 6860 conditions per place. [2021-03-26 05:19:34,380 INFO L132 encePairwiseOnDemand]: 179/198 looper letters, 680 selfloop transitions, 30 changer transitions 58/828 dead transitions. [2021-03-26 05:19:34,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 828 transitions, 22130 flow [2021-03-26 05:19:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:19:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:19:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 527 transitions. [2021-03-26 05:19:34,381 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2957351290684624 [2021-03-26 05:19:34,381 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 527 transitions. [2021-03-26 05:19:34,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 527 transitions. [2021-03-26 05:19:34,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:19:34,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 527 transitions. [2021-03-26 05:19:34,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 58.55555555555556) internal successors, (527), 9 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:34,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:34,383 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:34,383 INFO L185 Difference]: Start difference. First operand has 344 places, 788 transitions, 19750 flow. Second operand 9 states and 527 transitions. [2021-03-26 05:19:34,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 828 transitions, 22130 flow [2021-03-26 05:19:36,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 828 transitions, 21810 flow, removed 160 selfloop flow, removed 0 redundant places. [2021-03-26 05:19:36,551 INFO L241 Difference]: Finished difference. Result has 355 places, 751 transitions, 18558 flow [2021-03-26 05:19:36,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=19454, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=787, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=757, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=18558, PETRI_PLACES=355, PETRI_TRANSITIONS=751} [2021-03-26 05:19:36,552 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 307 predicate places. [2021-03-26 05:19:36,552 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:19:36,552 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 355 places, 751 transitions, 18558 flow [2021-03-26 05:19:36,553 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 355 places, 751 transitions, 18558 flow [2021-03-26 05:19:36,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 355 places, 751 transitions, 18558 flow [2021-03-26 05:19:38,534 INFO L129 PetriNetUnfolder]: 3182/10209 cut-off events. [2021-03-26 05:19:38,534 INFO L130 PetriNetUnfolder]: For 350494/351949 co-relation queries the response was YES. [2021-03-26 05:19:38,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89435 conditions, 10209 events. 3182/10209 cut-off events. For 350494/351949 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 119993 event pairs, 676 based on Foata normal form. 394/10154 useless extension candidates. Maximal degree in co-relation 89055. Up to 2022 conditions per place. [2021-03-26 05:19:38,851 INFO L142 LiptonReduction]: Number of co-enabled transitions 4652 [2021-03-26 05:19:50,516 INFO L154 LiptonReduction]: Checked pairs total: 197 [2021-03-26 05:19:50,517 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:19:50,517 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13965 [2021-03-26 05:19:50,519 INFO L480 AbstractCegarLoop]: Abstraction has has 355 places, 751 transitions, 18560 flow [2021-03-26 05:19:50,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.111111111111114) internal successors, (442), 9 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:50,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:19:50,519 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:19:50,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-26 05:19:50,519 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:19:50,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:19:50,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1837082825, now seen corresponding path program 2 times [2021-03-26 05:19:50,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:19:50,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517770222] [2021-03-26 05:19:50,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:19:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:19:50,539 INFO L142 QuantifierPusher]: treesize reduction 25, result has 44.4 percent of original size [2021-03-26 05:19:50,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 05:19:50,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:50,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:19:50,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:50,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:19:50,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:50,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:19:50,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:50,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:19:50,574 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-03-26 05:19:50,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:19:50,581 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:19:50,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:19:50,588 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:19:50,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:19:50,596 INFO L142 QuantifierPusher]: treesize reduction 12, result has 47.8 percent of original size [2021-03-26 05:19:50,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 05:19:50,601 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-03-26 05:19:50,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:19:50,613 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-03-26 05:19:50,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:19:50,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:19:50,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:19:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:19:50,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517770222] [2021-03-26 05:19:50,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:19:50,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-26 05:19:50,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241543110] [2021-03-26 05:19:50,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 05:19:50,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:19:50,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 05:19:50,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-26 05:19:50,624 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 199 [2021-03-26 05:19:50,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 751 transitions, 18560 flow. Second operand has 11 states, 11 states have (on average 48.72727272727273) internal successors, (536), 11 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:50,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:19:50,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 199 [2021-03-26 05:19:50,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:19:54,061 INFO L129 PetriNetUnfolder]: 3224/9004 cut-off events. [2021-03-26 05:19:54,061 INFO L130 PetriNetUnfolder]: For 361289/363768 co-relation queries the response was YES. [2021-03-26 05:19:54,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87220 conditions, 9004 events. 3224/9004 cut-off events. For 361289/363768 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 96215 event pairs, 585 based on Foata normal form. 961/9619 useless extension candidates. Maximal degree in co-relation 86824. Up to 2389 conditions per place. [2021-03-26 05:19:54,181 INFO L132 encePairwiseOnDemand]: 163/199 looper letters, 447 selfloop transitions, 321 changer transitions 108/928 dead transitions. [2021-03-26 05:19:54,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 928 transitions, 24224 flow [2021-03-26 05:19:54,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-26 05:19:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-26 05:19:54,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1122 transitions. [2021-03-26 05:19:54,183 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29674689235651946 [2021-03-26 05:19:54,183 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1122 transitions. [2021-03-26 05:19:54,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1122 transitions. [2021-03-26 05:19:54,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:19:54,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1122 transitions. [2021-03-26 05:19:54,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 59.05263157894737) internal successors, (1122), 19 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:54,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 199.0) internal successors, (3980), 20 states have internal predecessors, (3980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:54,186 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 199.0) internal successors, (3980), 20 states have internal predecessors, (3980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:19:54,186 INFO L185 Difference]: Start difference. First operand has 355 places, 751 transitions, 18560 flow. Second operand 19 states and 1122 transitions. [2021-03-26 05:19:54,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 928 transitions, 24224 flow [2021-03-26 05:19:55,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 928 transitions, 23744 flow, removed 78 selfloop flow, removed 13 redundant places. [2021-03-26 05:19:55,977 INFO L241 Difference]: Finished difference. Result has 371 places, 672 transitions, 17459 flow [2021-03-26 05:19:55,978 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=16558, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=17459, PETRI_PLACES=371, PETRI_TRANSITIONS=672} [2021-03-26 05:19:55,978 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 323 predicate places. [2021-03-26 05:19:55,978 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:19:55,978 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 371 places, 672 transitions, 17459 flow [2021-03-26 05:19:55,978 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 371 places, 672 transitions, 17459 flow [2021-03-26 05:19:55,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 363 places, 672 transitions, 17459 flow [2021-03-26 05:19:57,415 INFO L129 PetriNetUnfolder]: 2603/7815 cut-off events. [2021-03-26 05:19:57,415 INFO L130 PetriNetUnfolder]: For 311507/313764 co-relation queries the response was YES. [2021-03-26 05:19:57,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73125 conditions, 7815 events. 2603/7815 cut-off events. For 311507/313764 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 85066 event pairs, 565 based on Foata normal form. 453/7848 useless extension candidates. Maximal degree in co-relation 72921. Up to 1565 conditions per place. [2021-03-26 05:19:57,609 INFO L142 LiptonReduction]: Number of co-enabled transitions 3736 [2021-03-26 05:19:58,156 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-03-26 05:20:05,615 INFO L154 LiptonReduction]: Checked pairs total: 2969 [2021-03-26 05:20:05,615 INFO L156 LiptonReduction]: Total number of compositions: 27 [2021-03-26 05:20:05,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9637 [2021-03-26 05:20:05,617 INFO L480 AbstractCegarLoop]: Abstraction has has 363 places, 672 transitions, 17513 flow [2021-03-26 05:20:05,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 48.72727272727273) internal successors, (536), 11 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:05,617 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:20:05,617 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:20:05,617 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-26 05:20:05,617 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:20:05,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:20:05,618 INFO L82 PathProgramCache]: Analyzing trace with hash -898930317, now seen corresponding path program 1 times [2021-03-26 05:20:05,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:20:05,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128637888] [2021-03-26 05:20:05,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:20:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:20:05,645 INFO L142 QuantifierPusher]: treesize reduction 25, result has 44.4 percent of original size [2021-03-26 05:20:05,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 05:20:05,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:05,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:20:05,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:05,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:20:05,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:05,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:20:05,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:05,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:20:05,681 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-03-26 05:20:05,681 INFO L147 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size 14 [2021-03-26 05:20:05,693 INFO L142 QuantifierPusher]: treesize reduction 16, result has 50.0 percent of original size [2021-03-26 05:20:05,693 INFO L147 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size 12 [2021-03-26 05:20:05,705 INFO L142 QuantifierPusher]: treesize reduction 16, result has 44.8 percent of original size [2021-03-26 05:20:05,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:20:05,714 INFO L142 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-03-26 05:20:05,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 05:20:05,722 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-26 05:20:05,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:20:05,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:05,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:20:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:20:05,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128637888] [2021-03-26 05:20:05,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:20:05,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-26 05:20:05,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162420988] [2021-03-26 05:20:05,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 05:20:05,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:20:05,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 05:20:05,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-26 05:20:05,733 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 226 [2021-03-26 05:20:05,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 672 transitions, 17513 flow. Second operand has 11 states, 11 states have (on average 48.72727272727273) internal successors, (536), 11 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:05,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:20:05,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 226 [2021-03-26 05:20:05,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:20:09,241 INFO L129 PetriNetUnfolder]: 3328/9450 cut-off events. [2021-03-26 05:20:09,241 INFO L130 PetriNetUnfolder]: For 402845/404902 co-relation queries the response was YES. [2021-03-26 05:20:09,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94635 conditions, 9450 events. 3328/9450 cut-off events. For 402845/404902 co-relation queries the response was YES. Maximal size of possible extension queue 674. Compared 103248 event pairs, 790 based on Foata normal form. 787/9941 useless extension candidates. Maximal degree in co-relation 94388. Up to 4288 conditions per place. [2021-03-26 05:20:09,372 INFO L132 encePairwiseOnDemand]: 203/226 looper letters, 590 selfloop transitions, 160 changer transitions 38/840 dead transitions. [2021-03-26 05:20:09,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 840 transitions, 23463 flow [2021-03-26 05:20:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 05:20:09,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 05:20:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 878 transitions. [2021-03-26 05:20:09,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25899705014749264 [2021-03-26 05:20:09,374 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 878 transitions. [2021-03-26 05:20:09,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 878 transitions. [2021-03-26 05:20:09,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:20:09,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 878 transitions. [2021-03-26 05:20:09,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 58.53333333333333) internal successors, (878), 15 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:09,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 226.0) internal successors, (3616), 16 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:09,377 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 226.0) internal successors, (3616), 16 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:09,377 INFO L185 Difference]: Start difference. First operand has 363 places, 672 transitions, 17513 flow. Second operand 15 states and 878 transitions. [2021-03-26 05:20:09,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 840 transitions, 23463 flow [2021-03-26 05:20:11,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 840 transitions, 22992 flow, removed 199 selfloop flow, removed 12 redundant places. [2021-03-26 05:20:11,508 INFO L241 Difference]: Finished difference. Result has 372 places, 705 transitions, 18593 flow [2021-03-26 05:20:11,508 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=16827, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18593, PETRI_PLACES=372, PETRI_TRANSITIONS=705} [2021-03-26 05:20:11,508 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 324 predicate places. [2021-03-26 05:20:11,508 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:20:11,508 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 372 places, 705 transitions, 18593 flow [2021-03-26 05:20:11,508 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 372 places, 705 transitions, 18593 flow [2021-03-26 05:20:11,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 371 places, 705 transitions, 18593 flow [2021-03-26 05:20:12,346 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([149] L34-->thread1EXIT: Formula: (= v_n1_20 0) InVars {} OutVars{n1=v_n1_20} AuxVars[] AssignedVars[n1][532], [3330#(and (<= 1 n3) (<= (+ n3 1) n2)), 10#thread1EXITtrue, Black: 4611#(and (<= (+ n2 1) n1) (<= n2 n3) (<= 1 n2)), Black: 4613#(and (<= (+ n2 1) n1) (<= 0 n3) (<= 0 n2)), Black: 3328#(<= 1 n3), Black: 4615#(and (<= 1 n3) (<= n2 n1) (<= 1 n2)), Black: 3329#(and (<= 1 n3) (<= n3 n2)), Black: 4589#(and (<= 1 n1) (<= 0 n3) (= n2 n1)), Black: 4590#(and (<= 0 n3) (<= 0 n2)), Black: 3332#(and (<= n1 n3) (<= 1 n3) (<= n2 n3)), Black: 3334#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n3)), Black: 3336#(and (<= 1 n3) (<= n2 n3)), Black: 4593#(and (<= n2 n3) (<= 1 n2)), Black: 3088#(and (<= (+ n2 1) n1) (<= n3 n2) (<= 0 n2)), Black: 3338#(and (<= 1 n3) (<= n3 n2) (<= n2 n3)), Black: 4597#(and (<= (+ n2 1) n1) (<= n2 n3) (<= 0 n2)), 3603#(and (<= 1 i) (<= i 1)), Black: 3325#(and (<= n1 n3) (<= 0 n3) (<= n2 n3)), Black: 3074#(and (<= n1 n2) (<= n3 n2) (< n2 (+ n1 1)) (<= 1 n2)), Black: 4599#(and (<= 0 n3) (<= n2 n1) (<= 1 n2)), 276#true, Black: 3078#(and (<= n3 n2) (< n2 (+ n1 1)) (<= 1 n2)), Black: 4601#(and (<= n2 n3) (<= n2 n1) (<= 0 n2)), Black: 4605#(and (<= n2 n3) (<= n2 n1) (<= 1 n2)), Black: 4607#(and (<= 0 n3) (<= n2 n1) (<= 0 n2)), Black: 3066#(and (<= n3 n2) (<= n2 n1) (<= 0 n2)), Black: 3082#(and (<= (+ n2 1) n1) (<= 1 n2)), 1560#(and (<= 0 n1) (<= 0 n3) (<= 1 n2)), Black: 3067#(and (<= n2 n1) (<= 0 n2)), Black: 3068#(and (<= (+ n2 1) n1) (<= 0 n2)), Black: 3069#(and (< n2 (+ n1 1)) (<= 1 n2)), Black: 3070#(and (<= n1 n2) (< n2 (+ n1 1)) (<= 1 n2)), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), 32#L77true, Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 1568#(and (<= (+ n2 1) n1) (<= 0 n3) (<= 1 n2)), Black: 1540#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 3611#(and (<= 2 i) (<= i 2) (<= 1 i3) (<= i3 1)), 548#(and (<= 0 n1) (<= 0 n3)), Black: 1546#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), Black: 1548#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), Black: 1550#(and (<= 0 n3) (<= n3 n1) (<= 1 n2)), 38#L64true, Black: 1552#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 1554#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 1556#(and (<= 1 n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1558#(and (<= 0 n3) (<= n3 n1) (<= 0 n2)), Black: 1562#(and (<= (+ n2 1) n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1564#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), 48#L45true, 1333#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 67#true, Black: 1345#(and (<= 1 n1) (<= n2 n3) (<= 1 n2)), Black: 325#e2, Black: 1331#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), 4937#true, Black: 1332#(and (<= 0 n1) (<= n2 n3) (<= 0 n2)), Black: 1334#(and (<= 1 n1) (<= 0 n3) (<= 0 n2)), Black: 1339#(and (<= 1 n1) (<= n2 n3) (<= 0 n2)), Black: 1341#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), 1103#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 1343#(and (< n2 n1) (<= 0 n3) (<= 1 n2)), Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), 3931#(and (<= 1 n3) (<= 1 n2)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 348#e3, Black: 4947#(and (not (= n1 0)) (<= (+ n1 1) n2)), Black: 4949#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n3)), Black: 1093#(and (<= i 0) (<= 0 i)), 352#true, Black: 4955#(and (<= 1 n1) (<= (+ n2 1) n1) (<= 0 n3) (<= n2 n3)), Black: 4941#(and (<= 0 n1) (<= n2 n1)), Black: 1095#(and (<= 1 i) (<= i 1)), Black: 4957#(and (<= n1 n2) (not (= n1 0)) (<= 0 n1) (<= n2 n1)), Black: 4942#(and (<= 1 n1) (<= (+ n2 1) n1)), Black: 4943#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 3928#(and (<= n2 n3) (<= 0 n2)), Black: 3929#(and (<= 0 n3) (<= 0 n2)), Black: 3934#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 3950#(and (<= 2 i) (<= i 2)), 3964#(and (<= 1 i) (<= i 1)), 3712#(and (<= n1 n3) (<= 1 n3) (<= n3 n2)), 385#true, Black: 3697#(and (<= 1 n3) (<= 1 n2)), Black: 3698#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 2434#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), Black: 3700#(and (<= n3 n2) (<= 0 n3)), Black: 3702#(and (<= n1 n3) (<= n3 n2) (<= 0 n3) (<= n3 n1)), Black: 2430#(and (<= 0 n3) (<= n2 n1) (<= 1 n2)), Black: 3704#(and (<= n1 n2) (<= n3 n2) (<= 0 n3)), Black: 3706#(and (<= n1 n3) (<= n3 n2) (<= 0 n3)), Black: 3708#(and (<= 1 n3) (<= n3 n2)), Black: 3710#(and (<= n1 n2) (<= 1 n3) (<= n3 n2)), Black: 3695#(and (<= 0 n3) (<= 0 n2)), 659#(and (<= n1 n3) (<= 0 n1)), Black: 3972#(and (<= i2 0) (<= 1 i) (<= 0 i2) (<= i 1)), Black: 3962#(and (<= i 0) (<= 0 i)), Black: 3980#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 657#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 658#(and (<= n1 n3) (<= 0 n1) (<= n2 n3)), Black: 389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), Black: 660#(and (<= n1 (+ n3 1)) (<= 1 n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 661#(and (<= n1 n3) (<= 1 n1)), Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 663#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), 4266#true, Black: 690#e1, Black: 4272#(and (= n3 n2) (<= 1 n2)), Black: 4273#(and (<= (+ n2 1) n3) (<= 1 n2)), Black: 4276#(and (<= n1 n3) (<= 0 n3) (<= n3 0) (<= 0 n2)), Black: 4278#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), Black: 4280#(and (<= n1 n3) (<= 0 n3) (<= n3 0) (<= 1 n2)), Black: 4282#(and (<= 0 n3) (<= n3 0) (<= 1 n2)), Black: 4268#(and (<= n1 n3) (<= 0 n3) (<= n3 0)), Black: 4269#(and (<= 0 n3) (<= n3 0)), 963#true, Black: 967#(and (<= n2 n3) (<= 0 n2)), 1995#true, Black: 968#(and (<= n2 (+ n3 1)) (<= 1 n2)), Black: 969#(and (<= n2 n3) (<= 1 n2)), 1230#true, Black: 2000#(and (<= n1 n2) (<= 0 n1) (or (and (<= 0 n3) (<= n3 n1)) (= n3 n2))), Black: 2003#(and (<= 1 n1) (or (<= n1 n2) (and (<= (+ n3 1) n1) (<= 0 n3) (<= 1 n2)))), Black: 1234#(and (or (and (<= n3 n2) (<= n3 n1)) (<= (+ n3 1) n1)) (<= 0 n3)), Black: 1250#(and (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 1235#(and (<= 0 n3) (or (<= (+ n3 2) n1) (and (<= (+ n3 1) n1) (<= n3 n2)))), Black: 1252#(and (<= (+ n3 1) n1) (<= 0 n3) (not (= n3 0))), Black: 1998#(and (<= n1 n2) (<= 0 n3) (<= n2 n1) (<= n3 n1)), 4591#(and (<= 0 n3) (<= 1 n2)), Black: 1246#(and (or (<= (+ n3 2) n1) (and (<= n3 n2) (or (<= (+ n2 1) n1) (<= (+ n3 1) n2)))) (<= 0 n3) (<= n3 n1)), 3062#true]) [2021-03-26 05:20:12,346 INFO L384 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2021-03-26 05:20:12,346 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-03-26 05:20:12,346 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-03-26 05:20:12,346 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-03-26 05:20:12,361 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([149] L34-->thread1EXIT: Formula: (= v_n1_20 0) InVars {} OutVars{n1=v_n1_20} AuxVars[] AssignedVars[n1][618], [3330#(and (<= 1 n3) (<= (+ n3 1) n2)), 10#thread1EXITtrue, Black: 4611#(and (<= (+ n2 1) n1) (<= n2 n3) (<= 1 n2)), Black: 4613#(and (<= (+ n2 1) n1) (<= 0 n3) (<= 0 n2)), Black: 3328#(<= 1 n3), Black: 4615#(and (<= 1 n3) (<= n2 n1) (<= 1 n2)), Black: 3329#(and (<= 1 n3) (<= n3 n2)), Black: 4589#(and (<= 1 n1) (<= 0 n3) (= n2 n1)), Black: 4590#(and (<= 0 n3) (<= 0 n2)), Black: 3332#(and (<= n1 n3) (<= 1 n3) (<= n2 n3)), Black: 3334#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n3)), Black: 3336#(and (<= 1 n3) (<= n2 n3)), Black: 4593#(and (<= n2 n3) (<= 1 n2)), Black: 3088#(and (<= (+ n2 1) n1) (<= n3 n2) (<= 0 n2)), Black: 3338#(and (<= 1 n3) (<= n3 n2) (<= n2 n3)), Black: 4597#(and (<= (+ n2 1) n1) (<= n2 n3) (<= 0 n2)), Black: 3074#(and (<= n1 n2) (<= n3 n2) (< n2 (+ n1 1)) (<= 1 n2)), Black: 3325#(and (<= n1 n3) (<= 0 n3) (<= n2 n3)), 3603#(and (<= 1 i) (<= i 1)), 276#true, Black: 4599#(and (<= 0 n3) (<= n2 n1) (<= 1 n2)), Black: 4601#(and (<= n2 n3) (<= n2 n1) (<= 0 n2)), Black: 3078#(and (<= n3 n2) (< n2 (+ n1 1)) (<= 1 n2)), Black: 4605#(and (<= n2 n3) (<= n2 n1) (<= 1 n2)), Black: 4607#(and (<= 0 n3) (<= n2 n1) (<= 0 n2)), Black: 3066#(and (<= n3 n2) (<= n2 n1) (<= 0 n2)), Black: 3082#(and (<= (+ n2 1) n1) (<= 1 n2)), 1560#(and (<= 0 n1) (<= 0 n3) (<= 1 n2)), Black: 3067#(and (<= n2 n1) (<= 0 n2)), Black: 3068#(and (<= (+ n2 1) n1) (<= 0 n2)), Black: 3069#(and (< n2 (+ n1 1)) (<= 1 n2)), Black: 3070#(and (<= n1 n2) (< n2 (+ n1 1)) (<= 1 n2)), Black: 279#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 280#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), 32#L77true, Black: 282#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 1568#(and (<= (+ n2 1) n1) (<= 0 n3) (<= 1 n2)), Black: 1540#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), 548#(and (<= 0 n1) (<= 0 n3)), Black: 3611#(and (<= 2 i) (<= i 2) (<= 1 i3) (<= i3 1)), Black: 1546#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), Black: 1548#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 0 n2)), Black: 1550#(and (<= 0 n3) (<= n3 n1) (<= 1 n2)), 38#L64true, Black: 1552#(and (<= 0 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 1554#(and (<= n1 n3) (<= n2 n1) (<= n3 n1) (<= 1 n2)), Black: 1556#(and (<= 1 n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1558#(and (<= 0 n3) (<= n3 n1) (<= 0 n2)), Black: 1562#(and (<= (+ n2 1) n1) (<= 0 n3) (<= n3 n1) (<= 1 n2)), Black: 1564#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), 48#L45true, 1333#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 561#(and (<= 1 n1) (<= 0 n3)), Black: 563#(and (<= n1 n3) (<= 1 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 565#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 567#(and (<= 1 n3) (<= 1 n1)), Black: 557#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 559#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), 67#true, Black: 1345#(and (<= 1 n1) (<= n2 n3) (<= 1 n2)), Black: 325#e2, Black: 1331#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), 4937#true, Black: 1332#(and (<= 0 n1) (<= n2 n3) (<= 0 n2)), Black: 1334#(and (<= 1 n1) (<= 0 n3) (<= 0 n2)), Black: 1339#(and (<= 1 n1) (<= n2 n3) (<= 0 n2)), Black: 1341#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), 1103#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 1343#(and (< n2 n1) (<= 0 n3) (<= 1 n2)), Black: 83#(and (<= i3 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i3) (<= 1 i1)), 3931#(and (<= 1 n3) (<= 1 n2)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 348#e3, Black: 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 4947#(and (not (= n1 0)) (<= (+ n1 1) n2)), Black: 4949#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n3)), 352#true, Black: 1093#(and (<= i 0) (<= 0 i)), Black: 4955#(and (<= 1 n1) (<= (+ n2 1) n1) (<= 0 n3) (<= n2 n3)), Black: 4941#(and (<= 0 n1) (<= n2 n1)), Black: 1095#(and (<= 1 i) (<= i 1)), Black: 4957#(and (<= n1 n2) (not (= n1 0)) (<= 0 n1) (<= n2 n1)), Black: 4942#(and (<= 1 n1) (<= (+ n2 1) n1)), Black: 4943#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 3928#(and (<= n2 n3) (<= 0 n2)), Black: 3929#(and (<= 0 n3) (<= 0 n2)), Black: 3934#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), Black: 356#(and (<= n3 n2) (<= 0 n3)), Black: 357#(and (<= 0 n3) (<= (+ n3 1) n2)), Black: 358#(and (<= 1 n3) (< n3 (+ n2 1))), Black: 359#(and (<= 1 n3) (< n3 (+ n2 1)) (<= n2 n3)), Black: 361#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (<= n3 n1)), Black: 363#(and (<= n1 n3) (<= 1 n3) (<= n3 n2) (<= n2 n1)), Black: 3950#(and (<= 2 i) (<= i 2)), 3964#(and (<= 1 i) (<= i 1)), 3712#(and (<= n1 n3) (<= 1 n3) (<= n3 n2)), 385#true, Black: 3697#(and (<= 1 n3) (<= 1 n2)), Black: 3698#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 2434#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), Black: 3700#(and (<= n3 n2) (<= 0 n3)), Black: 3702#(and (<= n1 n3) (<= n3 n2) (<= 0 n3) (<= n3 n1)), Black: 2430#(and (<= 0 n3) (<= n2 n1) (<= 1 n2)), Black: 3704#(and (<= n1 n2) (<= n3 n2) (<= 0 n3)), Black: 3706#(and (<= n1 n3) (<= n3 n2) (<= 0 n3)), Black: 3708#(and (<= 1 n3) (<= n3 n2)), Black: 3710#(and (<= n1 n2) (<= 1 n3) (<= n3 n2)), Black: 3695#(and (<= 0 n3) (<= 0 n2)), 659#(and (<= n1 n3) (<= 0 n1)), Black: 3972#(and (<= i2 0) (<= 1 i) (<= 0 i2) (<= i 1)), Black: 3962#(and (<= i 0) (<= 0 i)), Black: 3980#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 657#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 388#(and (<= n1 n3) (<= 0 n3) (<= n3 n1)), Black: 658#(and (<= n1 n3) (<= 0 n1) (<= n2 n3)), Black: 389#(and (or (and (<= n1 n3) (<= n3 n1)) (<= 1 n2)) (<= 0 n1)), Black: 660#(and (<= n1 (+ n3 1)) (<= 1 n1)), Black: 661#(and (<= n1 n3) (<= 1 n1)), Black: 392#(and (< n2 n1) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 663#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 393#(and (or (<= 2 n2) (and (<= n1 n3) (< n3 (+ n1 1)))) (< n2 n1) (< 0 n1)), Black: 396#(and (<= 1 n2) (< 0 n1) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 404#(and (< n2 n1) (<= 1 n2) (or (and (<= n1 (+ n3 1)) (<= (+ n3 1) n1)) (<= 2 n2))), Black: 406#(and (<= n1 n3) (<= n3 n1) (<= 2 n2) (< 0 n1)), 4266#true, Black: 690#e1, Black: 4272#(and (= n3 n2) (<= 1 n2)), Black: 4273#(and (<= (+ n2 1) n3) (<= 1 n2)), Black: 4276#(and (<= n1 n3) (<= 0 n3) (<= n3 0) (<= 0 n2)), Black: 4278#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), Black: 4280#(and (<= n1 n3) (<= 0 n3) (<= n3 0) (<= 1 n2)), Black: 4282#(and (<= 0 n3) (<= n3 0) (<= 1 n2)), Black: 4268#(and (<= n1 n3) (<= 0 n3) (<= n3 0)), 963#true, Black: 4269#(and (<= 0 n3) (<= n3 0)), Black: 967#(and (<= n2 n3) (<= 0 n2)), 1995#true, Black: 968#(and (<= n2 (+ n3 1)) (<= 1 n2)), Black: 969#(and (<= n2 n3) (<= 1 n2)), 1230#true, Black: 2000#(and (<= n1 n2) (<= 0 n1) (or (and (<= 0 n3) (<= n3 n1)) (= n3 n2))), Black: 2003#(and (<= 1 n1) (or (<= n1 n2) (and (<= (+ n3 1) n1) (<= 0 n3) (<= 1 n2)))), Black: 1234#(and (or (and (<= n3 n2) (<= n3 n1)) (<= (+ n3 1) n1)) (<= 0 n3)), Black: 1250#(and (<= 1 n3) (<= n3 n1) (or (<= (+ n3 1) n1) (<= (+ n3 1) n2))), Black: 1235#(and (<= 0 n3) (or (<= (+ n3 2) n1) (and (<= (+ n3 1) n1) (<= n3 n2)))), Black: 1252#(and (<= (+ n3 1) n1) (<= 0 n3) (not (= n3 0))), Black: 1998#(and (<= n1 n2) (<= 0 n3) (<= n2 n1) (<= n3 n1)), 4591#(and (<= 0 n3) (<= 1 n2)), Black: 1246#(and (or (<= (+ n3 2) n1) (and (<= n3 n2) (or (<= (+ n2 1) n1) (<= (+ n3 1) n2)))) (<= 0 n3) (<= n3 n1)), 3062#true]) [2021-03-26 05:20:12,361 INFO L384 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2021-03-26 05:20:12,361 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-03-26 05:20:12,361 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-03-26 05:20:12,361 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-03-26 05:20:13,373 INFO L129 PetriNetUnfolder]: 2837/8674 cut-off events. [2021-03-26 05:20:13,373 INFO L130 PetriNetUnfolder]: For 343260/344979 co-relation queries the response was YES. [2021-03-26 05:20:13,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81194 conditions, 8674 events. 2837/8674 cut-off events. For 343260/344979 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 97531 event pairs, 616 based on Foata normal form. 425/8675 useless extension candidates. Maximal degree in co-relation 80802. Up to 1697 conditions per place. [2021-03-26 05:20:13,571 INFO L142 LiptonReduction]: Number of co-enabled transitions 3918 [2021-03-26 05:20:20,114 INFO L154 LiptonReduction]: Checked pairs total: 1708 [2021-03-26 05:20:20,115 INFO L156 LiptonReduction]: Total number of compositions: 14 [2021-03-26 05:20:20,115 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8607 [2021-03-26 05:20:20,117 INFO L480 AbstractCegarLoop]: Abstraction has has 371 places, 705 transitions, 18621 flow [2021-03-26 05:20:20,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 48.72727272727273) internal successors, (536), 11 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:20,117 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:20:20,117 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:20:20,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-26 05:20:20,117 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:20:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:20:20,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1276049321, now seen corresponding path program 1 times [2021-03-26 05:20:20,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:20:20,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032808846] [2021-03-26 05:20:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:20:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:20:20,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:20,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:20:20,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:20,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:20:20,165 INFO L142 QuantifierPusher]: treesize reduction 17, result has 60.5 percent of original size [2021-03-26 05:20:20,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 05:20:20,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:20,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 05:20:20,175 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-03-26 05:20:20,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:20:20,184 INFO L142 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-03-26 05:20:20,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:20:20,193 INFO L142 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-03-26 05:20:20,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:20:20,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:20,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:20:20,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:20,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 05:20:20,214 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-26 05:20:20,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:20:20,226 INFO L142 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size [2021-03-26 05:20:20,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:20:20,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:20,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:20:20,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:20:20,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032808846] [2021-03-26 05:20:20,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:20:20,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:20:20,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371420510] [2021-03-26 05:20:20,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:20:20,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:20:20,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:20:20,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:20:20,228 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 240 [2021-03-26 05:20:20,228 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 705 transitions, 18621 flow. Second operand has 9 states, 9 states have (on average 49.111111111111114) internal successors, (442), 9 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:20,228 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:20:20,228 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 240 [2021-03-26 05:20:20,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:20:23,537 INFO L129 PetriNetUnfolder]: 3252/9153 cut-off events. [2021-03-26 05:20:23,537 INFO L130 PetriNetUnfolder]: For 397009/399351 co-relation queries the response was YES. [2021-03-26 05:20:23,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92535 conditions, 9153 events. 3252/9153 cut-off events. For 397009/399351 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 99328 event pairs, 921 based on Foata normal form. 357/9217 useless extension candidates. Maximal degree in co-relation 92144. Up to 5606 conditions per place. [2021-03-26 05:20:23,662 INFO L132 encePairwiseOnDemand]: 225/240 looper letters, 615 selfloop transitions, 16 changer transitions 44/727 dead transitions. [2021-03-26 05:20:23,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 727 transitions, 20416 flow [2021-03-26 05:20:23,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:20:23,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:20:23,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 544 transitions. [2021-03-26 05:20:23,663 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2518518518518518 [2021-03-26 05:20:23,663 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 544 transitions. [2021-03-26 05:20:23,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 544 transitions. [2021-03-26 05:20:23,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:20:23,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 544 transitions. [2021-03-26 05:20:23,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 60.44444444444444) internal successors, (544), 9 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:23,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:23,665 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:23,665 INFO L185 Difference]: Start difference. First operand has 371 places, 705 transitions, 18621 flow. Second operand 9 states and 544 transitions. [2021-03-26 05:20:23,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 727 transitions, 20416 flow [2021-03-26 05:20:25,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 727 transitions, 19998 flow, removed 152 selfloop flow, removed 8 redundant places. [2021-03-26 05:20:25,655 INFO L241 Difference]: Finished difference. Result has 374 places, 672 transitions, 17404 flow [2021-03-26 05:20:25,656 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=18079, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=17404, PETRI_PLACES=374, PETRI_TRANSITIONS=672} [2021-03-26 05:20:25,656 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 326 predicate places. [2021-03-26 05:20:25,656 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:20:25,656 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 672 transitions, 17404 flow [2021-03-26 05:20:25,656 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 672 transitions, 17404 flow [2021-03-26 05:20:25,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 361 places, 672 transitions, 17404 flow [2021-03-26 05:20:27,340 INFO L129 PetriNetUnfolder]: 2747/8525 cut-off events. [2021-03-26 05:20:27,340 INFO L130 PetriNetUnfolder]: For 324501/325934 co-relation queries the response was YES. [2021-03-26 05:20:27,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78503 conditions, 8525 events. 2747/8525 cut-off events. For 324501/325934 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 96336 event pairs, 596 based on Foata normal form. 425/8563 useless extension candidates. Maximal degree in co-relation 78113. Up to 1680 conditions per place. [2021-03-26 05:20:27,547 INFO L142 LiptonReduction]: Number of co-enabled transitions 3810 [2021-03-26 05:20:32,585 INFO L154 LiptonReduction]: Checked pairs total: 697 [2021-03-26 05:20:32,585 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 05:20:32,585 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6929 [2021-03-26 05:20:32,587 INFO L480 AbstractCegarLoop]: Abstraction has has 361 places, 672 transitions, 17456 flow [2021-03-26 05:20:32,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.111111111111114) internal successors, (442), 9 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:32,587 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:20:32,587 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:20:32,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-26 05:20:32,588 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:20:32,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:20:32,588 INFO L82 PathProgramCache]: Analyzing trace with hash 185632179, now seen corresponding path program 1 times [2021-03-26 05:20:32,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:20:32,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000793652] [2021-03-26 05:20:32,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:20:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:20:32,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:32,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:20:32,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:32,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 05:20:32,607 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-26 05:20:32,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 05:20:32,610 INFO L142 QuantifierPusher]: treesize reduction 16, result has 30.4 percent of original size [2021-03-26 05:20:32,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:20:32,614 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 05:20:32,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:20:32,619 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-26 05:20:32,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:20:32,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:32,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:20:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:20:32,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000793652] [2021-03-26 05:20:32,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:20:32,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:20:32,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403760611] [2021-03-26 05:20:32,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:20:32,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:20:32,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:20:32,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:20:32,712 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 247 [2021-03-26 05:20:32,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 672 transitions, 17456 flow. Second operand has 7 states, 7 states have (on average 49.714285714285715) internal successors, (348), 7 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:32,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:20:32,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 247 [2021-03-26 05:20:32,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:20:35,952 INFO L129 PetriNetUnfolder]: 3358/9584 cut-off events. [2021-03-26 05:20:35,952 INFO L130 PetriNetUnfolder]: For 405057/407025 co-relation queries the response was YES. [2021-03-26 05:20:36,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94780 conditions, 9584 events. 3358/9584 cut-off events. For 405057/407025 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 105387 event pairs, 646 based on Foata normal form. 674/9964 useless extension candidates. Maximal degree in co-relation 94378. Up to 2334 conditions per place. [2021-03-26 05:20:36,096 INFO L132 encePairwiseOnDemand]: 221/247 looper letters, 533 selfloop transitions, 310 changer transitions 11/906 dead transitions. [2021-03-26 05:20:36,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 906 transitions, 25097 flow [2021-03-26 05:20:36,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 05:20:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 05:20:36,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 657 transitions. [2021-03-26 05:20:36,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2659919028340081 [2021-03-26 05:20:36,097 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 657 transitions. [2021-03-26 05:20:36,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 657 transitions. [2021-03-26 05:20:36,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:20:36,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 657 transitions. [2021-03-26 05:20:36,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 65.7) internal successors, (657), 10 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:36,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:36,100 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:36,100 INFO L185 Difference]: Start difference. First operand has 361 places, 672 transitions, 17456 flow. Second operand 10 states and 657 transitions. [2021-03-26 05:20:36,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 906 transitions, 25097 flow [2021-03-26 05:20:38,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 906 transitions, 24671 flow, removed 80 selfloop flow, removed 14 redundant places. [2021-03-26 05:20:38,476 INFO L241 Difference]: Finished difference. Result has 364 places, 790 transitions, 21915 flow [2021-03-26 05:20:38,476 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=17053, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=669, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=21915, PETRI_PLACES=364, PETRI_TRANSITIONS=790} [2021-03-26 05:20:38,477 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 316 predicate places. [2021-03-26 05:20:38,477 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:20:38,477 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 364 places, 790 transitions, 21915 flow [2021-03-26 05:20:38,477 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 364 places, 790 transitions, 21915 flow [2021-03-26 05:20:38,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 364 places, 790 transitions, 21915 flow [2021-03-26 05:20:40,263 INFO L129 PetriNetUnfolder]: 2827/8773 cut-off events. [2021-03-26 05:20:40,263 INFO L130 PetriNetUnfolder]: For 345810/347250 co-relation queries the response was YES. [2021-03-26 05:20:40,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81308 conditions, 8773 events. 2827/8773 cut-off events. For 345810/347250 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 99551 event pairs, 645 based on Foata normal form. 403/8746 useless extension candidates. Maximal degree in co-relation 80889. Up to 1699 conditions per place. [2021-03-26 05:20:40,560 INFO L142 LiptonReduction]: Number of co-enabled transitions 4040 [2021-03-26 05:20:46,345 INFO L154 LiptonReduction]: Checked pairs total: 1964 [2021-03-26 05:20:46,345 INFO L156 LiptonReduction]: Total number of compositions: 17 [2021-03-26 05:20:46,345 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7868 [2021-03-26 05:20:46,347 INFO L480 AbstractCegarLoop]: Abstraction has has 364 places, 790 transitions, 21949 flow [2021-03-26 05:20:46,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 49.714285714285715) internal successors, (348), 7 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:46,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:20:46,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:20:46,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-26 05:20:46,347 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:20:46,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:20:46,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1151843965, now seen corresponding path program 2 times [2021-03-26 05:20:46,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:20:46,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552867913] [2021-03-26 05:20:46,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:20:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:20:46,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:46,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:20:46,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:46,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:20:46,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:46,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:20:46,389 INFO L142 QuantifierPusher]: treesize reduction 24, result has 45.5 percent of original size [2021-03-26 05:20:46,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 05:20:46,393 INFO L142 QuantifierPusher]: treesize reduction 24, result has 45.5 percent of original size [2021-03-26 05:20:46,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 05:20:46,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:46,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:20:46,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:46,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:20:46,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:46,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:20:46,412 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-03-26 05:20:46,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:20:46,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:20:46,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:20:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:20:46,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552867913] [2021-03-26 05:20:46,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:20:46,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:20:46,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351271200] [2021-03-26 05:20:46,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:20:46,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:20:46,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:20:46,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:20:46,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 264 [2021-03-26 05:20:46,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 790 transitions, 21949 flow. Second operand has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:46,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:20:46,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 264 [2021-03-26 05:20:46,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:20:50,031 INFO L129 PetriNetUnfolder]: 3333/9860 cut-off events. [2021-03-26 05:20:50,031 INFO L130 PetriNetUnfolder]: For 428029/429872 co-relation queries the response was YES. [2021-03-26 05:20:50,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97274 conditions, 9860 events. 3333/9860 cut-off events. For 428029/429872 co-relation queries the response was YES. Maximal size of possible extension queue 641. Compared 110532 event pairs, 912 based on Foata normal form. 584/10140 useless extension candidates. Maximal degree in co-relation 96840. Up to 5213 conditions per place. [2021-03-26 05:20:50,160 INFO L132 encePairwiseOnDemand]: 249/264 looper letters, 656 selfloop transitions, 100 changer transitions 22/830 dead transitions. [2021-03-26 05:20:50,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 830 transitions, 24403 flow [2021-03-26 05:20:50,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 05:20:50,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 05:20:50,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2021-03-26 05:20:50,161 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.255050505050505 [2021-03-26 05:20:50,161 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 404 transitions. [2021-03-26 05:20:50,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 404 transitions. [2021-03-26 05:20:50,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:20:50,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 404 transitions. [2021-03-26 05:20:50,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:50,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:50,162 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:20:50,162 INFO L185 Difference]: Start difference. First operand has 364 places, 790 transitions, 21949 flow. Second operand 6 states and 404 transitions. [2021-03-26 05:20:50,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 830 transitions, 24403 flow [2021-03-26 05:20:52,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 830 transitions, 24314 flow, removed 44 selfloop flow, removed 2 redundant places. [2021-03-26 05:20:52,227 INFO L241 Difference]: Finished difference. Result has 367 places, 763 transitions, 21465 flow [2021-03-26 05:20:52,227 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=20914, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=21465, PETRI_PLACES=367, PETRI_TRANSITIONS=763} [2021-03-26 05:20:52,227 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 319 predicate places. [2021-03-26 05:20:52,227 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:20:52,227 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 367 places, 763 transitions, 21465 flow [2021-03-26 05:20:52,227 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 367 places, 763 transitions, 21465 flow [2021-03-26 05:20:52,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 367 places, 763 transitions, 21465 flow [2021-03-26 05:20:54,153 INFO L129 PetriNetUnfolder]: 2849/9091 cut-off events. [2021-03-26 05:20:54,153 INFO L130 PetriNetUnfolder]: For 365207/366726 co-relation queries the response was YES. [2021-03-26 05:20:54,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83599 conditions, 9091 events. 2849/9091 cut-off events. For 365207/366726 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 104734 event pairs, 658 based on Foata normal form. 485/9151 useless extension candidates. Maximal degree in co-relation 83132. Up to 1733 conditions per place. [2021-03-26 05:20:54,356 INFO L142 LiptonReduction]: Number of co-enabled transitions 3958 [2021-03-26 05:21:00,107 INFO L154 LiptonReduction]: Checked pairs total: 194 [2021-03-26 05:21:00,107 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 05:21:00,108 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7881 [2021-03-26 05:21:00,109 INFO L480 AbstractCegarLoop]: Abstraction has has 367 places, 763 transitions, 21469 flow [2021-03-26 05:21:00,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:00,110 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:21:00,110 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:21:00,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-26 05:21:00,110 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:21:00,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:21:00,110 INFO L82 PathProgramCache]: Analyzing trace with hash 793446919, now seen corresponding path program 1 times [2021-03-26 05:21:00,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:21:00,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438314165] [2021-03-26 05:21:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:21:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:21:00,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:00,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:21:00,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:00,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:00,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:00,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:00,142 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-03-26 05:21:00,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:21:00,148 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-26 05:21:00,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:00,155 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-26 05:21:00,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:00,155 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-26 05:21:00,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 05:21:00,159 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:21:00,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:00,165 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:21:00,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:00,172 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 05:21:00,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:21:00,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:00,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:21:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:21:00,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438314165] [2021-03-26 05:21:00,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:21:00,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 05:21:00,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522582040] [2021-03-26 05:21:00,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 05:21:00,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:21:00,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 05:21:00,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-03-26 05:21:00,181 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 266 [2021-03-26 05:21:00,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 763 transitions, 21469 flow. Second operand has 10 states, 10 states have (on average 48.9) internal successors, (489), 10 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:00,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:21:00,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 266 [2021-03-26 05:21:00,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:21:03,969 INFO L129 PetriNetUnfolder]: 3186/9741 cut-off events. [2021-03-26 05:21:03,969 INFO L130 PetriNetUnfolder]: For 418203/419420 co-relation queries the response was YES. [2021-03-26 05:21:04,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95851 conditions, 9741 events. 3186/9741 cut-off events. For 418203/419420 co-relation queries the response was YES. Maximal size of possible extension queue 635. Compared 110456 event pairs, 492 based on Foata normal form. 784/10262 useless extension candidates. Maximal degree in co-relation 95433. Up to 1844 conditions per place. [2021-03-26 05:21:04,104 INFO L132 encePairwiseOnDemand]: 231/266 looper letters, 424 selfloop transitions, 422 changer transitions 15/913 dead transitions. [2021-03-26 05:21:04,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 913 transitions, 26628 flow [2021-03-26 05:21:04,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 05:21:04,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 05:21:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 754 transitions. [2021-03-26 05:21:04,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2362155388471178 [2021-03-26 05:21:04,105 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 754 transitions. [2021-03-26 05:21:04,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 754 transitions. [2021-03-26 05:21:04,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:21:04,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 754 transitions. [2021-03-26 05:21:04,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 62.833333333333336) internal successors, (754), 12 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:04,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:04,108 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:04,108 INFO L185 Difference]: Start difference. First operand has 367 places, 763 transitions, 21469 flow. Second operand 12 states and 754 transitions. [2021-03-26 05:21:04,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 913 transitions, 26628 flow [2021-03-26 05:21:06,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 913 transitions, 26307 flow, removed 23 selfloop flow, removed 4 redundant places. [2021-03-26 05:21:06,180 INFO L241 Difference]: Finished difference. Result has 379 places, 811 transitions, 23628 flow [2021-03-26 05:21:06,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=21086, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=761, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=373, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=23628, PETRI_PLACES=379, PETRI_TRANSITIONS=811} [2021-03-26 05:21:06,180 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 331 predicate places. [2021-03-26 05:21:06,180 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:21:06,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 379 places, 811 transitions, 23628 flow [2021-03-26 05:21:06,180 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 379 places, 811 transitions, 23628 flow [2021-03-26 05:21:06,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 379 places, 811 transitions, 23628 flow [2021-03-26 05:21:08,126 INFO L129 PetriNetUnfolder]: 2803/9090 cut-off events. [2021-03-26 05:21:08,126 INFO L130 PetriNetUnfolder]: For 401824/403228 co-relation queries the response was YES. [2021-03-26 05:21:08,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88495 conditions, 9090 events. 2803/9090 cut-off events. For 401824/403228 co-relation queries the response was YES. Maximal size of possible extension queue 609. Compared 105659 event pairs, 656 based on Foata normal form. 514/9202 useless extension candidates. Maximal degree in co-relation 88037. Up to 1738 conditions per place. [2021-03-26 05:21:08,456 INFO L142 LiptonReduction]: Number of co-enabled transitions 4018 [2021-03-26 05:21:14,132 INFO L154 LiptonReduction]: Checked pairs total: 463 [2021-03-26 05:21:14,132 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 05:21:14,132 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7952 [2021-03-26 05:21:14,134 INFO L480 AbstractCegarLoop]: Abstraction has has 379 places, 811 transitions, 23636 flow [2021-03-26 05:21:14,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 48.9) internal successors, (489), 10 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:14,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:21:14,134 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:21:14,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-26 05:21:14,135 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:21:14,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:21:14,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1545647233, now seen corresponding path program 2 times [2021-03-26 05:21:14,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:21:14,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614858696] [2021-03-26 05:21:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:21:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:21:14,149 INFO L142 QuantifierPusher]: treesize reduction 27, result has 37.2 percent of original size [2021-03-26 05:21:14,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:21:14,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:14,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:21:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:14,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:14,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:14,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:14,167 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-03-26 05:21:14,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 05:21:14,170 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:21:14,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:14,174 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:21:14,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:14,179 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 05:21:14,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:21:14,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:21:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:21:14,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614858696] [2021-03-26 05:21:14,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:21:14,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:21:14,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327217801] [2021-03-26 05:21:14,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 05:21:14,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:21:14,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 05:21:14,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-26 05:21:14,186 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 270 [2021-03-26 05:21:14,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 811 transitions, 23636 flow. Second operand has 7 states, 7 states have (on average 49.714285714285715) internal successors, (348), 7 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:14,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:21:14,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 270 [2021-03-26 05:21:14,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:21:17,653 INFO L129 PetriNetUnfolder]: 2566/8486 cut-off events. [2021-03-26 05:21:17,654 INFO L130 PetriNetUnfolder]: For 397790/399109 co-relation queries the response was YES. [2021-03-26 05:21:17,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87006 conditions, 8486 events. 2566/8486 cut-off events. For 397790/399109 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 98388 event pairs, 596 based on Foata normal form. 667/8853 useless extension candidates. Maximal degree in co-relation 86589. Up to 1589 conditions per place. [2021-03-26 05:21:17,779 INFO L132 encePairwiseOnDemand]: 250/270 looper letters, 532 selfloop transitions, 256 changer transitions 36/876 dead transitions. [2021-03-26 05:21:17,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 876 transitions, 26575 flow [2021-03-26 05:21:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 05:21:17,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 05:21:17,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 466 transitions. [2021-03-26 05:21:17,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24656084656084656 [2021-03-26 05:21:17,780 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 466 transitions. [2021-03-26 05:21:17,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 466 transitions. [2021-03-26 05:21:17,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:21:17,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 466 transitions. [2021-03-26 05:21:17,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:17,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 270.0) internal successors, (2160), 8 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:17,782 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 270.0) internal successors, (2160), 8 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:17,782 INFO L185 Difference]: Start difference. First operand has 379 places, 811 transitions, 23636 flow. Second operand 7 states and 466 transitions. [2021-03-26 05:21:17,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 876 transitions, 26575 flow [2021-03-26 05:21:19,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 876 transitions, 26274 flow, removed 67 selfloop flow, removed 3 redundant places. [2021-03-26 05:21:19,919 INFO L241 Difference]: Finished difference. Result has 384 places, 750 transitions, 22148 flow [2021-03-26 05:21:19,919 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=270, PETRI_DIFFERENCE_MINUEND_FLOW=21245, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=751, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=232, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22148, PETRI_PLACES=384, PETRI_TRANSITIONS=750} [2021-03-26 05:21:19,919 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 336 predicate places. [2021-03-26 05:21:19,919 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:21:19,919 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 384 places, 750 transitions, 22148 flow [2021-03-26 05:21:19,920 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 384 places, 750 transitions, 22148 flow [2021-03-26 05:21:19,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 384 places, 750 transitions, 22148 flow [2021-03-26 05:21:21,592 INFO L129 PetriNetUnfolder]: 2114/7734 cut-off events. [2021-03-26 05:21:21,592 INFO L130 PetriNetUnfolder]: For 346590/347810 co-relation queries the response was YES. [2021-03-26 05:21:21,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75186 conditions, 7734 events. 2114/7734 cut-off events. For 346590/347810 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 92471 event pairs, 717 based on Foata normal form. 255/7562 useless extension candidates. Maximal degree in co-relation 74775. Up to 1429 conditions per place. [2021-03-26 05:21:21,761 INFO L142 LiptonReduction]: Number of co-enabled transitions 3310 [2021-03-26 05:21:26,521 INFO L154 LiptonReduction]: Checked pairs total: 595 [2021-03-26 05:21:26,521 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 05:21:26,522 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6603 [2021-03-26 05:21:26,524 INFO L480 AbstractCegarLoop]: Abstraction has has 384 places, 750 transitions, 22158 flow [2021-03-26 05:21:26,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 49.714285714285715) internal successors, (348), 7 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:26,524 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:21:26,524 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:21:26,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-26 05:21:26,524 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:21:26,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:21:26,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1377668088, now seen corresponding path program 1 times [2021-03-26 05:21:26,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:21:26,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620871839] [2021-03-26 05:21:26,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:21:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:21:26,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:26,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:21:26,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:26,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:26,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:26,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:26,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:26,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:21:26,564 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-26 05:21:26,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:26,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:26,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:26,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:26,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:26,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:26,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:26,583 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-26 05:21:26,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 05:21:26,588 INFO L142 QuantifierPusher]: treesize reduction 18, result has 51.4 percent of original size [2021-03-26 05:21:26,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 05:21:26,602 INFO L142 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size [2021-03-26 05:21:26,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:21:26,613 INFO L142 QuantifierPusher]: treesize reduction 7, result has 61.1 percent of original size [2021-03-26 05:21:26,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 05:21:26,625 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-26 05:21:26,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:26,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:26,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:21:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:21:26,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620871839] [2021-03-26 05:21:26,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:21:26,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-26 05:21:26,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871504975] [2021-03-26 05:21:26,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 05:21:26,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:21:26,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 05:21:26,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-03-26 05:21:26,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 275 [2021-03-26 05:21:26,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 750 transitions, 22158 flow. Second operand has 12 states, 12 states have (on average 48.583333333333336) internal successors, (583), 12 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:26,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:21:26,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 275 [2021-03-26 05:21:26,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:21:30,371 INFO L129 PetriNetUnfolder]: 1998/7404 cut-off events. [2021-03-26 05:21:30,371 INFO L130 PetriNetUnfolder]: For 341580/341968 co-relation queries the response was YES. [2021-03-26 05:21:30,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75084 conditions, 7404 events. 1998/7404 cut-off events. For 341580/341968 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 90038 event pairs, 551 based on Foata normal form. 300/7413 useless extension candidates. Maximal degree in co-relation 74841. Up to 1443 conditions per place. [2021-03-26 05:21:30,473 INFO L132 encePairwiseOnDemand]: 226/275 looper letters, 287 selfloop transitions, 546 changer transitions 105/976 dead transitions. [2021-03-26 05:21:30,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 976 transitions, 29696 flow [2021-03-26 05:21:30,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-26 05:21:30,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-03-26 05:21:30,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 1962 transitions. [2021-03-26 05:21:30,476 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20384415584415586 [2021-03-26 05:21:30,476 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 1962 transitions. [2021-03-26 05:21:30,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 1962 transitions. [2021-03-26 05:21:30,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:21:30,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 1962 transitions. [2021-03-26 05:21:30,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 56.05714285714286) internal successors, (1962), 35 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:30,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 275.0) internal successors, (9900), 36 states have internal predecessors, (9900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:30,483 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 275.0) internal successors, (9900), 36 states have internal predecessors, (9900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:30,483 INFO L185 Difference]: Start difference. First operand has 384 places, 750 transitions, 22158 flow. Second operand 35 states and 1962 transitions. [2021-03-26 05:21:30,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 976 transitions, 29696 flow [2021-03-26 05:21:32,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 976 transitions, 28508 flow, removed 101 selfloop flow, removed 20 redundant places. [2021-03-26 05:21:32,170 INFO L241 Difference]: Finished difference. Result has 421 places, 789 transitions, 24462 flow [2021-03-26 05:21:32,170 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=17569, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=363, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=24462, PETRI_PLACES=421, PETRI_TRANSITIONS=789} [2021-03-26 05:21:32,170 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 373 predicate places. [2021-03-26 05:21:32,170 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:21:32,170 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 421 places, 789 transitions, 24462 flow [2021-03-26 05:21:32,170 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 421 places, 789 transitions, 24462 flow [2021-03-26 05:21:32,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 411 places, 789 transitions, 24462 flow [2021-03-26 05:21:33,648 INFO L129 PetriNetUnfolder]: 1637/6616 cut-off events. [2021-03-26 05:21:33,648 INFO L130 PetriNetUnfolder]: For 328623/329441 co-relation queries the response was YES. [2021-03-26 05:21:33,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65619 conditions, 6616 events. 1637/6616 cut-off events. For 328623/329441 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 81816 event pairs, 652 based on Foata normal form. 158/6426 useless extension candidates. Maximal degree in co-relation 65371. Up to 1265 conditions per place. [2021-03-26 05:21:33,823 INFO L142 LiptonReduction]: Number of co-enabled transitions 2866 [2021-03-26 05:21:36,631 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-03-26 05:21:42,826 INFO L154 LiptonReduction]: Checked pairs total: 2690 [2021-03-26 05:21:42,826 INFO L156 LiptonReduction]: Total number of compositions: 21 [2021-03-26 05:21:42,826 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10656 [2021-03-26 05:21:42,828 INFO L480 AbstractCegarLoop]: Abstraction has has 411 places, 789 transitions, 24540 flow [2021-03-26 05:21:42,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 48.583333333333336) internal successors, (583), 12 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:42,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:21:42,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:21:42,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-26 05:21:42,829 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:21:42,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:21:42,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1845006215, now seen corresponding path program 1 times [2021-03-26 05:21:42,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:21:42,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111869538] [2021-03-26 05:21:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:21:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:21:42,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:42,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:42,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:42,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:42,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:42,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:42,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:42,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:42,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:42,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:42,861 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 05:21:42,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:42,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:21:42,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111869538] [2021-03-26 05:21:42,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:21:42,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 05:21:42,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689212152] [2021-03-26 05:21:42,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:21:42,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:21:42,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:21:42,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:21:42,870 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 296 [2021-03-26 05:21:42,870 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 789 transitions, 24540 flow. Second operand has 8 states, 8 states have (on average 273.875) internal successors, (2191), 8 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:42,870 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:21:42,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 296 [2021-03-26 05:21:42,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:21:45,577 INFO L129 PetriNetUnfolder]: 1631/6667 cut-off events. [2021-03-26 05:21:45,577 INFO L130 PetriNetUnfolder]: For 338868/339423 co-relation queries the response was YES. [2021-03-26 05:21:45,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68732 conditions, 6667 events. 1631/6667 cut-off events. For 338868/339423 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 83026 event pairs, 653 based on Foata normal form. 126/6433 useless extension candidates. Maximal degree in co-relation 68483. Up to 1328 conditions per place. [2021-03-26 05:21:45,673 INFO L132 encePairwiseOnDemand]: 281/296 looper letters, 11 selfloop transitions, 18 changer transitions 508/788 dead transitions. [2021-03-26 05:21:45,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 788 transitions, 24449 flow [2021-03-26 05:21:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 05:21:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 05:21:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2758 transitions. [2021-03-26 05:21:45,675 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9317567567567567 [2021-03-26 05:21:45,675 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2758 transitions. [2021-03-26 05:21:45,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2758 transitions. [2021-03-26 05:21:45,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:21:45,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2758 transitions. [2021-03-26 05:21:45,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 275.8) internal successors, (2758), 10 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:45,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 296.0) internal successors, (3256), 11 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:45,679 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 296.0) internal successors, (3256), 11 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:45,679 INFO L185 Difference]: Start difference. First operand has 411 places, 789 transitions, 24540 flow. Second operand 10 states and 2758 transitions. [2021-03-26 05:21:45,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 788 transitions, 24449 flow [2021-03-26 05:21:47,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 788 transitions, 22304 flow, removed 581 selfloop flow, removed 21 redundant places. [2021-03-26 05:21:47,963 INFO L241 Difference]: Finished difference. Result has 400 places, 277 transitions, 7146 flow [2021-03-26 05:21:47,963 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=22227, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=784, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=767, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7146, PETRI_PLACES=400, PETRI_TRANSITIONS=277} [2021-03-26 05:21:47,963 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 352 predicate places. [2021-03-26 05:21:47,963 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:21:47,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 400 places, 277 transitions, 7146 flow [2021-03-26 05:21:47,963 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 400 places, 277 transitions, 7146 flow [2021-03-26 05:21:47,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 377 places, 277 transitions, 7146 flow [2021-03-26 05:21:48,224 INFO L129 PetriNetUnfolder]: 396/1789 cut-off events. [2021-03-26 05:21:48,225 INFO L130 PetriNetUnfolder]: For 71197/71447 co-relation queries the response was YES. [2021-03-26 05:21:48,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16895 conditions, 1789 events. 396/1789 cut-off events. For 71197/71447 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 16834 event pairs, 170 based on Foata normal form. 25/1721 useless extension candidates. Maximal degree in co-relation 16730. Up to 297 conditions per place. [2021-03-26 05:21:48,271 INFO L142 LiptonReduction]: Number of co-enabled transitions 1134 [2021-03-26 05:21:48,536 INFO L154 LiptonReduction]: Checked pairs total: 327 [2021-03-26 05:21:48,537 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 05:21:48,537 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 574 [2021-03-26 05:21:48,538 INFO L480 AbstractCegarLoop]: Abstraction has has 377 places, 277 transitions, 7173 flow [2021-03-26 05:21:48,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 273.875) internal successors, (2191), 8 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:48,539 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:21:48,539 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:21:48,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-26 05:21:48,539 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:21:48,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:21:48,539 INFO L82 PathProgramCache]: Analyzing trace with hash 878563178, now seen corresponding path program 1 times [2021-03-26 05:21:48,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:21:48,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54377329] [2021-03-26 05:21:48,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:21:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:21:48,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:48,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:48,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:48,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:48,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:48,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:48,562 INFO L142 QuantifierPusher]: treesize reduction 18, result has 57.1 percent of original size [2021-03-26 05:21:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 05:21:48,576 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-26 05:21:48,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 05:21:48,588 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-03-26 05:21:48,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 05:21:48,599 INFO L142 QuantifierPusher]: treesize reduction 25, result has 57.6 percent of original size [2021-03-26 05:21:48,600 INFO L147 QuantifierPusher]: treesize reduction 15, result has 55.9 percent of original size 19 [2021-03-26 05:21:48,615 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.2 percent of original size [2021-03-26 05:21:48,616 INFO L147 QuantifierPusher]: treesize reduction 10, result has 73.7 percent of original size 28 [2021-03-26 05:21:48,634 INFO L142 QuantifierPusher]: treesize reduction 24, result has 4.0 percent of original size [2021-03-26 05:21:48,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:21:48,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:48,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:21:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:21:48,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54377329] [2021-03-26 05:21:48,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:21:48,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 05:21:48,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408822460] [2021-03-26 05:21:48,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 05:21:48,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:21:48,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 05:21:48,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 05:21:48,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 299 [2021-03-26 05:21:48,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 277 transitions, 7173 flow. Second operand has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:48,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:21:48,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 299 [2021-03-26 05:21:48,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:21:49,403 INFO L129 PetriNetUnfolder]: 469/1935 cut-off events. [2021-03-26 05:21:49,403 INFO L130 PetriNetUnfolder]: For 87644/87787 co-relation queries the response was YES. [2021-03-26 05:21:49,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19949 conditions, 1935 events. 469/1935 cut-off events. For 87644/87787 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 18038 event pairs, 202 based on Foata normal form. 63/1938 useless extension candidates. Maximal degree in co-relation 19783. Up to 685 conditions per place. [2021-03-26 05:21:49,425 INFO L132 encePairwiseOnDemand]: 276/299 looper letters, 118 selfloop transitions, 10 changer transitions 160/323 dead transitions. [2021-03-26 05:21:49,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 323 transitions, 9143 flow [2021-03-26 05:21:49,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-26 05:21:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-26 05:21:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 860 transitions. [2021-03-26 05:21:49,426 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1797658862876254 [2021-03-26 05:21:49,426 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 860 transitions. [2021-03-26 05:21:49,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 860 transitions. [2021-03-26 05:21:49,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:21:49,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 860 transitions. [2021-03-26 05:21:49,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.75) internal successors, (860), 16 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:49,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 299.0) internal successors, (5083), 17 states have internal predecessors, (5083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:49,430 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 299.0) internal successors, (5083), 17 states have internal predecessors, (5083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:49,430 INFO L185 Difference]: Start difference. First operand has 377 places, 277 transitions, 7173 flow. Second operand 16 states and 860 transitions. [2021-03-26 05:21:49,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 323 transitions, 9143 flow [2021-03-26 05:21:49,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 323 transitions, 7314 flow, removed 482 selfloop flow, removed 74 redundant places. [2021-03-26 05:21:49,705 INFO L241 Difference]: Finished difference. Result has 323 places, 163 transitions, 3181 flow [2021-03-26 05:21:49,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=5502, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3181, PETRI_PLACES=323, PETRI_TRANSITIONS=163} [2021-03-26 05:21:49,706 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 275 predicate places. [2021-03-26 05:21:49,706 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:21:49,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 163 transitions, 3181 flow [2021-03-26 05:21:49,706 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 163 transitions, 3181 flow [2021-03-26 05:21:49,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 286 places, 163 transitions, 3181 flow [2021-03-26 05:21:49,786 INFO L129 PetriNetUnfolder]: 184/807 cut-off events. [2021-03-26 05:21:49,786 INFO L130 PetriNetUnfolder]: For 20034/20083 co-relation queries the response was YES. [2021-03-26 05:21:49,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6326 conditions, 807 events. 184/807 cut-off events. For 20034/20083 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5804 event pairs, 76 based on Foata normal form. 5/772 useless extension candidates. Maximal degree in co-relation 6072. Up to 132 conditions per place. [2021-03-26 05:21:49,796 INFO L142 LiptonReduction]: Number of co-enabled transitions 684 [2021-03-26 05:21:49,934 INFO L154 LiptonReduction]: Checked pairs total: 364 [2021-03-26 05:21:49,934 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 05:21:49,934 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 228 [2021-03-26 05:21:49,935 INFO L480 AbstractCegarLoop]: Abstraction has has 283 places, 160 transitions, 3161 flow [2021-03-26 05:21:49,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:49,935 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:21:49,935 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:21:49,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-26 05:21:49,935 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:21:49,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:21:49,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1487870539, now seen corresponding path program 1 times [2021-03-26 05:21:49,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:21:49,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210128849] [2021-03-26 05:21:49,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:21:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:21:49,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:49,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:21:49,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:49,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:21:49,975 INFO L142 QuantifierPusher]: treesize reduction 19, result has 57.8 percent of original size [2021-03-26 05:21:49,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 05:21:49,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:49,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 05:21:49,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:49,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:21:49,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:49,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:21:49,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:49,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:49,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:49,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:50,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:50,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:50,012 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:21:50,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:50,019 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-26 05:21:50,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:50,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:50,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:21:50,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:21:50,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210128849] [2021-03-26 05:21:50,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:21:50,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 05:21:50,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283353807] [2021-03-26 05:21:50,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 05:21:50,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:21:50,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 05:21:50,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-26 05:21:50,029 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 304 [2021-03-26 05:21:50,029 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 160 transitions, 3161 flow. Second operand has 10 states, 10 states have (on average 50.8) internal successors, (508), 10 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:50,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:21:50,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 304 [2021-03-26 05:21:50,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:21:50,334 INFO L129 PetriNetUnfolder]: 255/960 cut-off events. [2021-03-26 05:21:50,334 INFO L130 PetriNetUnfolder]: For 27497/27559 co-relation queries the response was YES. [2021-03-26 05:21:50,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8271 conditions, 960 events. 255/960 cut-off events. For 27497/27559 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6865 event pairs, 87 based on Foata normal form. 11/942 useless extension candidates. Maximal degree in co-relation 8006. Up to 296 conditions per place. [2021-03-26 05:21:50,343 INFO L132 encePairwiseOnDemand]: 285/304 looper letters, 93 selfloop transitions, 9 changer transitions 54/191 dead transitions. [2021-03-26 05:21:50,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 191 transitions, 4116 flow [2021-03-26 05:21:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 05:21:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 05:21:50,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 616 transitions. [2021-03-26 05:21:50,344 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18421052631578946 [2021-03-26 05:21:50,344 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 616 transitions. [2021-03-26 05:21:50,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 616 transitions. [2021-03-26 05:21:50,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:21:50,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 616 transitions. [2021-03-26 05:21:50,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.0) internal successors, (616), 11 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:50,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 304.0) internal successors, (3648), 12 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:50,346 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 304.0) internal successors, (3648), 12 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:50,346 INFO L185 Difference]: Start difference. First operand has 283 places, 160 transitions, 3161 flow. Second operand 11 states and 616 transitions. [2021-03-26 05:21:50,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 191 transitions, 4116 flow [2021-03-26 05:21:50,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 191 transitions, 3329 flow, removed 162 selfloop flow, removed 60 redundant places. [2021-03-26 05:21:50,412 INFO L241 Difference]: Finished difference. Result has 237 places, 132 transitions, 1972 flow [2021-03-26 05:21:50,412 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=2508, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1972, PETRI_PLACES=237, PETRI_TRANSITIONS=132} [2021-03-26 05:21:50,412 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 189 predicate places. [2021-03-26 05:21:50,412 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:21:50,413 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 132 transitions, 1972 flow [2021-03-26 05:21:50,413 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 132 transitions, 1972 flow [2021-03-26 05:21:50,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 132 transitions, 1972 flow [2021-03-26 05:21:50,465 INFO L129 PetriNetUnfolder]: 138/681 cut-off events. [2021-03-26 05:21:50,465 INFO L130 PetriNetUnfolder]: For 10394/10435 co-relation queries the response was YES. [2021-03-26 05:21:50,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4261 conditions, 681 events. 138/681 cut-off events. For 10394/10435 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4787 event pairs, 60 based on Foata normal form. 5/653 useless extension candidates. Maximal degree in co-relation 4181. Up to 119 conditions per place. [2021-03-26 05:21:50,472 INFO L142 LiptonReduction]: Number of co-enabled transitions 586 [2021-03-26 05:21:50,508 INFO L154 LiptonReduction]: Checked pairs total: 170 [2021-03-26 05:21:50,508 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:21:50,508 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-03-26 05:21:50,509 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 132 transitions, 1974 flow [2021-03-26 05:21:50,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 50.8) internal successors, (508), 10 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:50,510 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:21:50,510 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:21:50,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-26 05:21:50,510 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:21:50,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:21:50,510 INFO L82 PathProgramCache]: Analyzing trace with hash -803230005, now seen corresponding path program 1 times [2021-03-26 05:21:50,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:21:50,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040934826] [2021-03-26 05:21:50,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:21:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:21:50,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:50,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 05:21:50,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:50,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:21:50,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:50,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:50,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:50,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:50,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:50,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:50,563 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 05:21:50,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:50,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:50,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:21:50,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:50,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:21:50,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:21:50,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040934826] [2021-03-26 05:21:50,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:21:50,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 05:21:50,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148586226] [2021-03-26 05:21:50,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 05:21:50,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:21:50,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 05:21:50,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-26 05:21:50,579 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 305 [2021-03-26 05:21:50,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 132 transitions, 1974 flow. Second operand has 9 states, 9 states have (on average 51.0) internal successors, (459), 9 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:50,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:21:50,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 305 [2021-03-26 05:21:50,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:21:50,787 INFO L129 PetriNetUnfolder]: 129/572 cut-off events. [2021-03-26 05:21:50,787 INFO L130 PetriNetUnfolder]: For 10798/10836 co-relation queries the response was YES. [2021-03-26 05:21:50,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4108 conditions, 572 events. 129/572 cut-off events. For 10798/10836 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3627 event pairs, 48 based on Foata normal form. 23/577 useless extension candidates. Maximal degree in co-relation 3619. Up to 96 conditions per place. [2021-03-26 05:21:50,791 INFO L132 encePairwiseOnDemand]: 288/305 looper letters, 30 selfloop transitions, 23 changer transitions 59/135 dead transitions. [2021-03-26 05:21:50,791 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 135 transitions, 2213 flow [2021-03-26 05:21:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 05:21:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 05:21:50,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 708 transitions. [2021-03-26 05:21:50,793 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.178562421185372 [2021-03-26 05:21:50,793 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 708 transitions. [2021-03-26 05:21:50,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 708 transitions. [2021-03-26 05:21:50,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:21:50,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 708 transitions. [2021-03-26 05:21:50,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.46153846153846) internal successors, (708), 13 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:50,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:50,795 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:50,795 INFO L185 Difference]: Start difference. First operand has 225 places, 132 transitions, 1974 flow. Second operand 13 states and 708 transitions. [2021-03-26 05:21:50,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 135 transitions, 2213 flow [2021-03-26 05:21:50,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 135 transitions, 1986 flow, removed 43 selfloop flow, removed 31 redundant places. [2021-03-26 05:21:50,820 INFO L241 Difference]: Finished difference. Result has 203 places, 71 transitions, 946 flow [2021-03-26 05:21:50,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1518, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=946, PETRI_PLACES=203, PETRI_TRANSITIONS=71} [2021-03-26 05:21:50,820 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 155 predicate places. [2021-03-26 05:21:50,821 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:21:50,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 71 transitions, 946 flow [2021-03-26 05:21:50,821 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 71 transitions, 946 flow [2021-03-26 05:21:50,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 162 places, 71 transitions, 946 flow [2021-03-26 05:21:50,841 INFO L129 PetriNetUnfolder]: 60/301 cut-off events. [2021-03-26 05:21:50,841 INFO L130 PetriNetUnfolder]: For 4066/4086 co-relation queries the response was YES. [2021-03-26 05:21:50,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1907 conditions, 301 events. 60/301 cut-off events. For 4066/4086 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1483 event pairs, 27 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 1501. Up to 51 conditions per place. [2021-03-26 05:21:50,844 INFO L142 LiptonReduction]: Number of co-enabled transitions 298 [2021-03-26 05:21:51,060 INFO L154 LiptonReduction]: Checked pairs total: 306 [2021-03-26 05:21:51,061 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-26 05:21:51,061 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 240 [2021-03-26 05:21:51,062 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 70 transitions, 997 flow [2021-03-26 05:21:51,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 51.0) internal successors, (459), 9 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,062 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:21:51,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:21:51,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-26 05:21:51,062 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:21:51,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:21:51,062 INFO L82 PathProgramCache]: Analyzing trace with hash -476960484, now seen corresponding path program 1 times [2021-03-26 05:21:51,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:21:51,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955665542] [2021-03-26 05:21:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:21:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:21:51,116 INFO L142 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size [2021-03-26 05:21:51,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 05:21:51,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:51,130 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-03-26 05:21:51,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:51,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 05:21:51,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 05:21:51,147 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-03-26 05:21:51,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:21:51,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:21:51,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:21:51,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 05:21:51,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:21:51,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:21:51,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:21:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:21:51,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955665542] [2021-03-26 05:21:51,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:21:51,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-26 05:21:51,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208682059] [2021-03-26 05:21:51,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 05:21:51,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:21:51,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 05:21:51,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-26 05:21:51,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 314 [2021-03-26 05:21:51,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 70 transitions, 997 flow. Second operand has 11 states, 11 states have (on average 50.72727272727273) internal successors, (558), 11 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:21:51,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 314 [2021-03-26 05:21:51,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:21:51,336 INFO L129 PetriNetUnfolder]: 62/295 cut-off events. [2021-03-26 05:21:51,336 INFO L130 PetriNetUnfolder]: For 5144/5173 co-relation queries the response was YES. [2021-03-26 05:21:51,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2058 conditions, 295 events. 62/295 cut-off events. For 5144/5173 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1417 event pairs, 24 based on Foata normal form. 9/293 useless extension candidates. Maximal degree in co-relation 1600. Up to 89 conditions per place. [2021-03-26 05:21:51,338 INFO L132 encePairwiseOnDemand]: 301/314 looper letters, 30 selfloop transitions, 8 changer transitions 14/74 dead transitions. [2021-03-26 05:21:51,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 74 transitions, 1141 flow [2021-03-26 05:21:51,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 05:21:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 05:21:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 483 transitions. [2021-03-26 05:21:51,339 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17091295116772823 [2021-03-26 05:21:51,339 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 483 transitions. [2021-03-26 05:21:51,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 483 transitions. [2021-03-26 05:21:51,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:21:51,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 483 transitions. [2021-03-26 05:21:51,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 53.666666666666664) internal successors, (483), 9 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 314.0) internal successors, (3140), 10 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,349 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 314.0) internal successors, (3140), 10 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,349 INFO L185 Difference]: Start difference. First operand has 161 places, 70 transitions, 997 flow. Second operand 9 states and 483 transitions. [2021-03-26 05:21:51,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 74 transitions, 1141 flow [2021-03-26 05:21:51,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 74 transitions, 752 flow, removed 45 selfloop flow, removed 55 redundant places. [2021-03-26 05:21:51,357 INFO L241 Difference]: Finished difference. Result has 115 places, 55 transitions, 458 flow [2021-03-26 05:21:51,357 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=314, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=458, PETRI_PLACES=115, PETRI_TRANSITIONS=55} [2021-03-26 05:21:51,357 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 67 predicate places. [2021-03-26 05:21:51,358 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:21:51,358 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 55 transitions, 458 flow [2021-03-26 05:21:51,358 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 55 transitions, 458 flow [2021-03-26 05:21:51,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 55 transitions, 458 flow [2021-03-26 05:21:51,368 INFO L129 PetriNetUnfolder]: 40/226 cut-off events. [2021-03-26 05:21:51,368 INFO L130 PetriNetUnfolder]: For 1122/1133 co-relation queries the response was YES. [2021-03-26 05:21:51,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 226 events. 40/226 cut-off events. For 1122/1133 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1002 event pairs, 28 based on Foata normal form. 1/213 useless extension candidates. Maximal degree in co-relation 791. Up to 39 conditions per place. [2021-03-26 05:21:51,370 INFO L142 LiptonReduction]: Number of co-enabled transitions 224 [2021-03-26 05:21:51,510 INFO L154 LiptonReduction]: Checked pairs total: 34 [2021-03-26 05:21:51,510 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 05:21:51,510 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 152 [2021-03-26 05:21:51,511 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 51 transitions, 465 flow [2021-03-26 05:21:51,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 50.72727272727273) internal successors, (558), 11 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,512 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:21:51,512 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:21:51,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-26 05:21:51,512 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:21:51,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:21:51,512 INFO L82 PathProgramCache]: Analyzing trace with hash -974673234, now seen corresponding path program 1 times [2021-03-26 05:21:51,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:21:51,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667069952] [2021-03-26 05:21:51,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:21:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:21:51,531 INFO L142 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size [2021-03-26 05:21:51,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 05:21:51,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:51,545 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-03-26 05:21:51,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 05:21:51,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 05:21:51,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 05:21:51,565 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-03-26 05:21:51,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 05:21:51,575 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-03-26 05:21:51,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 05:21:51,585 INFO L142 QuantifierPusher]: treesize reduction 7, result has 70.8 percent of original size [2021-03-26 05:21:51,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 05:21:51,596 INFO L142 QuantifierPusher]: treesize reduction 7, result has 56.3 percent of original size [2021-03-26 05:21:51,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:21:51,604 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-03-26 05:21:51,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 05:21:51,612 INFO L142 QuantifierPusher]: treesize reduction 26, result has 33.3 percent of original size [2021-03-26 05:21:51,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 05:21:51,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:21:51,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:21:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:21:51,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667069952] [2021-03-26 05:21:51,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:21:51,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 05:21:51,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683158448] [2021-03-26 05:21:51,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 05:21:51,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:21:51,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 05:21:51,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-03-26 05:21:51,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 321 [2021-03-26 05:21:51,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 51 transitions, 465 flow. Second operand has 10 states, 10 states have (on average 50.9) internal successors, (509), 10 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:21:51,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 321 [2021-03-26 05:21:51,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:21:51,735 INFO L129 PetriNetUnfolder]: 36/151 cut-off events. [2021-03-26 05:21:51,735 INFO L130 PetriNetUnfolder]: For 1485/1489 co-relation queries the response was YES. [2021-03-26 05:21:51,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 151 events. 36/151 cut-off events. For 1485/1489 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 629 event pairs, 14 based on Foata normal form. 16/160 useless extension candidates. Maximal degree in co-relation 756. Up to 34 conditions per place. [2021-03-26 05:21:51,735 INFO L132 encePairwiseOnDemand]: 309/321 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2021-03-26 05:21:51,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 51 transitions, 559 flow [2021-03-26 05:21:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 05:21:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 05:21:51,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 430 transitions. [2021-03-26 05:21:51,736 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1674454828660436 [2021-03-26 05:21:51,736 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 430 transitions. [2021-03-26 05:21:51,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 430 transitions. [2021-03-26 05:21:51,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:21:51,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 430 transitions. [2021-03-26 05:21:51,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 53.75) internal successors, (430), 8 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 321.0) internal successors, (2889), 9 states have internal predecessors, (2889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,738 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 321.0) internal successors, (2889), 9 states have internal predecessors, (2889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,738 INFO L185 Difference]: Start difference. First operand has 103 places, 51 transitions, 465 flow. Second operand 8 states and 430 transitions. [2021-03-26 05:21:51,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 51 transitions, 559 flow [2021-03-26 05:21:51,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 51 transitions, 467 flow, removed 23 selfloop flow, removed 22 redundant places. [2021-03-26 05:21:51,740 INFO L241 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2021-03-26 05:21:51,740 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2021-03-26 05:21:51,740 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 30 predicate places. [2021-03-26 05:21:51,741 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:21:51,741 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 0 transitions, 0 flow [2021-03-26 05:21:51,741 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 0 transitions, 0 flow [2021-03-26 05:21:51,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 05:21:51,741 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 05:21:51,741 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 05:21:51,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 05:21:51,741 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 05:21:51,741 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 05:21:51,741 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:21:51,741 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 05:21:51,743 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 05:21:51,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 50.9) internal successors, (509), 10 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:21:51,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-26 05:21:51,746 INFO L202 PluginConnector]: Adding new model bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 05:21:51 BasicIcfg [2021-03-26 05:21:51,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 05:21:51,750 INFO L168 Benchmark]: Toolchain (without parser) took 562784.31 ms. Allocated memory was 367.0 MB in the beginning and 7.1 GB in the end (delta: 6.7 GB). Free memory was 347.4 MB in the beginning and 4.0 GB in the end (delta: -3.7 GB). Peak memory consumption was 3.0 GB. Max. memory is 16.0 GB. [2021-03-26 05:21:51,750 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.41 ms. Allocated memory is still 367.0 MB. Free memory was 348.6 MB in the beginning and 348.6 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 05:21:51,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.13 ms. Allocated memory is still 367.0 MB. Free memory was 347.3 MB in the beginning and 345.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 05:21:51,750 INFO L168 Benchmark]: Boogie Preprocessor took 25.02 ms. Allocated memory is still 367.0 MB. Free memory was 345.9 MB in the beginning and 344.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 05:21:51,750 INFO L168 Benchmark]: RCFGBuilder took 177.56 ms. Allocated memory is still 367.0 MB. Free memory was 344.8 MB in the beginning and 331.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 05:21:51,752 INFO L168 Benchmark]: TraceAbstraction took 562560.42 ms. Allocated memory was 367.0 MB in the beginning and 7.1 GB in the end (delta: 6.7 GB). Free memory was 330.5 MB in the beginning and 4.0 GB in the end (delta: -3.7 GB). Peak memory consumption was 3.0 GB. Max. memory is 16.0 GB. [2021-03-26 05:21:51,752 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 0.41 ms. Allocated memory is still 367.0 MB. Free memory was 348.6 MB in the beginning and 348.6 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.13 ms. Allocated memory is still 367.0 MB. Free memory was 347.3 MB in the beginning and 345.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.02 ms. Allocated memory is still 367.0 MB. Free memory was 345.9 MB in the beginning and 344.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 177.56 ms. Allocated memory is still 367.0 MB. Free memory was 344.8 MB in the beginning and 331.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 562560.42 ms. Allocated memory was 367.0 MB in the beginning and 7.1 GB in the end (delta: 6.7 GB). Free memory was 330.5 MB in the beginning and 4.0 GB in the end (delta: -3.7 GB). Peak memory consumption was 3.0 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 470.6ms, 58 PlacesBefore, 48 PlacesAfterwards, 48 TransitionsBefore, 38 TransitionsAfterwards, 1170 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 2728 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 973, positive: 873, positive conditional: 873, positive unconditional: 0, negative: 100, negative conditional: 100, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 711, positive: 638, positive conditional: 0, positive unconditional: 638, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 711, positive: 638, positive conditional: 0, positive unconditional: 638, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 711, positive: 608, positive conditional: 0, positive unconditional: 608, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 103, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 261, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 194, negative conditional: 0, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 973, positive: 235, positive conditional: 235, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 711, unknown conditional: 711, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 295, Positive conditional cache size: 295, Positive unconditional cache size: 0, Negative cache size: 52, Negative conditional cache size: 52, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 83.6ms, 56 PlacesBefore, 54 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 978 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 3129 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1044, positive: 927, positive conditional: 927, positive unconditional: 0, negative: 117, negative conditional: 117, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 329, positive: 325, positive conditional: 180, positive unconditional: 145, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 329, positive: 325, positive conditional: 180, positive unconditional: 145, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 329, positive: 324, positive conditional: 0, positive unconditional: 324, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 11, negative conditional: 4, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1044, positive: 602, positive conditional: 602, positive unconditional: 0, negative: 113, negative conditional: 113, negative unconditional: 0, unknown: 329, unknown conditional: 329, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 516, Positive cache size: 471, Positive conditional cache size: 471, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 144.7ms, 64 PlacesBefore, 64 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 1276 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1581 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 470, positive: 421, positive conditional: 421, positive unconditional: 0, negative: 49, negative conditional: 49, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 82, positive: 59, positive conditional: 25, positive unconditional: 34, negative: 23, negative conditional: 8, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 82, positive: 59, positive conditional: 25, positive unconditional: 34, negative: 23, negative conditional: 8, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 82, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 11, positive conditional: 7, positive unconditional: 4, negative: 23, negative conditional: 8, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 79, positive: 26, positive conditional: 19, positive unconditional: 7, negative: 53, negative conditional: 20, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 470, positive: 362, positive conditional: 362, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 82, unknown conditional: 82, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 598, Positive cache size: 530, Positive conditional cache size: 530, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.3ms, 67 PlacesBefore, 67 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 1194 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1322 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 413, positive: 371, positive conditional: 371, positive unconditional: 0, negative: 42, negative conditional: 42, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 24, positive conditional: 16, positive unconditional: 8, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26, positive: 24, positive conditional: 16, positive unconditional: 8, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 26, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 413, positive: 347, positive conditional: 347, positive unconditional: 0, negative: 40, negative conditional: 40, negative unconditional: 0, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 624, Positive cache size: 554, Positive conditional cache size: 554, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.9ms, 68 PlacesBefore, 68 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 1140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1053 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 278, positive: 243, positive conditional: 243, positive unconditional: 0, negative: 35, negative conditional: 35, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 21, positive conditional: 1, positive unconditional: 20, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, positive: 21, positive conditional: 1, positive unconditional: 20, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 278, positive: 222, positive conditional: 222, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 24, unknown conditional: 24, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 648, Positive cache size: 575, Positive conditional cache size: 575, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 105.1ms, 84 PlacesBefore, 84 PlacesAfterwards, 100 TransitionsBefore, 100 TransitionsAfterwards, 1410 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1139 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 323, positive: 293, positive conditional: 293, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 9, positive unconditional: 8, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 9, positive unconditional: 8, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 7, negative conditional: 3, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 323, positive: 276, positive conditional: 276, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 592, Positive conditional cache size: 592, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2308.2ms, 113 PlacesBefore, 113 PlacesAfterwards, 211 TransitionsBefore, 211 TransitionsAfterwards, 2666 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6849 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1981, positive: 1887, positive conditional: 1887, positive unconditional: 0, negative: 94, negative conditional: 94, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 157, positive: 153, positive conditional: 117, positive unconditional: 36, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 157, positive: 153, positive conditional: 117, positive unconditional: 36, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 157, positive: 151, positive conditional: 0, positive unconditional: 151, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 3, positive conditional: 2, positive unconditional: 2, negative: 9, negative conditional: 6, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1981, positive: 1734, positive conditional: 1734, positive unconditional: 0, negative: 90, negative conditional: 90, negative unconditional: 0, unknown: 157, unknown conditional: 157, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 777, Positive cache size: 704, Positive conditional cache size: 704, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4161.4ms, 130 PlacesBefore, 130 PlacesAfterwards, 320 TransitionsBefore, 320 TransitionsAfterwards, 3750 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 7751 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2738, positive: 2669, positive conditional: 2669, positive unconditional: 0, negative: 69, negative conditional: 69, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 81, positive: 77, positive conditional: 73, positive unconditional: 4, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 81, positive: 77, positive conditional: 73, positive unconditional: 4, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 81, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 7, positive conditional: 5, positive unconditional: 1, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2738, positive: 2592, positive conditional: 2592, positive unconditional: 0, negative: 65, negative conditional: 65, negative unconditional: 0, unknown: 81, unknown conditional: 81, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 858, Positive cache size: 781, Positive conditional cache size: 781, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3977.8ms, 144 PlacesBefore, 144 PlacesAfterwards, 389 TransitionsBefore, 389 TransitionsAfterwards, 3824 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 12835 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 846, positive: 756, positive conditional: 756, positive unconditional: 0, negative: 90, negative conditional: 90, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 12, positive unconditional: 1, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 12, positive unconditional: 1, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 846, positive: 743, positive conditional: 743, positive unconditional: 0, negative: 87, negative conditional: 87, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 874, Positive cache size: 794, Positive conditional cache size: 794, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5650.2ms, 145 PlacesBefore, 145 PlacesAfterwards, 372 TransitionsBefore, 372 TransitionsAfterwards, 3310 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 13 ConcurrentYvCompositions, 0 ChoiceCompositions, 17 TotalNumberOfCompositions, 3057 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2164, positive: 2152, positive conditional: 2152, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 313, positive: 312, positive conditional: 269, positive unconditional: 43, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 313, positive: 312, positive conditional: 269, positive unconditional: 43, 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: 313, positive: 312, positive conditional: 0, positive unconditional: 312, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2164, positive: 1840, positive conditional: 1840, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 313, unknown conditional: 313, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 984, Positive cache size: 922, Positive conditional cache size: 922, Positive unconditional cache size: 0, Negative cache size: 62, Negative conditional cache size: 62, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12121.8ms, 151 PlacesBefore, 151 PlacesAfterwards, 424 TransitionsBefore, 424 TransitionsAfterwards, 3574 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1152 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 220, positive: 208, positive conditional: 208, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 137, positive: 134, positive conditional: 115, positive unconditional: 19, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 137, positive: 134, positive conditional: 115, positive unconditional: 19, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 137, positive: 134, positive conditional: 0, positive unconditional: 134, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 220, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 137, unknown conditional: 137, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1068, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9760.9ms, 173 PlacesBefore, 172 PlacesAfterwards, 457 TransitionsBefore, 456 TransitionsAfterwards, 4326 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 320 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 192, positive: 190, positive conditional: 190, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 103, positive: 103, positive conditional: 103, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 103, positive: 103, positive conditional: 103, 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: 103, positive: 103, positive conditional: 0, positive unconditional: 103, 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: 192, positive: 87, positive conditional: 87, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 103, unknown conditional: 103, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 977, Positive cache size: 921, Positive conditional cache size: 921, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5498.4ms, 193 PlacesBefore, 193 PlacesAfterwards, 496 TransitionsBefore, 496 TransitionsAfterwards, 4438 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 70, positive: 70, positive conditional: 61, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 70, positive: 70, positive conditional: 61, positive unconditional: 9, 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: 70, positive: 70, positive conditional: 0, positive unconditional: 70, 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: 72, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 70, unknown conditional: 70, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1028, Positive cache size: 972, Positive conditional cache size: 972, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15354.4ms, 213 PlacesBefore, 213 PlacesAfterwards, 651 TransitionsBefore, 651 TransitionsAfterwards, 5764 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 227 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 227, positive: 227, positive conditional: 227, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 180, positive: 180, positive conditional: 173, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 180, positive: 180, positive conditional: 173, positive unconditional: 7, 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: 180, positive: 180, positive conditional: 0, positive unconditional: 180, 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: 227, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 180, unknown conditional: 180, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1208, Positive cache size: 1152, Positive conditional cache size: 1152, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28049.7ms, 238 PlacesBefore, 238 PlacesAfterwards, 830 TransitionsBefore, 830 TransitionsAfterwards, 7100 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 10 ConcurrentYvCompositions, 0 ChoiceCompositions, 17 TotalNumberOfCompositions, 3995 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3995, positive: 3995, positive conditional: 3995, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 424, positive: 424, positive conditional: 412, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 424, positive: 424, positive conditional: 412, positive unconditional: 12, 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: 424, positive: 424, positive conditional: 0, positive unconditional: 424, 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: 3995, positive: 3571, positive conditional: 3571, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 424, unknown conditional: 424, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1551, Positive cache size: 1495, Positive conditional cache size: 1495, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41501.2ms, 262 PlacesBefore, 262 PlacesAfterwards, 962 TransitionsBefore, 962 TransitionsAfterwards, 7790 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 2511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2511, positive: 2511, positive conditional: 2511, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 387, positive: 387, positive conditional: 379, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 387, positive: 387, positive conditional: 379, positive unconditional: 8, 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: 387, positive: 387, positive conditional: 0, positive unconditional: 387, 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: 2511, positive: 2124, positive conditional: 2124, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 387, unknown conditional: 387, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1873, Positive cache size: 1817, Positive conditional cache size: 1817, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34360.0ms, 273 PlacesBefore, 273 PlacesAfterwards, 947 TransitionsBefore, 947 TransitionsAfterwards, 7120 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 1258 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1258, positive: 1258, positive conditional: 1258, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 471, positive: 471, positive conditional: 460, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 471, positive: 471, positive conditional: 460, positive unconditional: 11, 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: 471, positive: 471, positive conditional: 0, positive unconditional: 471, 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: 1258, positive: 787, positive conditional: 787, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 471, unknown conditional: 471, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2238, Positive cache size: 2182, Positive conditional cache size: 2182, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23522.7ms, 278 PlacesBefore, 278 PlacesAfterwards, 876 TransitionsBefore, 876 TransitionsAfterwards, 6504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 1509 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1509, positive: 1509, positive conditional: 1509, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 148, positive: 148, positive conditional: 145, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 148, positive: 148, positive conditional: 145, 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: 148, positive: 148, positive conditional: 0, positive unconditional: 148, 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: 1509, positive: 1361, positive conditional: 1361, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 148, unknown conditional: 148, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2372, Positive cache size: 2316, Positive conditional cache size: 2316, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22741.9ms, 298 PlacesBefore, 298 PlacesAfterwards, 881 TransitionsBefore, 881 TransitionsAfterwards, 6302 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 949 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 949, positive: 949, positive conditional: 949, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 232, positive: 232, positive conditional: 221, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 232, positive: 232, positive conditional: 221, positive unconditional: 11, 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: 232, positive: 232, positive conditional: 0, positive unconditional: 232, 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: 949, positive: 717, positive conditional: 717, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 232, unknown conditional: 232, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2555, Positive cache size: 2499, Positive conditional cache size: 2499, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16140.8ms, 313 PlacesBefore, 313 PlacesAfterwards, 1008 TransitionsBefore, 1008 TransitionsAfterwards, 6098 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 444 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 444, positive: 444, positive conditional: 444, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 259, positive: 259, positive conditional: 251, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 259, positive: 259, positive conditional: 251, positive unconditional: 8, 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: 259, positive: 259, positive conditional: 0, positive unconditional: 259, 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: 444, positive: 185, positive conditional: 185, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 259, unknown conditional: 259, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2765, Positive cache size: 2709, Positive conditional cache size: 2709, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14707.7ms, 325 PlacesBefore, 319 PlacesAfterwards, 911 TransitionsBefore, 910 TransitionsAfterwards, 5698 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 114 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 114, positive: 114, positive conditional: 114, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 65, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 65, positive: 65, positive conditional: 65, 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: 65, positive: 65, positive conditional: 0, positive unconditional: 65, 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: 114, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 65, unknown conditional: 65, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2744, Positive cache size: 2688, Positive conditional cache size: 2688, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22949.7ms, 335 PlacesBefore, 335 PlacesAfterwards, 1048 TransitionsBefore, 1048 TransitionsAfterwards, 6640 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 728 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 728, positive: 728, positive conditional: 728, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 203, positive: 203, positive conditional: 195, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 203, positive: 203, positive conditional: 195, positive unconditional: 8, 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: 203, positive: 203, positive conditional: 0, positive unconditional: 203, 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: 728, positive: 525, positive conditional: 525, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 203, unknown conditional: 203, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2925, Positive cache size: 2869, Positive conditional cache size: 2869, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9329.8ms, 345 PlacesBefore, 343 PlacesAfterwards, 1000 TransitionsBefore, 1000 TransitionsAfterwards, 5528 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2925, Positive cache size: 2869, Positive conditional cache size: 2869, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9113.6ms, 344 PlacesBefore, 342 PlacesAfterwards, 969 TransitionsBefore, 969 TransitionsAfterwards, 5422 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2925, Positive cache size: 2869, Positive conditional cache size: 2869, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22239.5ms, 354 PlacesBefore, 347 PlacesAfterwards, 822 TransitionsBefore, 822 TransitionsAfterwards, 4892 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 27 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 8494 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8494, positive: 8494, positive conditional: 8494, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 280, positive: 280, positive conditional: 274, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 280, positive: 280, positive conditional: 274, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 280, positive: 280, positive conditional: 0, positive unconditional: 280, 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: 8494, positive: 8214, positive conditional: 8214, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 280, unknown conditional: 280, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2756, Positive cache size: 2707, Positive conditional cache size: 2707, Positive unconditional cache size: 0, Negative cache size: 49, Negative conditional cache size: 49, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14237.8ms, 346 PlacesBefore, 344 PlacesAfterwards, 788 TransitionsBefore, 788 TransitionsAfterwards, 4740 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 1015 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1015, positive: 1015, positive conditional: 1015, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 237, positive: 237, positive conditional: 233, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 237, positive: 237, positive conditional: 233, positive unconditional: 4, 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: 237, positive: 237, positive conditional: 0, positive unconditional: 237, 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: 1015, positive: 778, positive conditional: 778, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 237, unknown conditional: 237, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2913, Positive cache size: 2864, Positive conditional cache size: 2864, Positive unconditional cache size: 0, Negative cache size: 49, Negative conditional cache size: 49, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13964.1ms, 355 PlacesBefore, 355 PlacesAfterwards, 751 TransitionsBefore, 751 TransitionsAfterwards, 4652 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 197 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 197, positive: 197, positive conditional: 197, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, positive: 46, positive conditional: 45, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 46, positive: 46, positive conditional: 45, 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: 46, positive: 46, positive conditional: 0, positive unconditional: 46, 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: 197, positive: 151, positive conditional: 151, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 46, unknown conditional: 46, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2959, Positive cache size: 2910, Positive conditional cache size: 2910, Positive unconditional cache size: 0, Negative cache size: 49, Negative conditional cache size: 49, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9636.8ms, 371 PlacesBefore, 363 PlacesAfterwards, 672 TransitionsBefore, 672 TransitionsAfterwards, 3736 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, 2969 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2969, positive: 2969, positive conditional: 2969, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 327, positive: 327, positive conditional: 305, positive unconditional: 22, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 327, positive: 327, positive conditional: 305, positive unconditional: 22, 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: 327, positive: 327, positive conditional: 0, positive unconditional: 327, 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: 2969, positive: 2642, positive conditional: 2642, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 327, unknown conditional: 327, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3131, Positive cache size: 3094, Positive conditional cache size: 3094, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8606.3ms, 372 PlacesBefore, 371 PlacesAfterwards, 705 TransitionsBefore, 705 TransitionsAfterwards, 3918 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 14 TotalNumberOfCompositions, 1708 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1708, positive: 1708, positive conditional: 1708, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 365, positive: 365, positive conditional: 341, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 365, positive: 365, positive conditional: 341, positive unconditional: 24, 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: 365, positive: 365, positive conditional: 0, positive unconditional: 365, 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: 1708, positive: 1343, positive conditional: 1343, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 365, unknown conditional: 365, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3294, Positive cache size: 3262, Positive conditional cache size: 3262, Positive unconditional cache size: 0, Negative cache size: 32, Negative conditional cache size: 32, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6928.9ms, 374 PlacesBefore, 361 PlacesAfterwards, 672 TransitionsBefore, 672 TransitionsAfterwards, 3810 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 697 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 697, positive: 697, positive conditional: 697, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 107, positive: 107, positive conditional: 99, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 107, positive: 107, positive conditional: 99, positive unconditional: 8, 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: 107, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 697, positive: 590, positive conditional: 590, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 107, unknown conditional: 107, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3212, Positive cache size: 3186, Positive conditional cache size: 3186, Positive unconditional cache size: 0, Negative cache size: 26, Negative conditional cache size: 26, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7867.3ms, 364 PlacesBefore, 364 PlacesAfterwards, 790 TransitionsBefore, 790 TransitionsAfterwards, 4040 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 17 TotalNumberOfCompositions, 1964 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1964, positive: 1964, positive conditional: 1964, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 98, positive: 98, positive conditional: 94, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 98, positive: 98, positive conditional: 94, positive unconditional: 4, 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: 98, positive: 98, positive conditional: 0, positive unconditional: 98, 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: 1964, positive: 1866, positive conditional: 1866, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 98, unknown conditional: 98, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3310, Positive cache size: 3284, Positive conditional cache size: 3284, Positive unconditional cache size: 0, Negative cache size: 26, Negative conditional cache size: 26, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7879.9ms, 367 PlacesBefore, 367 PlacesAfterwards, 763 TransitionsBefore, 763 TransitionsAfterwards, 3958 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 194 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 194, positive: 194, positive conditional: 194, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 194, positive: 189, positive conditional: 189, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3315, Positive cache size: 3289, Positive conditional cache size: 3289, Positive unconditional cache size: 0, Negative cache size: 26, Negative conditional cache size: 26, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7951.5ms, 379 PlacesBefore, 379 PlacesAfterwards, 811 TransitionsBefore, 811 TransitionsAfterwards, 4018 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 463 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 463, positive: 463, positive conditional: 463, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 233, positive: 233, positive conditional: 228, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 233, positive: 233, positive conditional: 228, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 233, positive: 233, positive conditional: 0, positive unconditional: 233, 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: 463, positive: 230, positive conditional: 230, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 233, unknown conditional: 233, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3483, Positive cache size: 3457, Positive conditional cache size: 3457, Positive unconditional cache size: 0, Negative cache size: 26, Negative conditional cache size: 26, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6601.9ms, 384 PlacesBefore, 384 PlacesAfterwards, 750 TransitionsBefore, 750 TransitionsAfterwards, 3310 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 595 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 595, positive: 595, positive conditional: 595, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 115, positive: 115, positive conditional: 111, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 115, positive: 115, positive conditional: 111, positive unconditional: 4, 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: 115, positive: 115, positive conditional: 0, positive unconditional: 115, 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: 595, positive: 480, positive conditional: 480, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 115, unknown conditional: 115, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3575, Positive cache size: 3549, Positive conditional cache size: 3549, Positive unconditional cache size: 0, Negative cache size: 26, Negative conditional cache size: 26, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10655.4ms, 421 PlacesBefore, 411 PlacesAfterwards, 789 TransitionsBefore, 789 TransitionsAfterwards, 2866 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 21 TotalNumberOfCompositions, 2690 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2690, positive: 2690, positive conditional: 2690, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 453, positive: 453, positive conditional: 444, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 453, positive: 453, positive conditional: 444, positive unconditional: 9, 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: 453, positive: 453, positive conditional: 0, positive unconditional: 453, 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: 2690, positive: 2237, positive conditional: 2237, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 453, unknown conditional: 453, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3862, Positive cache size: 3838, Positive conditional cache size: 3838, Positive unconditional cache size: 0, Negative cache size: 24, Negative conditional cache size: 24, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 573.3ms, 400 PlacesBefore, 377 PlacesAfterwards, 277 TransitionsBefore, 277 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 327 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 273, positive: 267, positive conditional: 267, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 105, positive: 104, positive conditional: 101, positive unconditional: 3, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 105, positive: 104, positive conditional: 101, 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: 105, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 273, positive: 163, positive conditional: 163, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 105, unknown conditional: 105, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3941, Positive cache size: 3916, Positive conditional cache size: 3916, Positive unconditional cache size: 0, Negative cache size: 25, Negative conditional cache size: 25, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 227.8ms, 323 PlacesBefore, 283 PlacesAfterwards, 163 TransitionsBefore, 160 TransitionsAfterwards, 684 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 364 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 136, positive: 124, positive conditional: 124, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 19, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 19, 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: 21, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 136, positive: 104, positive conditional: 104, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 21, unknown conditional: 21, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3786, Positive cache size: 3763, Positive conditional cache size: 3763, Positive unconditional cache size: 0, Negative cache size: 23, Negative conditional cache size: 23, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 95.2ms, 237 PlacesBefore, 225 PlacesAfterwards, 132 TransitionsBefore, 132 TransitionsAfterwards, 586 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 170 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 158, positive: 152, positive conditional: 152, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 47, positive: 47, positive conditional: 38, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 47, positive: 47, positive conditional: 38, positive unconditional: 9, 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: 47, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 158, positive: 105, positive conditional: 105, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 47, unknown conditional: 47, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3828, Positive cache size: 3805, Positive conditional cache size: 3805, Positive unconditional cache size: 0, Negative cache size: 23, Negative conditional cache size: 23, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 239.8ms, 203 PlacesBefore, 161 PlacesAfterwards, 71 TransitionsBefore, 70 TransitionsAfterwards, 298 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 306 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 150, positive: 138, positive conditional: 138, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 42, positive: 38, positive conditional: 34, positive unconditional: 4, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 42, positive: 38, positive conditional: 34, positive unconditional: 4, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 42, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 150, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 42, unknown conditional: 42, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3034, Positive cache size: 3008, Positive conditional cache size: 3008, Positive unconditional cache size: 0, Negative cache size: 26, Negative conditional cache size: 26, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.6ms, 115 PlacesBefore, 103 PlacesAfterwards, 55 TransitionsBefore, 51 TransitionsAfterwards, 224 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 34 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 20, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 20, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 0, positive unconditional: 22, 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: 34, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2517, Positive cache size: 2502, Positive conditional cache size: 2502, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4ms, 78 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2517, Positive cache size: 2502, Positive conditional cache size: 2502, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - PositiveResult [Line: 82]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 19.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 562489.7ms, OverallIterations: 40, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 158545.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 564.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 897 SDtfs, 2365 SDslu, 566 SDs, 0 SdLazy, 13942 SolverSat, 2876 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6676.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 574 GetRequests, 68 SyntacticMatches, 35 SemanticMatches, 471 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 4594.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=25580occurred in iteration=22, InterpolantAutomatonStates: 468, 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: 28.4ms SsaConstructionTime, 186.9ms SatisfiabilityAnalysisTime, 3297.7ms InterpolantComputationTime, 1392 NumberOfCodeBlocks, 1392 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 1352 ConstructedInterpolants, 0 QuantifiedInterpolants, 8436 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 40 InterpolantComputations, 40 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...