/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 11:07:29,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 11:07:29,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 11:07:29,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 11:07:29,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 11:07:29,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 11:07:29,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 11:07:29,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 11:07:29,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 11:07:29,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 11:07:29,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 11:07:29,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 11:07:29,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 11:07:29,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 11:07:29,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 11:07:29,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 11:07:29,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 11:07:29,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 11:07:29,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 11:07:29,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 11:07:29,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 11:07:29,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 11:07:29,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 11:07:29,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 11:07:29,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-11 11:07:29,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 11:07:29,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 11:07:29,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 11:07:29,922 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-RepeatedSemanticLbe.epf [2021-06-11 11:07:29,936 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 11:07:29,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 11:07:29,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 11:07:29,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 11:07:29,937 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 11:07:29,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 11:07:29,937 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 11:07:29,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 11:07:29,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 11:07:29,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 11:07:29,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 11:07:29,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 11:07:29,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 11:07:29,938 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 11:07:29,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 11:07:29,938 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 11:07:29,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 11:07:29,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 11:07:29,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 11:07:29,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 11:07:29,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 11:07:29,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 11:07:29,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 11:07:29,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 11:07:29,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 11:07:29,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 11:07:29,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 11:07:29,939 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 11:07:29,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 11:07:29,940 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 11:07:30,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 11:07:30,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 11:07:30,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 11:07:30,188 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-11 11:07:30,189 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-11 11:07:30,189 INFO L432 ainManager$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 [2021-06-11 11:07:30,201 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-3.wvr.bpl' [2021-06-11 11:07:30,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 11:07:30,240 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-11 11:07:30,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 11:07:30,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 11:07:30,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 11:07:30,249 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 11.06 11:07:30" (1/1) ... [2021-06-11 11:07:30,255 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 11.06 11:07:30" (1/1) ... [2021-06-11 11:07:30,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 11:07:30,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 11:07:30,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 11:07:30,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 11:07:30,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:07:30" (1/1) ... [2021-06-11 11:07:30,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:07:30" (1/1) ... [2021-06-11 11:07:30,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:07:30" (1/1) ... [2021-06-11 11:07:30,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:07:30" (1/1) ... [2021-06-11 11:07:30,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:07:30" (1/1) ... [2021-06-11 11:07:30,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:07:30" (1/1) ... [2021-06-11 11:07:30,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:07:30" (1/1) ... [2021-06-11 11:07:30,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 11:07:30,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 11:07:30,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 11:07:30,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 11:07:30,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:07:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 11:07:30,338 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-11 11:07:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-11 11:07:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-11 11:07:30,339 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-11 11:07:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-11 11:07:30,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-11 11:07:30,339 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-11 11:07:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 11:07:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 11:07:30,340 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-11 11:07:30,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-11 11:07:30,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-11 11:07:30,340 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 11:07:30,485 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 11:07:30,485 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-11 11:07:30,486 INFO L202 PluginConnector]: Adding new model bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 11:07:30 BoogieIcfgContainer [2021-06-11 11:07:30,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 11:07:30,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 11:07:30,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 11:07:30,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 11:07:30,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:07:30" (1/2) ... [2021-06-11 11:07:30,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd2c4c7 and model type bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 11:07:30, skipping insertion in model container [2021-06-11 11:07:30,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 11:07:30" (2/2) ... [2021-06-11 11:07:30,490 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-3.wvr.bpl [2021-06-11 11:07:30,494 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 11:07:30,496 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 11:07:30,496 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 11:07:30,541 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-11 11:07:30,553 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 11:07:30,583 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 11:07:30,583 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 11:07:30,584 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 11:07:30,584 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 11:07:30,584 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 11:07:30,584 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 11:07:30,584 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 11:07:30,584 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 11:07:30,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 53 transitions, 130 flow [2021-06-11 11:07:30,630 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-06-11 11:07:30,631 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 11:07:30,632 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. [2021-06-11 11:07:30,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 53 transitions, 130 flow [2021-06-11 11:07:30,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 48 transitions, 114 flow [2021-06-11 11:07:30,636 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:30,645 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 48 transitions, 114 flow [2021-06-11 11:07:30,647 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 48 transitions, 114 flow [2021-06-11 11:07:30,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 48 transitions, 114 flow [2021-06-11 11:07:30,659 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-06-11 11:07:30,659 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 11:07:30,659 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. [2021-06-11 11:07:30,661 INFO L151 LiptonReduction]: Number of co-enabled transitions 1170 [2021-06-11 11:07:30,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:30,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:30,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:30,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:30,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:30,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:30,898 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-06-11 11:07:30,902 INFO L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-06-11 11:07:30,965 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-06-11 11:07:30,967 INFO L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-06-11 11:07:30,998 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-06-11 11:07:31,002 INFO L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-06-11 11:07:31,115 INFO L163 LiptonReduction]: Checked pairs total: 2728 [2021-06-11 11:07:31,115 INFO L165 LiptonReduction]: Total number of compositions: 10 [2021-06-11 11:07:31,117 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 482 [2021-06-11 11:07:31,127 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-06-11 11:07:31,128 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 11:07:31,128 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:31,128 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] [2021-06-11 11:07:31,128 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:31,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1589473928, now seen corresponding path program 1 times [2021-06-11 11:07:31,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:31,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806780867] [2021-06-11 11:07:31,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:31,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:31,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:31,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:31,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:31,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:31,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:31,336 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 11:07:31,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:31,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806780867] [2021-06-11 11:07:31,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:31,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:07:31,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115591913] [2021-06-11 11:07:31,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:07:31,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:31,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:07:31,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:07:31,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 63 [2021-06-11 11:07:31,371 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) [2021-06-11 11:07:31,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:31,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 63 [2021-06-11 11:07:31,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:31,589 INFO L129 PetriNetUnfolder]: 29/168 cut-off events. [2021-06-11 11:07:31,590 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-06-11 11:07:31,592 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. [2021-06-11 11:07:31,594 INFO L132 encePairwiseOnDemand]: 55/63 looper letters, 21 selfloop transitions, 15 changer transitions 2/68 dead transitions. [2021-06-11 11:07:31,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 68 transitions, 230 flow [2021-06-11 11:07:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:07:31,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:07:31,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 622 transitions. [2021-06-11 11:07:31,638 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8975468975468975 [2021-06-11 11:07:31,638 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 622 transitions. [2021-06-11 11:07:31,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 622 transitions. [2021-06-11 11:07:31,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:31,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 622 transitions. [2021-06-11 11:07:31,647 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) [2021-06-11 11:07:31,651 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) [2021-06-11 11:07:31,652 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) [2021-06-11 11:07:31,653 INFO L185 Difference]: Start difference. First operand has 48 places, 38 transitions, 94 flow. Second operand 11 states and 622 transitions. [2021-06-11 11:07:31,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 68 transitions, 230 flow [2021-06-11 11:07:31,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 218 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-11 11:07:31,657 INFO L241 Difference]: Finished difference. Result has 56 places, 54 transitions, 174 flow [2021-06-11 11:07:31,658 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} [2021-06-11 11:07:31,659 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2021-06-11 11:07:31,659 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:31,659 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 54 transitions, 174 flow [2021-06-11 11:07:31,660 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 54 transitions, 174 flow [2021-06-11 11:07:31,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 54 transitions, 174 flow [2021-06-11 11:07:31,667 INFO L129 PetriNetUnfolder]: 9/112 cut-off events. [2021-06-11 11:07:31,667 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-06-11 11:07:31,667 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. [2021-06-11 11:07:31,668 INFO L151 LiptonReduction]: Number of co-enabled transitions 978 [2021-06-11 11:07:31,681 INFO L163 LiptonReduction]: Checked pairs total: 1233 [2021-06-11 11:07:31,682 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:31,682 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 11:07:31,683 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 54 transitions, 174 flow [2021-06-11 11:07:31,683 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) [2021-06-11 11:07:31,683 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:31,683 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] [2021-06-11 11:07:31,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 11:07:31,683 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:31,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:31,684 INFO L82 PathProgramCache]: Analyzing trace with hash -748688888, now seen corresponding path program 2 times [2021-06-11 11:07:31,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:31,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381608514] [2021-06-11 11:07:31,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:31,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:31,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:07:31,752 INFO L142 QuantifierPusher]: treesize reduction 19, result has 57.8 percent of original size [2021-06-11 11:07:31,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 11:07:31,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:07:31,761 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-06-11 11:07:31,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:07:31,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:31,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:07:31,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:31,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:31,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381608514] [2021-06-11 11:07:31,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:31,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 11:07:31,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132968132] [2021-06-11 11:07:31,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 11:07:31,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:31,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 11:07:31,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-11 11:07:31,787 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 63 [2021-06-11 11:07:31,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 54 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 36.714285714285715) internal successors, (257), 7 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:31,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:31,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 63 [2021-06-11 11:07:31,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:32,047 INFO L129 PetriNetUnfolder]: 865/1981 cut-off events. [2021-06-11 11:07:32,047 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-06-11 11:07:32,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3806 conditions, 1981 events. 865/1981 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 13797 event pairs, 234 based on Foata normal form. 24/1915 useless extension candidates. Maximal degree in co-relation 3789. Up to 1085 conditions per place. [2021-06-11 11:07:32,057 INFO L132 encePairwiseOnDemand]: 54/63 looper letters, 51 selfloop transitions, 21 changer transitions 0/107 dead transitions. [2021-06-11 11:07:32,057 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 424 flow [2021-06-11 11:07:32,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 11:07:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 11:07:32,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 345 transitions. [2021-06-11 11:07:32,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6845238095238095 [2021-06-11 11:07:32,059 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 345 transitions. [2021-06-11 11:07:32,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 345 transitions. [2021-06-11 11:07:32,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:32,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 345 transitions. [2021-06-11 11:07:32,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 43.125) internal successors, (345), 8 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,061 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,061 INFO L185 Difference]: Start difference. First operand has 54 places, 54 transitions, 174 flow. Second operand 8 states and 345 transitions. [2021-06-11 11:07:32,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 424 flow [2021-06-11 11:07:32,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 107 transitions, 422 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-11 11:07:32,065 INFO L241 Difference]: Finished difference. Result has 64 places, 75 transitions, 298 flow [2021-06-11 11:07:32,065 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=172, 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=298, PETRI_PLACES=64, PETRI_TRANSITIONS=75} [2021-06-11 11:07:32,066 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 16 predicate places. [2021-06-11 11:07:32,066 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:32,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 75 transitions, 298 flow [2021-06-11 11:07:32,066 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 75 transitions, 298 flow [2021-06-11 11:07:32,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 75 transitions, 298 flow [2021-06-11 11:07:32,084 INFO L129 PetriNetUnfolder]: 66/391 cut-off events. [2021-06-11 11:07:32,084 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2021-06-11 11:07:32,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 391 events. 66/391 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2618 event pairs, 14 based on Foata normal form. 0/377 useless extension candidates. Maximal degree in co-relation 653. Up to 71 conditions per place. [2021-06-11 11:07:32,087 INFO L151 LiptonReduction]: Number of co-enabled transitions 1276 [2021-06-11 11:07:32,101 INFO L163 LiptonReduction]: Checked pairs total: 1126 [2021-06-11 11:07:32,102 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:32,102 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-06-11 11:07:32,102 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 75 transitions, 298 flow [2021-06-11 11:07:32,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 36.714285714285715) internal successors, (257), 7 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:32,103 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] [2021-06-11 11:07:32,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 11:07:32,103 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:32,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:32,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1341909162, now seen corresponding path program 3 times [2021-06-11 11:07:32,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:32,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502481309] [2021-06-11 11:07:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:32,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:32,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:32,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:32,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502481309] [2021-06-11 11:07:32,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:32,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 11:07:32,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876589607] [2021-06-11 11:07:32,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 11:07:32,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:32,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 11:07:32,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 11:07:32,129 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-06-11 11:07:32,130 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 75 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,130 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:32,130 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-06-11 11:07:32,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:32,165 INFO L129 PetriNetUnfolder]: 72/401 cut-off events. [2021-06-11 11:07:32,165 INFO L130 PetriNetUnfolder]: For 104/110 co-relation queries the response was YES. [2021-06-11 11:07:32,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 401 events. 72/401 cut-off events. For 104/110 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2611 event pairs, 19 based on Foata normal form. 19/406 useless extension candidates. Maximal degree in co-relation 739. Up to 60 conditions per place. [2021-06-11 11:07:32,167 INFO L132 encePairwiseOnDemand]: 59/63 looper letters, 3 selfloop transitions, 8 changer transitions 0/75 dead transitions. [2021-06-11 11:07:32,167 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 75 transitions, 320 flow [2021-06-11 11:07:32,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 11:07:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 11:07:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2021-06-11 11:07:32,169 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2021-06-11 11:07:32,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2021-06-11 11:07:32,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2021-06-11 11:07:32,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:32,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2021-06-11 11:07:32,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,170 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,170 INFO L185 Difference]: Start difference. First operand has 64 places, 75 transitions, 298 flow. Second operand 3 states and 172 transitions. [2021-06-11 11:07:32,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 75 transitions, 320 flow [2021-06-11 11:07:32,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 320 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 11:07:32,174 INFO L241 Difference]: Finished difference. Result has 67 places, 75 transitions, 326 flow [2021-06-11 11:07:32,175 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=298, 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=326, PETRI_PLACES=67, PETRI_TRANSITIONS=75} [2021-06-11 11:07:32,175 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 19 predicate places. [2021-06-11 11:07:32,175 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:32,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 75 transitions, 326 flow [2021-06-11 11:07:32,176 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 75 transitions, 326 flow [2021-06-11 11:07:32,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 75 transitions, 326 flow [2021-06-11 11:07:32,197 INFO L129 PetriNetUnfolder]: 73/426 cut-off events. [2021-06-11 11:07:32,197 INFO L130 PetriNetUnfolder]: For 139/139 co-relation queries the response was YES. [2021-06-11 11:07:32,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 866 conditions, 426 events. 73/426 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2858 event pairs, 23 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 803. Up to 68 conditions per place. [2021-06-11 11:07:32,201 INFO L151 LiptonReduction]: Number of co-enabled transitions 1194 [2021-06-11 11:07:32,217 INFO L163 LiptonReduction]: Checked pairs total: 931 [2021-06-11 11:07:32,217 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:32,217 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-06-11 11:07:32,218 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 75 transitions, 326 flow [2021-06-11 11:07:32,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:32,221 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] [2021-06-11 11:07:32,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 11:07:32,224 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:32,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:32,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1063808832, now seen corresponding path program 4 times [2021-06-11 11:07:32,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:32,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620881219] [2021-06-11 11:07:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:32,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:32,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:32,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:32,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:32,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620881219] [2021-06-11 11:07:32,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:32,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 11:07:32,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689828961] [2021-06-11 11:07:32,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 11:07:32,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:32,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 11:07:32,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 11:07:32,252 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-06-11 11:07:32,252 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 75 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,252 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:32,252 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-06-11 11:07:32,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:32,283 INFO L129 PetriNetUnfolder]: 81/459 cut-off events. [2021-06-11 11:07:32,283 INFO L130 PetriNetUnfolder]: For 206/209 co-relation queries the response was YES. [2021-06-11 11:07:32,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 995 conditions, 459 events. 81/459 cut-off events. For 206/209 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3040 event pairs, 26 based on Foata normal form. 11/454 useless extension candidates. Maximal degree in co-relation 937. Up to 62 conditions per place. [2021-06-11 11:07:32,285 INFO L132 encePairwiseOnDemand]: 59/63 looper letters, 3 selfloop transitions, 9 changer transitions 0/75 dead transitions. [2021-06-11 11:07:32,285 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 75 transitions, 350 flow [2021-06-11 11:07:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 11:07:32,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 11:07:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2021-06-11 11:07:32,286 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2021-06-11 11:07:32,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2021-06-11 11:07:32,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2021-06-11 11:07:32,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:32,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2021-06-11 11:07:32,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,288 INFO L185 Difference]: Start difference. First operand has 67 places, 75 transitions, 326 flow. Second operand 3 states and 172 transitions. [2021-06-11 11:07:32,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 75 transitions, 350 flow [2021-06-11 11:07:32,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 75 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 11:07:32,291 INFO L241 Difference]: Finished difference. Result has 68 places, 75 transitions, 341 flow [2021-06-11 11:07:32,291 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=310, 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=341, PETRI_PLACES=68, PETRI_TRANSITIONS=75} [2021-06-11 11:07:32,291 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2021-06-11 11:07:32,291 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:32,291 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 75 transitions, 341 flow [2021-06-11 11:07:32,291 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 75 transitions, 341 flow [2021-06-11 11:07:32,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 75 transitions, 341 flow [2021-06-11 11:07:32,329 INFO L129 PetriNetUnfolder]: 80/462 cut-off events. [2021-06-11 11:07:32,330 INFO L130 PetriNetUnfolder]: For 169/170 co-relation queries the response was YES. [2021-06-11 11:07:32,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 462 events. 80/462 cut-off events. For 169/170 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3136 event pairs, 29 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 915. Up to 66 conditions per place. [2021-06-11 11:07:32,333 INFO L151 LiptonReduction]: Number of co-enabled transitions 1140 [2021-06-11 11:07:32,347 INFO L163 LiptonReduction]: Checked pairs total: 747 [2021-06-11 11:07:32,347 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:32,347 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-06-11 11:07:32,348 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 75 transitions, 341 flow [2021-06-11 11:07:32,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:32,348 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] [2021-06-11 11:07:32,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 11:07:32,348 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:32,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:32,348 INFO L82 PathProgramCache]: Analyzing trace with hash -2124262280, now seen corresponding path program 5 times [2021-06-11 11:07:32,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:32,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623634598] [2021-06-11 11:07:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:32,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,421 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 11:07:32,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:32,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623634598] [2021-06-11 11:07:32,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:32,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:07:32,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602693290] [2021-06-11 11:07:32,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:07:32,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:32,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:07:32,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:07:32,430 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 63 [2021-06-11 11:07:32,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 75 transitions, 341 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) [2021-06-11 11:07:32,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:32,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 63 [2021-06-11 11:07:32,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:32,574 INFO L129 PetriNetUnfolder]: 108/638 cut-off events. [2021-06-11 11:07:32,574 INFO L130 PetriNetUnfolder]: For 266/273 co-relation queries the response was YES. [2021-06-11 11:07:32,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 638 events. 108/638 cut-off events. For 266/273 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4674 event pairs, 33 based on Foata normal form. 6/629 useless extension candidates. Maximal degree in co-relation 1367. Up to 81 conditions per place. [2021-06-11 11:07:32,577 INFO L132 encePairwiseOnDemand]: 55/63 looper letters, 30 selfloop transitions, 22 changer transitions 2/105 dead transitions. [2021-06-11 11:07:32,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 105 transitions, 568 flow [2021-06-11 11:07:32,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:07:32,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:07:32,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 622 transitions. [2021-06-11 11:07:32,579 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8975468975468975 [2021-06-11 11:07:32,579 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 622 transitions. [2021-06-11 11:07:32,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 622 transitions. [2021-06-11 11:07:32,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:32,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 622 transitions. [2021-06-11 11:07:32,581 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) [2021-06-11 11:07:32,582 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) [2021-06-11 11:07:32,582 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) [2021-06-11 11:07:32,582 INFO L185 Difference]: Start difference. First operand has 68 places, 75 transitions, 341 flow. Second operand 11 states and 622 transitions. [2021-06-11 11:07:32,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 105 transitions, 568 flow [2021-06-11 11:07:32,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 105 transitions, 550 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 11:07:32,586 INFO L241 Difference]: Finished difference. Result has 81 places, 90 transitions, 479 flow [2021-06-11 11:07:32,586 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=479, PETRI_PLACES=81, PETRI_TRANSITIONS=90} [2021-06-11 11:07:32,586 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 33 predicate places. [2021-06-11 11:07:32,586 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:32,588 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 90 transitions, 479 flow [2021-06-11 11:07:32,588 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 90 transitions, 479 flow [2021-06-11 11:07:32,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 90 transitions, 479 flow [2021-06-11 11:07:32,614 INFO L129 PetriNetUnfolder]: 81/560 cut-off events. [2021-06-11 11:07:32,615 INFO L130 PetriNetUnfolder]: For 250/257 co-relation queries the response was YES. [2021-06-11 11:07:32,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1266 conditions, 560 events. 81/560 cut-off events. For 250/257 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4115 event pairs, 29 based on Foata normal form. 3/551 useless extension candidates. Maximal degree in co-relation 1224. Up to 74 conditions per place. [2021-06-11 11:07:32,619 INFO L151 LiptonReduction]: Number of co-enabled transitions 1264 [2021-06-11 11:07:32,633 INFO L163 LiptonReduction]: Checked pairs total: 780 [2021-06-11 11:07:32,633 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:32,633 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-06-11 11:07:32,634 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 90 transitions, 479 flow [2021-06-11 11:07:32,634 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) [2021-06-11 11:07:32,634 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:32,635 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] [2021-06-11 11:07:32,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 11:07:32,635 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:32,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:32,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1715106346, now seen corresponding path program 6 times [2021-06-11 11:07:32,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:32,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820974969] [2021-06-11 11:07:32,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:32,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:07:32,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:32,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:07:32,713 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:07:32,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:32,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:32,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:32,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820974969] [2021-06-11 11:07:32,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:32,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:07:32,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855632765] [2021-06-11 11:07:32,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:07:32,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:32,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:07:32,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:07:32,739 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 63 [2021-06-11 11:07:32,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 90 transitions, 479 flow. Second operand has 9 states, 9 states have (on average 36.111111111111114) internal successors, (325), 9 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:32,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:32,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 63 [2021-06-11 11:07:32,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:33,223 INFO L129 PetriNetUnfolder]: 1869/4449 cut-off events. [2021-06-11 11:07:33,224 INFO L130 PetriNetUnfolder]: For 2385/2432 co-relation queries the response was YES. [2021-06-11 11:07:33,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11646 conditions, 4449 events. 1869/4449 cut-off events. For 2385/2432 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 37388 event pairs, 452 based on Foata normal form. 36/4270 useless extension candidates. Maximal degree in co-relation 11603. Up to 1666 conditions per place. [2021-06-11 11:07:33,254 INFO L132 encePairwiseOnDemand]: 50/63 looper letters, 92 selfloop transitions, 63 changer transitions 0/205 dead transitions. [2021-06-11 11:07:33,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 205 transitions, 1179 flow [2021-06-11 11:07:33,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:07:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:07:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 500 transitions. [2021-06-11 11:07:33,256 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7215007215007215 [2021-06-11 11:07:33,256 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 500 transitions. [2021-06-11 11:07:33,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 500 transitions. [2021-06-11 11:07:33,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:33,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 500 transitions. [2021-06-11 11:07:33,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 45.45454545454545) internal successors, (500), 11 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:33,258 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) [2021-06-11 11:07:33,258 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) [2021-06-11 11:07:33,258 INFO L185 Difference]: Start difference. First operand has 79 places, 90 transitions, 479 flow. Second operand 11 states and 500 transitions. [2021-06-11 11:07:33,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 205 transitions, 1179 flow [2021-06-11 11:07:33,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 205 transitions, 1165 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-06-11 11:07:33,275 INFO L241 Difference]: Finished difference. Result has 96 places, 141 transitions, 945 flow [2021-06-11 11:07:33,275 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=945, PETRI_PLACES=96, PETRI_TRANSITIONS=141} [2021-06-11 11:07:33,275 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 48 predicate places. [2021-06-11 11:07:33,275 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:33,275 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 141 transitions, 945 flow [2021-06-11 11:07:33,275 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 141 transitions, 945 flow [2021-06-11 11:07:33,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 141 transitions, 945 flow [2021-06-11 11:07:33,389 INFO L129 PetriNetUnfolder]: 451/1824 cut-off events. [2021-06-11 11:07:33,389 INFO L130 PetriNetUnfolder]: For 1760/1799 co-relation queries the response was YES. [2021-06-11 11:07:33,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5170 conditions, 1824 events. 451/1824 cut-off events. For 1760/1799 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16711 event pairs, 80 based on Foata normal form. 15/1763 useless extension candidates. Maximal degree in co-relation 4959. Up to 381 conditions per place. [2021-06-11 11:07:33,410 INFO L151 LiptonReduction]: Number of co-enabled transitions 2064 [2021-06-11 11:07:33,446 INFO L163 LiptonReduction]: Checked pairs total: 1311 [2021-06-11 11:07:33,447 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:33,447 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-06-11 11:07:33,447 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 141 transitions, 945 flow [2021-06-11 11:07:33,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 36.111111111111114) internal successors, (325), 9 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:33,447 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:33,448 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] [2021-06-11 11:07:33,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 11:07:33,448 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:33,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:33,448 INFO L82 PathProgramCache]: Analyzing trace with hash -507622920, now seen corresponding path program 7 times [2021-06-11 11:07:33,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:33,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042573890] [2021-06-11 11:07:33,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:33,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:33,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:33,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:33,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:33,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:33,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:33,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:33,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:33,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:33,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:33,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:33,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:33,496 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 11:07:33,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:33,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042573890] [2021-06-11 11:07:33,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:33,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:07:33,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87930329] [2021-06-11 11:07:33,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:07:33,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:33,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:07:33,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:07:33,507 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 63 [2021-06-11 11:07:33,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 141 transitions, 945 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) [2021-06-11 11:07:33,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:33,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 63 [2021-06-11 11:07:33,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:33,770 INFO L129 PetriNetUnfolder]: 521/2138 cut-off events. [2021-06-11 11:07:33,770 INFO L130 PetriNetUnfolder]: For 2408/2486 co-relation queries the response was YES. [2021-06-11 11:07:33,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6738 conditions, 2138 events. 521/2138 cut-off events. For 2408/2486 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 20012 event pairs, 114 based on Foata normal form. 46/2090 useless extension candidates. Maximal degree in co-relation 6459. Up to 467 conditions per place. [2021-06-11 11:07:33,785 INFO L132 encePairwiseOnDemand]: 55/63 looper letters, 32 selfloop transitions, 31 changer transitions 0/165 dead transitions. [2021-06-11 11:07:33,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 165 transitions, 1199 flow [2021-06-11 11:07:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:07:33,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:07:33,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 622 transitions. [2021-06-11 11:07:33,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8975468975468975 [2021-06-11 11:07:33,787 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 622 transitions. [2021-06-11 11:07:33,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 622 transitions. [2021-06-11 11:07:33,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:33,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 622 transitions. [2021-06-11 11:07:33,788 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) [2021-06-11 11:07:33,789 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) [2021-06-11 11:07:33,790 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) [2021-06-11 11:07:33,790 INFO L185 Difference]: Start difference. First operand has 96 places, 141 transitions, 945 flow. Second operand 11 states and 622 transitions. [2021-06-11 11:07:33,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 165 transitions, 1199 flow [2021-06-11 11:07:33,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 165 transitions, 1173 flow, removed 13 selfloop flow, removed 0 redundant places. [2021-06-11 11:07:33,803 INFO L241 Difference]: Finished difference. Result has 111 places, 153 transitions, 1100 flow [2021-06-11 11:07:33,803 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=919, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1100, PETRI_PLACES=111, PETRI_TRANSITIONS=153} [2021-06-11 11:07:33,803 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 63 predicate places. [2021-06-11 11:07:33,804 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:33,804 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 153 transitions, 1100 flow [2021-06-11 11:07:33,804 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 153 transitions, 1100 flow [2021-06-11 11:07:33,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 153 transitions, 1100 flow [2021-06-11 11:07:33,912 INFO L129 PetriNetUnfolder]: 507/2071 cut-off events. [2021-06-11 11:07:33,912 INFO L130 PetriNetUnfolder]: For 2771/2823 co-relation queries the response was YES. [2021-06-11 11:07:33,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6340 conditions, 2071 events. 507/2071 cut-off events. For 2771/2823 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 19606 event pairs, 89 based on Foata normal form. 17/1988 useless extension candidates. Maximal degree in co-relation 6203. Up to 449 conditions per place. [2021-06-11 11:07:33,936 INFO L151 LiptonReduction]: Number of co-enabled transitions 2208 [2021-06-11 11:07:33,965 INFO L163 LiptonReduction]: Checked pairs total: 1372 [2021-06-11 11:07:33,965 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:33,965 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 161 [2021-06-11 11:07:33,966 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 153 transitions, 1100 flow [2021-06-11 11:07:33,966 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) [2021-06-11 11:07:33,966 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:33,966 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] [2021-06-11 11:07:33,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 11:07:33,967 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:33,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:33,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1704214434, now seen corresponding path program 8 times [2021-06-11 11:07:33,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:33,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67154246] [2021-06-11 11:07:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:34,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:34,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:07:34,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:34,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:34,037 INFO L142 QuantifierPusher]: treesize reduction 20, result has 59.2 percent of original size [2021-06-11 11:07:34,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 11:07:34,042 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-06-11 11:07:34,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:07:34,050 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-06-11 11:07:34,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:07:34,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:34,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:07:34,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:34,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:07:34,068 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-06-11 11:07:34,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 11:07:34,077 INFO L142 QuantifierPusher]: treesize reduction 11, result has 72.5 percent of original size [2021-06-11 11:07:34,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 11:07:34,099 INFO L142 QuantifierPusher]: treesize reduction 27, result has 48.1 percent of original size [2021-06-11 11:07:34,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 11:07:34,120 INFO L142 QuantifierPusher]: treesize reduction 36, result has 44.6 percent of original size [2021-06-11 11:07:34,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 11:07:34,143 INFO L142 QuantifierPusher]: treesize reduction 24, result has 36.8 percent of original size [2021-06-11 11:07:34,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:07:34,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:34,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:34,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:34,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67154246] [2021-06-11 11:07:34,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:34,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 11:07:34,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849307330] [2021-06-11 11:07:34,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 11:07:34,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:34,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 11:07:34,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-06-11 11:07:34,155 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 63 [2021-06-11 11:07:34,155 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 153 transitions, 1100 flow. Second operand has 12 states, 12 states have (on average 35.583333333333336) internal successors, (427), 12 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:34,155 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:34,155 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 63 [2021-06-11 11:07:34,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:34,981 INFO L129 PetriNetUnfolder]: 2466/6236 cut-off events. [2021-06-11 11:07:34,981 INFO L130 PetriNetUnfolder]: For 11501/11687 co-relation queries the response was YES. [2021-06-11 11:07:35,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22040 conditions, 6236 events. 2466/6236 cut-off events. For 11501/11687 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 57431 event pairs, 474 based on Foata normal form. 51/6076 useless extension candidates. Maximal degree in co-relation 21767. Up to 2713 conditions per place. [2021-06-11 11:07:35,085 INFO L132 encePairwiseOnDemand]: 47/63 looper letters, 128 selfloop transitions, 83 changer transitions 0/273 dead transitions. [2021-06-11 11:07:35,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 273 transitions, 2206 flow [2021-06-11 11:07:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:07:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:07:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 482 transitions. [2021-06-11 11:07:35,102 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6955266955266955 [2021-06-11 11:07:35,102 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 482 transitions. [2021-06-11 11:07:35,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 482 transitions. [2021-06-11 11:07:35,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:35,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 482 transitions. [2021-06-11 11:07:35,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 43.81818181818182) internal successors, (482), 11 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:35,104 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) [2021-06-11 11:07:35,104 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) [2021-06-11 11:07:35,104 INFO L185 Difference]: Start difference. First operand has 111 places, 153 transitions, 1100 flow. Second operand 11 states and 482 transitions. [2021-06-11 11:07:35,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 273 transitions, 2206 flow [2021-06-11 11:07:35,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 273 transitions, 2177 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-06-11 11:07:35,211 INFO L241 Difference]: Finished difference. Result has 126 places, 217 transitions, 1840 flow [2021-06-11 11:07:35,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=1071, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1840, PETRI_PLACES=126, PETRI_TRANSITIONS=217} [2021-06-11 11:07:35,211 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 78 predicate places. [2021-06-11 11:07:35,211 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:35,211 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 217 transitions, 1840 flow [2021-06-11 11:07:35,211 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 217 transitions, 1840 flow [2021-06-11 11:07:35,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 217 transitions, 1840 flow [2021-06-11 11:07:35,461 INFO L129 PetriNetUnfolder]: 1159/3593 cut-off events. [2021-06-11 11:07:35,461 INFO L130 PetriNetUnfolder]: For 8129/8408 co-relation queries the response was YES. [2021-06-11 11:07:35,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13449 conditions, 3593 events. 1159/3593 cut-off events. For 8129/8408 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 34566 event pairs, 187 based on Foata normal form. 60/3458 useless extension candidates. Maximal degree in co-relation 13177. Up to 866 conditions per place. [2021-06-11 11:07:35,511 INFO L151 LiptonReduction]: Number of co-enabled transitions 3450 [2021-06-11 11:07:35,657 INFO L163 LiptonReduction]: Checked pairs total: 848 [2021-06-11 11:07:35,657 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:35,657 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 446 [2021-06-11 11:07:35,657 INFO L480 AbstractCegarLoop]: Abstraction has has 126 places, 217 transitions, 1840 flow [2021-06-11 11:07:35,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 35.583333333333336) internal successors, (427), 12 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:35,658 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:35,658 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] [2021-06-11 11:07:35,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 11:07:35,658 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:35,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:35,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1405177400, now seen corresponding path program 9 times [2021-06-11 11:07:35,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:35,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370941300] [2021-06-11 11:07:35,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:35,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:35,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:35,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:35,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:35,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:35,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:35,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:35,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:35,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:35,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:35,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:35,708 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 11:07:35,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:35,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370941300] [2021-06-11 11:07:35,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:35,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:07:35,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577154468] [2021-06-11 11:07:35,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:07:35,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:35,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:07:35,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:07:35,715 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 63 [2021-06-11 11:07:35,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 217 transitions, 1840 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) [2021-06-11 11:07:35,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:35,716 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 63 [2021-06-11 11:07:35,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:36,265 INFO L129 PetriNetUnfolder]: 1399/4388 cut-off events. [2021-06-11 11:07:36,266 INFO L130 PetriNetUnfolder]: For 10907/11390 co-relation queries the response was YES. [2021-06-11 11:07:36,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18152 conditions, 4388 events. 1399/4388 cut-off events. For 10907/11390 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 43321 event pairs, 206 based on Foata normal form. 184/4366 useless extension candidates. Maximal degree in co-relation 17806. Up to 1028 conditions per place. [2021-06-11 11:07:36,299 INFO L132 encePairwiseOnDemand]: 55/63 looper letters, 40 selfloop transitions, 31 changer transitions 0/237 dead transitions. [2021-06-11 11:07:36,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 237 transitions, 2107 flow [2021-06-11 11:07:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:07:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:07:36,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 622 transitions. [2021-06-11 11:07:36,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8975468975468975 [2021-06-11 11:07:36,301 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 622 transitions. [2021-06-11 11:07:36,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 622 transitions. [2021-06-11 11:07:36,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:36,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 622 transitions. [2021-06-11 11:07:36,302 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) [2021-06-11 11:07:36,303 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) [2021-06-11 11:07:36,303 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) [2021-06-11 11:07:36,303 INFO L185 Difference]: Start difference. First operand has 126 places, 217 transitions, 1840 flow. Second operand 11 states and 622 transitions. [2021-06-11 11:07:36,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 237 transitions, 2107 flow [2021-06-11 11:07:36,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 237 transitions, 2061 flow, removed 20 selfloop flow, removed 1 redundant places. [2021-06-11 11:07:36,367 INFO L241 Difference]: Finished difference. Result has 140 places, 228 transitions, 1981 flow [2021-06-11 11:07:36,367 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=1794, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1981, PETRI_PLACES=140, PETRI_TRANSITIONS=228} [2021-06-11 11:07:36,367 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 92 predicate places. [2021-06-11 11:07:36,367 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:36,367 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 228 transitions, 1981 flow [2021-06-11 11:07:36,367 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 228 transitions, 1981 flow [2021-06-11 11:07:36,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 228 transitions, 1981 flow [2021-06-11 11:07:36,671 INFO L129 PetriNetUnfolder]: 1307/4099 cut-off events. [2021-06-11 11:07:36,671 INFO L130 PetriNetUnfolder]: For 10417/10797 co-relation queries the response was YES. [2021-06-11 11:07:36,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16092 conditions, 4099 events. 1307/4099 cut-off events. For 10417/10797 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 40637 event pairs, 187 based on Foata normal form. 115/4006 useless extension candidates. Maximal degree in co-relation 15754. Up to 1045 conditions per place. [2021-06-11 11:07:36,732 INFO L151 LiptonReduction]: Number of co-enabled transitions 3706 [2021-06-11 11:07:36,822 INFO L163 LiptonReduction]: Checked pairs total: 848 [2021-06-11 11:07:36,823 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:36,823 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 456 [2021-06-11 11:07:36,823 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 228 transitions, 1981 flow [2021-06-11 11:07:36,823 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) [2021-06-11 11:07:36,823 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:36,823 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] [2021-06-11 11:07:36,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 11:07:36,824 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:36,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:36,824 INFO L82 PathProgramCache]: Analyzing trace with hash -875653954, now seen corresponding path program 10 times [2021-06-11 11:07:36,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:36,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000206060] [2021-06-11 11:07:36,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:36,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:36,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:07:36,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:36,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:36,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:36,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:07:36,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:36,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 11:07:36,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:36,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 11:07:36,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:36,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 11:07:36,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:36,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 11:07:36,952 INFO L142 QuantifierPusher]: treesize reduction 9, result has 71.9 percent of original size [2021-06-11 11:07:36,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 11:07:36,974 INFO L142 QuantifierPusher]: treesize reduction 12, result has 63.6 percent of original size [2021-06-11 11:07:36,975 INFO L147 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size 16 [2021-06-11 11:07:36,990 INFO L142 QuantifierPusher]: treesize reduction 29, result has 42.0 percent of original size [2021-06-11 11:07:36,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 11:07:37,012 INFO L142 QuantifierPusher]: treesize reduction 34, result has 44.3 percent of original size [2021-06-11 11:07:37,013 INFO L147 QuantifierPusher]: treesize reduction 5, result has 81.5 percent of original size 22 [2021-06-11 11:07:37,037 INFO L142 QuantifierPusher]: treesize reduction 23, result has 43.9 percent of original size [2021-06-11 11:07:37,038 INFO L147 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size 13 [2021-06-11 11:07:37,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:37,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:37,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:37,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000206060] [2021-06-11 11:07:37,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:37,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-11 11:07:37,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073275839] [2021-06-11 11:07:37,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 11:07:37,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:37,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 11:07:37,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-11 11:07:37,057 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 63 [2021-06-11 11:07:37,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 228 transitions, 1981 flow. Second operand has 13 states, 13 states have (on average 35.46153846153846) internal successors, (461), 13 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:37,058 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:37,058 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 63 [2021-06-11 11:07:37,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:37,941 INFO L129 PetriNetUnfolder]: 2783/7422 cut-off events. [2021-06-11 11:07:37,941 INFO L130 PetriNetUnfolder]: For 23812/24682 co-relation queries the response was YES. [2021-06-11 11:07:37,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31814 conditions, 7422 events. 2783/7422 cut-off events. For 23812/24682 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 72692 event pairs, 517 based on Foata normal form. 434/7635 useless extension candidates. Maximal degree in co-relation 31347. Up to 2869 conditions per place. [2021-06-11 11:07:38,008 INFO L132 encePairwiseOnDemand]: 50/63 looper letters, 141 selfloop transitions, 110 changer transitions 2/326 dead transitions. [2021-06-11 11:07:38,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 326 transitions, 3168 flow [2021-06-11 11:07:38,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 11:07:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 11:07:38,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 552 transitions. [2021-06-11 11:07:38,010 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.673992673992674 [2021-06-11 11:07:38,010 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 552 transitions. [2021-06-11 11:07:38,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 552 transitions. [2021-06-11 11:07:38,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:38,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 552 transitions. [2021-06-11 11:07:38,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 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) [2021-06-11 11:07:38,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 63.0) internal successors, (882), 14 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:38,013 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 63.0) internal successors, (882), 14 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:38,013 INFO L185 Difference]: Start difference. First operand has 140 places, 228 transitions, 1981 flow. Second operand 13 states and 552 transitions. [2021-06-11 11:07:38,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 326 transitions, 3168 flow [2021-06-11 11:07:38,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 326 transitions, 3135 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-06-11 11:07:38,181 INFO L241 Difference]: Finished difference. Result has 157 places, 270 transitions, 2716 flow [2021-06-11 11:07:38,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=1948, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2716, PETRI_PLACES=157, PETRI_TRANSITIONS=270} [2021-06-11 11:07:38,181 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 109 predicate places. [2021-06-11 11:07:38,181 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:38,181 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 270 transitions, 2716 flow [2021-06-11 11:07:38,182 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 270 transitions, 2716 flow [2021-06-11 11:07:38,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 270 transitions, 2716 flow [2021-06-11 11:07:38,522 INFO L129 PetriNetUnfolder]: 1419/4765 cut-off events. [2021-06-11 11:07:38,522 INFO L130 PetriNetUnfolder]: For 17790/18225 co-relation queries the response was YES. [2021-06-11 11:07:38,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20963 conditions, 4765 events. 1419/4765 cut-off events. For 17790/18225 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 49966 event pairs, 129 based on Foata normal form. 145/4728 useless extension candidates. Maximal degree in co-relation 20478. Up to 1108 conditions per place. [2021-06-11 11:07:38,585 INFO L151 LiptonReduction]: Number of co-enabled transitions 4150 [2021-06-11 11:07:38,719 INFO L163 LiptonReduction]: Checked pairs total: 940 [2021-06-11 11:07:38,719 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:38,719 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 538 [2021-06-11 11:07:38,719 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 270 transitions, 2716 flow [2021-06-11 11:07:38,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 35.46153846153846) internal successors, (461), 13 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:38,719 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:38,720 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] [2021-06-11 11:07:38,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 11:07:38,720 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:38,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:38,720 INFO L82 PathProgramCache]: Analyzing trace with hash 432580618, now seen corresponding path program 11 times [2021-06-11 11:07:38,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:38,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10495772] [2021-06-11 11:07:38,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:38,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:38,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:38,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:38,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:38,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:38,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:38,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:38,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:38,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:38,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:38,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:38,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:38,773 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 11:07:38,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:38,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:38,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10495772] [2021-06-11 11:07:38,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:38,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:07:38,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034240884] [2021-06-11 11:07:38,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:07:38,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:38,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:07:38,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:07:38,781 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 63 [2021-06-11 11:07:38,781 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 270 transitions, 2716 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) [2021-06-11 11:07:38,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:38,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 63 [2021-06-11 11:07:38,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:39,429 INFO L129 PetriNetUnfolder]: 1499/5044 cut-off events. [2021-06-11 11:07:39,430 INFO L130 PetriNetUnfolder]: For 19768/20523 co-relation queries the response was YES. [2021-06-11 11:07:39,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23990 conditions, 5044 events. 1499/5044 cut-off events. For 19768/20523 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 52693 event pairs, 184 based on Foata normal form. 300/5134 useless extension candidates. Maximal degree in co-relation 23406. Up to 1189 conditions per place. [2021-06-11 11:07:39,474 INFO L132 encePairwiseOnDemand]: 55/63 looper letters, 50 selfloop transitions, 39 changer transitions 0/297 dead transitions. [2021-06-11 11:07:39,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 297 transitions, 3114 flow [2021-06-11 11:07:39,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:07:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:07:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 622 transitions. [2021-06-11 11:07:39,475 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8975468975468975 [2021-06-11 11:07:39,475 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 622 transitions. [2021-06-11 11:07:39,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 622 transitions. [2021-06-11 11:07:39,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:39,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 622 transitions. [2021-06-11 11:07:39,477 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) [2021-06-11 11:07:39,477 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) [2021-06-11 11:07:39,478 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) [2021-06-11 11:07:39,478 INFO L185 Difference]: Start difference. First operand has 157 places, 270 transitions, 2716 flow. Second operand 11 states and 622 transitions. [2021-06-11 11:07:39,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 297 transitions, 3114 flow [2021-06-11 11:07:39,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 297 transitions, 3028 flow, removed 36 selfloop flow, removed 1 redundant places. [2021-06-11 11:07:39,603 INFO L241 Difference]: Finished difference. Result has 169 places, 284 transitions, 2867 flow [2021-06-11 11:07:39,603 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=2630, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2867, PETRI_PLACES=169, PETRI_TRANSITIONS=284} [2021-06-11 11:07:39,603 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 121 predicate places. [2021-06-11 11:07:39,603 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:39,603 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 284 transitions, 2867 flow [2021-06-11 11:07:39,604 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 284 transitions, 2867 flow [2021-06-11 11:07:39,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 284 transitions, 2867 flow [2021-06-11 11:07:39,842 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([109] L32-->L33: Formula: (= v_i1_1 v_i_1) InVars {i=v_i_1} OutVars{i1=v_i1_1, i=v_i_1} AuxVars[] AssignedVars[i1][8], [Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 246#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 250#(and (<= 1 i2) (<= i3 0) (<= 2 i) (<= i 2) (<= i2 1) (<= 0 i3)), Black: 252#(and (<= 1 i2) (<= i3 0) (<= 2 i) (<= 2 i1) (<= i 2) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 254#(and (<= 1 i2) (<= i3 0) (<= i2 1) (<= 0 i3)), 263#true, Black: 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), 15#L33true, Black: 135#(and (<= 2 i) (<= i 2) (<= 1 i3) (<= i3 1) (<= i1 0) (<= 0 i1)), Black: 121#(and (<= i 0) (<= 0 i)), Black: 122#(and (<= i1 0) (<= 0 i1)), 148#true, Black: 272#(and (< 0 n3) (< n3 (+ n2 1))), Black: 273#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (< n1 n2)), Black: 275#(and (< 0 n3) (< n3 (+ n2 1)) (not (= n3 n2))), Black: 277#(and (<= 0 n3) (<= n3 0) (<= 0 n2) (or (<= (+ n3 2) n1) (<= 1 n2))), Black: 279#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (not (= n3 n2)) (< n1 n2)), Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), 32#L77true, Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), 292#(and (<= i2 0) (<= 0 i2)), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), Black: 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), 40#thread2EXITtrue, Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), 43#L68true, Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), Black: 301#(and (<= i2 0) (<= 1 i) (<= 0 i2) (<= i 1)), 67#true, Black: 192#(and (<= 1 i2) (<= 2 i) (<= i3 2) (<= i 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 194#(and (<= 1 i2) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 186#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, 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)), 95#true, Black: 224#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 220#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 97#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 111#e2, Black: 116#e3, 119#true]) [2021-06-11 11:07:39,842 INFO L384 tUnfolder$Statistics]: this new event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,842 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,842 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,842 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,842 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([136] L67-->L68: Formula: (= v_i_8 (+ v_i3_2 1)) InVars {i3=v_i3_2} OutVars{i=v_i_8, i3=v_i3_2} AuxVars[] AssignedVars[i][21], [Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 246#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 250#(and (<= 1 i2) (<= i3 0) (<= 2 i) (<= i 2) (<= i2 1) (<= 0 i3)), Black: 252#(and (<= 1 i2) (<= i3 0) (<= 2 i) (<= 2 i1) (<= i 2) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 254#(and (<= 1 i2) (<= i3 0) (<= i2 1) (<= 0 i3)), 263#true, 15#L33true, Black: 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 135#(and (<= 2 i) (<= i 2) (<= 1 i3) (<= i3 1) (<= i1 0) (<= 0 i1)), Black: 121#(and (<= i 0) (<= 0 i)), Black: 122#(and (<= i1 0) (<= 0 i1)), 148#true, Black: 272#(and (< 0 n3) (< n3 (+ n2 1))), Black: 273#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (< n1 n2)), Black: 275#(and (< 0 n3) (< n3 (+ n2 1)) (not (= n3 n2))), Black: 277#(and (<= 0 n3) (<= n3 0) (<= 0 n2) (or (<= (+ n3 2) n1) (<= 1 n2))), Black: 279#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (not (= n3 n2)) (< n1 n2)), Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), 32#L77true, Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), Black: 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), 40#thread2EXITtrue, Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), 43#L68true, Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), 309#(and (<= i2 0) (<= i1 1) (<= 0 i2) (<= 1 i1)), Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), Black: 301#(and (<= i2 0) (<= 1 i) (<= 0 i2) (<= i 1)), 67#true, Black: 192#(and (<= 1 i2) (<= 2 i) (<= i3 2) (<= i 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 194#(and (<= 1 i2) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 186#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, 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)), 95#true, Black: 224#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 220#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 97#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 111#e2, Black: 116#e3, 119#true]) [2021-06-11 11:07:39,842 INFO L384 tUnfolder$Statistics]: this new event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,842 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([135] L66-->L67: Formula: (= v_i3_1 v_i_7) InVars {i=v_i_7} OutVars{i=v_i_7, i3=v_i3_1} AuxVars[] AssignedVars[i3][103], [Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 246#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 250#(and (<= 1 i2) (<= i3 0) (<= 2 i) (<= i 2) (<= i2 1) (<= 0 i3)), Black: 252#(and (<= 1 i2) (<= i3 0) (<= 2 i) (<= 2 i1) (<= i 2) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 254#(and (<= 1 i2) (<= i3 0) (<= i2 1) (<= 0 i3)), 263#true, Black: 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 135#(and (<= 2 i) (<= i 2) (<= 1 i3) (<= i3 1) (<= i1 0) (<= 0 i1)), Black: 121#(and (<= i 0) (<= 0 i)), Black: 122#(and (<= i1 0) (<= 0 i1)), 148#true, Black: 272#(and (< 0 n3) (< n3 (+ n2 1))), Black: 273#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (< n1 n2)), Black: 275#(and (< 0 n3) (< n3 (+ n2 1)) (not (= n3 n2))), Black: 277#(and (<= 0 n3) (<= n3 0) (<= 0 n2) (or (<= (+ n3 2) n1) (<= 1 n2))), Black: 279#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (not (= n3 n2)) (< n1 n2)), Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), 31#L34true, 32#L77true, Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), Black: 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), 40#thread2EXITtrue, Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), 307#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i3 2) (<= i 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), 59#L67true, Black: 301#(and (<= i2 0) (<= 1 i) (<= 0 i2) (<= i 1)), 67#true, Black: 192#(and (<= 1 i2) (<= 2 i) (<= i3 2) (<= i 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 194#(and (<= 1 i2) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 186#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, 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)), 95#true, Black: 224#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 220#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 97#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 111#e2, Black: 116#e3, 119#true]) [2021-06-11 11:07:39,843 INFO L384 tUnfolder$Statistics]: this new event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([110] L33-->L34: Formula: (= v_i_2 (+ v_i1_2 1)) InVars {i1=v_i1_2} OutVars{i=v_i_2, i1=v_i1_2} AuxVars[] AssignedVars[i][166], [Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 246#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 250#(and (<= 1 i2) (<= i3 0) (<= 2 i) (<= i 2) (<= i2 1) (<= 0 i3)), Black: 252#(and (<= 1 i2) (<= i3 0) (<= 2 i) (<= 2 i1) (<= i 2) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 254#(and (<= 1 i2) (<= i3 0) (<= i2 1) (<= 0 i3)), 263#true, Black: 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 135#(and (<= 2 i) (<= i 2) (<= 1 i3) (<= i3 1) (<= i1 0) (<= 0 i1)), Black: 121#(and (<= i 0) (<= 0 i)), Black: 122#(and (<= i1 0) (<= 0 i1)), 148#true, Black: 272#(and (< 0 n3) (< n3 (+ n2 1))), Black: 273#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (< n1 n2)), Black: 275#(and (< 0 n3) (< n3 (+ n2 1)) (not (= n3 n2))), Black: 277#(and (<= 0 n3) (<= n3 0) (<= 0 n2) (or (<= (+ n3 2) n1) (<= 1 n2))), Black: 279#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (not (= n3 n2)) (< n1 n2)), Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), 31#L34true, 32#L77true, Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), Black: 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), 40#thread2EXITtrue, Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), 59#L67true, Black: 301#(and (<= i2 0) (<= 1 i) (<= 0 i2) (<= i 1)), 67#true, Black: 192#(and (<= 1 i2) (<= 2 i) (<= i3 2) (<= i 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 194#(and (<= 1 i2) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 186#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, 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)), 95#true, Black: 224#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 220#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 97#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 111#e2, Black: 116#e3, 119#true]) [2021-06-11 11:07:39,843 INFO L384 tUnfolder$Statistics]: this new event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,843 INFO L387 tUnfolder$Statistics]: existing Event has 31 ancestors and is not cut-off event [2021-06-11 11:07:39,993 INFO L129 PetriNetUnfolder]: 1476/4914 cut-off events. [2021-06-11 11:07:39,993 INFO L130 PetriNetUnfolder]: For 18634/19179 co-relation queries the response was YES. [2021-06-11 11:07:40,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22084 conditions, 4914 events. 1476/4914 cut-off events. For 18634/19179 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 51350 event pairs, 116 based on Foata normal form. 204/4974 useless extension candidates. Maximal degree in co-relation 21557. Up to 1168 conditions per place. [2021-06-11 11:07:40,050 INFO L151 LiptonReduction]: Number of co-enabled transitions 4416 [2021-06-11 11:07:40,152 INFO L163 LiptonReduction]: Checked pairs total: 943 [2021-06-11 11:07:40,152 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:40,152 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 549 [2021-06-11 11:07:40,152 INFO L480 AbstractCegarLoop]: Abstraction has has 169 places, 284 transitions, 2867 flow [2021-06-11 11:07:40,153 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) [2021-06-11 11:07:40,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:40,153 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] [2021-06-11 11:07:40,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 11:07:40,153 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:40,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:40,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1100407820, now seen corresponding path program 12 times [2021-06-11 11:07:40,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:40,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356531153] [2021-06-11 11:07:40,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:40,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:40,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 11:07:40,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:40,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:07:40,187 INFO L142 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size [2021-06-11 11:07:40,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:40,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:40,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:40,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:40,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:40,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:40,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:07:40,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:40,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:07:40,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:40,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:07:40,222 INFO L142 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size [2021-06-11 11:07:40,222 INFO L147 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size 21 [2021-06-11 11:07:40,243 INFO L142 QuantifierPusher]: treesize reduction 6, result has 80.0 percent of original size [2021-06-11 11:07:40,243 INFO L147 QuantifierPusher]: treesize reduction 7, result has 70.8 percent of original size 17 [2021-06-11 11:07:40,263 INFO L142 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size [2021-06-11 11:07:40,264 INFO L147 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size 15 [2021-06-11 11:07:40,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:40,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:07:40,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:40,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:40,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:40,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356531153] [2021-06-11 11:07:40,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:40,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-11 11:07:40,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43447231] [2021-06-11 11:07:40,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 11:07:40,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:40,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 11:07:40,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-11 11:07:40,287 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 63 [2021-06-11 11:07:40,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 284 transitions, 2867 flow. Second operand has 10 states, 10 states have (on average 35.9) internal successors, (359), 10 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:40,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:40,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 63 [2021-06-11 11:07:40,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:41,220 INFO L129 PetriNetUnfolder]: 2934/7909 cut-off events. [2021-06-11 11:07:41,220 INFO L130 PetriNetUnfolder]: For 38078/39350 co-relation queries the response was YES. [2021-06-11 11:07:41,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38524 conditions, 7909 events. 2934/7909 cut-off events. For 38078/39350 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 79210 event pairs, 727 based on Foata normal form. 189/7871 useless extension candidates. Maximal degree in co-relation 37971. Up to 4639 conditions per place. [2021-06-11 11:07:41,355 INFO L132 encePairwiseOnDemand]: 48/63 looper letters, 207 selfloop transitions, 51 changer transitions 1/346 dead transitions. [2021-06-11 11:07:41,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 346 transitions, 3947 flow [2021-06-11 11:07:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:07:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:07:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 453 transitions. [2021-06-11 11:07:41,357 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6536796536796536 [2021-06-11 11:07:41,357 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 453 transitions. [2021-06-11 11:07:41,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 453 transitions. [2021-06-11 11:07:41,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:41,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 453 transitions. [2021-06-11 11:07:41,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 41.18181818181818) internal successors, (453), 11 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:41,362 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) [2021-06-11 11:07:41,362 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) [2021-06-11 11:07:41,362 INFO L185 Difference]: Start difference. First operand has 169 places, 284 transitions, 2867 flow. Second operand 11 states and 453 transitions. [2021-06-11 11:07:41,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 346 transitions, 3947 flow [2021-06-11 11:07:41,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 346 transitions, 3823 flow, removed 28 selfloop flow, removed 9 redundant places. [2021-06-11 11:07:41,585 INFO L241 Difference]: Finished difference. Result has 177 places, 318 transitions, 3357 flow [2021-06-11 11:07:41,585 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=2743, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3357, PETRI_PLACES=177, PETRI_TRANSITIONS=318} [2021-06-11 11:07:41,585 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 129 predicate places. [2021-06-11 11:07:41,585 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:41,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 318 transitions, 3357 flow [2021-06-11 11:07:41,586 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 318 transitions, 3357 flow [2021-06-11 11:07:41,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 177 places, 318 transitions, 3357 flow [2021-06-11 11:07:41,978 INFO L129 PetriNetUnfolder]: 1619/5436 cut-off events. [2021-06-11 11:07:41,978 INFO L130 PetriNetUnfolder]: For 20851/21339 co-relation queries the response was YES. [2021-06-11 11:07:42,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24341 conditions, 5436 events. 1619/5436 cut-off events. For 20851/21339 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 58177 event pairs, 174 based on Foata normal form. 187/5431 useless extension candidates. Maximal degree in co-relation 23828. Up to 1261 conditions per place. [2021-06-11 11:07:42,055 INFO L151 LiptonReduction]: Number of co-enabled transitions 4576 [2021-06-11 11:07:42,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:42,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:42,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:42,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:42,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:42,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:42,700 INFO L163 LiptonReduction]: Checked pairs total: 2635 [2021-06-11 11:07:42,701 INFO L165 LiptonReduction]: Total number of compositions: 8 [2021-06-11 11:07:42,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1116 [2021-06-11 11:07:42,701 INFO L480 AbstractCegarLoop]: Abstraction has has 177 places, 318 transitions, 3357 flow [2021-06-11 11:07:42,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 35.9) internal successors, (359), 10 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:42,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:42,701 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] [2021-06-11 11:07:42,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 11:07:42,702 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:42,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:42,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1656964118, now seen corresponding path program 13 times [2021-06-11 11:07:42,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:42,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782346927] [2021-06-11 11:07:42,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:42,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:42,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:42,730 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-06-11 11:07:42,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:42,731 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-06-11 11:07:42,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:42,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:42,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:42,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:42,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:42,749 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-06-11 11:07:42,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:07:42,755 INFO L142 QuantifierPusher]: treesize reduction 19, result has 38.7 percent of original size [2021-06-11 11:07:42,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:07:42,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:42,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:42,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782346927] [2021-06-11 11:07:42,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:42,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 11:07:42,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883768365] [2021-06-11 11:07:42,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 11:07:42,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:42,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 11:07:42,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-11 11:07:42,762 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 71 [2021-06-11 11:07:42,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 318 transitions, 3357 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 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) [2021-06-11 11:07:42,763 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:42,763 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 71 [2021-06-11 11:07:42,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:43,345 INFO L129 PetriNetUnfolder]: 1854/4936 cut-off events. [2021-06-11 11:07:43,345 INFO L130 PetriNetUnfolder]: For 25662/25952 co-relation queries the response was YES. [2021-06-11 11:07:43,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23103 conditions, 4936 events. 1854/4936 cut-off events. For 25662/25952 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 44973 event pairs, 636 based on Foata normal form. 101/4838 useless extension candidates. Maximal degree in co-relation 22887. Up to 2689 conditions per place. [2021-06-11 11:07:43,383 INFO L132 encePairwiseOnDemand]: 59/71 looper letters, 162 selfloop transitions, 73 changer transitions 2/324 dead transitions. [2021-06-11 11:07:43,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 324 transitions, 3753 flow [2021-06-11 11:07:43,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 11:07:43,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 11:07:43,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 362 transitions. [2021-06-11 11:07:43,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7283702213279678 [2021-06-11 11:07:43,385 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 362 transitions. [2021-06-11 11:07:43,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 362 transitions. [2021-06-11 11:07:43,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:43,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 362 transitions. [2021-06-11 11:07:43,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:43,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:43,386 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:43,386 INFO L185 Difference]: Start difference. First operand has 177 places, 318 transitions, 3357 flow. Second operand 7 states and 362 transitions. [2021-06-11 11:07:43,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 324 transitions, 3753 flow [2021-06-11 11:07:43,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 324 transitions, 3700 flow, removed 23 selfloop flow, removed 2 redundant places. [2021-06-11 11:07:43,460 INFO L241 Difference]: Finished difference. Result has 181 places, 290 transitions, 3228 flow [2021-06-11 11:07:43,460 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=2803, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3228, PETRI_PLACES=181, PETRI_TRANSITIONS=290} [2021-06-11 11:07:43,461 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 133 predicate places. [2021-06-11 11:07:43,461 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:43,461 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 290 transitions, 3228 flow [2021-06-11 11:07:43,461 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 290 transitions, 3228 flow [2021-06-11 11:07:43,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 290 transitions, 3228 flow [2021-06-11 11:07:43,649 INFO L129 PetriNetUnfolder]: 750/2881 cut-off events. [2021-06-11 11:07:43,649 INFO L130 PetriNetUnfolder]: For 12149/12367 co-relation queries the response was YES. [2021-06-11 11:07:43,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12322 conditions, 2881 events. 750/2881 cut-off events. For 12149/12367 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 28278 event pairs, 163 based on Foata normal form. 59/2784 useless extension candidates. Maximal degree in co-relation 12138. Up to 662 conditions per place. [2021-06-11 11:07:43,689 INFO L151 LiptonReduction]: Number of co-enabled transitions 2844 [2021-06-11 11:07:43,745 INFO L163 LiptonReduction]: Checked pairs total: 1154 [2021-06-11 11:07:43,745 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:43,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 284 [2021-06-11 11:07:43,746 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 290 transitions, 3228 flow [2021-06-11 11:07:43,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 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) [2021-06-11 11:07:43,746 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:43,746 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] [2021-06-11 11:07:43,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-11 11:07:43,746 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:43,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:43,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1319842380, now seen corresponding path program 1 times [2021-06-11 11:07:43,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:43,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164732012] [2021-06-11 11:07:43,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:43,780 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-06-11 11:07:43,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 11:07:43,794 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-06-11 11:07:43,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:07:43,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:43,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:43,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:43,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:07:43,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:43,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:43,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:43,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:43,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:43,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:43,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:43,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:07:43,829 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-06-11 11:07:43,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:07:43,834 INFO L142 QuantifierPusher]: treesize reduction 15, result has 46.4 percent of original size [2021-06-11 11:07:43,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:07:43,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:43,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:43,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:43,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164732012] [2021-06-11 11:07:43,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:43,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-11 11:07:43,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042350984] [2021-06-11 11:07:43,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 11:07:43,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:43,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 11:07:43,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-06-11 11:07:43,847 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 71 [2021-06-11 11:07:43,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 290 transitions, 3228 flow. Second operand has 10 states, 10 states have (on average 43.9) internal successors, (439), 10 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:43,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:43,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 71 [2021-06-11 11:07:43,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:45,046 INFO L129 PetriNetUnfolder]: 2801/6996 cut-off events. [2021-06-11 11:07:45,046 INFO L130 PetriNetUnfolder]: For 43669/44288 co-relation queries the response was YES. [2021-06-11 11:07:45,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34712 conditions, 6996 events. 2801/6996 cut-off events. For 43669/44288 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 65648 event pairs, 411 based on Foata normal form. 240/6993 useless extension candidates. Maximal degree in co-relation 34459. Up to 2887 conditions per place. [2021-06-11 11:07:45,120 INFO L132 encePairwiseOnDemand]: 54/71 looper letters, 218 selfloop transitions, 225 changer transitions 20/550 dead transitions. [2021-06-11 11:07:45,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 550 transitions, 6736 flow [2021-06-11 11:07:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-11 11:07:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-11 11:07:45,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1011 transitions. [2021-06-11 11:07:45,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7119718309859155 [2021-06-11 11:07:45,122 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1011 transitions. [2021-06-11 11:07:45,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1011 transitions. [2021-06-11 11:07:45,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:45,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1011 transitions. [2021-06-11 11:07:45,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 50.55) internal successors, (1011), 20 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:45,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 71.0) internal successors, (1491), 21 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:45,125 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 71.0) internal successors, (1491), 21 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:45,126 INFO L185 Difference]: Start difference. First operand has 181 places, 290 transitions, 3228 flow. Second operand 20 states and 1011 transitions. [2021-06-11 11:07:45,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 550 transitions, 6736 flow [2021-06-11 11:07:45,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 550 transitions, 6686 flow, removed 20 selfloop flow, removed 2 redundant places. [2021-06-11 11:07:45,295 INFO L241 Difference]: Finished difference. Result has 210 places, 429 transitions, 5421 flow [2021-06-11 11:07:45,295 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=3190, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5421, PETRI_PLACES=210, PETRI_TRANSITIONS=429} [2021-06-11 11:07:45,296 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 162 predicate places. [2021-06-11 11:07:45,296 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:45,296 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 429 transitions, 5421 flow [2021-06-11 11:07:45,296 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 429 transitions, 5421 flow [2021-06-11 11:07:45,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 209 places, 429 transitions, 5421 flow [2021-06-11 11:07:45,814 INFO L129 PetriNetUnfolder]: 1532/5008 cut-off events. [2021-06-11 11:07:45,814 INFO L130 PetriNetUnfolder]: For 34776/35535 co-relation queries the response was YES. [2021-06-11 11:07:45,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25755 conditions, 5008 events. 1532/5008 cut-off events. For 34776/35535 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 52108 event pairs, 265 based on Foata normal form. 159/4921 useless extension candidates. Maximal degree in co-relation 25514. Up to 1072 conditions per place. [2021-06-11 11:07:45,913 INFO L151 LiptonReduction]: Number of co-enabled transitions 4114 [2021-06-11 11:07:46,100 INFO L163 LiptonReduction]: Checked pairs total: 1767 [2021-06-11 11:07:46,100 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:46,101 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 805 [2021-06-11 11:07:46,101 INFO L480 AbstractCegarLoop]: Abstraction has has 209 places, 429 transitions, 5421 flow [2021-06-11 11:07:46,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 43.9) internal successors, (439), 10 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:46,101 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:46,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 11:07:46,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-11 11:07:46,102 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:46,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:46,102 INFO L82 PathProgramCache]: Analyzing trace with hash 2076595700, now seen corresponding path program 2 times [2021-06-11 11:07:46,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:46,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249721173] [2021-06-11 11:07:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:46,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:46,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:46,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:46,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:46,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:46,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:46,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:46,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:46,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:46,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:46,149 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 11:07:46,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:46,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249721173] [2021-06-11 11:07:46,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:46,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 11:07:46,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717427058] [2021-06-11 11:07:46,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 11:07:46,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:46,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 11:07:46,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-11 11:07:46,156 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 71 [2021-06-11 11:07:46,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 429 transitions, 5421 flow. Second operand has 8 states, 8 states have (on average 53.875) internal successors, (431), 8 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:46,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:46,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 71 [2021-06-11 11:07:46,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:46,994 INFO L129 PetriNetUnfolder]: 1544/5150 cut-off events. [2021-06-11 11:07:46,994 INFO L130 PetriNetUnfolder]: For 36335/37470 co-relation queries the response was YES. [2021-06-11 11:07:47,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27569 conditions, 5150 events. 1544/5150 cut-off events. For 36335/37470 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 53752 event pairs, 334 based on Foata normal form. 288/5109 useless extension candidates. Maximal degree in co-relation 27296. Up to 1072 conditions per place. [2021-06-11 11:07:47,043 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 56 selfloop transitions, 31 changer transitions 14/440 dead transitions. [2021-06-11 11:07:47,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 440 transitions, 5694 flow [2021-06-11 11:07:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 11:07:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 11:07:47,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 512 transitions. [2021-06-11 11:07:47,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8012519561815337 [2021-06-11 11:07:47,045 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 512 transitions. [2021-06-11 11:07:47,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 512 transitions. [2021-06-11 11:07:47,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:47,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 512 transitions. [2021-06-11 11:07:47,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 56.888888888888886) internal successors, (512), 9 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:47,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:47,046 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:47,046 INFO L185 Difference]: Start difference. First operand has 209 places, 429 transitions, 5421 flow. Second operand 9 states and 512 transitions. [2021-06-11 11:07:47,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 440 transitions, 5694 flow [2021-06-11 11:07:47,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 440 transitions, 5438 flow, removed 116 selfloop flow, removed 4 redundant places. [2021-06-11 11:07:47,204 INFO L241 Difference]: Finished difference. Result has 216 places, 422 transitions, 5096 flow [2021-06-11 11:07:47,204 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=5165, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5096, PETRI_PLACES=216, PETRI_TRANSITIONS=422} [2021-06-11 11:07:47,205 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 168 predicate places. [2021-06-11 11:07:47,205 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:47,205 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 216 places, 422 transitions, 5096 flow [2021-06-11 11:07:47,205 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 216 places, 422 transitions, 5096 flow [2021-06-11 11:07:47,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 422 transitions, 5096 flow [2021-06-11 11:07:47,614 INFO L129 PetriNetUnfolder]: 1476/4975 cut-off events. [2021-06-11 11:07:47,614 INFO L130 PetriNetUnfolder]: For 31796/32464 co-relation queries the response was YES. [2021-06-11 11:07:47,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25103 conditions, 4975 events. 1476/4975 cut-off events. For 31796/32464 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 52081 event pairs, 260 based on Foata normal form. 141/4875 useless extension candidates. Maximal degree in co-relation 24838. Up to 1064 conditions per place. [2021-06-11 11:07:47,700 INFO L151 LiptonReduction]: Number of co-enabled transitions 4066 [2021-06-11 11:07:47,871 INFO L163 LiptonReduction]: Checked pairs total: 1719 [2021-06-11 11:07:47,871 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:47,871 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 666 [2021-06-11 11:07:47,871 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 422 transitions, 5096 flow [2021-06-11 11:07:47,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 53.875) internal successors, (431), 8 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:47,872 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:47,872 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] [2021-06-11 11:07:47,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-11 11:07:47,872 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:47,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:47,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1062343668, now seen corresponding path program 3 times [2021-06-11 11:07:47,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:47,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341962172] [2021-06-11 11:07:47,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:47,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:47,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:07:47,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:47,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:47,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:47,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:47,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:47,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 11:07:47,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:47,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:47,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:47,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:47,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:47,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:47,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:47,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:47,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:47,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:47,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:47,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341962172] [2021-06-11 11:07:47,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:47,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:07:47,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805715045] [2021-06-11 11:07:47,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:07:47,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:47,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:07:47,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:07:47,921 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 71 [2021-06-11 11:07:47,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 422 transitions, 5096 flow. Second operand has 9 states, 9 states have (on average 44.111111111111114) internal successors, (397), 9 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:47,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:47,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 71 [2021-06-11 11:07:47,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:49,070 INFO L129 PetriNetUnfolder]: 3063/7790 cut-off events. [2021-06-11 11:07:49,070 INFO L130 PetriNetUnfolder]: For 72783/73631 co-relation queries the response was YES. [2021-06-11 11:07:49,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45550 conditions, 7790 events. 3063/7790 cut-off events. For 72783/73631 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 75168 event pairs, 340 based on Foata normal form. 360/7915 useless extension candidates. Maximal degree in co-relation 45141. Up to 1656 conditions per place. [2021-06-11 11:07:49,150 INFO L132 encePairwiseOnDemand]: 55/71 looper letters, 231 selfloop transitions, 262 changer transitions 29/616 dead transitions. [2021-06-11 11:07:49,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 616 transitions, 8419 flow [2021-06-11 11:07:49,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 11:07:49,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 11:07:49,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 631 transitions. [2021-06-11 11:07:49,152 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7406103286384976 [2021-06-11 11:07:49,152 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 631 transitions. [2021-06-11 11:07:49,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 631 transitions. [2021-06-11 11:07:49,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:49,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 631 transitions. [2021-06-11 11:07:49,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.583333333333336) internal successors, (631), 12 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:49,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 71.0) internal successors, (923), 13 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:49,154 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 71.0) internal successors, (923), 13 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:49,154 INFO L185 Difference]: Start difference. First operand has 214 places, 422 transitions, 5096 flow. Second operand 12 states and 631 transitions. [2021-06-11 11:07:49,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 616 transitions, 8419 flow [2021-06-11 11:07:49,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 616 transitions, 8255 flow, removed 31 selfloop flow, removed 7 redundant places. [2021-06-11 11:07:49,436 INFO L241 Difference]: Finished difference. Result has 227 places, 486 transitions, 6903 flow [2021-06-11 11:07:49,436 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=4717, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6903, PETRI_PLACES=227, PETRI_TRANSITIONS=486} [2021-06-11 11:07:49,436 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 179 predicate places. [2021-06-11 11:07:49,436 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:49,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 486 transitions, 6903 flow [2021-06-11 11:07:49,436 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 486 transitions, 6903 flow [2021-06-11 11:07:49,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 227 places, 486 transitions, 6903 flow [2021-06-11 11:07:50,088 INFO L129 PetriNetUnfolder]: 1915/6102 cut-off events. [2021-06-11 11:07:50,088 INFO L130 PetriNetUnfolder]: For 61117/62157 co-relation queries the response was YES. [2021-06-11 11:07:50,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34717 conditions, 6102 events. 1915/6102 cut-off events. For 61117/62157 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 64418 event pairs, 375 based on Foata normal form. 204/6000 useless extension candidates. Maximal degree in co-relation 34283. Up to 1320 conditions per place. [2021-06-11 11:07:50,175 INFO L151 LiptonReduction]: Number of co-enabled transitions 4564 [2021-06-11 11:07:50,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:50,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:50,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:50,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:50,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:50,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:50,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:50,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:50,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:50,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:51,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:51,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:51,510 INFO L163 LiptonReduction]: Checked pairs total: 5617 [2021-06-11 11:07:51,510 INFO L165 LiptonReduction]: Total number of compositions: 12 [2021-06-11 11:07:51,510 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2074 [2021-06-11 11:07:51,510 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 484 transitions, 6895 flow [2021-06-11 11:07:51,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 44.111111111111114) internal successors, (397), 9 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:51,511 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:51,511 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] [2021-06-11 11:07:51,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-11 11:07:51,511 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:51,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:51,511 INFO L82 PathProgramCache]: Analyzing trace with hash 778496574, now seen corresponding path program 1 times [2021-06-11 11:07:51,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:51,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958943302] [2021-06-11 11:07:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:51,525 INFO L142 QuantifierPusher]: treesize reduction 25, result has 45.7 percent of original size [2021-06-11 11:07:51,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 11:07:51,535 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-06-11 11:07:51,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:51,537 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-06-11 11:07:51,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:51,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:51,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:51,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:51,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:51,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:51,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:51,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:51,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:51,561 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-06-11 11:07:51,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:07:51,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:51,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:51,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:51,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958943302] [2021-06-11 11:07:51,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:51,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:07:51,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18788021] [2021-06-11 11:07:51,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:07:51,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:51,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:07:51,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:07:51,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:07:51,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 484 transitions, 6895 flow. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:51,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:51,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:07:51,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:53,064 INFO L129 PetriNetUnfolder]: 3165/8256 cut-off events. [2021-06-11 11:07:53,064 INFO L130 PetriNetUnfolder]: For 107217/108208 co-relation queries the response was YES. [2021-06-11 11:07:53,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53968 conditions, 8256 events. 3165/8256 cut-off events. For 107217/108208 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 82052 event pairs, 389 based on Foata normal form. 241/8314 useless extension candidates. Maximal degree in co-relation 53530. Up to 1808 conditions per place. [2021-06-11 11:07:53,137 INFO L132 encePairwiseOnDemand]: 68/83 looper letters, 310 selfloop transitions, 287 changer transitions 4/693 dead transitions. [2021-06-11 11:07:53,137 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 693 transitions, 10851 flow [2021-06-11 11:07:53,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 11:07:53,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 11:07:53,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 759 transitions. [2021-06-11 11:07:53,138 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7620481927710844 [2021-06-11 11:07:53,138 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 759 transitions. [2021-06-11 11:07:53,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 759 transitions. [2021-06-11 11:07:53,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:53,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 759 transitions. [2021-06-11 11:07:53,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 63.25) internal successors, (759), 12 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:53,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:53,140 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:53,140 INFO L185 Difference]: Start difference. First operand has 225 places, 484 transitions, 6895 flow. Second operand 12 states and 759 transitions. [2021-06-11 11:07:53,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 693 transitions, 10851 flow [2021-06-11 11:07:53,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 693 transitions, 10706 flow, removed 72 selfloop flow, removed 1 redundant places. [2021-06-11 11:07:53,479 INFO L241 Difference]: Finished difference. Result has 243 places, 583 transitions, 9288 flow [2021-06-11 11:07:53,479 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=6824, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9288, PETRI_PLACES=243, PETRI_TRANSITIONS=583} [2021-06-11 11:07:53,480 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 195 predicate places. [2021-06-11 11:07:53,480 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:53,480 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 583 transitions, 9288 flow [2021-06-11 11:07:53,480 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 583 transitions, 9288 flow [2021-06-11 11:07:53,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 243 places, 583 transitions, 9288 flow [2021-06-11 11:07:53,975 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([134] L65-->L66: Formula: (or (= v_n2_14 0) (and (not (< v_n2_14 v_n3_13)) (not (= v_n2_14 v_n3_13)))) InVars {n2=v_n2_14, n3=v_n3_13} OutVars{n2=v_n2_14, n3=v_n3_13} AuxVars[] AssignedVars[][423], [Black: 369#(and (<= 1 n3) (<= n2 n3) (< n3 (+ n1 1))), Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 371#(and (<= 1 n3) (<= n2 n1) (< n3 (+ n1 1))), Black: 373#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (< n3 (+ n1 1))), Black: 358#(and (<= 0 n3) (<= n2 n3) (<= n3 n1)), Black: 375#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n3)), Black: 360#(and (<= 0 n3) (<= n3 n1)), 7#L30true, 263#true, Black: 377#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 361#(and (<= (+ n3 1) n1) (<= 0 n3)), Black: 362#(and (<= 1 n3) (< n3 (+ n1 1))), Black: 379#(and (<= 1 n3) (<= n2 n1) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 363#(and (<= 1 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 367#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n1)), Black: 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), 400#(and (<= 1 i) (<= i 1)), 17#L66true, 148#true, Black: 272#(and (< 0 n3) (< n3 (+ n2 1))), Black: 273#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (< n1 n2)), Black: 277#(and (<= 0 n3) (<= n3 0) (<= 0 n2) (or (<= (+ n3 2) n1) (<= 1 n2))), Black: 279#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (not (= n3 n2)) (< n1 n2)), Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), Black: 406#(and (<= 1 i3) (<= 1 i) (<= i3 1) (<= i 1)), Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), Black: 412#(and (<= 2 i1) (< 2 i) (<= i 3) (<= 1 i3) (<= i3 1) (<= i1 2)), 32#L77true, Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), Black: 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), 40#thread2EXITtrue, Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), 301#(and (<= i2 0) (<= 1 i) (<= 0 i2) (<= i 1)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), 431#(and (<= 1 n1) (<= 0 n3) (<= n2 n3)), Black: 433#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 435#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 437#(and (<= 1 n3) (<= 1 n1) (<= n2 n3)), Black: 422#(and (<= 0 n1) (<= 0 n3)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), Black: 423#(and (<= 1 n1) (<= 0 n3)), Black: 424#(and (<= 1 n3) (<= 1 n1)), 316#true, Black: 425#(and (<= n1 n3) (<= 1 n1)), Black: 427#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 429#(and (<= 0 n1) (<= 0 n3) (<= n2 n3)), 67#true, Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 459#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), 203#true, Black: 323#(and (< n2 n1) (<= 0 n3) (<= (+ n3 1) n2)), Black: 324#(and (<= 1 n3) (< n2 n1) (<= n3 n2)), Black: 325#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 452#(and (= n3 n2) (<= 0 n2)), Black: 329#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (< n2 (+ n1 1)) (or (<= n1 n2) (<= (+ n3 1) n2))), Black: 453#(and (<= n2 n3) (<= 0 n2)), Black: 454#(and (<= 0 n3) (<= 0 n2)), Black: 331#(and (<= 1 n3) (< n2 n1) (= n3 n2)), Black: 455#(and (<= 1 n3) (<= 0 n2)), Black: 456#(and (<= 1 n3) (<= 1 n2)), Black: 457#(and (< n2 (+ n3 1)) (<= 1 n2)), 342#true, Black: 461#(and (= n3 n2) (<= 1 n2)), Black: 69#(and (<= i 0) (<= 0 i)), 95#true, Black: 346#(and (<= n2 (+ n3 1)) (< 0 n2) (<= (+ n3 1) n2)), Black: 347#(and (< n3 (+ n2 1)) (< 0 n2) (<= n2 n3)), Black: 349#(and (<= n1 n2) (< 0 n2) (<= n3 n2) (<= n2 n3)), 354#true, Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 220#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 97#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 111#e2, Black: 116#e3, 119#true]) [2021-06-11 11:07:53,975 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is not cut-off event [2021-06-11 11:07:53,975 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-06-11 11:07:53,975 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-06-11 11:07:53,976 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-06-11 11:07:54,219 INFO L129 PetriNetUnfolder]: 2155/6649 cut-off events. [2021-06-11 11:07:54,219 INFO L130 PetriNetUnfolder]: For 87569/88717 co-relation queries the response was YES. [2021-06-11 11:07:54,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41672 conditions, 6649 events. 2155/6649 cut-off events. For 87569/88717 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 70541 event pairs, 403 based on Foata normal form. 208/6521 useless extension candidates. Maximal degree in co-relation 41204. Up to 1519 conditions per place. [2021-06-11 11:07:54,354 INFO L151 LiptonReduction]: Number of co-enabled transitions 5008 [2021-06-11 11:07:54,655 INFO L163 LiptonReduction]: Checked pairs total: 2867 [2021-06-11 11:07:54,655 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:54,655 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1175 [2021-06-11 11:07:54,655 INFO L480 AbstractCegarLoop]: Abstraction has has 243 places, 583 transitions, 9288 flow [2021-06-11 11:07:54,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:54,656 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:54,656 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] [2021-06-11 11:07:54,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-11 11:07:54,656 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:54,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:54,656 INFO L82 PathProgramCache]: Analyzing trace with hash 114790268, now seen corresponding path program 1 times [2021-06-11 11:07:54,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:54,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441814519] [2021-06-11 11:07:54,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:54,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:54,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:54,676 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-06-11 11:07:54,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:54,677 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-06-11 11:07:54,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:54,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:54,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:54,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:54,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:54,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:54,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:07:54,689 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-06-11 11:07:54,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:07:54,695 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-11 11:07:54,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:54,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:54,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:54,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441814519] [2021-06-11 11:07:54,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:54,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 11:07:54,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295741150] [2021-06-11 11:07:54,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 11:07:54,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:54,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 11:07:54,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-11 11:07:54,697 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:07:54,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 583 transitions, 9288 flow. Second operand has 7 states, 7 states have (on average 56.714285714285715) internal successors, (397), 7 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:54,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:54,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:07:54,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:07:56,326 INFO L129 PetriNetUnfolder]: 3379/8951 cut-off events. [2021-06-11 11:07:56,326 INFO L130 PetriNetUnfolder]: For 148425/149747 co-relation queries the response was YES. [2021-06-11 11:07:56,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63147 conditions, 8951 events. 3379/8951 cut-off events. For 148425/149747 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 91002 event pairs, 942 based on Foata normal form. 183/8899 useless extension candidates. Maximal degree in co-relation 62663. Up to 5152 conditions per place. [2021-06-11 11:07:56,423 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 488 selfloop transitions, 72 changer transitions 12/664 dead transitions. [2021-06-11 11:07:56,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 664 transitions, 11640 flow [2021-06-11 11:07:56,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 11:07:56,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 11:07:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 505 transitions. [2021-06-11 11:07:56,424 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7605421686746988 [2021-06-11 11:07:56,424 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 505 transitions. [2021-06-11 11:07:56,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 505 transitions. [2021-06-11 11:07:56,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:07:56,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 505 transitions. [2021-06-11 11:07:56,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 63.125) internal successors, (505), 8 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:56,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:56,426 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:56,426 INFO L185 Difference]: Start difference. First operand has 243 places, 583 transitions, 9288 flow. Second operand 8 states and 505 transitions. [2021-06-11 11:07:56,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 664 transitions, 11640 flow [2021-06-11 11:07:56,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 664 transitions, 11493 flow, removed 73 selfloop flow, removed 1 redundant places. [2021-06-11 11:07:56,936 INFO L241 Difference]: Finished difference. Result has 254 places, 598 transitions, 9675 flow [2021-06-11 11:07:56,937 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=9161, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9675, PETRI_PLACES=254, PETRI_TRANSITIONS=598} [2021-06-11 11:07:56,937 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 206 predicate places. [2021-06-11 11:07:56,937 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:07:56,937 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 598 transitions, 9675 flow [2021-06-11 11:07:56,937 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 598 transitions, 9675 flow [2021-06-11 11:07:56,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 254 places, 598 transitions, 9675 flow [2021-06-11 11:07:57,766 INFO L129 PetriNetUnfolder]: 2240/7083 cut-off events. [2021-06-11 11:07:57,767 INFO L130 PetriNetUnfolder]: For 93576/94706 co-relation queries the response was YES. [2021-06-11 11:07:57,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44603 conditions, 7083 events. 2240/7083 cut-off events. For 93576/94706 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 77008 event pairs, 449 based on Foata normal form. 230/6990 useless extension candidates. Maximal degree in co-relation 44130. Up to 1639 conditions per place. [2021-06-11 11:07:57,905 INFO L151 LiptonReduction]: Number of co-enabled transitions 5110 [2021-06-11 11:07:58,232 INFO L163 LiptonReduction]: Checked pairs total: 2788 [2021-06-11 11:07:58,232 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:07:58,232 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1295 [2021-06-11 11:07:58,232 INFO L480 AbstractCegarLoop]: Abstraction has has 254 places, 598 transitions, 9675 flow [2021-06-11 11:07:58,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 56.714285714285715) internal successors, (397), 7 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:58,232 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:07:58,232 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] [2021-06-11 11:07:58,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-11 11:07:58,233 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:07:58,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:07:58,233 INFO L82 PathProgramCache]: Analyzing trace with hash 69118034, now seen corresponding path program 1 times [2021-06-11 11:07:58,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:07:58,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787096039] [2021-06-11 11:07:58,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:07:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:07:58,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:58,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:58,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:58,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:07:58,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:58,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:58,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:58,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:58,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:58,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:58,269 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-11 11:07:58,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:58,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:58,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:07:58,280 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-06-11 11:07:58,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:07:58,294 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-06-11 11:07:58,295 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-06-11 11:07:58,311 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-06-11 11:07:58,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 11:07:58,323 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-06-11 11:07:58,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:07:58,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:07:58,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:07:58,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:07:58,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787096039] [2021-06-11 11:07:58,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:07:58,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-11 11:07:58,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536339750] [2021-06-11 11:07:58,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 11:07:58,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:07:58,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 11:07:58,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-11 11:07:58,332 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:07:58,332 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 598 transitions, 9675 flow. Second operand has 11 states, 11 states have (on average 55.72727272727273) internal successors, (613), 11 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:07:58,332 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:07:58,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:07:58,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:08:00,625 INFO L129 PetriNetUnfolder]: 4380/11729 cut-off events. [2021-06-11 11:08:00,625 INFO L130 PetriNetUnfolder]: For 193847/195637 co-relation queries the response was YES. [2021-06-11 11:08:00,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81691 conditions, 11729 events. 4380/11729 cut-off events. For 193847/195637 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 125541 event pairs, 609 based on Foata normal form. 527/11968 useless extension candidates. Maximal degree in co-relation 80923. Up to 2489 conditions per place. [2021-06-11 11:08:00,769 INFO L132 encePairwiseOnDemand]: 67/83 looper letters, 412 selfloop transitions, 391 changer transitions 19/914 dead transitions. [2021-06-11 11:08:00,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 914 transitions, 16371 flow [2021-06-11 11:08:00,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 11:08:00,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 11:08:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 827 transitions. [2021-06-11 11:08:00,771 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7664504170528267 [2021-06-11 11:08:00,771 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 827 transitions. [2021-06-11 11:08:00,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 827 transitions. [2021-06-11 11:08:00,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:08:00,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 827 transitions. [2021-06-11 11:08:00,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 63.61538461538461) internal successors, (827), 13 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) [2021-06-11 11:08:00,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:00,773 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:00,773 INFO L185 Difference]: Start difference. First operand has 254 places, 598 transitions, 9675 flow. Second operand 13 states and 827 transitions. [2021-06-11 11:08:00,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 914 transitions, 16371 flow [2021-06-11 11:08:01,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 914 transitions, 16258 flow, removed 23 selfloop flow, removed 2 redundant places. [2021-06-11 11:08:01,546 INFO L241 Difference]: Finished difference. Result has 274 places, 766 transitions, 13964 flow [2021-06-11 11:08:01,546 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=9588, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13964, PETRI_PLACES=274, PETRI_TRANSITIONS=766} [2021-06-11 11:08:01,547 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 226 predicate places. [2021-06-11 11:08:01,547 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:08:01,547 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 766 transitions, 13964 flow [2021-06-11 11:08:01,547 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 766 transitions, 13964 flow [2021-06-11 11:08:01,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 274 places, 766 transitions, 13964 flow [2021-06-11 11:08:02,959 INFO L129 PetriNetUnfolder]: 3389/10101 cut-off events. [2021-06-11 11:08:02,959 INFO L130 PetriNetUnfolder]: For 182141/184109 co-relation queries the response was YES. [2021-06-11 11:08:03,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70151 conditions, 10101 events. 3389/10101 cut-off events. For 182141/184109 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 113437 event pairs, 678 based on Foata normal form. 403/9994 useless extension candidates. Maximal degree in co-relation 69353. Up to 2217 conditions per place. [2021-06-11 11:08:03,181 INFO L151 LiptonReduction]: Number of co-enabled transitions 6740 [2021-06-11 11:08:03,896 INFO L163 LiptonReduction]: Checked pairs total: 6651 [2021-06-11 11:08:03,896 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:08:03,897 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2350 [2021-06-11 11:08:03,897 INFO L480 AbstractCegarLoop]: Abstraction has has 274 places, 766 transitions, 13964 flow [2021-06-11 11:08:03,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 55.72727272727273) internal successors, (613), 11 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:03,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:08:03,897 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] [2021-06-11 11:08:03,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-11 11:08:03,897 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:08:03,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:08:03,898 INFO L82 PathProgramCache]: Analyzing trace with hash -545131304, now seen corresponding path program 2 times [2021-06-11 11:08:03,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:08:03,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294498607] [2021-06-11 11:08:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:08:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:08:03,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:03,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:08:03,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:03,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:08:03,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:03,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:08:03,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:03,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:08:03,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:03,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:08:03,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:03,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:08:03,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:03,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:08:03,964 INFO L142 QuantifierPusher]: treesize reduction 11, result has 52.2 percent of original size [2021-06-11 11:08:03,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:08:03,971 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-11 11:08:03,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:03,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:03,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:03,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:08:03,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294498607] [2021-06-11 11:08:03,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:08:03,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 11:08:03,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603982163] [2021-06-11 11:08:03,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 11:08:03,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:08:03,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 11:08:03,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-11 11:08:03,972 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:08:03,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 766 transitions, 13964 flow. Second operand has 7 states, 7 states have (on average 56.714285714285715) internal successors, (397), 7 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:03,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:08:03,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:08:03,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:08:06,644 INFO L129 PetriNetUnfolder]: 4550/12197 cut-off events. [2021-06-11 11:08:06,644 INFO L130 PetriNetUnfolder]: For 275005/277646 co-relation queries the response was YES. [2021-06-11 11:08:06,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95605 conditions, 12197 events. 4550/12197 cut-off events. For 275005/277646 co-relation queries the response was YES. Maximal size of possible extension queue 686. Compared 131857 event pairs, 1056 based on Foata normal form. 446/12364 useless extension candidates. Maximal degree in co-relation 94799. Up to 7077 conditions per place. [2021-06-11 11:08:06,806 INFO L132 encePairwiseOnDemand]: 71/83 looper letters, 676 selfloop transitions, 106 changer transitions 33/907 dead transitions. [2021-06-11 11:08:06,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 907 transitions, 18180 flow [2021-06-11 11:08:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 11:08:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 11:08:06,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 505 transitions. [2021-06-11 11:08:06,807 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7605421686746988 [2021-06-11 11:08:06,807 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 505 transitions. [2021-06-11 11:08:06,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 505 transitions. [2021-06-11 11:08:06,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:08:06,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 505 transitions. [2021-06-11 11:08:06,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 63.125) internal successors, (505), 8 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:06,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:06,808 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:06,808 INFO L185 Difference]: Start difference. First operand has 274 places, 766 transitions, 13964 flow. Second operand 8 states and 505 transitions. [2021-06-11 11:08:06,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 907 transitions, 18180 flow [2021-06-11 11:08:08,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 907 transitions, 17842 flow, removed 136 selfloop flow, removed 3 redundant places. [2021-06-11 11:08:08,166 INFO L241 Difference]: Finished difference. Result has 283 places, 813 transitions, 14963 flow [2021-06-11 11:08:08,167 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=13691, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14963, PETRI_PLACES=283, PETRI_TRANSITIONS=813} [2021-06-11 11:08:08,167 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 235 predicate places. [2021-06-11 11:08:08,167 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:08:08,167 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 813 transitions, 14963 flow [2021-06-11 11:08:08,167 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 813 transitions, 14963 flow [2021-06-11 11:08:08,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 283 places, 813 transitions, 14963 flow [2021-06-11 11:08:10,066 INFO L129 PetriNetUnfolder]: 3576/10733 cut-off events. [2021-06-11 11:08:10,066 INFO L130 PetriNetUnfolder]: For 201938/203627 co-relation queries the response was YES. [2021-06-11 11:08:10,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75823 conditions, 10733 events. 3576/10733 cut-off events. For 201938/203627 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 121526 event pairs, 653 based on Foata normal form. 472/10741 useless extension candidates. Maximal degree in co-relation 75002. Up to 2379 conditions per place. [2021-06-11 11:08:10,335 INFO L151 LiptonReduction]: Number of co-enabled transitions 7014 [2021-06-11 11:08:11,429 INFO L163 LiptonReduction]: Checked pairs total: 7655 [2021-06-11 11:08:11,429 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:08:11,429 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3262 [2021-06-11 11:08:11,430 INFO L480 AbstractCegarLoop]: Abstraction has has 283 places, 813 transitions, 14963 flow [2021-06-11 11:08:11,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 56.714285714285715) internal successors, (397), 7 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:11,430 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:08:11,430 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] [2021-06-11 11:08:11,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-11 11:08:11,430 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:08:11,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:08:11,430 INFO L82 PathProgramCache]: Analyzing trace with hash -369349510, now seen corresponding path program 3 times [2021-06-11 11:08:11,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:08:11,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956967590] [2021-06-11 11:08:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:08:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:08:11,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:11,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:11,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:11,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:11,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:11,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:11,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:08:11,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956967590] [2021-06-11 11:08:11,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:08:11,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 11:08:11,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747048094] [2021-06-11 11:08:11,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 11:08:11,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:08:11,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 11:08:11,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 11:08:11,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 83 [2021-06-11 11:08:11,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 813 transitions, 14963 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:11,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:08:11,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 83 [2021-06-11 11:08:11,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:08:12,731 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([108] L31-->L32: Formula: (or (not (< v_n3_2 v_n1_8)) (= v_n3_2 0)) InVars {n3=v_n3_2, n1=v_n1_8} OutVars{n3=v_n3_2, n1=v_n1_8} AuxVars[] AssignedVars[][65], [Black: 498#(and (<= 1 n3) (< n3 n1)), Black: 502#(and (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 504#(and (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 506#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 491#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 492#(and (<= 0 n1) (<= 0 n3)), Black: 508#(and (<= 1 n3) (<= n2 n1) (< n3 n1)), 263#true, Black: 493#(and (<= 1 n1) (<= 0 n3)), Black: 510#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), 522#true, 18#L47true, Black: 528#(and (<= n1 n2) (<= 1 n1) (< n2 (+ n1 1))), Black: 530#(and (<= n1 n2) (<= 1 n1) (<= n3 n1) (< n2 (+ n1 1))), Black: 525#(and (<= n1 n2) (<= 0 n1) (<= n2 n1) (<= n3 n1)), Black: 526#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 527#(and (<= 1 n1) (<= (+ n2 1) n1) (<= n1 (+ n2 1))), 537#true, Black: 272#(and (< 0 n3) (< n3 (+ n2 1))), Black: 273#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (< n1 n2)), Black: 277#(and (<= 0 n3) (<= n3 0) (<= 0 n2) (or (<= (+ n3 2) n1) (<= 1 n2))), Black: 279#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (not (= n3 n2)) (< n1 n2)), Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), 32#L77true, Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), 50#thread3EXITtrue, 55#L32true, Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), 316#true, Black: 323#(and (< n2 n1) (<= 0 n3) (<= (+ n3 1) n2)), 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 324#(and (<= 1 n3) (< n2 n1) (<= n3 n2)), Black: 325#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 329#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (< n2 (+ n1 1)) (or (<= n1 n2) (<= (+ n3 1) n2))), Black: 331#(and (<= 1 n3) (< n2 n1) (= n3 n2)), 342#true, Black: 69#(and (<= i 0) (<= 0 i)), 95#true, Black: 346#(and (<= n2 (+ n3 1)) (< 0 n2) (<= (+ n3 1) n2)), Black: 347#(and (< n3 (+ n2 1)) (< 0 n2) (<= n2 n3)), Black: 349#(and (<= n1 n2) (< 0 n2) (<= n3 n2) (<= n2 n3)), 354#true, Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 111#e2, Black: 116#e3, 119#true, Black: 369#(and (<= 1 n3) (<= n2 n3) (< n3 (+ n1 1))), Black: 371#(and (<= 1 n3) (<= n2 n1) (< n3 (+ n1 1))), Black: 373#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (< n3 (+ n1 1))), Black: 358#(and (<= 0 n3) (<= n2 n3) (<= n3 n1)), Black: 375#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n3)), Black: 360#(and (<= 0 n3) (<= n3 n1)), Black: 377#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 361#(and (<= (+ n3 1) n1) (<= 0 n3)), Black: 362#(and (<= 1 n3) (< n3 (+ n1 1))), Black: 379#(and (<= 1 n3) (<= n2 n1) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 363#(and (<= 1 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 367#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n1)), Black: 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), 148#true, Black: 400#(and (<= 1 i) (<= i 1)), Black: 406#(and (<= 1 i3) (<= 1 i) (<= i3 1) (<= i 1)), Black: 412#(and (<= 2 i1) (< 2 i) (<= i 3) (<= 1 i3) (<= i3 1) (<= i1 2)), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), 423#(and (<= 1 n1) (<= 0 n3)), Black: 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), Black: 433#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 435#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 437#(and (<= 1 n3) (<= 1 n1) (<= n2 n3)), Black: 422#(and (<= 0 n1) (<= 0 n3)), Black: 424#(and (<= 1 n3) (<= 1 n1)), Black: 425#(and (<= n1 n3) (<= 1 n1)), Black: 427#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 429#(and (<= 0 n1) (<= 0 n3) (<= n2 n3)), Black: 431#(and (<= 1 n1) (<= 0 n3) (<= n2 n3)), 454#(and (<= 0 n3) (<= 0 n2)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, Black: 452#(and (= n3 n2) (<= 0 n2)), Black: 453#(and (<= n2 n3) (<= 0 n2)), Black: 455#(and (<= 1 n3) (<= 0 n2)), Black: 456#(and (<= 1 n3) (<= 1 n2)), Black: 457#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 459#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), Black: 461#(and (= n3 n2) (<= 1 n2)), Black: 481#(and (= n3 n2) (<= 1 n2)), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 476#(and (= n3 n2) (<= 0 n2)), Black: 477#(and (<= n2 n3) (<= 0 n2)), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 478#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 220#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 479#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), 500#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), 246#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3))]) [2021-06-11 11:08:12,731 INFO L384 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2021-06-11 11:08:12,731 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-06-11 11:08:12,731 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-06-11 11:08:12,731 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-06-11 11:08:13,410 INFO L129 PetriNetUnfolder]: 3044/9792 cut-off events. [2021-06-11 11:08:13,411 INFO L130 PetriNetUnfolder]: For 182421/184078 co-relation queries the response was YES. [2021-06-11 11:08:13,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68650 conditions, 9792 events. 3044/9792 cut-off events. For 182421/184078 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 112264 event pairs, 671 based on Foata normal form. 381/9631 useless extension candidates. Maximal degree in co-relation 67858. Up to 2143 conditions per place. [2021-06-11 11:08:13,516 INFO L132 encePairwiseOnDemand]: 79/83 looper letters, 3 selfloop transitions, 35 changer transitions 0/769 dead transitions. [2021-06-11 11:08:13,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 769 transitions, 14194 flow [2021-06-11 11:08:13,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 11:08:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 11:08:13,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2021-06-11 11:08:13,517 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9317269076305221 [2021-06-11 11:08:13,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2021-06-11 11:08:13,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2021-06-11 11:08:13,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:08:13,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2021-06-11 11:08:13,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:13,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:13,518 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:13,518 INFO L185 Difference]: Start difference. First operand has 283 places, 813 transitions, 14963 flow. Second operand 3 states and 232 transitions. [2021-06-11 11:08:13,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 769 transitions, 14194 flow [2021-06-11 11:08:14,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 769 transitions, 14047 flow, removed 67 selfloop flow, removed 1 redundant places. [2021-06-11 11:08:14,294 INFO L241 Difference]: Finished difference. Result has 285 places, 769 transitions, 14080 flow [2021-06-11 11:08:14,294 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=13971, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=769, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=734, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=14080, PETRI_PLACES=285, PETRI_TRANSITIONS=769} [2021-06-11 11:08:14,294 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 237 predicate places. [2021-06-11 11:08:14,295 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:08:14,295 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 769 transitions, 14080 flow [2021-06-11 11:08:14,295 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 769 transitions, 14080 flow [2021-06-11 11:08:14,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 285 places, 769 transitions, 14080 flow [2021-06-11 11:08:15,326 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([108] L31-->L32: Formula: (or (not (< v_n3_2 v_n1_8)) (= v_n3_2 0)) InVars {n3=v_n3_2, n1=v_n1_8} OutVars{n3=v_n3_2, n1=v_n1_8} AuxVars[] AssignedVars[][716], [Black: 498#(and (<= 1 n3) (< n3 n1)), Black: 502#(and (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 504#(and (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 506#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 491#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 492#(and (<= 0 n1) (<= 0 n3)), Black: 508#(and (<= 1 n3) (<= n2 n1) (< n3 n1)), 263#true, Black: 493#(and (<= 1 n1) (<= 0 n3)), Black: 510#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), 522#true, 18#L47true, Black: 528#(and (<= n1 n2) (<= 1 n1) (< n2 (+ n1 1))), Black: 530#(and (<= n1 n2) (<= 1 n1) (<= n3 n1) (< n2 (+ n1 1))), Black: 525#(and (<= n1 n2) (<= 0 n1) (<= n2 n1) (<= n3 n1)), Black: 526#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 527#(and (<= 1 n1) (<= (+ n2 1) n1) (<= n1 (+ n2 1))), Black: 272#(and (< 0 n3) (< n3 (+ n2 1))), 537#true, Black: 273#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (< n1 n2)), Black: 277#(and (<= 0 n3) (<= n3 0) (<= 0 n2) (or (<= (+ n3 2) n1) (<= 1 n2))), Black: 279#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (not (= n3 n2)) (< n1 n2)), Black: 539#e1, Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), 32#L77true, 50#thread3EXITtrue, 55#L32true, Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), 316#true, Black: 323#(and (< n2 n1) (<= 0 n3) (<= (+ n3 1) n2)), 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 324#(and (<= 1 n3) (< n2 n1) (<= n3 n2)), Black: 325#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 329#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (< n2 (+ n1 1)) (or (<= n1 n2) (<= (+ n3 1) n2))), Black: 331#(and (<= 1 n3) (< n2 n1) (= n3 n2)), 342#true, Black: 69#(and (<= i 0) (<= 0 i)), Black: 346#(and (<= n2 (+ n3 1)) (< 0 n2) (<= (+ n3 1) n2)), 95#true, Black: 347#(and (< n3 (+ n2 1)) (< 0 n2) (<= n2 n3)), Black: 349#(and (<= n1 n2) (< 0 n2) (<= n3 n2) (<= n2 n3)), 354#true, Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 111#e2, Black: 116#e3, 119#true, Black: 369#(and (<= 1 n3) (<= n2 n3) (< n3 (+ n1 1))), Black: 371#(and (<= 1 n3) (<= n2 n1) (< n3 (+ n1 1))), Black: 373#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (< n3 (+ n1 1))), Black: 358#(and (<= 0 n3) (<= n2 n3) (<= n3 n1)), Black: 375#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n3)), Black: 360#(and (<= 0 n3) (<= n3 n1)), Black: 377#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 361#(and (<= (+ n3 1) n1) (<= 0 n3)), Black: 362#(and (<= 1 n3) (< n3 (+ n1 1))), Black: 379#(and (<= 1 n3) (<= n2 n1) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 363#(and (<= 1 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 367#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n1)), Black: 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), 148#true, Black: 400#(and (<= 1 i) (<= i 1)), Black: 406#(and (<= 1 i3) (<= 1 i) (<= i3 1) (<= i 1)), Black: 412#(and (<= 2 i1) (< 2 i) (<= i 3) (<= 1 i3) (<= i3 1) (<= i1 2)), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), 423#(and (<= 1 n1) (<= 0 n3)), Black: 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), Black: 433#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 435#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 437#(and (<= 1 n3) (<= 1 n1) (<= n2 n3)), Black: 422#(and (<= 0 n1) (<= 0 n3)), Black: 424#(and (<= 1 n3) (<= 1 n1)), Black: 425#(and (<= n1 n3) (<= 1 n1)), Black: 427#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 429#(and (<= 0 n1) (<= 0 n3) (<= n2 n3)), Black: 431#(and (<= 1 n1) (<= 0 n3) (<= n2 n3)), 454#(and (<= 0 n3) (<= 0 n2)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, Black: 452#(and (= n3 n2) (<= 0 n2)), Black: 453#(and (<= n2 n3) (<= 0 n2)), Black: 455#(and (<= 1 n3) (<= 0 n2)), Black: 456#(and (<= 1 n3) (<= 1 n2)), Black: 457#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 459#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), Black: 461#(and (= n3 n2) (<= 1 n2)), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 481#(and (= n3 n2) (<= 1 n2)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 476#(and (= n3 n2) (<= 0 n2)), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 477#(and (<= n2 n3) (<= 0 n2)), Black: 478#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 220#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 479#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), 500#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), 246#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3))]) [2021-06-11 11:08:15,326 INFO L384 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2021-06-11 11:08:15,326 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-06-11 11:08:15,326 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-06-11 11:08:15,326 INFO L387 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2021-06-11 11:08:15,785 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([108] L31-->L32: Formula: (or (not (< v_n3_2 v_n1_8)) (= v_n3_2 0)) InVars {n3=v_n3_2, n1=v_n1_8} OutVars{n3=v_n3_2, n1=v_n1_8} AuxVars[] AssignedVars[][716], [Black: 498#(and (<= 1 n3) (< n3 n1)), Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 502#(and (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 504#(and (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 506#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 491#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 492#(and (<= 0 n1) (<= 0 n3)), 263#true, Black: 508#(and (<= 1 n3) (<= n2 n1) (< n3 n1)), Black: 493#(and (<= 1 n1) (<= 0 n3)), Black: 510#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), 522#true, Black: 528#(and (<= n1 n2) (<= 1 n1) (< n2 (+ n1 1))), Black: 530#(and (<= n1 n2) (<= 1 n1) (<= n3 n1) (< n2 (+ n1 1))), Black: 525#(and (<= n1 n2) (<= 0 n1) (<= n2 n1) (<= n3 n1)), Black: 526#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 527#(and (<= 1 n1) (<= (+ n2 1) n1) (<= n1 (+ n2 1))), 537#true, Black: 272#(and (< 0 n3) (< n3 (+ n2 1))), Black: 273#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (< n1 n2)), Black: 277#(and (<= 0 n3) (<= n3 0) (<= 0 n2) (or (<= (+ n3 2) n1) (<= 1 n2))), Black: 279#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (not (= n3 n2)) (< n1 n2)), Black: 539#e1, Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), 32#L77true, Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), 292#(and (<= i2 0) (<= 0 i2)), 40#thread2EXITtrue, 50#thread3EXITtrue, 55#L32true, Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), 316#true, 67#true, Black: 323#(and (< n2 n1) (<= 0 n3) (<= (+ n3 1) n2)), Black: 324#(and (<= 1 n3) (< n2 n1) (<= n3 n2)), Black: 325#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 329#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (< n2 (+ n1 1)) (or (<= n1 n2) (<= (+ n3 1) n2))), Black: 331#(and (<= 1 n3) (< n2 n1) (= n3 n2)), 342#true, Black: 69#(and (<= i 0) (<= 0 i)), Black: 346#(and (<= n2 (+ n3 1)) (< 0 n2) (<= (+ n3 1) n2)), 95#true, Black: 347#(and (< n3 (+ n2 1)) (< 0 n2) (<= n2 n3)), Black: 349#(and (<= n1 n2) (< 0 n2) (<= n3 n2) (<= n2 n3)), Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), 367#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n1)), Black: 111#e2, Black: 116#e3, 119#true, Black: 369#(and (<= 1 n3) (<= n2 n3) (< n3 (+ n1 1))), Black: 371#(and (<= 1 n3) (<= n2 n1) (< n3 (+ n1 1))), Black: 373#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (< n3 (+ n1 1))), Black: 358#(and (<= 0 n3) (<= n2 n3) (<= n3 n1)), Black: 375#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n3)), Black: 360#(and (<= 0 n3) (<= n3 n1)), Black: 377#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 361#(and (<= (+ n3 1) n1) (<= 0 n3)), Black: 362#(and (<= 1 n3) (< n3 (+ n1 1))), Black: 379#(and (<= 1 n3) (<= n2 n1) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 363#(and (<= 1 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), 148#true, 408#(and (<= 2 i) (<= i 2) (<= 1 i3) (<= i3 1)), Black: 400#(and (<= 1 i) (<= i 1)), Black: 406#(and (<= 1 i3) (<= 1 i) (<= i3 1) (<= i 1)), Black: 412#(and (<= 2 i1) (< 2 i) (<= i 3) (<= 1 i3) (<= i3 1) (<= i1 2)), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), 423#(and (<= 1 n1) (<= 0 n3)), Black: 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), Black: 433#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 435#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 437#(and (<= 1 n3) (<= 1 n1) (<= n2 n3)), Black: 422#(and (<= 0 n1) (<= 0 n3)), Black: 424#(and (<= 1 n3) (<= 1 n1)), Black: 425#(and (<= n1 n3) (<= 1 n1)), Black: 427#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 429#(and (<= 0 n1) (<= 0 n3) (<= n2 n3)), Black: 431#(and (<= 1 n1) (<= 0 n3) (<= n2 n3)), 454#(and (<= 0 n3) (<= 0 n2)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, Black: 452#(and (= n3 n2) (<= 0 n2)), Black: 453#(and (<= n2 n3) (<= 0 n2)), Black: 455#(and (<= 1 n3) (<= 0 n2)), Black: 456#(and (<= 1 n3) (<= 1 n2)), Black: 457#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 459#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), Black: 461#(and (= n3 n2) (<= 1 n2)), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 481#(and (= n3 n2) (<= 1 n2)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 476#(and (= n3 n2) (<= 0 n2)), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 477#(and (<= n2 n3) (<= 0 n2)), Black: 478#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 220#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 479#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), 500#(and (<= 1 n1) (<= 0 n3) (<= n2 n1))]) [2021-06-11 11:08:15,786 INFO L384 tUnfolder$Statistics]: this new event has 30 ancestors and is not cut-off event [2021-06-11 11:08:15,786 INFO L387 tUnfolder$Statistics]: existing Event has 30 ancestors and is not cut-off event [2021-06-11 11:08:15,786 INFO L387 tUnfolder$Statistics]: existing Event has 30 ancestors and is not cut-off event [2021-06-11 11:08:15,786 INFO L387 tUnfolder$Statistics]: existing Event has 30 ancestors and is not cut-off event [2021-06-11 11:08:15,961 INFO L129 PetriNetUnfolder]: 3068/9653 cut-off events. [2021-06-11 11:08:15,961 INFO L130 PetriNetUnfolder]: For 177993/179422 co-relation queries the response was YES. [2021-06-11 11:08:16,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67663 conditions, 9653 events. 3068/9653 cut-off events. For 177993/179422 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 109700 event pairs, 656 based on Foata normal form. 361/9486 useless extension candidates. Maximal degree in co-relation 66897. Up to 2065 conditions per place. [2021-06-11 11:08:16,142 INFO L151 LiptonReduction]: Number of co-enabled transitions 5816 [2021-06-11 11:08:16,799 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:08:16,799 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:08:16,799 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2504 [2021-06-11 11:08:16,799 INFO L480 AbstractCegarLoop]: Abstraction has has 285 places, 769 transitions, 14080 flow [2021-06-11 11:08:16,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:16,800 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:08:16,800 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] [2021-06-11 11:08:16,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-11 11:08:16,800 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:08:16,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:08:16,800 INFO L82 PathProgramCache]: Analyzing trace with hash -395759524, now seen corresponding path program 4 times [2021-06-11 11:08:16,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:08:16,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939735959] [2021-06-11 11:08:16,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:08:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:08:16,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:16,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:08:16,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:16,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:08:16,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:16,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:08:16,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:16,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:16,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:16,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:16,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:16,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:16,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:16,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:16,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:16,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:08:16,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:16,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:16,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:08:16,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939735959] [2021-06-11 11:08:16,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:08:16,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:08:16,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219596243] [2021-06-11 11:08:16,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:08:16,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:08:16,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:08:16,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:08:16,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:08:16,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 769 transitions, 14080 flow. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:16,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:08:16,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:08:16,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:08:20,594 INFO L129 PetriNetUnfolder]: 5061/13989 cut-off events. [2021-06-11 11:08:20,594 INFO L130 PetriNetUnfolder]: For 321923/323811 co-relation queries the response was YES. [2021-06-11 11:08:20,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109832 conditions, 13989 events. 5061/13989 cut-off events. For 321923/323811 co-relation queries the response was YES. Maximal size of possible extension queue 761. Compared 156587 event pairs, 590 based on Foata normal form. 870/14438 useless extension candidates. Maximal degree in co-relation 108945. Up to 3094 conditions per place. [2021-06-11 11:08:20,861 INFO L132 encePairwiseOnDemand]: 66/83 looper letters, 568 selfloop transitions, 521 changer transitions 53/1234 dead transitions. [2021-06-11 11:08:20,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 1234 transitions, 25261 flow [2021-06-11 11:08:20,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-11 11:08:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-11 11:08:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1112 transitions. [2021-06-11 11:08:20,864 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7880935506732814 [2021-06-11 11:08:20,864 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1112 transitions. [2021-06-11 11:08:20,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1112 transitions. [2021-06-11 11:08:20,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:08:20,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1112 transitions. [2021-06-11 11:08:20,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 65.41176470588235) internal successors, (1112), 17 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:20,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 83.0) internal successors, (1494), 18 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:20,866 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 83.0) internal successors, (1494), 18 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:20,866 INFO L185 Difference]: Start difference. First operand has 285 places, 769 transitions, 14080 flow. Second operand 17 states and 1112 transitions. [2021-06-11 11:08:20,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 1234 transitions, 25261 flow [2021-06-11 11:08:22,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 1234 transitions, 25097 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 11:08:22,062 INFO L241 Difference]: Finished difference. Result has 314 places, 1015 transitions, 21230 flow [2021-06-11 11:08:22,063 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=14010, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=769, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=21230, PETRI_PLACES=314, PETRI_TRANSITIONS=1015} [2021-06-11 11:08:22,063 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 266 predicate places. [2021-06-11 11:08:22,063 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:08:22,063 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 314 places, 1015 transitions, 21230 flow [2021-06-11 11:08:22,063 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 314 places, 1015 transitions, 21230 flow [2021-06-11 11:08:22,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 314 places, 1015 transitions, 21230 flow [2021-06-11 11:08:24,554 INFO L129 PetriNetUnfolder]: 3892/12028 cut-off events. [2021-06-11 11:08:24,554 INFO L130 PetriNetUnfolder]: For 319183/321768 co-relation queries the response was YES. [2021-06-11 11:08:24,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95760 conditions, 12028 events. 3892/12028 cut-off events. For 319183/321768 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 141485 event pairs, 675 based on Foata normal form. 581/12090 useless extension candidates. Maximal degree in co-relation 94836. Up to 2766 conditions per place. [2021-06-11 11:08:24,802 INFO L151 LiptonReduction]: Number of co-enabled transitions 7596 [2021-06-11 11:08:25,696 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:08:25,696 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:08:25,696 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3633 [2021-06-11 11:08:25,697 INFO L480 AbstractCegarLoop]: Abstraction has has 314 places, 1015 transitions, 21230 flow [2021-06-11 11:08:25,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:25,697 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:08:25,697 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] [2021-06-11 11:08:25,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-11 11:08:25,697 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:08:25,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:08:25,697 INFO L82 PathProgramCache]: Analyzing trace with hash -55904020, now seen corresponding path program 5 times [2021-06-11 11:08:25,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:08:25,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268765348] [2021-06-11 11:08:25,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:08:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:08:25,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:25,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:08:25,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:25,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:08:25,728 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-06-11 11:08:25,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:25,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:25,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:08:25,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:25,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:08:25,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:25,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:25,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:25,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:25,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:25,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:25,762 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-06-11 11:08:25,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:08:25,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:25,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:08:25,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268765348] [2021-06-11 11:08:25,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:08:25,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-11 11:08:25,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525481224] [2021-06-11 11:08:25,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 11:08:25,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:08:25,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 11:08:25,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-11 11:08:25,772 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:08:25,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 1015 transitions, 21230 flow. Second operand has 10 states, 10 states have (on average 55.9) internal successors, (559), 10 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:25,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:08:25,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:08:25,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:08:31,059 INFO L129 PetriNetUnfolder]: 5505/15567 cut-off events. [2021-06-11 11:08:31,059 INFO L130 PetriNetUnfolder]: For 481527/484313 co-relation queries the response was YES. [2021-06-11 11:08:31,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134913 conditions, 15567 events. 5505/15567 cut-off events. For 481527/484313 co-relation queries the response was YES. Maximal size of possible extension queue 905. Compared 180819 event pairs, 679 based on Foata normal form. 1086/16197 useless extension candidates. Maximal degree in co-relation 133936. Up to 3500 conditions per place. [2021-06-11 11:08:31,258 INFO L132 encePairwiseOnDemand]: 64/83 looper letters, 652 selfloop transitions, 804 changer transitions 31/1579 dead transitions. [2021-06-11 11:08:31,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 1579 transitions, 35820 flow [2021-06-11 11:08:31,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-11 11:08:31,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-11 11:08:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1267 transitions. [2021-06-11 11:08:31,260 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7632530120481927 [2021-06-11 11:08:31,260 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1267 transitions. [2021-06-11 11:08:31,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1267 transitions. [2021-06-11 11:08:31,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:08:31,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1267 transitions. [2021-06-11 11:08:31,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 63.35) internal successors, (1267), 20 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:31,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 83.0) internal successors, (1743), 21 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:31,263 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 83.0) internal successors, (1743), 21 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:31,263 INFO L185 Difference]: Start difference. First operand has 314 places, 1015 transitions, 21230 flow. Second operand 20 states and 1267 transitions. [2021-06-11 11:08:31,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 1579 transitions, 35820 flow [2021-06-11 11:08:33,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 1579 transitions, 34475 flow, removed 633 selfloop flow, removed 2 redundant places. [2021-06-11 11:08:33,592 INFO L241 Difference]: Finished difference. Result has 348 places, 1307 transitions, 29734 flow [2021-06-11 11:08:33,593 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=20388, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1006, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=541, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=29734, PETRI_PLACES=348, PETRI_TRANSITIONS=1307} [2021-06-11 11:08:33,593 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 300 predicate places. [2021-06-11 11:08:33,593 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:08:33,593 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 348 places, 1307 transitions, 29734 flow [2021-06-11 11:08:33,593 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 348 places, 1307 transitions, 29734 flow [2021-06-11 11:08:33,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 348 places, 1307 transitions, 29734 flow [2021-06-11 11:08:36,822 INFO L129 PetriNetUnfolder]: 4554/14141 cut-off events. [2021-06-11 11:08:36,822 INFO L130 PetriNetUnfolder]: For 449931/452484 co-relation queries the response was YES. [2021-06-11 11:08:37,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119319 conditions, 14141 events. 4554/14141 cut-off events. For 449931/452484 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 171131 event pairs, 722 based on Foata normal form. 671/14259 useless extension candidates. Maximal degree in co-relation 118352. Up to 2814 conditions per place. [2021-06-11 11:08:37,317 INFO L151 LiptonReduction]: Number of co-enabled transitions 9224 [2021-06-11 11:08:38,777 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:08:38,777 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:08:38,777 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5184 [2021-06-11 11:08:38,777 INFO L480 AbstractCegarLoop]: Abstraction has has 348 places, 1307 transitions, 29734 flow [2021-06-11 11:08:38,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 55.9) internal successors, (559), 10 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:38,778 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:08:38,778 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 11:08:38,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-11 11:08:38,778 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:08:38,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:08:38,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1048377366, now seen corresponding path program 6 times [2021-06-11 11:08:38,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:08:38,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122247156] [2021-06-11 11:08:38,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:08:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:08:38,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:38,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:08:38,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:38,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:08:38,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:38,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:08:38,808 INFO L142 QuantifierPusher]: treesize reduction 19, result has 60.4 percent of original size [2021-06-11 11:08:38,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 11:08:38,810 INFO L142 QuantifierPusher]: treesize reduction 19, result has 60.4 percent of original size [2021-06-11 11:08:38,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 11:08:38,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:38,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:08:38,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:38,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:08:38,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-06-11 11:08:38,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:08:38,832 INFO L142 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size [2021-06-11 11:08:38,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:38,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:38,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:38,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:08:38,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122247156] [2021-06-11 11:08:38,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:08:38,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 11:08:38,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857726370] [2021-06-11 11:08:38,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 11:08:38,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:08:38,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 11:08:38,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-11 11:08:38,835 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:08:38,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 1307 transitions, 29734 flow. Second operand has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:38,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:08:38,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:08:38,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:08:44,868 INFO L129 PetriNetUnfolder]: 5531/15924 cut-off events. [2021-06-11 11:08:44,868 INFO L130 PetriNetUnfolder]: For 599121/602271 co-relation queries the response was YES. [2021-06-11 11:08:45,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147969 conditions, 15924 events. 5531/15924 cut-off events. For 599121/602271 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 187506 event pairs, 1170 based on Foata normal form. 448/15906 useless extension candidates. Maximal degree in co-relation 146970. Up to 9143 conditions per place. [2021-06-11 11:08:45,120 INFO L132 encePairwiseOnDemand]: 73/83 looper letters, 1221 selfloop transitions, 82 changer transitions 36/1431 dead transitions. [2021-06-11 11:08:45,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 1431 transitions, 35383 flow [2021-06-11 11:08:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 11:08:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 11:08:45,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 384 transitions. [2021-06-11 11:08:45,121 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7710843373493976 [2021-06-11 11:08:45,121 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 384 transitions. [2021-06-11 11:08:45,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 384 transitions. [2021-06-11 11:08:45,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:08:45,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 384 transitions. [2021-06-11 11:08:45,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 64.0) internal successors, (384), 6 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:45,122 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) [2021-06-11 11:08:45,122 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) [2021-06-11 11:08:45,123 INFO L185 Difference]: Start difference. First operand has 348 places, 1307 transitions, 29734 flow. Second operand 6 states and 384 transitions. [2021-06-11 11:08:45,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 1431 transitions, 35383 flow [2021-06-11 11:08:49,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1431 transitions, 34462 flow, removed 460 selfloop flow, removed 1 redundant places. [2021-06-11 11:08:49,148 INFO L241 Difference]: Finished difference. Result has 355 places, 1324 transitions, 29533 flow [2021-06-11 11:08:49,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=28957, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=29533, PETRI_PLACES=355, PETRI_TRANSITIONS=1324} [2021-06-11 11:08:49,149 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 307 predicate places. [2021-06-11 11:08:49,149 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:08:49,149 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 355 places, 1324 transitions, 29533 flow [2021-06-11 11:08:49,149 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 355 places, 1324 transitions, 29533 flow [2021-06-11 11:08:49,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 355 places, 1324 transitions, 29533 flow [2021-06-11 11:08:52,352 INFO L129 PetriNetUnfolder]: 4605/14302 cut-off events. [2021-06-11 11:08:52,352 INFO L130 PetriNetUnfolder]: For 439941/442390 co-relation queries the response was YES. [2021-06-11 11:08:52,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119372 conditions, 14302 events. 4605/14302 cut-off events. For 439941/442390 co-relation queries the response was YES. Maximal size of possible extension queue 847. Compared 173352 event pairs, 761 based on Foata normal form. 657/14393 useless extension candidates. Maximal degree in co-relation 118876. Up to 2823 conditions per place. [2021-06-11 11:08:52,693 INFO L151 LiptonReduction]: Number of co-enabled transitions 9278 [2021-06-11 11:08:54,113 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:08:54,114 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:08:54,114 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4965 [2021-06-11 11:08:54,114 INFO L480 AbstractCegarLoop]: Abstraction has has 355 places, 1324 transitions, 29533 flow [2021-06-11 11:08:54,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:54,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:08:54,114 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] [2021-06-11 11:08:54,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-11 11:08:54,114 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:08:54,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:08:54,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1439667246, now seen corresponding path program 2 times [2021-06-11 11:08:54,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:08:54,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894660020] [2021-06-11 11:08:54,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:08:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:08:54,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:54,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:08:54,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:54,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:08:54,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:54,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:08:54,171 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 11:08:54,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 11:08:54,175 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:08:54,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:54,181 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:08:54,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:54,186 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:08:54,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:54,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:54,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:08:54,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:08:54,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:08:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:08:54,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894660020] [2021-06-11 11:08:54,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:08:54,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:08:54,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763610529] [2021-06-11 11:08:54,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:08:54,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:08:54,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:08:54,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:08:54,200 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:08:54,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 1324 transitions, 29533 flow. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:54,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:08:54,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:08:54,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:08:59,752 INFO L129 PetriNetUnfolder]: 4886/14390 cut-off events. [2021-06-11 11:08:59,752 INFO L130 PetriNetUnfolder]: For 511191/513887 co-relation queries the response was YES. [2021-06-11 11:08:59,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130935 conditions, 14390 events. 4886/14390 cut-off events. For 511191/513887 co-relation queries the response was YES. Maximal size of possible extension queue 906. Compared 168653 event pairs, 830 based on Foata normal form. 684/14629 useless extension candidates. Maximal degree in co-relation 130373. Up to 3054 conditions per place. [2021-06-11 11:08:59,971 INFO L132 encePairwiseOnDemand]: 70/83 looper letters, 696 selfloop transitions, 518 changer transitions 85/1391 dead transitions. [2021-06-11 11:08:59,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 1391 transitions, 33544 flow [2021-06-11 11:08:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 11:08:59,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 11:08:59,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 579 transitions. [2021-06-11 11:08:59,973 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7751004016064257 [2021-06-11 11:08:59,973 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 579 transitions. [2021-06-11 11:08:59,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 579 transitions. [2021-06-11 11:08:59,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:08:59,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 579 transitions. [2021-06-11 11:08:59,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 64.33333333333333) internal successors, (579), 9 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:59,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:59,974 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:08:59,974 INFO L185 Difference]: Start difference. First operand has 355 places, 1324 transitions, 29533 flow. Second operand 9 states and 579 transitions. [2021-06-11 11:08:59,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 1391 transitions, 33544 flow [2021-06-11 11:09:03,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 1391 transitions, 33413 flow, removed 55 selfloop flow, removed 2 redundant places. [2021-06-11 11:09:03,155 INFO L241 Difference]: Finished difference. Result has 363 places, 1199 transitions, 27725 flow [2021-06-11 11:09:03,155 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=28202, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=755, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=27725, PETRI_PLACES=363, PETRI_TRANSITIONS=1199} [2021-06-11 11:09:03,155 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 315 predicate places. [2021-06-11 11:09:03,155 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:09:03,155 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 363 places, 1199 transitions, 27725 flow [2021-06-11 11:09:03,156 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 363 places, 1199 transitions, 27725 flow [2021-06-11 11:09:03,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 362 places, 1199 transitions, 27725 flow [2021-06-11 11:09:05,022 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[][903], [Black: 498#(and (<= 1 n3) (< n3 n1)), Black: 500#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 502#(and (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 504#(and (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 506#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 491#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 508#(and (<= 1 n3) (<= n2 n1) (< n3 n1)), 263#true, Black: 493#(and (<= 1 n1) (<= 0 n3)), Black: 510#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), 10#thread1EXITtrue, 522#true, Black: 528#(and (<= n1 n2) (<= 1 n1) (< n2 (+ n1 1))), Black: 530#(and (<= n1 n2) (<= 1 n1) (<= n3 n1) (< n2 (+ n1 1))), Black: 525#(and (<= n1 n2) (<= 0 n1) (<= n2 n1) (<= n3 n1)), Black: 526#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 527#(and (<= 1 n1) (<= (+ n2 1) n1) (<= n1 (+ n2 1))), Black: 272#(and (< 0 n3) (< n3 (+ n2 1))), Black: 273#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (< n1 n2)), Black: 279#(and (< 0 n3) (<= 0 n1) (< n3 (+ n2 1)) (not (= n3 n2)) (< n1 n2)), Black: 539#e1, Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), 32#L77true, 548#(and (<= 1 n3) (<= 0 n1)), 38#L64true, 44#L49true, Black: 544#(and (<= n1 n3) (<= 0 n1) (<= n2 n1)), Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 545#(and (<= 0 n1) (<= 0 n3) (<= n2 n3) (<= n2 n1)), Black: 546#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), Black: 547#(and (<= 0 n1) (<= 0 n3)), 316#true, Black: 549#(and (<= 1 n3) (<= 1 n1)), Black: 550#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 552#(and (<= n1 n3) (<= 1 n3) (<= 0 n1) (<= n2 n1)), Black: 554#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), Black: 556#(and (<= 1 n3) (<= 0 n1) (<= n2 n3) (<= n2 n1)), Black: 558#(and (<= 1 n3) (<= 1 n1) (<= n2 n3) (<= n2 n1)), Black: 560#(and (<= 1 n3) (<= 0 n1) (<= n2 n1)), 67#true, Black: 562#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 564#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n3)), Black: 566#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n1)), 590#(and (<= 0 n1) (<= 1 n2)), Black: 323#(and (< n2 n1) (<= 0 n3) (<= (+ n3 1) n2)), Black: 324#(and (<= 1 n3) (< n2 n1) (<= n3 n2)), Black: 329#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (< n2 (+ n1 1)) (or (<= n1 n2) (<= (+ n3 1) n2))), Black: 331#(and (<= 1 n3) (< n2 n1) (= n3 n2)), 342#true, Black: 69#(and (<= i 0) (<= 0 i)), Black: 346#(and (<= n2 (+ n3 1)) (< 0 n2) (<= (+ n3 1) n2)), 95#true, Black: 347#(and (< n3 (+ n2 1)) (< 0 n2) (<= n2 n3)), Black: 349#(and (<= n1 n2) (< 0 n2) (<= n3 n2) (<= n2 n3)), 354#true, Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 608#(and (<= 0 n1) (<= n3 n2) (<= 1 n2)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 610#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= 0 n3)), Black: 612#(and (<= 1 n1) (<= n3 n2) (<= 1 n2)), Black: 614#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= n2 n3)), Black: 616#(and (<= n1 n2) (<= 0 n1) (<= n3 n2) (<= n2 n3) (<= 1 n2)), Black: 618#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2)), Black: 111#e2, Black: 588#(and (<= 0 n1) (<= n3 n2) (<= 0 n2)), Black: 589#(and (<= 0 n1) (<= 0 n2)), Black: 591#(and (<= 1 n1) (<= 1 n2)), Black: 116#e3, Black: 592#(and (< n1 (+ n2 1)) (<= 1 n1)), Black: 594#(and (<= n1 n2) (<= 0 n1) (<= n3 n2) (<= n2 n3)), Black: 596#(and (<= 0 n1) (= n3 n2) (<= 0 n2)), Black: 598#(and (<= 0 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 600#(and (<= 0 n1) (<= n3 n2) (<= 0 n3)), Black: 602#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 604#(and (<= 0 n1) (= n3 n2) (<= 1 n2)), 637#true, Black: 369#(and (<= 1 n3) (<= n2 n3) (< n3 (+ n1 1))), Black: 371#(and (<= 1 n3) (<= n2 n1) (< n3 (+ n1 1))), 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 373#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (< n3 (+ n1 1))), Black: 640#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 358#(and (<= 0 n3) (<= n2 n3) (<= n3 n1)), Black: 641#(and (<= 0 n1) (<= n2 (+ n1 1)) (<= (+ n1 1) n2)), Black: 375#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n3)), Black: 360#(and (<= 0 n3) (<= n3 n1)), Black: 642#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n2 n1)), Black: 377#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 361#(and (<= (+ n3 1) n1) (<= 0 n3)), Black: 362#(and (<= 1 n3) (< n3 (+ n1 1))), Black: 379#(and (<= 1 n3) (<= n2 n1) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 363#(and (<= 1 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 367#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n1)), 655#(and (<= n2 n3) (<= 1 n2)), Black: 650#(and (<= n3 n2) (<= n2 n3) (<= 0 n2)), 148#true, Black: 400#(and (<= 1 i) (<= i 1)), Black: 406#(and (<= 1 i3) (<= 1 i) (<= i3 1) (<= i 1)), Black: 412#(and (<= 2 i1) (< 2 i) (<= i 3) (<= 1 i3) (<= i3 1) (<= i1 2)), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), Black: 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), 429#(and (<= 0 n1) (<= 0 n3) (<= n2 n3)), Black: 433#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 435#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 437#(and (<= 1 n3) (<= 1 n1) (<= n2 n3)), 186#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 422#(and (<= 0 n1) (<= 0 n3)), Black: 423#(and (<= 1 n1) (<= 0 n3)), Black: 424#(and (<= 1 n3) (<= 1 n1)), Black: 425#(and (<= n1 n3) (<= 1 n1)), Black: 427#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 431#(and (<= 1 n1) (<= 0 n3) (<= n2 n3)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, 459#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), Black: 452#(and (= n3 n2) (<= 0 n2)), Black: 453#(and (<= n2 n3) (<= 0 n2)), Black: 454#(and (<= 0 n3) (<= 0 n2)), Black: 455#(and (<= 1 n3) (<= 0 n2)), Black: 456#(and (<= 1 n3) (<= 1 n2)), Black: 457#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 461#(and (= n3 n2) (<= 1 n2)), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 481#(and (= n3 n2) (<= 1 n2)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 476#(and (= n3 n2) (<= 0 n2)), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 477#(and (<= n2 n3) (<= 0 n2)), Black: 220#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 478#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 479#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), 492#(and (<= 0 n1) (<= 0 n3))]) [2021-06-11 11:09:05,023 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is not cut-off event [2021-06-11 11:09:05,023 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-06-11 11:09:05,023 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-06-11 11:09:05,023 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2021-06-11 11:09:05,890 INFO L129 PetriNetUnfolder]: 3929/12596 cut-off events. [2021-06-11 11:09:05,891 INFO L130 PetriNetUnfolder]: For 395365/397507 co-relation queries the response was YES. [2021-06-11 11:09:06,041 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106631 conditions, 12596 events. 3929/12596 cut-off events. For 395365/397507 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 151754 event pairs, 718 based on Foata normal form. 484/12575 useless extension candidates. Maximal degree in co-relation 105896. Up to 2452 conditions per place. [2021-06-11 11:09:06,334 INFO L151 LiptonReduction]: Number of co-enabled transitions 7966 [2021-06-11 11:09:07,892 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:09:07,893 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:09:07,893 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4738 [2021-06-11 11:09:07,894 INFO L480 AbstractCegarLoop]: Abstraction has has 362 places, 1199 transitions, 27725 flow [2021-06-11 11:09:07,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:07,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:09:07,894 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] [2021-06-11 11:09:07,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-11 11:09:07,894 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:09:07,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:09:07,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1303649066, now seen corresponding path program 3 times [2021-06-11 11:09:07,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:09:07,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382326515] [2021-06-11 11:09:07,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:09:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:09:07,946 INFO L142 QuantifierPusher]: treesize reduction 43, result has 40.3 percent of original size [2021-06-11 11:09:07,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 11:09:07,959 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-11 11:09:07,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:09:07,961 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 11:09:07,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:09:07,968 INFO L142 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size [2021-06-11 11:09:07,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:09:07,968 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-06-11 11:09:07,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:09:07,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:07,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:09:07,978 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-06-11 11:09:07,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:09:07,985 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-06-11 11:09:07,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:09:07,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:07,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:09:08,004 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-06-11 11:09:08,004 INFO L147 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size 8 [2021-06-11 11:09:08,015 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-06-11 11:09:08,015 INFO L147 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size 8 [2021-06-11 11:09:08,025 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-06-11 11:09:08,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:09:08,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:08,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:09:08,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:09:08,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382326515] [2021-06-11 11:09:08,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:09:08,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-11 11:09:08,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568679844] [2021-06-11 11:09:08,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 11:09:08,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:09:08,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 11:09:08,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-06-11 11:09:08,035 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:09:08,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 1199 transitions, 27725 flow. Second operand has 11 states, 11 states have (on average 55.72727272727273) internal successors, (613), 11 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:08,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:09:08,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:09:08,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:09:13,549 INFO L129 PetriNetUnfolder]: 4904/14592 cut-off events. [2021-06-11 11:09:13,549 INFO L130 PetriNetUnfolder]: For 529784/532104 co-relation queries the response was YES. [2021-06-11 11:09:13,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134990 conditions, 14592 events. 4904/14592 cut-off events. For 529784/532104 co-relation queries the response was YES. Maximal size of possible extension queue 925. Compared 172658 event pairs, 919 based on Foata normal form. 594/14755 useless extension candidates. Maximal degree in co-relation 134845. Up to 3172 conditions per place. [2021-06-11 11:09:13,894 INFO L132 encePairwiseOnDemand]: 69/83 looper letters, 796 selfloop transitions, 387 changer transitions 132/1407 dead transitions. [2021-06-11 11:09:13,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 1407 transitions, 35231 flow [2021-06-11 11:09:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 11:09:13,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 11:09:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 811 transitions. [2021-06-11 11:09:13,895 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7516218721037998 [2021-06-11 11:09:13,895 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 811 transitions. [2021-06-11 11:09:13,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 811 transitions. [2021-06-11 11:09:13,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:09:13,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 811 transitions. [2021-06-11 11:09:13,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 62.38461538461539) internal successors, (811), 13 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:13,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:13,897 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:13,897 INFO L185 Difference]: Start difference. First operand has 362 places, 1199 transitions, 27725 flow. Second operand 13 states and 811 transitions. [2021-06-11 11:09:13,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 1407 transitions, 35231 flow [2021-06-11 11:09:16,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 1407 transitions, 34786 flow, removed 132 selfloop flow, removed 6 redundant places. [2021-06-11 11:09:17,021 INFO L241 Difference]: Finished difference. Result has 377 places, 1172 transitions, 28474 flow [2021-06-11 11:09:17,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=27141, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=340, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28474, PETRI_PLACES=377, PETRI_TRANSITIONS=1172} [2021-06-11 11:09:17,021 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 329 predicate places. [2021-06-11 11:09:17,021 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:09:17,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 377 places, 1172 transitions, 28474 flow [2021-06-11 11:09:17,022 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 377 places, 1172 transitions, 28474 flow [2021-06-11 11:09:17,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 376 places, 1172 transitions, 28474 flow [2021-06-11 11:09:19,786 INFO L129 PetriNetUnfolder]: 3857/12554 cut-off events. [2021-06-11 11:09:19,786 INFO L130 PetriNetUnfolder]: For 426671/428935 co-relation queries the response was YES. [2021-06-11 11:09:19,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109229 conditions, 12554 events. 3857/12554 cut-off events. For 426671/428935 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 152388 event pairs, 731 based on Foata normal form. 531/12555 useless extension candidates. Maximal degree in co-relation 108457. Up to 2461 conditions per place. [2021-06-11 11:09:20,083 INFO L151 LiptonReduction]: Number of co-enabled transitions 8032 [2021-06-11 11:09:21,678 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:09:21,678 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:09:21,679 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4658 [2021-06-11 11:09:21,679 INFO L480 AbstractCegarLoop]: Abstraction has has 376 places, 1172 transitions, 28474 flow [2021-06-11 11:09:21,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 55.72727272727273) internal successors, (613), 11 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:21,679 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:09:21,679 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] [2021-06-11 11:09:21,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-11 11:09:21,679 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:09:21,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:09:21,680 INFO L82 PathProgramCache]: Analyzing trace with hash -331060286, now seen corresponding path program 1 times [2021-06-11 11:09:21,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:09:21,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651839073] [2021-06-11 11:09:21,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:09:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:09:21,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:21,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:09:21,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:21,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:09:21,705 INFO L142 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size [2021-06-11 11:09:21,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:09:21,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:21,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:09:21,717 INFO L142 QuantifierPusher]: treesize reduction 20, result has 48.7 percent of original size [2021-06-11 11:09:21,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:09:21,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:21,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:09:21,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:21,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:09:21,741 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-06-11 11:09:21,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:09:21,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:21,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:09:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:09:21,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651839073] [2021-06-11 11:09:21,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:09:21,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:09:21,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543974274] [2021-06-11 11:09:21,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:09:21,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:09:21,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:09:21,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:09:21,750 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:09:21,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 1172 transitions, 28474 flow. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:21,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:09:21,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:09:21,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:09:27,234 INFO L129 PetriNetUnfolder]: 4700/14120 cut-off events. [2021-06-11 11:09:27,234 INFO L130 PetriNetUnfolder]: For 556101/558368 co-relation queries the response was YES. [2021-06-11 11:09:27,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134023 conditions, 14120 events. 4700/14120 cut-off events. For 556101/558368 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 167286 event pairs, 902 based on Foata normal form. 695/14385 useless extension candidates. Maximal degree in co-relation 133295. Up to 2529 conditions per place. [2021-06-11 11:09:27,430 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 751 selfloop transitions, 509 changer transitions 14/1366 dead transitions. [2021-06-11 11:09:27,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 1366 transitions, 35890 flow [2021-06-11 11:09:27,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 11:09:27,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 11:09:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 637 transitions. [2021-06-11 11:09:27,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7674698795180723 [2021-06-11 11:09:27,432 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 637 transitions. [2021-06-11 11:09:27,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 637 transitions. [2021-06-11 11:09:27,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:09:27,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 637 transitions. [2021-06-11 11:09:27,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 63.7) internal successors, (637), 10 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:27,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:27,433 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:27,433 INFO L185 Difference]: Start difference. First operand has 376 places, 1172 transitions, 28474 flow. Second operand 10 states and 637 transitions. [2021-06-11 11:09:27,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 1366 transitions, 35890 flow [2021-06-11 11:09:30,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 1366 transitions, 35327 flow, removed 102 selfloop flow, removed 7 redundant places. [2021-06-11 11:09:30,493 INFO L241 Difference]: Finished difference. Result has 386 places, 1236 transitions, 31740 flow [2021-06-11 11:09:30,494 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=27781, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=697, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31740, PETRI_PLACES=386, PETRI_TRANSITIONS=1236} [2021-06-11 11:09:30,494 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 338 predicate places. [2021-06-11 11:09:30,494 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:09:30,494 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 386 places, 1236 transitions, 31740 flow [2021-06-11 11:09:30,494 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 386 places, 1236 transitions, 31740 flow [2021-06-11 11:09:30,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 386 places, 1236 transitions, 31740 flow [2021-06-11 11:09:33,394 INFO L129 PetriNetUnfolder]: 3830/12778 cut-off events. [2021-06-11 11:09:33,394 INFO L130 PetriNetUnfolder]: For 484644/486885 co-relation queries the response was YES. [2021-06-11 11:09:33,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115280 conditions, 12778 events. 3830/12778 cut-off events. For 484644/486885 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 156948 event pairs, 782 based on Foata normal form. 627/12888 useless extension candidates. Maximal degree in co-relation 114346. Up to 2287 conditions per place. [2021-06-11 11:09:33,895 INFO L151 LiptonReduction]: Number of co-enabled transitions 7952 [2021-06-11 11:09:35,630 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:09:35,631 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:09:35,631 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5137 [2021-06-11 11:09:35,631 INFO L480 AbstractCegarLoop]: Abstraction has has 386 places, 1236 transitions, 31740 flow [2021-06-11 11:09:35,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:35,631 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:09:35,631 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] [2021-06-11 11:09:35,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-11 11:09:35,631 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:09:35,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:09:35,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1493138296, now seen corresponding path program 4 times [2021-06-11 11:09:35,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:09:35,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419175928] [2021-06-11 11:09:35,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:09:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:09:35,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:35,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:09:35,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:35,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:09:35,654 INFO L142 QuantifierPusher]: treesize reduction 13, result has 59.4 percent of original size [2021-06-11 11:09:35,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:09:35,658 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-06-11 11:09:35,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:09:35,660 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-11 11:09:35,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:09:35,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:35,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:09:35,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:35,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:09:35,672 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:09:35,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:09:35,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:35,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:09:35,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:09:35,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:09:35,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419175928] [2021-06-11 11:09:35,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:09:35,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:09:35,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471734343] [2021-06-11 11:09:35,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 11:09:35,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:09:35,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 11:09:35,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-11 11:09:35,683 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:09:35,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 1236 transitions, 31740 flow. Second operand has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:09:35,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:09:35,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:09:35,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:09:41,428 INFO L129 PetriNetUnfolder]: 4922/14746 cut-off events. [2021-06-11 11:09:41,428 INFO L130 PetriNetUnfolder]: For 636241/639157 co-relation queries the response was YES. [2021-06-11 11:09:41,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144164 conditions, 14746 events. 4922/14746 cut-off events. For 636241/639157 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 176090 event pairs, 1256 based on Foata normal form. 493/14754 useless extension candidates. Maximal degree in co-relation 143463. Up to 7491 conditions per place. [2021-06-11 11:09:41,788 INFO L132 encePairwiseOnDemand]: 75/83 looper letters, 1135 selfloop transitions, 147 changer transitions 14/1388 dead transitions. [2021-06-11 11:09:41,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 1388 transitions, 37729 flow [2021-06-11 11:09:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 11:09:41,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 11:09:41,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 452 transitions. [2021-06-11 11:09:41,789 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7779690189328744 [2021-06-11 11:09:41,789 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 452 transitions. [2021-06-11 11:09:41,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 452 transitions. [2021-06-11 11:09:41,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:09:41,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 452 transitions. [2021-06-11 11:09:41,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 64.57142857142857) internal successors, (452), 7 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:41,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:41,790 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:41,790 INFO L185 Difference]: Start difference. First operand has 386 places, 1236 transitions, 31740 flow. Second operand 7 states and 452 transitions. [2021-06-11 11:09:41,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 1388 transitions, 37729 flow [2021-06-11 11:09:45,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 1388 transitions, 37582 flow, removed 73 selfloop flow, removed 1 redundant places. [2021-06-11 11:09:45,583 INFO L241 Difference]: Finished difference. Result has 394 places, 1262 transitions, 32751 flow [2021-06-11 11:09:45,584 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=31567, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1090, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=32751, PETRI_PLACES=394, PETRI_TRANSITIONS=1262} [2021-06-11 11:09:45,584 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 346 predicate places. [2021-06-11 11:09:45,584 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:09:45,584 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 394 places, 1262 transitions, 32751 flow [2021-06-11 11:09:45,584 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 394 places, 1262 transitions, 32751 flow [2021-06-11 11:09:45,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 394 places, 1262 transitions, 32751 flow [2021-06-11 11:09:48,777 INFO L129 PetriNetUnfolder]: 3961/13277 cut-off events. [2021-06-11 11:09:48,777 INFO L130 PetriNetUnfolder]: For 498489/500756 co-relation queries the response was YES. [2021-06-11 11:09:48,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119019 conditions, 13277 events. 3961/13277 cut-off events. For 498489/500756 co-relation queries the response was YES. Maximal size of possible extension queue 906. Compared 164716 event pairs, 848 based on Foata normal form. 628/13347 useless extension candidates. Maximal degree in co-relation 118224. Up to 2359 conditions per place. [2021-06-11 11:09:49,087 INFO L151 LiptonReduction]: Number of co-enabled transitions 8050 [2021-06-11 11:09:50,343 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:09:50,343 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:09:50,343 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4759 [2021-06-11 11:09:50,346 INFO L480 AbstractCegarLoop]: Abstraction has has 394 places, 1262 transitions, 32751 flow [2021-06-11 11:09:50,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:09:50,346 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:09:50,346 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] [2021-06-11 11:09:50,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-11 11:09:50,346 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:09:50,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:09:50,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1244062058, now seen corresponding path program 7 times [2021-06-11 11:09:50,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:09:50,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212276046] [2021-06-11 11:09:50,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:09:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:09:50,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:50,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:09:50,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:50,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:09:50,407 INFO L142 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size [2021-06-11 11:09:50,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:09:50,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:50,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:09:50,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:50,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:09:50,444 INFO L142 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size [2021-06-11 11:09:50,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 11:09:50,448 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-06-11 11:09:50,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:09:50,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:50,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:09:50,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:09:50,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:09:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:09:50,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212276046] [2021-06-11 11:09:50,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:09:50,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:09:50,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786469301] [2021-06-11 11:09:50,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 11:09:50,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:09:50,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 11:09:50,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-11 11:09:50,485 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:09:50,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 1262 transitions, 32751 flow. Second operand has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:09:50,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:09:50,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:09:50,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:09:55,677 INFO L129 PetriNetUnfolder]: 4087/12695 cut-off events. [2021-06-11 11:09:55,677 INFO L130 PetriNetUnfolder]: For 541312/543470 co-relation queries the response was YES. [2021-06-11 11:09:55,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124045 conditions, 12695 events. 4087/12695 cut-off events. For 541312/543470 co-relation queries the response was YES. Maximal size of possible extension queue 879. Compared 150260 event pairs, 783 based on Foata normal form. 801/13067 useless extension candidates. Maximal degree in co-relation 123279. Up to 2779 conditions per place. [2021-06-11 11:09:55,861 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 900 selfloop transitions, 314 changer transitions 48/1354 dead transitions. [2021-06-11 11:09:55,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 1354 transitions, 37195 flow [2021-06-11 11:09:55,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 11:09:55,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 11:09:55,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2021-06-11 11:09:55,862 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7710843373493976 [2021-06-11 11:09:55,862 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 448 transitions. [2021-06-11 11:09:55,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 448 transitions. [2021-06-11 11:09:55,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:09:55,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 448 transitions. [2021-06-11 11:09:55,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:55,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:55,863 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:09:55,863 INFO L185 Difference]: Start difference. First operand has 394 places, 1262 transitions, 32751 flow. Second operand 7 states and 448 transitions. [2021-06-11 11:09:55,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 1354 transitions, 37195 flow [2021-06-11 11:09:59,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1354 transitions, 37023 flow, removed 36 selfloop flow, removed 2 redundant places. [2021-06-11 11:09:59,215 INFO L241 Difference]: Finished difference. Result has 401 places, 1173 transitions, 31045 flow [2021-06-11 11:09:59,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=30605, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=300, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=888, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31045, PETRI_PLACES=401, PETRI_TRANSITIONS=1173} [2021-06-11 11:09:59,216 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 353 predicate places. [2021-06-11 11:09:59,216 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:09:59,216 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 401 places, 1173 transitions, 31045 flow [2021-06-11 11:09:59,216 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 401 places, 1173 transitions, 31045 flow [2021-06-11 11:09:59,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 1173 transitions, 31045 flow [2021-06-11 11:10:01,836 INFO L129 PetriNetUnfolder]: 3339/11692 cut-off events. [2021-06-11 11:10:01,836 INFO L130 PetriNetUnfolder]: For 449975/451678 co-relation queries the response was YES. [2021-06-11 11:10:01,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106835 conditions, 11692 events. 3339/11692 cut-off events. For 449975/451678 co-relation queries the response was YES. Maximal size of possible extension queue 785. Compared 144561 event pairs, 804 based on Foata normal form. 472/11632 useless extension candidates. Maximal degree in co-relation 106010. Up to 2018 conditions per place. [2021-06-11 11:10:02,411 INFO L151 LiptonReduction]: Number of co-enabled transitions 6952 [2021-06-11 11:10:03,862 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:10:03,862 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:10:03,862 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4646 [2021-06-11 11:10:03,863 INFO L480 AbstractCegarLoop]: Abstraction has has 401 places, 1173 transitions, 31045 flow [2021-06-11 11:10:03,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:10:03,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:10:03,863 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 11:10:03,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-11 11:10:03,863 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:10:03,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:10:03,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1876634836, now seen corresponding path program 8 times [2021-06-11 11:10:03,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:10:03,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461946442] [2021-06-11 11:10:03,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:10:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:10:03,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:03,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:10:03,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:03,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:10:03,895 INFO L142 QuantifierPusher]: treesize reduction 33, result has 31.3 percent of original size [2021-06-11 11:10:03,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:10:03,903 INFO L142 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-06-11 11:10:03,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:10:03,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:03,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:10:03,914 INFO L142 QuantifierPusher]: treesize reduction 31, result has 39.2 percent of original size [2021-06-11 11:10:03,914 INFO L147 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size 15 [2021-06-11 11:10:03,928 INFO L142 QuantifierPusher]: treesize reduction 36, result has 34.5 percent of original size [2021-06-11 11:10:03,928 INFO L147 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size 16 [2021-06-11 11:10:03,942 INFO L142 QuantifierPusher]: treesize reduction 41, result has 35.9 percent of original size [2021-06-11 11:10:03,943 INFO L147 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size 18 [2021-06-11 11:10:03,959 INFO L142 QuantifierPusher]: treesize reduction 40, result has 27.3 percent of original size [2021-06-11 11:10:03,959 INFO L147 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size 10 [2021-06-11 11:10:03,972 INFO L142 QuantifierPusher]: treesize reduction 40, result has 27.3 percent of original size [2021-06-11 11:10:03,972 INFO L147 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size 10 [2021-06-11 11:10:03,985 INFO L142 QuantifierPusher]: treesize reduction 40, result has 27.3 percent of original size [2021-06-11 11:10:03,985 INFO L147 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size 10 [2021-06-11 11:10:03,986 INFO L142 QuantifierPusher]: treesize reduction 32, result has 36.0 percent of original size [2021-06-11 11:10:03,986 INFO L147 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size 13 [2021-06-11 11:10:04,001 INFO L142 QuantifierPusher]: treesize reduction 33, result has 49.2 percent of original size [2021-06-11 11:10:04,002 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-06-11 11:10:04,027 INFO L142 QuantifierPusher]: treesize reduction 13, result has 7.1 percent of original size [2021-06-11 11:10:04,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:10:04,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:04,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:10:04,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:10:04,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461946442] [2021-06-11 11:10:04,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:10:04,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-11 11:10:04,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164090531] [2021-06-11 11:10:04,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 11:10:04,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:10:04,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 11:10:04,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-06-11 11:10:04,036 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:10:04,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 1173 transitions, 31045 flow. Second operand has 13 states, 13 states have (on average 55.46153846153846) internal successors, (721), 13 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:04,036 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:10:04,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:10:04,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:10:09,774 INFO L129 PetriNetUnfolder]: 4284/13961 cut-off events. [2021-06-11 11:10:09,775 INFO L130 PetriNetUnfolder]: For 611477/613273 co-relation queries the response was YES. [2021-06-11 11:10:09,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138023 conditions, 13961 events. 4284/13961 cut-off events. For 611477/613273 co-relation queries the response was YES. Maximal size of possible extension queue 932. Compared 170901 event pairs, 1118 based on Foata normal form. 352/13852 useless extension candidates. Maximal degree in co-relation 137093. Up to 4952 conditions per place. [2021-06-11 11:10:09,987 INFO L132 encePairwiseOnDemand]: 68/83 looper letters, 930 selfloop transitions, 270 changer transitions 126/1418 dead transitions. [2021-06-11 11:10:09,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 1418 transitions, 40217 flow [2021-06-11 11:10:09,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 11:10:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 11:10:09,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 767 transitions. [2021-06-11 11:10:09,988 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7700803212851406 [2021-06-11 11:10:09,988 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 767 transitions. [2021-06-11 11:10:09,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 767 transitions. [2021-06-11 11:10:09,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:10:09,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 767 transitions. [2021-06-11 11:10:09,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 63.916666666666664) internal successors, (767), 12 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:09,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:09,990 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:09,990 INFO L185 Difference]: Start difference. First operand has 401 places, 1173 transitions, 31045 flow. Second operand 12 states and 767 transitions. [2021-06-11 11:10:09,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 1418 transitions, 40217 flow [2021-06-11 11:10:13,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 1418 transitions, 39817 flow, removed 178 selfloop flow, removed 4 redundant places. [2021-06-11 11:10:13,838 INFO L241 Difference]: Finished difference. Result has 412 places, 1102 transitions, 30193 flow [2021-06-11 11:10:13,839 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=29275, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=848, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=30193, PETRI_PLACES=412, PETRI_TRANSITIONS=1102} [2021-06-11 11:10:13,839 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 364 predicate places. [2021-06-11 11:10:13,839 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:10:13,839 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 412 places, 1102 transitions, 30193 flow [2021-06-11 11:10:13,839 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 412 places, 1102 transitions, 30193 flow [2021-06-11 11:10:13,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 408 places, 1102 transitions, 30193 flow [2021-06-11 11:10:16,888 INFO L129 PetriNetUnfolder]: 3405/12378 cut-off events. [2021-06-11 11:10:16,889 INFO L130 PetriNetUnfolder]: For 494510/496338 co-relation queries the response was YES. [2021-06-11 11:10:17,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114211 conditions, 12378 events. 3405/12378 cut-off events. For 494510/496338 co-relation queries the response was YES. Maximal size of possible extension queue 800. Compared 156829 event pairs, 820 based on Foata normal form. 438/12304 useless extension candidates. Maximal degree in co-relation 113795. Up to 2125 conditions per place. [2021-06-11 11:10:17,203 INFO L151 LiptonReduction]: Number of co-enabled transitions 6376 [2021-06-11 11:10:18,242 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:10:18,242 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:10:18,243 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4404 [2021-06-11 11:10:18,243 INFO L480 AbstractCegarLoop]: Abstraction has has 408 places, 1102 transitions, 30193 flow [2021-06-11 11:10:18,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 55.46153846153846) internal successors, (721), 13 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:18,243 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:10:18,243 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] [2021-06-11 11:10:18,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-11 11:10:18,243 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:10:18,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:10:18,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1729628446, now seen corresponding path program 5 times [2021-06-11 11:10:18,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:10:18,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516810036] [2021-06-11 11:10:18,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:10:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:10:18,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:18,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:10:18,266 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-06-11 11:10:18,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:10:18,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:18,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:10:18,269 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-11 11:10:18,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:10:18,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:18,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:10:18,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:18,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:10:18,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:18,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:10:18,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:18,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:10:18,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:18,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:10:18,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:18,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:10:18,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:18,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:10:18,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:10:18,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516810036] [2021-06-11 11:10:18,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:10:18,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:10:18,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428261647] [2021-06-11 11:10:18,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 11:10:18,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:10:18,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 11:10:18,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-11 11:10:18,300 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:10:18,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 1102 transitions, 30193 flow. Second operand has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:10:18,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:10:18,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:10:18,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:10:23,713 INFO L129 PetriNetUnfolder]: 4067/13306 cut-off events. [2021-06-11 11:10:23,714 INFO L130 PetriNetUnfolder]: For 597715/599522 co-relation queries the response was YES. [2021-06-11 11:10:23,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132196 conditions, 13306 events. 4067/13306 cut-off events. For 597715/599522 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 161831 event pairs, 1359 based on Foata normal form. 148/13025 useless extension candidates. Maximal degree in co-relation 131771. Up to 7335 conditions per place. [2021-06-11 11:10:23,933 INFO L132 encePairwiseOnDemand]: 70/83 looper letters, 926 selfloop transitions, 147 changer transitions 5/1170 dead transitions. [2021-06-11 11:10:23,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 1170 transitions, 34177 flow [2021-06-11 11:10:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:10:23,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:10:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 690 transitions. [2021-06-11 11:10:23,935 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.755750273822563 [2021-06-11 11:10:23,935 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 690 transitions. [2021-06-11 11:10:23,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 690 transitions. [2021-06-11 11:10:23,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:10:23,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 690 transitions. [2021-06-11 11:10:23,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 62.72727272727273) internal successors, (690), 11 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:23,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:23,936 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:23,936 INFO L185 Difference]: Start difference. First operand has 408 places, 1102 transitions, 30193 flow. Second operand 11 states and 690 transitions. [2021-06-11 11:10:23,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 1170 transitions, 34177 flow [2021-06-11 11:10:27,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 1170 transitions, 33668 flow, removed 111 selfloop flow, removed 8 redundant places. [2021-06-11 11:10:27,448 INFO L241 Difference]: Finished difference. Result has 416 places, 1114 transitions, 30510 flow [2021-06-11 11:10:27,448 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=29730, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=30510, PETRI_PLACES=416, PETRI_TRANSITIONS=1114} [2021-06-11 11:10:27,449 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 368 predicate places. [2021-06-11 11:10:27,449 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:10:27,449 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 416 places, 1114 transitions, 30510 flow [2021-06-11 11:10:27,449 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 416 places, 1114 transitions, 30510 flow [2021-06-11 11:10:27,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 416 places, 1114 transitions, 30510 flow [2021-06-11 11:10:29,406 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[][21], [Black: 500#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 502#(and (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 504#(and (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 506#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 491#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 508#(and (<= 1 n3) (<= n2 n1) (< n3 n1)), 263#true, Black: 493#(and (<= 1 n1) (<= 0 n3)), Black: 510#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), 10#thread1EXITtrue, Black: 768#(and (<= n1 (+ n3 1)) (< n2 n1) (< 0 n1)), 522#true, Black: 769#(and (<= 0 n3) (< 0 n1)), Black: 774#(and (<= n1 n3) (< n2 n1) (< 0 n1)), Black: 776#(and (<= n1 n3) (< 0 n1)), Black: 764#(and (<= n1 n3) (<= 0 n1) (<= n3 n1)), Black: 765#(and (<= n1 n3) (<= 0 n1)), Black: 766#(and (<= n1 (+ n3 1)) (< 0 n1)), 786#true, Black: 528#(and (<= n1 n2) (<= 1 n1) (< n2 (+ n1 1))), Black: 530#(and (<= n1 n2) (<= 1 n1) (<= n3 n1) (< n2 (+ n1 1))), Black: 525#(and (<= n1 n2) (<= 0 n1) (<= n2 n1) (<= n3 n1)), Black: 526#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 527#(and (<= 1 n1) (<= (+ n2 1) n1) (<= n1 (+ n2 1))), Black: 539#e1, Black: 266#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 267#(and (<= 0 n3) (<= n3 0) (<= 0 n2)), 32#L77true, Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), Black: 788#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 789#(and (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 791#(and (<= 1 n3) (<= (+ n2 1) n1) (<= n3 n1)), Black: 792#(and (<= 1 n3) (<= n3 n2)), 548#(and (<= 1 n3) (<= 0 n1)), Black: 793#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 799#(and (<= 1 n3) (<= n3 n2) (<= n2 n1)), 38#L64true, 44#L49true, Black: 544#(and (<= n1 n3) (<= 0 n1) (<= n2 n1)), Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), Black: 546#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3)), 316#true, Black: 549#(and (<= 1 n3) (<= 1 n1)), Black: 550#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 552#(and (<= n1 n3) (<= 1 n3) (<= 0 n1) (<= n2 n1)), Black: 554#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), Black: 556#(and (<= 1 n3) (<= 0 n1) (<= n2 n3) (<= n2 n1)), Black: 558#(and (<= 1 n3) (<= 1 n1) (<= n2 n3) (<= n2 n1)), 67#true, Black: 560#(and (<= 1 n3) (<= 0 n1) (<= n2 n1)), Black: 562#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 564#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n3)), Black: 566#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n1)), 590#(and (<= 0 n1) (<= 1 n2)), Black: 323#(and (< n2 n1) (<= 0 n3) (<= (+ n3 1) n2)), Black: 324#(and (<= 1 n3) (< n2 n1) (<= n3 n2)), Black: 329#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (< n2 (+ n1 1)) (or (<= n1 n2) (<= (+ n3 1) n2))), Black: 331#(and (<= 1 n3) (< n2 n1) (= n3 n2)), 342#true, Black: 69#(and (<= i 0) (<= 0 i)), 95#true, Black: 347#(and (< n3 (+ n2 1)) (< 0 n2) (<= n2 n3)), 354#true, Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 608#(and (<= 0 n1) (<= n3 n2) (<= 1 n2)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 610#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= 0 n3)), Black: 612#(and (<= 1 n1) (<= n3 n2) (<= 1 n2)), Black: 614#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= n2 n3)), Black: 111#e2, Black: 618#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2)), Black: 588#(and (<= 0 n1) (<= n3 n2) (<= 0 n2)), Black: 589#(and (<= 0 n1) (<= 0 n2)), Black: 591#(and (<= 1 n1) (<= 1 n2)), Black: 592#(and (< n1 (+ n2 1)) (<= 1 n1)), Black: 116#e3, Black: 596#(and (<= 0 n1) (= n3 n2) (<= 0 n2)), Black: 598#(and (<= 0 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 602#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 604#(and (<= 0 n1) (= n3 n2) (<= 1 n2)), 637#true, Black: 369#(and (<= 1 n3) (<= n2 n3) (< n3 (+ n1 1))), Black: 371#(and (<= 1 n3) (<= n2 n1) (< n3 (+ n1 1))), 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 373#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (< n3 (+ n1 1))), Black: 640#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 358#(and (<= 0 n3) (<= n2 n3) (<= n3 n1)), Black: 375#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n3)), Black: 641#(and (<= 0 n1) (<= n2 (+ n1 1)) (<= (+ n1 1) n2)), Black: 642#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n2 n1)), Black: 377#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 361#(and (<= (+ n3 1) n1) (<= 0 n3)), Black: 362#(and (<= 1 n3) (< n3 (+ n1 1))), Black: 379#(and (<= 1 n3) (<= n2 n1) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 367#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n1)), 655#(and (<= n2 n3) (<= 1 n2)), Black: 650#(and (<= n3 n2) (<= n2 n3) (<= 0 n2)), Black: 400#(and (<= 1 i) (<= i 1)), Black: 406#(and (<= 1 i3) (<= 1 i) (<= i3 1) (<= i 1)), Black: 412#(and (<= 2 i1) (< 2 i) (<= i 3) (<= 1 i3) (<= i3 1) (<= i1 2)), 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), 681#(and (<= 1 n3) (<= 1 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 675#(and (<= (+ n3 1) n1) (<= 0 n3) (<= 1 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 677#(and (<= 0 n3) (<= 1 n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 662#(and (= n3 n1) (<= 0 n3) (<= 0 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), 429#(and (<= 0 n1) (<= 0 n3) (<= n2 n3)), Black: 679#(and (= n3 n1) (<= 1 n1) (<= 1 n2)), Black: 664#(and (= n3 n1) (<= 1 n1) (<= 0 n2)), Black: 665#(and (<= 0 n3) (<= 0 n2)), Black: 671#(and (<= (+ n3 1) n1) (<= 0 n3) (<= 0 n2)), Black: 433#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 435#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 437#(and (<= 1 n3) (<= 1 n1) (<= n2 n3)), 186#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 422#(and (<= 0 n1) (<= 0 n3)), Black: 423#(and (<= 1 n1) (<= 0 n3)), Black: 424#(and (<= 1 n3) (<= 1 n1)), Black: 425#(and (<= n1 n3) (<= 1 n1)), Black: 427#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 431#(and (<= 1 n1) (<= 0 n3) (<= n2 n3)), 706#(and (<= n1 n2) (<= 1 n3) (<= 0 n1)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, 459#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), Black: 704#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 708#(and (<= 1 n3) (<= 0 n1) (<= 0 n2)), Black: 452#(and (= n3 n2) (<= 0 n2)), Black: 710#(and (<= 1 n3) (<= 1 n1) (<= 0 n2)), Black: 712#(and (<= n1 n2) (<= 1 n3) (<= 1 n1)), Black: 453#(and (<= n2 n3) (<= 0 n2)), Black: 454#(and (<= 0 n3) (<= 0 n2)), Black: 714#(and (< n1 (+ n3 1)) (<= 1 n1) (<= 0 n2)), Black: 716#(and (<= n1 n2) (< n1 (+ n3 1)) (<= 1 n1)), Black: 455#(and (<= 1 n3) (<= 0 n2)), Black: 456#(and (<= 1 n3) (<= 1 n2)), Black: 702#(and (<= n1 n2) (<= 0 n1) (<= 0 n3)), Black: 457#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 461#(and (= n3 n2) (<= 1 n2)), Black: 730#(and (<= 0 n3) (<= n2 n3)), Black: 732#(and (<= 1 n3) (= n3 n2)), Black: 733#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 481#(and (= n3 n2) (<= 1 n2)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 477#(and (<= n2 n3) (<= 0 n2)), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 478#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 479#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), 747#(and (<= n1 n2) (<= 0 n1) (<= 0 n3)), 492#(and (<= 0 n1) (<= 0 n3)), Black: 753#(and (<= n1 n2) (<= 1 n1) (<= 0 n3)), Black: 755#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), Black: 751#(and (<= 1 n1) (<= 0 n3) (<= 0 n2)), 760#true]) [2021-06-11 11:10:29,406 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2021-06-11 11:10:29,406 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-06-11 11:10:29,406 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-06-11 11:10:29,406 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-06-11 11:10:30,321 INFO L129 PetriNetUnfolder]: 3444/12531 cut-off events. [2021-06-11 11:10:30,321 INFO L130 PetriNetUnfolder]: For 490174/491991 co-relation queries the response was YES. [2021-06-11 11:10:30,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114907 conditions, 12531 events. 3444/12531 cut-off events. For 490174/491991 co-relation queries the response was YES. Maximal size of possible extension queue 823. Compared 159089 event pairs, 838 based on Foata normal form. 435/12440 useless extension candidates. Maximal degree in co-relation 114156. Up to 2151 conditions per place. [2021-06-11 11:10:30,840 INFO L151 LiptonReduction]: Number of co-enabled transitions 6428 [2021-06-11 11:10:31,853 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:10:31,854 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:10:31,854 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4405 [2021-06-11 11:10:31,854 INFO L480 AbstractCegarLoop]: Abstraction has has 416 places, 1114 transitions, 30510 flow [2021-06-11 11:10:31,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:10:31,854 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:10:31,854 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 11:10:31,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-11 11:10:31,854 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:10:31,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:10:31,855 INFO L82 PathProgramCache]: Analyzing trace with hash 781025572, now seen corresponding path program 6 times [2021-06-11 11:10:31,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:10:31,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548723591] [2021-06-11 11:10:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:10:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:10:31,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:31,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:10:31,877 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-06-11 11:10:31,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:10:31,879 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 11:10:31,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:10:31,881 INFO L142 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size [2021-06-11 11:10:31,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:10:31,882 INFO L142 QuantifierPusher]: treesize reduction 7, result has 58.8 percent of original size [2021-06-11 11:10:31,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:10:31,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:31,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:10:31,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:31,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:10:31,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:31,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:10:31,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:31,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:10:31,901 INFO L142 QuantifierPusher]: treesize reduction 11, result has 50.0 percent of original size [2021-06-11 11:10:31,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 11:10:31,904 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:10:31,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:10:31,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:31,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:10:31,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:31,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:10:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:10:31,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548723591] [2021-06-11 11:10:31,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:10:31,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:10:31,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205619987] [2021-06-11 11:10:31,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:10:31,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:10:31,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:10:31,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:10:31,917 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:10:31,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 1114 transitions, 30510 flow. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:31,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:10:31,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:10:31,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:10:37,413 INFO L129 PetriNetUnfolder]: 4060/13522 cut-off events. [2021-06-11 11:10:37,413 INFO L130 PetriNetUnfolder]: For 587802/589440 co-relation queries the response was YES. [2021-06-11 11:10:37,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133207 conditions, 13522 events. 4060/13522 cut-off events. For 587802/589440 co-relation queries the response was YES. Maximal size of possible extension queue 921. Compared 166096 event pairs, 765 based on Foata normal form. 486/13619 useless extension candidates. Maximal degree in co-relation 132302. Up to 2611 conditions per place. [2021-06-11 11:10:37,786 INFO L132 encePairwiseOnDemand]: 68/83 looper letters, 684 selfloop transitions, 483 changer transitions 76/1335 dead transitions. [2021-06-11 11:10:37,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1335 transitions, 38583 flow [2021-06-11 11:10:37,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:10:37,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:10:37,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 702 transitions. [2021-06-11 11:10:37,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.768893756845564 [2021-06-11 11:10:37,787 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 702 transitions. [2021-06-11 11:10:37,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 702 transitions. [2021-06-11 11:10:37,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:10:37,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 702 transitions. [2021-06-11 11:10:37,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 63.81818181818182) internal successors, (702), 11 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:37,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:37,789 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:37,789 INFO L185 Difference]: Start difference. First operand has 416 places, 1114 transitions, 30510 flow. Second operand 11 states and 702 transitions. [2021-06-11 11:10:37,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1335 transitions, 38583 flow [2021-06-11 11:10:41,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 1335 transitions, 38375 flow, removed 66 selfloop flow, removed 1 redundant places. [2021-06-11 11:10:41,286 INFO L241 Difference]: Finished difference. Result has 431 places, 1137 transitions, 32441 flow [2021-06-11 11:10:41,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=30242, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=401, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=32441, PETRI_PLACES=431, PETRI_TRANSITIONS=1137} [2021-06-11 11:10:41,287 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 383 predicate places. [2021-06-11 11:10:41,287 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:10:41,287 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 431 places, 1137 transitions, 32441 flow [2021-06-11 11:10:41,287 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 431 places, 1137 transitions, 32441 flow [2021-06-11 11:10:41,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 430 places, 1137 transitions, 32441 flow [2021-06-11 11:10:43,185 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[][20], [Black: 500#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 256#(and (<= 1 i2) (<= i3 0) (<= 2 i1) (< 2 i) (<= i 3) (<= i2 1) (<= i1 2) (<= 0 i3)), Black: 502#(and (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 504#(and (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 506#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 491#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 508#(and (<= 1 n3) (<= n2 n1) (< n3 n1)), 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(+ n3 1) n1) (< n3 (+ n2 1)))), Black: 788#(and (<= n1 n3) (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 789#(and (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 791#(and (<= 1 n3) (<= (+ n2 1) n1) (<= n3 n1)), 548#(and (<= 1 n3) (<= 0 n1)), Black: 792#(and (<= 1 n3) (<= n3 n2)), Black: 793#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 799#(and (<= 1 n3) (<= n3 n2) (<= n2 n1)), 38#L64true, 44#L49true, 813#(and (<= n1 n2) (<= 1 n3) (<= 0 n2)), Black: 817#(and (<= n1 n2) (<= 1 n3) (<= 1 n2)), Black: 819#(and (<= n1 n2) (<= 1 n3) (<= (+ n3 1) n2)), Black: 812#(and (<= 1 n3) (<= 0 n2)), Black: 544#(and (<= n1 n3) (<= 0 n1) (<= n2 n1)), Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 814#(and (<= 1 n3) (<= 1 n2)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), Black: 815#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 546#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3)), 316#true, Black: 549#(and (<= 1 n3) (<= 1 n1)), Black: 550#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 552#(and (<= n1 n3) (<= 1 n3) (<= 0 n1) (<= n2 n1)), Black: 554#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), Black: 556#(and (<= 1 n3) (<= 0 n1) (<= n2 n3) (<= n2 n1)), Black: 558#(and (<= 1 n3) (<= 1 n1) (<= n2 n3) (<= n2 n1)), Black: 560#(and (<= 1 n3) (<= 0 n1) (<= n2 n1)), 67#true, Black: 562#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 564#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n3)), Black: 566#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n1)), 590#(and (<= 0 n1) (<= 1 n2)), Black: 323#(and (< n2 n1) (<= 0 n3) (<= (+ n3 1) n2)), Black: 324#(and (<= 1 n3) (< n2 n1) (<= n3 n2)), Black: 329#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (< n2 (+ n1 1)) (or (<= n1 n2) (<= (+ n3 1) n2))), Black: 331#(and (<= 1 n3) (< n2 n1) (= n3 n2)), 342#true, Black: 69#(and (<= i 0) (<= 0 i)), 95#true, Black: 347#(and (< n3 (+ n2 1)) (< 0 n2) (<= n2 n3)), 354#true, Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 608#(and (<= 0 n1) (<= n3 n2) (<= 1 n2)), Black: 610#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= 0 n3)), Black: 612#(and (<= 1 n1) (<= n3 n2) (<= 1 n2)), Black: 614#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= n2 n3)), Black: 618#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2)), Black: 111#e2, Black: 588#(and (<= 0 n1) (<= n3 n2) (<= 0 n2)), Black: 589#(and (<= 0 n1) (<= 0 n2)), Black: 591#(and (<= 1 n1) (<= 1 n2)), Black: 592#(and (< n1 (+ n2 1)) (<= 1 n1)), Black: 116#e3, Black: 596#(and (<= 0 n1) (= n3 n2) (<= 0 n2)), Black: 598#(and (<= 0 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 602#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 604#(and (<= 0 n1) (= n3 n2) (<= 1 n2)), 637#true, Black: 369#(and (<= 1 n3) (<= n2 n3) (< n3 (+ n1 1))), Black: 371#(and (<= 1 n3) (<= n2 n1) (< n3 (+ n1 1))), Black: 373#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (< n3 (+ n1 1))), 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 640#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 358#(and (<= 0 n3) (<= n2 n3) (<= n3 n1)), Black: 375#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n3)), Black: 641#(and (<= 0 n1) (<= n2 (+ n1 1)) (<= (+ n1 1) n2)), Black: 642#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n2 n1)), Black: 377#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 361#(and (<= (+ n3 1) n1) (<= 0 n3)), Black: 362#(and (<= 1 n3) (< n3 (+ n1 1))), Black: 379#(and (<= 1 n3) (<= n2 n1) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 367#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n1)), 655#(and (<= n2 n3) (<= 1 n2)), Black: 650#(and (<= n3 n2) (<= n2 n3) (<= 0 n2)), Black: 400#(and (<= 1 i) (<= i 1)), Black: 406#(and (<= 1 i3) (<= 1 i) (<= i3 1) (<= i 1)), Black: 412#(and (<= 2 i1) (< 2 i) (<= i 3) (<= 1 i3) (<= i3 1) (<= i1 2)), 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), 681#(and (<= 1 n3) (<= 1 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 675#(and (<= (+ n3 1) n1) (<= 0 n3) (<= 1 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 677#(and (<= 0 n3) (<= 1 n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), 429#(and (<= 0 n1) (<= 0 n3) (<= n2 n3)), Black: 662#(and (= n3 n1) (<= 0 n3) (<= 0 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), Black: 679#(and (= n3 n1) (<= 1 n1) (<= 1 n2)), Black: 664#(and (= n3 n1) (<= 1 n1) (<= 0 n2)), Black: 665#(and (<= 0 n3) (<= 0 n2)), Black: 671#(and (<= (+ n3 1) n1) (<= 0 n3) (<= 0 n2)), Black: 433#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 435#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 437#(and (<= 1 n3) (<= 1 n1) (<= n2 n3)), Black: 422#(and (<= 0 n1) (<= 0 n3)), 186#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 423#(and (<= 1 n1) (<= 0 n3)), Black: 424#(and (<= 1 n3) (<= 1 n1)), Black: 425#(and (<= n1 n3) (<= 1 n1)), Black: 427#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 431#(and (<= 1 n1) (<= 0 n3) (<= n2 n3)), 706#(and (<= n1 n2) (<= 1 n3) (<= 0 n1)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 459#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), 203#true, Black: 704#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 708#(and (<= 1 n3) (<= 0 n1) (<= 0 n2)), Black: 452#(and (= n3 n2) (<= 0 n2)), Black: 710#(and (<= 1 n3) (<= 1 n1) (<= 0 n2)), Black: 453#(and (<= n2 n3) (<= 0 n2)), Black: 712#(and (<= n1 n2) (<= 1 n3) (<= 1 n1)), Black: 714#(and (< n1 (+ n3 1)) (<= 1 n1) (<= 0 n2)), Black: 454#(and (<= 0 n3) (<= 0 n2)), Black: 455#(and (<= 1 n3) (<= 0 n2)), Black: 716#(and (<= n1 n2) (< n1 (+ n3 1)) (<= 1 n1)), Black: 702#(and (<= n1 n2) (<= 0 n1) (<= 0 n3)), Black: 456#(and (<= 1 n3) (<= 1 n2)), Black: 457#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 461#(and (= n3 n2) (<= 1 n2)), Black: 730#(and (<= 0 n3) (<= n2 n3)), Black: 732#(and (<= 1 n3) (= n3 n2)), Black: 733#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 481#(and (= n3 n2) (<= 1 n2)), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 477#(and (<= n2 n3) (<= 0 n2)), Black: 478#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 479#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 205#(and (<= n1 n3) (<= n2 n3) (<= n3 0) (<= 0 n2)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 206#(and (<= n2 n3) (<= n3 0) (<= 0 n2)), 747#(and (<= n1 n2) (<= 0 n1) (<= 0 n3)), 492#(and (<= 0 n1) (<= 0 n3)), Black: 753#(and (<= n1 n2) (<= 1 n1) (<= 0 n3)), Black: 755#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), Black: 751#(and (<= 1 n1) (<= 0 n3) (<= 0 n2)), 760#true]) [2021-06-11 11:10:43,185 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2021-06-11 11:10:43,185 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-06-11 11:10:43,185 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-06-11 11:10:43,186 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-06-11 11:10:44,315 INFO L129 PetriNetUnfolder]: 3447/12518 cut-off events. [2021-06-11 11:10:44,315 INFO L130 PetriNetUnfolder]: For 548781/550849 co-relation queries the response was YES. [2021-06-11 11:10:44,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119878 conditions, 12518 events. 3447/12518 cut-off events. For 548781/550849 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 159296 event pairs, 798 based on Foata normal form. 468/12459 useless extension candidates. Maximal degree in co-relation 119184. Up to 2184 conditions per place. [2021-06-11 11:10:44,812 INFO L151 LiptonReduction]: Number of co-enabled transitions 6444 [2021-06-11 11:10:45,852 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:10:45,853 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:10:45,853 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4566 [2021-06-11 11:10:45,853 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 1137 transitions, 32441 flow [2021-06-11 11:10:45,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:45,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:10:45,853 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] [2021-06-11 11:10:45,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-11 11:10:45,853 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:10:45,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:10:45,854 INFO L82 PathProgramCache]: Analyzing trace with hash -408258552, now seen corresponding path program 7 times [2021-06-11 11:10:45,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:10:45,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372078020] [2021-06-11 11:10:45,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:10:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:10:45,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:45,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 11:10:45,873 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-06-11 11:10:45,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:10:45,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:45,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:10:45,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:45,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:10:45,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:45,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:10:45,973 INFO L142 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-06-11 11:10:45,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:10:45,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:45,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:10:45,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:10:45,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:10:45,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:10:45,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372078020] [2021-06-11 11:10:45,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:10:45,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:10:45,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445126431] [2021-06-11 11:10:45,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 11:10:45,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:10:45,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 11:10:45,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-11 11:10:45,991 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:10:45,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 1137 transitions, 32441 flow. Second operand has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:10:45,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:10:45,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:10:45,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:10:52,793 INFO L129 PetriNetUnfolder]: 4817/16383 cut-off events. [2021-06-11 11:10:52,793 INFO L130 PetriNetUnfolder]: For 795569/798022 co-relation queries the response was YES. [2021-06-11 11:10:52,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165777 conditions, 16383 events. 4817/16383 cut-off events. For 795569/798022 co-relation queries the response was YES. Maximal size of possible extension queue 1116. Compared 209822 event pairs, 1285 based on Foata normal form. 409/16307 useless extension candidates. Maximal degree in co-relation 165419. Up to 5874 conditions per place. [2021-06-11 11:10:53,053 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 992 selfloop transitions, 315 changer transitions 30/1429 dead transitions. [2021-06-11 11:10:53,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1429 transitions, 43837 flow [2021-06-11 11:10:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 11:10:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 11:10:53,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 510 transitions. [2021-06-11 11:10:53,054 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7680722891566265 [2021-06-11 11:10:53,054 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 510 transitions. [2021-06-11 11:10:53,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 510 transitions. [2021-06-11 11:10:53,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:10:53,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 510 transitions. [2021-06-11 11:10:53,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 63.75) internal successors, (510), 8 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:53,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:53,055 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:10:53,056 INFO L185 Difference]: Start difference. First operand has 430 places, 1137 transitions, 32441 flow. Second operand 8 states and 510 transitions. [2021-06-11 11:10:53,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1429 transitions, 43837 flow [2021-06-11 11:10:58,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 1429 transitions, 43322 flow, removed 176 selfloop flow, removed 7 redundant places. [2021-06-11 11:10:58,314 INFO L241 Difference]: Finished difference. Result has 436 places, 1222 transitions, 36478 flow [2021-06-11 11:10:58,315 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=32067, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36478, PETRI_PLACES=436, PETRI_TRANSITIONS=1222} [2021-06-11 11:10:58,315 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 388 predicate places. [2021-06-11 11:10:58,315 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:10:58,315 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 436 places, 1222 transitions, 36478 flow [2021-06-11 11:10:58,315 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 436 places, 1222 transitions, 36478 flow [2021-06-11 11:10:58,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 1222 transitions, 36478 flow [2021-06-11 11:11:02,238 INFO L129 PetriNetUnfolder]: 4061/15261 cut-off events. [2021-06-11 11:11:02,238 INFO L130 PetriNetUnfolder]: For 675088/677320 co-relation queries the response was YES. [2021-06-11 11:11:02,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144413 conditions, 15261 events. 4061/15261 cut-off events. For 675088/677320 co-relation queries the response was YES. Maximal size of possible extension queue 1014. Compared 203353 event pairs, 1009 based on Foata normal form. 548/15177 useless extension candidates. Maximal degree in co-relation 143618. Up to 2573 conditions per place. [2021-06-11 11:11:02,652 INFO L151 LiptonReduction]: Number of co-enabled transitions 6706 [2021-06-11 11:11:03,858 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:11:03,859 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:11:03,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5544 [2021-06-11 11:11:03,859 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 1222 transitions, 36478 flow [2021-06-11 11:11:03,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:11:03,859 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:11:03,859 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] [2021-06-11 11:11:03,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-11 11:11:03,859 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:11:03,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:11:03,860 INFO L82 PathProgramCache]: Analyzing trace with hash 605472090, now seen corresponding path program 8 times [2021-06-11 11:11:03,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:11:03,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685289597] [2021-06-11 11:11:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:11:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:11:03,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:03,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 11:11:03,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:03,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:11:03,881 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-11 11:11:03,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:11:03,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:03,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:11:03,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:03,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:11:03,897 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-06-11 11:11:03,898 INFO L147 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size 7 [2021-06-11 11:11:03,906 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-06-11 11:11:03,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:11:03,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:03,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:11:03,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:11:03,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685289597] [2021-06-11 11:11:03,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:11:03,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:11:03,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687927304] [2021-06-11 11:11:03,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:11:03,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:11:03,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:11:03,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:11:03,914 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:11:03,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 1222 transitions, 36478 flow. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:03,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:11:03,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:11:03,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:11:12,058 INFO L129 PetriNetUnfolder]: 5215/18283 cut-off events. [2021-06-11 11:11:12,058 INFO L130 PetriNetUnfolder]: For 882203/884512 co-relation queries the response was YES. [2021-06-11 11:11:12,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182253 conditions, 18283 events. 5215/18283 cut-off events. For 882203/884512 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 242121 event pairs, 1244 based on Foata normal form. 666/18371 useless extension candidates. Maximal degree in co-relation 181429. Up to 4751 conditions per place. [2021-06-11 11:11:12,404 INFO L132 encePairwiseOnDemand]: 69/83 looper letters, 833 selfloop transitions, 509 changer transitions 42/1476 dead transitions. [2021-06-11 11:11:12,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 1476 transitions, 46440 flow [2021-06-11 11:11:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:11:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:11:12,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 707 transitions. [2021-06-11 11:11:12,405 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7743702081051479 [2021-06-11 11:11:12,405 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 707 transitions. [2021-06-11 11:11:12,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 707 transitions. [2021-06-11 11:11:12,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:11:12,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 707 transitions. [2021-06-11 11:11:12,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 64.27272727272727) internal successors, (707), 11 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:12,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:12,406 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:12,406 INFO L185 Difference]: Start difference. First operand has 436 places, 1222 transitions, 36478 flow. Second operand 11 states and 707 transitions. [2021-06-11 11:11:12,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 1476 transitions, 46440 flow [2021-06-11 11:11:18,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 1476 transitions, 46141 flow, removed 68 selfloop flow, removed 5 redundant places. [2021-06-11 11:11:18,445 INFO L241 Difference]: Finished difference. Result has 450 places, 1329 transitions, 41924 flow [2021-06-11 11:11:18,445 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=35614, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=361, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=718, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=41924, PETRI_PLACES=450, PETRI_TRANSITIONS=1329} [2021-06-11 11:11:18,445 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 402 predicate places. [2021-06-11 11:11:18,446 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:11:18,446 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 450 places, 1329 transitions, 41924 flow [2021-06-11 11:11:18,446 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 450 places, 1329 transitions, 41924 flow [2021-06-11 11:11:18,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 450 places, 1329 transitions, 41924 flow [2021-06-11 11:11:23,211 INFO L129 PetriNetUnfolder]: 4483/17430 cut-off events. [2021-06-11 11:11:23,211 INFO L130 PetriNetUnfolder]: For 829153/831780 co-relation queries the response was YES. [2021-06-11 11:11:23,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167568 conditions, 17430 events. 4483/17430 cut-off events. For 829153/831780 co-relation queries the response was YES. Maximal size of possible extension queue 1194. Compared 240269 event pairs, 1213 based on Foata normal form. 742/17446 useless extension candidates. Maximal degree in co-relation 167022. Up to 2915 conditions per place. [2021-06-11 11:11:23,866 INFO L151 LiptonReduction]: Number of co-enabled transitions 7020 [2021-06-11 11:11:26,289 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:11:26,290 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:11:26,290 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7844 [2021-06-11 11:11:26,290 INFO L480 AbstractCegarLoop]: Abstraction has has 450 places, 1329 transitions, 41924 flow [2021-06-11 11:11:26,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:26,290 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:11:26,290 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] [2021-06-11 11:11:26,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-11 11:11:26,290 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:11:26,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:11:26,291 INFO L82 PathProgramCache]: Analyzing trace with hash -190456986, now seen corresponding path program 9 times [2021-06-11 11:11:26,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:11:26,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268816575] [2021-06-11 11:11:26,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:11:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:11:26,306 INFO L142 QuantifierPusher]: treesize reduction 37, result has 32.7 percent of original size [2021-06-11 11:11:26,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:11:26,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:26,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:11:26,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:26,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:11:26,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:26,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 11:11:26,343 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-06-11 11:11:26,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:11:26,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:26,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:11:26,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:26,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:11:26,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:26,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:11:26,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:26,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:11:26,380 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:11:26,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:11:26,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:26,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:11:26,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:26,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:11:26,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:11:26,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268816575] [2021-06-11 11:11:26,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:11:26,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-11 11:11:26,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097586830] [2021-06-11 11:11:26,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 11:11:26,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:11:26,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 11:11:26,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-11 11:11:26,396 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:11:26,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 1329 transitions, 41924 flow. Second operand has 13 states, 13 states have (on average 55.46153846153846) internal successors, (721), 13 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:26,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:11:26,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:11:26,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:11:36,355 INFO L129 PetriNetUnfolder]: 5792/20583 cut-off events. [2021-06-11 11:11:36,356 INFO L130 PetriNetUnfolder]: For 1082869/1085949 co-relation queries the response was YES. [2021-06-11 11:11:36,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211646 conditions, 20583 events. 5792/20583 cut-off events. For 1082869/1085949 co-relation queries the response was YES. Maximal size of possible extension queue 1519. Compared 280618 event pairs, 1774 based on Foata normal form. 466/20357 useless extension candidates. Maximal degree in co-relation 210942. Up to 9025 conditions per place. [2021-06-11 11:11:36,957 INFO L132 encePairwiseOnDemand]: 67/83 looper letters, 1179 selfloop transitions, 273 changer transitions 24/1568 dead transitions. [2021-06-11 11:11:36,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1568 transitions, 51969 flow [2021-06-11 11:11:36,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-11 11:11:36,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-11 11:11:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1013 transitions. [2021-06-11 11:11:36,959 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7628012048192772 [2021-06-11 11:11:36,959 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1013 transitions. [2021-06-11 11:11:36,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1013 transitions. [2021-06-11 11:11:36,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:11:36,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1013 transitions. [2021-06-11 11:11:36,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 63.3125) internal successors, (1013), 16 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:36,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 83.0) internal successors, (1411), 17 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:36,961 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 83.0) internal successors, (1411), 17 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:36,961 INFO L185 Difference]: Start difference. First operand has 450 places, 1329 transitions, 41924 flow. Second operand 16 states and 1013 transitions. [2021-06-11 11:11:36,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1568 transitions, 51969 flow [2021-06-11 11:11:44,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 1568 transitions, 51240 flow, removed 128 selfloop flow, removed 5 redundant places. [2021-06-11 11:11:44,816 INFO L241 Difference]: Finished difference. Result has 471 places, 1387 transitions, 44312 flow [2021-06-11 11:11:44,817 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=40922, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1055, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=44312, PETRI_PLACES=471, PETRI_TRANSITIONS=1387} [2021-06-11 11:11:44,817 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 423 predicate places. [2021-06-11 11:11:44,817 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:11:44,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 471 places, 1387 transitions, 44312 flow [2021-06-11 11:11:44,817 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 471 places, 1387 transitions, 44312 flow [2021-06-11 11:11:44,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 471 places, 1387 transitions, 44312 flow [2021-06-11 11:11:50,780 INFO L129 PetriNetUnfolder]: 4956/19629 cut-off events. [2021-06-11 11:11:50,780 INFO L130 PetriNetUnfolder]: For 940672/943627 co-relation queries the response was YES. [2021-06-11 11:11:51,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189014 conditions, 19629 events. 4956/19629 cut-off events. For 940672/943627 co-relation queries the response was YES. Maximal size of possible extension queue 1371. Compared 278616 event pairs, 1352 based on Foata normal form. 830/19647 useless extension candidates. Maximal degree in co-relation 188326. Up to 3381 conditions per place. [2021-06-11 11:11:51,338 INFO L151 LiptonReduction]: Number of co-enabled transitions 7340 [2021-06-11 11:11:52,978 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:11:52,978 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:11:52,979 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8162 [2021-06-11 11:11:52,979 INFO L480 AbstractCegarLoop]: Abstraction has has 471 places, 1387 transitions, 44312 flow [2021-06-11 11:11:52,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 55.46153846153846) internal successors, (721), 13 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:52,979 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:11:52,979 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] [2021-06-11 11:11:52,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-11 11:11:52,979 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:11:52,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:11:52,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1256237234, now seen corresponding path program 9 times [2021-06-11 11:11:52,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:11:52,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907682208] [2021-06-11 11:11:52,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:11:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:11:52,996 INFO L142 QuantifierPusher]: treesize reduction 26, result has 59.4 percent of original size [2021-06-11 11:11:52,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 11:11:53,010 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-11 11:11:53,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:11:53,012 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-06-11 11:11:53,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:11:53,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:53,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:11:53,023 INFO L142 QuantifierPusher]: treesize reduction 24, result has 45.5 percent of original size [2021-06-11 11:11:53,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 11:11:53,035 INFO L142 QuantifierPusher]: treesize reduction 24, result has 51.0 percent of original size [2021-06-11 11:11:53,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 11:11:53,048 INFO L142 QuantifierPusher]: treesize reduction 11, result has 66.7 percent of original size [2021-06-11 11:11:53,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:11:53,052 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size [2021-06-11 11:11:53,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 11:11:53,065 INFO L142 QuantifierPusher]: treesize reduction 10, result has 66.7 percent of original size [2021-06-11 11:11:53,066 INFO L147 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size 14 [2021-06-11 11:11:53,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:53,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:11:53,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:11:53,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:11:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:11:53,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907682208] [2021-06-11 11:11:53,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:11:53,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:11:53,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684836139] [2021-06-11 11:11:53,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:11:53,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:11:53,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:11:53,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:11:53,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:11:53,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 1387 transitions, 44312 flow. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:11:53,086 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:11:53,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:11:53,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:12:03,293 INFO L129 PetriNetUnfolder]: 5397/20018 cut-off events. [2021-06-11 11:12:03,294 INFO L130 PetriNetUnfolder]: For 1040643/1043374 co-relation queries the response was YES. [2021-06-11 11:12:03,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203444 conditions, 20018 events. 5397/20018 cut-off events. For 1040643/1043374 co-relation queries the response was YES. Maximal size of possible extension queue 1584. Compared 276923 event pairs, 1697 based on Foata normal form. 653/19934 useless extension candidates. Maximal degree in co-relation 202565. Up to 9281 conditions per place. [2021-06-11 11:12:03,681 INFO L132 encePairwiseOnDemand]: 68/83 looper letters, 1105 selfloop transitions, 286 changer transitions 82/1565 dead transitions. [2021-06-11 11:12:03,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 1565 transitions, 52428 flow [2021-06-11 11:12:03,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 11:12:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 11:12:03,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 633 transitions. [2021-06-11 11:12:03,682 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7626506024096386 [2021-06-11 11:12:03,682 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 633 transitions. [2021-06-11 11:12:03,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 633 transitions. [2021-06-11 11:12:03,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:12:03,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 633 transitions. [2021-06-11 11:12:03,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:03,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:03,683 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:03,683 INFO L185 Difference]: Start difference. First operand has 471 places, 1387 transitions, 44312 flow. Second operand 10 states and 633 transitions. [2021-06-11 11:12:03,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 1565 transitions, 52428 flow [2021-06-11 11:12:11,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 1565 transitions, 52076 flow, removed 138 selfloop flow, removed 1 redundant places. [2021-06-11 11:12:11,395 INFO L241 Difference]: Finished difference. Result has 487 places, 1423 transitions, 46170 flow [2021-06-11 11:12:11,396 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=42789, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1088, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=46170, PETRI_PLACES=487, PETRI_TRANSITIONS=1423} [2021-06-11 11:12:11,396 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 439 predicate places. [2021-06-11 11:12:11,396 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:12:11,396 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 487 places, 1423 transitions, 46170 flow [2021-06-11 11:12:11,396 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 487 places, 1423 transitions, 46170 flow [2021-06-11 11:12:11,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 485 places, 1423 transitions, 46170 flow [2021-06-11 11:12:16,781 INFO L129 PetriNetUnfolder]: 4388/18127 cut-off events. [2021-06-11 11:12:16,781 INFO L130 PetriNetUnfolder]: For 852219/854797 co-relation queries the response was YES. [2021-06-11 11:12:17,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172348 conditions, 18127 events. 4388/18127 cut-off events. For 852219/854797 co-relation queries the response was YES. Maximal size of possible extension queue 1322. Compared 257360 event pairs, 1324 based on Foata normal form. 799/18142 useless extension candidates. Maximal degree in co-relation 172139. Up to 2913 conditions per place. [2021-06-11 11:12:17,532 INFO L151 LiptonReduction]: Number of co-enabled transitions 6938 [2021-06-11 11:12:19,519 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:12:19,519 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:12:19,519 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8123 [2021-06-11 11:12:19,520 INFO L480 AbstractCegarLoop]: Abstraction has has 485 places, 1423 transitions, 46170 flow [2021-06-11 11:12:19,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:19,520 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:12:19,520 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] [2021-06-11 11:12:19,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-11 11:12:19,520 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:12:19,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:12:19,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1700351918, now seen corresponding path program 10 times [2021-06-11 11:12:19,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:12:19,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904520194] [2021-06-11 11:12:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:12:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:12:19,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:19,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:12:19,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:19,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:12:19,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:19,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 11:12:19,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:19,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 11:12:19,543 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-06-11 11:12:19,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:12:19,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:19,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:12:19,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:19,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:12:19,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:12:19,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904520194] [2021-06-11 11:12:19,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:12:19,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:12:19,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942900457] [2021-06-11 11:12:19,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 11:12:19,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:12:19,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 11:12:19,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-11 11:12:19,554 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:12:19,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1423 transitions, 46170 flow. Second operand has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:12:19,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:12:19,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:12:19,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:12:28,207 INFO L129 PetriNetUnfolder]: 4255/16201 cut-off events. [2021-06-11 11:12:28,207 INFO L130 PetriNetUnfolder]: For 829605/831337 co-relation queries the response was YES. [2021-06-11 11:12:28,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164489 conditions, 16201 events. 4255/16201 cut-off events. For 829605/831337 co-relation queries the response was YES. Maximal size of possible extension queue 1464. Compared 221834 event pairs, 1192 based on Foata normal form. 759/16325 useless extension candidates. Maximal degree in co-relation 164269. Up to 2204 conditions per place. [2021-06-11 11:12:28,490 INFO L132 encePairwiseOnDemand]: 69/83 looper letters, 503 selfloop transitions, 685 changer transitions 307/1552 dead transitions. [2021-06-11 11:12:28,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 1552 transitions, 53077 flow [2021-06-11 11:12:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 11:12:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 11:12:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 829 transitions. [2021-06-11 11:12:28,492 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.768303985171455 [2021-06-11 11:12:28,492 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 829 transitions. [2021-06-11 11:12:28,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 829 transitions. [2021-06-11 11:12:28,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:12:28,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 829 transitions. [2021-06-11 11:12:28,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 63.76923076923077) internal successors, (829), 13 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:28,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:28,493 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:28,493 INFO L185 Difference]: Start difference. First operand has 485 places, 1423 transitions, 46170 flow. Second operand 13 states and 829 transitions. [2021-06-11 11:12:28,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 1552 transitions, 53077 flow [2021-06-11 11:12:34,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 1552 transitions, 52130 flow, removed 264 selfloop flow, removed 6 redundant places. [2021-06-11 11:12:34,702 INFO L241 Difference]: Finished difference. Result has 496 places, 1155 transitions, 39418 flow [2021-06-11 11:12:34,702 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=41980, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=624, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=649, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=39418, PETRI_PLACES=496, PETRI_TRANSITIONS=1155} [2021-06-11 11:12:34,702 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 448 predicate places. [2021-06-11 11:12:34,703 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:12:34,703 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 496 places, 1155 transitions, 39418 flow [2021-06-11 11:12:34,703 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 496 places, 1155 transitions, 39418 flow [2021-06-11 11:12:34,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 481 places, 1155 transitions, 39418 flow [2021-06-11 11:12:37,039 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[][19], [Black: 500#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 502#(and (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 504#(and (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 506#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 491#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 508#(and (<= 1 n3) (<= n2 n1) (< n3 n1)), Black: 493#(and (<= 1 n1) (<= 0 n3)), Black: 510#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), 10#thread1EXITtrue, 522#true, Black: 528#(and (<= n1 n2) (<= 1 n1) (< n2 (+ n1 1))), Black: 530#(and (<= n1 n2) (<= 1 n1) (<= n3 n1) (< n2 (+ n1 1))), Black: 525#(and (<= n1 n2) (<= 0 n1) (<= n2 n1) (<= n3 n1)), Black: 526#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 527#(and (<= 1 n1) (<= (+ n2 1) n1) (<= n1 (+ n2 1))), Black: 539#e1, 32#L77true, 548#(and (<= 1 n3) (<= 0 n1)), 38#L64true, 44#L49true, Black: 544#(and (<= n1 n3) (<= 0 n1) (<= n2 n1)), Black: 546#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 547#(and (<= 0 n1) (<= 0 n3)), Black: 549#(and (<= 1 n3) (<= 1 n1)), Black: 550#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 552#(and (<= n1 n3) (<= 1 n3) (<= 0 n1) (<= n2 n1)), Black: 554#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), Black: 556#(and (<= 1 n3) (<= 0 n1) (<= n2 n3) (<= n2 n1)), Black: 558#(and (<= 1 n3) (<= 1 n1) (<= n2 n3) (<= n2 n1)), 67#true, Black: 560#(and (<= 1 n3) (<= 0 n1) (<= n2 n1)), Black: 562#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 564#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n3)), Black: 566#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n1)), 590#(and (<= 0 n1) (<= 1 n2)), Black: 69#(and (<= i 0) (<= 0 i)), 95#true, Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 99#(and (<= (+ n3 1) n1) (<= 1 n1) (= n2 n1)), Black: 101#(and (<= 1 n1) (<= (+ n1 1) n2)), Black: 608#(and (<= 0 n1) (<= n3 n2) (<= 1 n2)), Black: 610#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= 0 n3)), Black: 612#(and (<= 1 n1) (<= n3 n2) (<= 1 n2)), Black: 614#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= n2 n3)), Black: 618#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2)), Black: 111#e2, Black: 588#(and (<= 0 n1) (<= n3 n2) (<= 0 n2)), Black: 591#(and (<= 1 n1) (<= 1 n2)), Black: 592#(and (< n1 (+ n2 1)) (<= 1 n1)), Black: 116#e3, Black: 598#(and (<= 0 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 602#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 604#(and (<= 0 n1) (= n3 n2) (<= 1 n2)), 637#true, 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), Black: 640#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 641#(and (<= 0 n1) (<= n2 (+ n1 1)) (<= (+ n1 1) n2)), Black: 642#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n2 n1)), 655#(and (<= n2 n3) (<= 1 n2)), Black: 650#(and (<= n3 n2) (<= n2 n3) (<= 0 n2)), 164#(and (<= n2 n3) (<= 1 n2) (<= 2 n3)), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), 681#(and (<= 1 n3) (<= 1 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 675#(and (<= (+ n3 1) n1) (<= 0 n3) (<= 1 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 677#(and (<= 0 n3) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), Black: 679#(and (= n3 n1) (<= 1 n1) (<= 1 n2)), Black: 664#(and (= n3 n1) (<= 1 n1) (<= 0 n2)), Black: 665#(and (<= 0 n3) (<= 0 n2)), Black: 671#(and (<= (+ n3 1) n1) (<= 0 n3) (<= 0 n2)), 186#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), 706#(and (<= n1 n2) (<= 1 n3) (<= 0 n1)), Black: 196#(and (<= 1 i2) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= i2 1) (<= i1 0) (<= 0 i1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, Black: 704#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 708#(and (<= 1 n3) (<= 0 n1) (<= 0 n2)), Black: 710#(and (<= 1 n3) (<= 1 n1) (<= 0 n2)), Black: 712#(and (<= n1 n2) (<= 1 n3) (<= 1 n1)), Black: 714#(and (< n1 (+ n3 1)) (<= 1 n1) (<= 0 n2)), Black: 716#(and (<= n1 n2) (< n1 (+ n3 1)) (<= 1 n1)), Black: 702#(and (<= n1 n2) (<= 0 n1) (<= 0 n3)), Black: 733#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 205#(and (<= n1 n3) (<= n2 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n2 n1) (<= n3 n1)), Black: 789#(and (<= 0 n3) (<= n2 n1) (<= n3 n1)), Black: 792#(and (<= 1 n3) (<= n3 n2)), 813#(and (<= n1 n2) (<= 1 n3) (<= 0 n2)), Black: 817#(and (<= n1 n2) (<= 1 n3) (<= 1 n2)), Black: 819#(and (<= n1 n2) (<= 1 n3) (<= (+ n3 1) n2)), Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 814#(and (<= 1 n3) (<= 1 n2)), Black: 311#(and (<= i2 0) (<= i1 1) (< 2 i) (<= i 3) (<= i3 2) (<= 2 i3) (<= 0 i2) (<= 1 i1)), Black: 815#(and (<= 1 n3) (<= (+ n3 1) n2)), 316#true, 832#(and (<= n1 n2) (<= 0 n2) (<= (+ n2 1) n3)), Black: 833#(and (<= 1 n3) (= n3 n2)), Black: 834#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 829#(<= 0 n2), Black: 830#(and (<= n2 n3) (<= 0 n2)), Black: 831#(and (<= 0 n2) (<= (+ n2 1) n3)), 845#(and (<= n1 n2) (<= 0 n2)), Black: 324#(and (<= 1 n3) (< n2 n1) (<= n3 n2)), Black: 329#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (< n2 (+ n1 1)) (or (<= n1 n2) (<= (+ n3 1) n2))), Black: 331#(and (<= 1 n3) (< n2 n1) (= n3 n2)), 342#true, Black: 848#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 849#(and (<= 1 n3) (<= n3 n2)), Black: 850#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 852#(and (<= n1 n2) (<= 1 n3) (<= n3 n2) (<= n2 n3)), Black: 854#(and (<= n1 n2) (<= 1 n3) (<= (+ n3 1) n2)), Black: 844#(<= 0 n2), Black: 846#(and (<= n1 n2) (<= n2 n3) (<= 0 n2)), Black: 847#(and (<= n1 n2) (<= 0 n2) (<= (+ n2 1) n3)), Black: 347#(and (< n3 (+ n2 1)) (< 0 n2) (<= n2 n3)), 865#true, 354#true, Black: 881#(and (<= n3 n1) (<= 0 n2) (<= (+ n2 1) n3)), Black: 868#(and (<= n2 n3) (<= n3 n1) (<= 0 n2)), Black: 869#(and (<= n2 n1) (<= n3 n1) (<= 0 n2)), Black: 870#(and (<= (+ n3 1) n1) (<= (+ n2 1) n1) (<= 0 n2)), Black: 887#(and (<= n1 n2) (<= 0 n2) (<= (+ n2 1) n3)), Black: 872#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 369#(and (<= 1 n3) (<= n2 n3) (< n3 (+ n1 1))), Black: 371#(and (<= 1 n3) (<= n2 n1) (< n3 (+ n1 1))), Black: 373#(and (<= 1 n3) (<= n3 n2) (<= n2 n3) (< n3 (+ n1 1))), Black: 876#(and (= n3 n2) (<= 2 n3)), Black: 358#(and (<= 0 n3) (<= n2 n3) (<= n3 n1)), Black: 879#(and (<= (+ n3 1) n1) (<= n2 n3) (<= 0 n2)), 902#true, Black: 377#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 361#(and (<= (+ n3 1) n1) (<= 0 n3)), Black: 362#(and (<= 1 n3) (< n3 (+ n1 1))), Black: 379#(and (<= 1 n3) (<= n2 n1) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 367#(and (<= (+ n3 1) n1) (<= 0 n3) (<= n2 n1)), Black: 912#(and (<= n1 n2) (<= n1 0) (<= n3 (+ n1 1)) (<= 0 n1) (<= (+ n2 1) n3)), Black: 914#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n1)), Black: 904#(and (<= n1 0) (<= n2 n1) (= n3 n2) (<= 0 n2)), Black: 905#(and (<= n1 0) (<= 0 n3) (<= n3 n1)), Black: 906#(and (<= n1 0) (<= n3 (+ n1 1)) (<= 0 n1) (<= (+ n1 1) n3)), Black: 908#(and (<= 1 n3) (<= n2 n1) (<= n3 n1)), Black: 909#(and (<= 1 n3) (<= (+ n3 1) n1) (<= (+ n2 1) n1)), Black: 910#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 400#(and (<= 1 i) (<= i 1)), Black: 406#(and (<= 1 i3) (<= 1 i) (<= i3 1) (<= i 1)), Black: 412#(and (<= 2 i1) (< 2 i) (<= i 3) (<= 1 i3) (<= i3 1) (<= i1 2)), 933#(and (<= n1 n3) (<= 1 n3) (<= n2 n3)), 429#(and (<= 0 n1) (<= 0 n3) (<= n2 n3)), Black: 930#(and (<= 1 n3) (<= n3 n1)), Black: 931#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 935#(and (<= n1 n3) (<= 1 n3) (<= n2 n3) (<= n3 n1)), Black: 937#(and (<= 1 n3) (<= n2 n3)), Black: 939#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n3)), Black: 941#(and (<= 1 n3) (<= n2 n3) (<= n3 n1)), Black: 433#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 435#(and (<= n1 n2) (<= 1 n1) (<= n2 n3)), Black: 437#(and (<= 1 n3) (<= 1 n1) (<= n2 n3)), Black: 422#(and (<= 0 n1) (<= 0 n3)), Black: 423#(and (<= 1 n1) (<= 0 n3)), Black: 424#(and (<= 1 n3) (<= 1 n1)), Black: 425#(and (<= n1 n3) (<= 1 n1)), Black: 427#(and (<= n1 n2) (<= 0 n1) (<= n2 n3)), Black: 431#(and (<= 1 n1) (<= 0 n3) (<= n2 n3)), 459#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), Black: 453#(and (<= n2 n3) (<= 0 n2)), Black: 454#(and (<= 0 n3) (<= 0 n2)), Black: 455#(and (<= 1 n3) (<= 0 n2)), Black: 456#(and (<= 1 n3) (<= 1 n2)), Black: 457#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 461#(and (= n3 n2) (<= 1 n2)), Black: 477#(and (<= n2 n3) (<= 0 n2)), Black: 478#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 479#(and (< n2 (+ n3 1)) (<= 1 n2)), 492#(and (<= 0 n1) (<= 0 n3))]) [2021-06-11 11:12:37,039 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2021-06-11 11:12:37,039 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-06-11 11:12:37,039 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-06-11 11:12:37,039 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2021-06-11 11:12:38,106 INFO L129 PetriNetUnfolder]: 2980/12187 cut-off events. [2021-06-11 11:12:38,106 INFO L130 PetriNetUnfolder]: For 607876/609384 co-relation queries the response was YES. [2021-06-11 11:12:38,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120115 conditions, 12187 events. 2980/12187 cut-off events. For 607876/609384 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 164310 event pairs, 1019 based on Foata normal form. 423/12015 useless extension candidates. Maximal degree in co-relation 119798. Up to 1696 conditions per place. [2021-06-11 11:12:38,447 INFO L151 LiptonReduction]: Number of co-enabled transitions 5202 [2021-06-11 11:12:39,684 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:12:39,684 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:12:39,684 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4981 [2021-06-11 11:12:39,685 INFO L480 AbstractCegarLoop]: Abstraction has has 481 places, 1155 transitions, 39418 flow [2021-06-11 11:12:39,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:12:39,685 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:12:39,685 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] [2021-06-11 11:12:39,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-11 11:12:39,685 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:12:39,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:12:39,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1795591576, now seen corresponding path program 11 times [2021-06-11 11:12:39,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:12:39,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657116915] [2021-06-11 11:12:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:12:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:12:39,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:39,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:12:39,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:12:39,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:39,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:12:39,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:39,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:12:39,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:39,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:12:39,713 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-06-11 11:12:39,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:12:39,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:39,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:12:39,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:39,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:12:39,724 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-11 11:12:39,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:12:39,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:39,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:12:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:12:39,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657116915] [2021-06-11 11:12:39,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:12:39,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 11:12:39,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567499172] [2021-06-11 11:12:39,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 11:12:39,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:12:39,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 11:12:39,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-11 11:12:39,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:12:39,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 1155 transitions, 39418 flow. Second operand has 7 states, 7 states have (on average 56.714285714285715) internal successors, (397), 7 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:39,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:12:39,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:12:39,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:12:45,719 INFO L129 PetriNetUnfolder]: 3403/12700 cut-off events. [2021-06-11 11:12:45,719 INFO L130 PetriNetUnfolder]: For 705853/707756 co-relation queries the response was YES. [2021-06-11 11:12:45,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135129 conditions, 12700 events. 3403/12700 cut-off events. For 705853/707756 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 166123 event pairs, 1170 based on Foata normal form. 326/12522 useless extension candidates. Maximal degree in co-relation 134811. Up to 6739 conditions per place. [2021-06-11 11:12:45,950 INFO L132 encePairwiseOnDemand]: 73/83 looper letters, 1011 selfloop transitions, 135 changer transitions 0/1203 dead transitions. [2021-06-11 11:12:45,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 1203 transitions, 43178 flow [2021-06-11 11:12:45,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 11:12:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 11:12:45,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 620 transitions. [2021-06-11 11:12:45,951 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7469879518072289 [2021-06-11 11:12:45,951 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 620 transitions. [2021-06-11 11:12:45,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 620 transitions. [2021-06-11 11:12:45,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:12:45,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 620 transitions. [2021-06-11 11:12:45,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:45,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:45,952 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:45,952 INFO L185 Difference]: Start difference. First operand has 481 places, 1155 transitions, 39418 flow. Second operand 10 states and 620 transitions. [2021-06-11 11:12:45,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 1203 transitions, 43178 flow [2021-06-11 11:12:50,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 1203 transitions, 42031 flow, removed 346 selfloop flow, removed 22 redundant places. [2021-06-11 11:12:50,814 INFO L241 Difference]: Finished difference. Result has 474 places, 1170 transitions, 39363 flow [2021-06-11 11:12:50,815 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=38320, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1020, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=39363, PETRI_PLACES=474, PETRI_TRANSITIONS=1170} [2021-06-11 11:12:50,815 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 426 predicate places. [2021-06-11 11:12:50,815 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:12:50,815 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 474 places, 1170 transitions, 39363 flow [2021-06-11 11:12:50,816 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 474 places, 1170 transitions, 39363 flow [2021-06-11 11:12:50,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 474 places, 1170 transitions, 39363 flow [2021-06-11 11:12:54,064 INFO L129 PetriNetUnfolder]: 2934/12169 cut-off events. [2021-06-11 11:12:54,064 INFO L130 PetriNetUnfolder]: For 580027/581529 co-relation queries the response was YES. [2021-06-11 11:12:54,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117786 conditions, 12169 events. 2934/12169 cut-off events. For 580027/581529 co-relation queries the response was YES. Maximal size of possible extension queue 1026. Compared 164571 event pairs, 980 based on Foata normal form. 490/12077 useless extension candidates. Maximal degree in co-relation 117014. Up to 1674 conditions per place. [2021-06-11 11:12:54,408 INFO L151 LiptonReduction]: Number of co-enabled transitions 5246 [2021-06-11 11:12:55,759 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:12:55,760 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:12:55,760 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4945 [2021-06-11 11:12:55,760 INFO L480 AbstractCegarLoop]: Abstraction has has 474 places, 1170 transitions, 39363 flow [2021-06-11 11:12:55,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 56.714285714285715) internal successors, (397), 7 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:55,760 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:12:55,760 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] [2021-06-11 11:12:55,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-11 11:12:55,760 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:12:55,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:12:55,761 INFO L82 PathProgramCache]: Analyzing trace with hash 372305340, now seen corresponding path program 12 times [2021-06-11 11:12:55,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:12:55,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637954552] [2021-06-11 11:12:55,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:12:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:12:55,780 INFO L142 QuantifierPusher]: treesize reduction 27, result has 46.0 percent of original size [2021-06-11 11:12:55,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 11:12:55,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:55,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:12:55,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:55,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:12:55,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:55,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:12:55,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:55,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:12:55,800 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-06-11 11:12:55,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:12:55,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:55,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:12:55,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:55,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:12:55,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:55,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:12:55,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:55,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:12:55,829 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-06-11 11:12:55,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:12:55,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:12:55,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:12:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:12:55,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637954552] [2021-06-11 11:12:55,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:12:55,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-11 11:12:55,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73949247] [2021-06-11 11:12:55,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 11:12:55,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:12:55,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 11:12:55,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-11 11:12:55,849 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:12:55,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 1170 transitions, 39363 flow. Second operand has 11 states, 11 states have (on average 55.72727272727273) internal successors, (613), 11 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:12:55,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:12:55,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:12:55,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:13:01,853 INFO L129 PetriNetUnfolder]: 3411/12662 cut-off events. [2021-06-11 11:13:01,854 INFO L130 PetriNetUnfolder]: For 673389/675260 co-relation queries the response was YES. [2021-06-11 11:13:02,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132654 conditions, 12662 events. 3411/12662 cut-off events. For 673389/675260 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 165375 event pairs, 1173 based on Foata normal form. 352/12495 useless extension candidates. Maximal degree in co-relation 131895. Up to 6349 conditions per place. [2021-06-11 11:13:02,067 INFO L132 encePairwiseOnDemand]: 70/83 looper letters, 1008 selfloop transitions, 173 changer transitions 9/1247 dead transitions. [2021-06-11 11:13:02,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1247 transitions, 43851 flow [2021-06-11 11:13:02,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 11:13:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 11:13:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 806 transitions. [2021-06-11 11:13:02,068 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7469879518072289 [2021-06-11 11:13:02,068 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 806 transitions. [2021-06-11 11:13:02,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 806 transitions. [2021-06-11 11:13:02,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:13:02,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 806 transitions. [2021-06-11 11:13:02,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 62.0) internal successors, (806), 13 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:02,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:02,070 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:02,070 INFO L185 Difference]: Start difference. First operand has 474 places, 1170 transitions, 39363 flow. Second operand 13 states and 806 transitions. [2021-06-11 11:13:02,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1247 transitions, 43851 flow [2021-06-11 11:13:06,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 1247 transitions, 43559 flow, removed 73 selfloop flow, removed 6 redundant places. [2021-06-11 11:13:06,583 INFO L241 Difference]: Finished difference. Result has 485 places, 1184 transitions, 39989 flow [2021-06-11 11:13:06,584 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=39101, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=999, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=39989, PETRI_PLACES=485, PETRI_TRANSITIONS=1184} [2021-06-11 11:13:06,584 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 437 predicate places. [2021-06-11 11:13:06,584 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:13:06,584 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 485 places, 1184 transitions, 39989 flow [2021-06-11 11:13:06,584 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 485 places, 1184 transitions, 39989 flow [2021-06-11 11:13:06,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 485 places, 1184 transitions, 39989 flow [2021-06-11 11:13:09,982 INFO L129 PetriNetUnfolder]: 2934/12294 cut-off events. [2021-06-11 11:13:09,982 INFO L130 PetriNetUnfolder]: For 591109/592604 co-relation queries the response was YES. [2021-06-11 11:13:10,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119638 conditions, 12294 events. 2934/12294 cut-off events. For 591109/592604 co-relation queries the response was YES. Maximal size of possible extension queue 1039. Compared 166986 event pairs, 960 based on Foata normal form. 495/12210 useless extension candidates. Maximal degree in co-relation 118881. Up to 1690 conditions per place. [2021-06-11 11:13:10,325 INFO L151 LiptonReduction]: Number of co-enabled transitions 5342 [2021-06-11 11:13:11,616 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:13:11,616 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:13:11,616 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5032 [2021-06-11 11:13:11,616 INFO L480 AbstractCegarLoop]: Abstraction has has 485 places, 1184 transitions, 39989 flow [2021-06-11 11:13:11,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 55.72727272727273) internal successors, (613), 11 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:11,616 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:13:11,616 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 11:13:11,617 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-11 11:13:11,617 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:13:11,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:13:11,617 INFO L82 PathProgramCache]: Analyzing trace with hash -460032428, now seen corresponding path program 13 times [2021-06-11 11:13:11,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:13:11,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882128130] [2021-06-11 11:13:11,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:13:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:13:11,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:11,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:13:11,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:11,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:13:11,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:11,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:13:11,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:11,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:13:11,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:11,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:13:11,659 INFO L142 QuantifierPusher]: treesize reduction 15, result has 55.9 percent of original size [2021-06-11 11:13:11,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:13:11,668 INFO L142 QuantifierPusher]: treesize reduction 18, result has 57.1 percent of original size [2021-06-11 11:13:11,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 11:13:11,679 INFO L142 QuantifierPusher]: treesize reduction 23, result has 45.2 percent of original size [2021-06-11 11:13:11,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:13:11,685 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-06-11 11:13:11,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:13:11,693 INFO L142 QuantifierPusher]: treesize reduction 49, result has 19.7 percent of original size [2021-06-11 11:13:11,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:13:11,702 INFO L142 QuantifierPusher]: treesize reduction 27, result has 3.6 percent of original size [2021-06-11 11:13:11,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:13:11,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:11,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:13:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:13:11,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882128130] [2021-06-11 11:13:11,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:13:11,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:13:11,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948460913] [2021-06-11 11:13:11,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:13:11,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:13:11,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:13:11,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:13:11,704 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:13:11,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1184 transitions, 39989 flow. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:11,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:13:11,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:13:11,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:13:17,914 INFO L129 PetriNetUnfolder]: 3461/12921 cut-off events. [2021-06-11 11:13:17,914 INFO L130 PetriNetUnfolder]: For 692391/694154 co-relation queries the response was YES. [2021-06-11 11:13:18,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135440 conditions, 12921 events. 3461/12921 cut-off events. For 692391/694154 co-relation queries the response was YES. Maximal size of possible extension queue 1119. Compared 169785 event pairs, 1198 based on Foata normal form. 309/12717 useless extension candidates. Maximal degree in co-relation 134667. Up to 6900 conditions per place. [2021-06-11 11:13:18,141 INFO L132 encePairwiseOnDemand]: 71/83 looper letters, 1074 selfloop transitions, 100 changer transitions 26/1253 dead transitions. [2021-06-11 11:13:18,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 1253 transitions, 44571 flow [2021-06-11 11:13:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 11:13:18,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 11:13:18,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 741 transitions. [2021-06-11 11:13:18,142 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7439759036144579 [2021-06-11 11:13:18,142 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 741 transitions. [2021-06-11 11:13:18,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 741 transitions. [2021-06-11 11:13:18,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:13:18,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 741 transitions. [2021-06-11 11:13:18,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 61.75) internal successors, (741), 12 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:18,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:18,144 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 83.0) internal successors, (1079), 13 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:18,144 INFO L185 Difference]: Start difference. First operand has 485 places, 1184 transitions, 39989 flow. Second operand 12 states and 741 transitions. [2021-06-11 11:13:18,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 1253 transitions, 44571 flow [2021-06-11 11:13:22,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 1253 transitions, 44264 flow, removed 68 selfloop flow, removed 8 redundant places. [2021-06-11 11:13:22,982 INFO L241 Difference]: Finished difference. Result has 498 places, 1178 transitions, 40366 flow [2021-06-11 11:13:22,983 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=39214, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1066, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=40366, PETRI_PLACES=498, PETRI_TRANSITIONS=1178} [2021-06-11 11:13:22,983 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 450 predicate places. [2021-06-11 11:13:22,983 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:13:22,983 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 498 places, 1178 transitions, 40366 flow [2021-06-11 11:13:22,983 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 498 places, 1178 transitions, 40366 flow [2021-06-11 11:13:22,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 497 places, 1178 transitions, 40366 flow [2021-06-11 11:13:26,492 INFO L129 PetriNetUnfolder]: 3000/12476 cut-off events. [2021-06-11 11:13:26,492 INFO L130 PetriNetUnfolder]: For 617045/618601 co-relation queries the response was YES. [2021-06-11 11:13:26,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121515 conditions, 12476 events. 3000/12476 cut-off events. For 617045/618601 co-relation queries the response was YES. Maximal size of possible extension queue 1011. Compared 169733 event pairs, 994 based on Foata normal form. 520/12431 useless extension candidates. Maximal degree in co-relation 120737. Up to 1711 conditions per place. [2021-06-11 11:13:27,093 INFO L151 LiptonReduction]: Number of co-enabled transitions 5186 [2021-06-11 11:13:28,341 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:13:28,341 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:13:28,341 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5358 [2021-06-11 11:13:28,342 INFO L480 AbstractCegarLoop]: Abstraction has has 497 places, 1178 transitions, 40366 flow [2021-06-11 11:13:28,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:28,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:13:28,342 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] [2021-06-11 11:13:28,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-11 11:13:28,342 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:13:28,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:13:28,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1439349716, now seen corresponding path program 14 times [2021-06-11 11:13:28,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:13:28,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479070528] [2021-06-11 11:13:28,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:13:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:13:28,361 INFO L142 QuantifierPusher]: treesize reduction 21, result has 59.6 percent of original size [2021-06-11 11:13:28,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 11:13:28,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:28,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:13:28,373 INFO L142 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size [2021-06-11 11:13:28,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:13:28,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:28,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 11:13:28,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:28,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 11:13:28,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:28,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:13:28,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:28,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:13:28,415 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-06-11 11:13:28,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:13:28,415 INFO L142 QuantifierPusher]: treesize reduction 14, result has 54.8 percent of original size [2021-06-11 11:13:28,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 11:13:28,425 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.9 percent of original size [2021-06-11 11:13:28,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:13:28,436 INFO L142 QuantifierPusher]: treesize reduction 7, result has 74.1 percent of original size [2021-06-11 11:13:28,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 11:13:28,448 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-11 11:13:28,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:13:28,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:28,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:13:28,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:28,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:13:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:13:28,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479070528] [2021-06-11 11:13:28,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:13:28,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-11 11:13:28,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341135356] [2021-06-11 11:13:28,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 11:13:28,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:13:28,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 11:13:28,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-11 11:13:28,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:13:28,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 1178 transitions, 40366 flow. Second operand has 10 states, 10 states have (on average 55.9) internal successors, (559), 10 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:28,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:13:28,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:13:28,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:13:34,652 INFO L129 PetriNetUnfolder]: 3213/12393 cut-off events. [2021-06-11 11:13:34,652 INFO L130 PetriNetUnfolder]: For 689583/690978 co-relation queries the response was YES. [2021-06-11 11:13:34,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132453 conditions, 12393 events. 3213/12393 cut-off events. For 689583/690978 co-relation queries the response was YES. Maximal size of possible extension queue 986. Compared 162629 event pairs, 1102 based on Foata normal form. 302/12245 useless extension candidates. Maximal degree in co-relation 132254. Up to 5456 conditions per place. [2021-06-11 11:13:35,038 INFO L132 encePairwiseOnDemand]: 71/83 looper letters, 969 selfloop transitions, 191 changer transitions 60/1269 dead transitions. [2021-06-11 11:13:35,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 1269 transitions, 45158 flow [2021-06-11 11:13:35,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 11:13:35,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 11:13:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 808 transitions. [2021-06-11 11:13:35,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7488415199258572 [2021-06-11 11:13:35,040 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 808 transitions. [2021-06-11 11:13:35,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 808 transitions. [2021-06-11 11:13:35,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:13:35,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 808 transitions. [2021-06-11 11:13:35,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 62.15384615384615) internal successors, (808), 13 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:35,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:35,041 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:35,041 INFO L185 Difference]: Start difference. First operand has 497 places, 1178 transitions, 40366 flow. Second operand 13 states and 808 transitions. [2021-06-11 11:13:35,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 1269 transitions, 45158 flow [2021-06-11 11:13:39,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 1269 transitions, 44672 flow, removed 193 selfloop flow, removed 6 redundant places. [2021-06-11 11:13:39,691 INFO L241 Difference]: Finished difference. Result has 507 places, 1083 transitions, 37219 flow [2021-06-11 11:13:39,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=37218, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1098, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=912, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=37219, PETRI_PLACES=507, PETRI_TRANSITIONS=1083} [2021-06-11 11:13:39,692 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 459 predicate places. [2021-06-11 11:13:39,692 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:13:39,692 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 1083 transitions, 37219 flow [2021-06-11 11:13:39,692 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 1083 transitions, 37219 flow [2021-06-11 11:13:39,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 506 places, 1083 transitions, 37219 flow [2021-06-11 11:13:42,846 INFO L129 PetriNetUnfolder]: 2818/12014 cut-off events. [2021-06-11 11:13:42,846 INFO L130 PetriNetUnfolder]: For 612862/614285 co-relation queries the response was YES. [2021-06-11 11:13:43,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118802 conditions, 12014 events. 2818/12014 cut-off events. For 612862/614285 co-relation queries the response was YES. Maximal size of possible extension queue 935. Compared 163437 event pairs, 904 based on Foata normal form. 468/12032 useless extension candidates. Maximal degree in co-relation 118023. Up to 1623 conditions per place. [2021-06-11 11:13:43,414 INFO L151 LiptonReduction]: Number of co-enabled transitions 4982 [2021-06-11 11:13:44,578 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:13:44,578 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:13:44,578 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4886 [2021-06-11 11:13:44,578 INFO L480 AbstractCegarLoop]: Abstraction has has 506 places, 1083 transitions, 37219 flow [2021-06-11 11:13:44,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 55.9) internal successors, (559), 10 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:44,578 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:13:44,578 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] [2021-06-11 11:13:44,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-11 11:13:44,578 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:13:44,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:13:44,579 INFO L82 PathProgramCache]: Analyzing trace with hash 772027921, now seen corresponding path program 1 times [2021-06-11 11:13:44,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:13:44,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529930606] [2021-06-11 11:13:44,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:13:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:13:44,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:44,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:13:44,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:44,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:13:44,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:44,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:13:44,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:44,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:13:44,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:44,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:13:44,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:44,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 11:13:44,640 INFO L142 QuantifierPusher]: treesize reduction 10, result has 47.4 percent of original size [2021-06-11 11:13:44,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:13:44,646 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-06-11 11:13:44,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:13:44,651 INFO L142 QuantifierPusher]: treesize reduction 15, result has 57.1 percent of original size [2021-06-11 11:13:44,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 11:13:44,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:44,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:13:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:13:44,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529930606] [2021-06-11 11:13:44,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:13:44,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:13:44,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056545105] [2021-06-11 11:13:44,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:13:44,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:13:44,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:13:44,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:13:44,666 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:13:44,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 1083 transitions, 37219 flow. Second operand has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:44,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:13:44,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:13:44,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:13:50,115 INFO L129 PetriNetUnfolder]: 2964/11095 cut-off events. [2021-06-11 11:13:50,116 INFO L130 PetriNetUnfolder]: For 617180/618625 co-relation queries the response was YES. [2021-06-11 11:13:50,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118659 conditions, 11095 events. 2964/11095 cut-off events. For 617180/618625 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 140865 event pairs, 1177 based on Foata normal form. 237/10941 useless extension candidates. Maximal degree in co-relation 117935. Up to 6047 conditions per place. [2021-06-11 11:13:50,311 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 867 selfloop transitions, 33 changer transitions 143/1092 dead transitions. [2021-06-11 11:13:50,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1092 transitions, 39166 flow [2021-06-11 11:13:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 11:13:50,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 11:13:50,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 775 transitions. [2021-06-11 11:13:50,313 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7182576459684893 [2021-06-11 11:13:50,313 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 775 transitions. [2021-06-11 11:13:50,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 775 transitions. [2021-06-11 11:13:50,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:13:50,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 775 transitions. [2021-06-11 11:13:50,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 59.61538461538461) internal successors, (775), 13 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:50,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:50,314 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 83.0) internal successors, (1162), 14 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:50,314 INFO L185 Difference]: Start difference. First operand has 506 places, 1083 transitions, 37219 flow. Second operand 13 states and 775 transitions. [2021-06-11 11:13:50,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1092 transitions, 39166 flow [2021-06-11 11:13:54,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 1092 transitions, 38849 flow, removed 96 selfloop flow, removed 5 redundant places. [2021-06-11 11:13:54,605 INFO L241 Difference]: Finished difference. Result has 517 places, 948 transitions, 31951 flow [2021-06-11 11:13:54,606 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=35646, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1019, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=31951, PETRI_PLACES=517, PETRI_TRANSITIONS=948} [2021-06-11 11:13:54,606 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 469 predicate places. [2021-06-11 11:13:54,606 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:13:54,606 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 517 places, 948 transitions, 31951 flow [2021-06-11 11:13:54,606 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 517 places, 948 transitions, 31951 flow [2021-06-11 11:13:54,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 497 places, 948 transitions, 31951 flow [2021-06-11 11:13:57,610 INFO L129 PetriNetUnfolder]: 2539/10587 cut-off events. [2021-06-11 11:13:57,610 INFO L130 PetriNetUnfolder]: For 522662/523878 co-relation queries the response was YES. [2021-06-11 11:13:57,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103384 conditions, 10587 events. 2539/10587 cut-off events. For 522662/523878 co-relation queries the response was YES. Maximal size of possible extension queue 833. Compared 140037 event pairs, 827 based on Foata normal form. 370/10546 useless extension candidates. Maximal degree in co-relation 102731. Up to 1486 conditions per place. [2021-06-11 11:13:57,921 INFO L151 LiptonReduction]: Number of co-enabled transitions 4420 [2021-06-11 11:13:58,617 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:13:58,618 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:13:58,618 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4012 [2021-06-11 11:13:58,618 INFO L480 AbstractCegarLoop]: Abstraction has has 497 places, 948 transitions, 31951 flow [2021-06-11 11:13:58,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:58,618 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:13:58,618 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] [2021-06-11 11:13:58,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-11 11:13:58,618 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:13:58,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:13:58,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1799240059, now seen corresponding path program 2 times [2021-06-11 11:13:58,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:13:58,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164593722] [2021-06-11 11:13:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:13:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:13:58,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:58,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:13:58,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:58,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:13:58,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:58,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:13:58,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:58,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:13:58,663 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-11 11:13:58,663 INFO L147 QuantifierPusher]: treesize reduction 3, result has 82.4 percent of original size 14 [2021-06-11 11:13:58,674 INFO L142 QuantifierPusher]: treesize reduction 14, result has 51.7 percent of original size [2021-06-11 11:13:58,674 INFO L147 QuantifierPusher]: treesize reduction 3, result has 80.0 percent of original size 12 [2021-06-11 11:13:58,685 INFO L142 QuantifierPusher]: treesize reduction 10, result has 54.5 percent of original size [2021-06-11 11:13:58,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:13:58,693 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 11:13:58,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:13:58,699 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 11:13:58,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:13:58,706 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-06-11 11:13:58,706 INFO L147 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size 10 [2021-06-11 11:13:58,718 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-06-11 11:13:58,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:13:58,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:13:58,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:13:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:13:58,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164593722] [2021-06-11 11:13:58,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:13:58,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 11:13:58,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420453045] [2021-06-11 11:13:58,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 11:13:58,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:13:58,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 11:13:58,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-06-11 11:13:58,720 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:13:58,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 948 transitions, 31951 flow. Second operand has 12 states, 12 states have (on average 55.583333333333336) internal successors, (667), 12 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:13:58,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:13:58,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:13:58,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:03,173 INFO L129 PetriNetUnfolder]: 2757/10110 cut-off events. [2021-06-11 11:14:03,174 INFO L130 PetriNetUnfolder]: For 554089/555552 co-relation queries the response was YES. [2021-06-11 11:14:03,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107254 conditions, 10110 events. 2757/10110 cut-off events. For 554089/555552 co-relation queries the response was YES. Maximal size of possible extension queue 849. Compared 125880 event pairs, 1121 based on Foata normal form. 220/9953 useless extension candidates. Maximal degree in co-relation 107050. Up to 5634 conditions per place. [2021-06-11 11:14:03,361 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 824 selfloop transitions, 19 changer transitions 50/942 dead transitions. [2021-06-11 11:14:03,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 942 transitions, 33387 flow [2021-06-11 11:14:03,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 11:14:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 11:14:03,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 535 transitions. [2021-06-11 11:14:03,362 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7161981258366801 [2021-06-11 11:14:03,362 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 535 transitions. [2021-06-11 11:14:03,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 535 transitions. [2021-06-11 11:14:03,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:03,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 535 transitions. [2021-06-11 11:14:03,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 59.44444444444444) internal successors, (535), 9 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:03,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:03,363 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:03,363 INFO L185 Difference]: Start difference. First operand has 497 places, 948 transitions, 31951 flow. Second operand 9 states and 535 transitions. [2021-06-11 11:14:03,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 942 transitions, 33387 flow [2021-06-11 11:14:06,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 942 transitions, 31103 flow, removed 195 selfloop flow, removed 36 redundant places. [2021-06-11 11:14:06,910 INFO L241 Difference]: Finished difference. Result has 471 places, 891 transitions, 27903 flow [2021-06-11 11:14:06,910 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=29014, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=930, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=27903, PETRI_PLACES=471, PETRI_TRANSITIONS=891} [2021-06-11 11:14:06,910 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 423 predicate places. [2021-06-11 11:14:06,910 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:06,910 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 471 places, 891 transitions, 27903 flow [2021-06-11 11:14:06,911 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 471 places, 891 transitions, 27903 flow [2021-06-11 11:14:06,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 456 places, 891 transitions, 27903 flow [2021-06-11 11:14:09,225 INFO L129 PetriNetUnfolder]: 2432/9859 cut-off events. [2021-06-11 11:14:09,226 INFO L130 PetriNetUnfolder]: For 421129/422329 co-relation queries the response was YES. [2021-06-11 11:14:09,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91109 conditions, 9859 events. 2432/9859 cut-off events. For 421129/422329 co-relation queries the response was YES. Maximal size of possible extension queue 794. Compared 127780 event pairs, 767 based on Foata normal form. 363/9790 useless extension candidates. Maximal degree in co-relation 90404. Up to 1447 conditions per place. [2021-06-11 11:14:09,504 INFO L151 LiptonReduction]: Number of co-enabled transitions 4174 [2021-06-11 11:14:10,454 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:10,454 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:10,454 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3544 [2021-06-11 11:14:10,454 INFO L480 AbstractCegarLoop]: Abstraction has has 456 places, 891 transitions, 27903 flow [2021-06-11 11:14:10,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 55.583333333333336) internal successors, (667), 12 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:10,455 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:10,455 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] [2021-06-11 11:14:10,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-11 11:14:10,455 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:10,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:10,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1684948305, now seen corresponding path program 3 times [2021-06-11 11:14:10,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:10,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653121735] [2021-06-11 11:14:10,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:10,472 INFO L142 QuantifierPusher]: treesize reduction 32, result has 43.9 percent of original size [2021-06-11 11:14:10,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 11:14:10,482 INFO L142 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size [2021-06-11 11:14:10,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:14:10,484 INFO L142 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size [2021-06-11 11:14:10,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:10,486 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-06-11 11:14:10,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:10,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:10,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:10,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:10,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 11:14:10,504 INFO L142 QuantifierPusher]: treesize reduction 10, result has 54.5 percent of original size [2021-06-11 11:14:10,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:10,513 INFO L142 QuantifierPusher]: treesize reduction 17, result has 41.4 percent of original size [2021-06-11 11:14:10,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:10,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:10,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:10,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:10,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:10,524 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-11 11:14:10,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 11:14:10,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:10,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:10,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:10,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:10,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653121735] [2021-06-11 11:14:10,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:10,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-11 11:14:10,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072345519] [2021-06-11 11:14:10,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 11:14:10,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:10,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 11:14:10,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-11 11:14:10,535 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:14:10,536 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 891 transitions, 27903 flow. Second operand has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:14:10,536 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:10,536 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:14:10,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:13,137 INFO L129 PetriNetUnfolder]: 1797/6265 cut-off events. [2021-06-11 11:14:13,137 INFO L130 PetriNetUnfolder]: For 285412/286607 co-relation queries the response was YES. [2021-06-11 11:14:13,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60547 conditions, 6265 events. 1797/6265 cut-off events. For 285412/286607 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 70118 event pairs, 700 based on Foata normal form. 349/6312 useless extension candidates. Maximal degree in co-relation 60362. Up to 2986 conditions per place. [2021-06-11 11:14:13,232 INFO L132 encePairwiseOnDemand]: 72/83 looper letters, 462 selfloop transitions, 7 changer transitions 196/711 dead transitions. [2021-06-11 11:14:13,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 711 transitions, 22931 flow [2021-06-11 11:14:13,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 11:14:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 11:14:13,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 677 transitions. [2021-06-11 11:14:13,234 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7415115005476451 [2021-06-11 11:14:13,234 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 677 transitions. [2021-06-11 11:14:13,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 677 transitions. [2021-06-11 11:14:13,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:13,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 677 transitions. [2021-06-11 11:14:13,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:13,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:13,235 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:13,235 INFO L185 Difference]: Start difference. First operand has 456 places, 891 transitions, 27903 flow. Second operand 11 states and 677 transitions. [2021-06-11 11:14:13,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 711 transitions, 22931 flow [2021-06-11 11:14:14,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 711 transitions, 21295 flow, removed 179 selfloop flow, removed 42 redundant places. [2021-06-11 11:14:14,734 INFO L241 Difference]: Finished difference. Result has 410 places, 515 transitions, 14080 flow [2021-06-11 11:14:14,735 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=19203, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14080, PETRI_PLACES=410, PETRI_TRANSITIONS=515} [2021-06-11 11:14:14,735 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 362 predicate places. [2021-06-11 11:14:14,735 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:14,735 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 410 places, 515 transitions, 14080 flow [2021-06-11 11:14:14,735 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 410 places, 515 transitions, 14080 flow [2021-06-11 11:14:14,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 326 places, 515 transitions, 14080 flow [2021-06-11 11:14:15,425 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([106] L29-->L30: Formula: (or (= v_n2_2 0) (not (< v_n2_2 v_n1_7))) InVars {n2=v_n2_2, n1=v_n1_7} OutVars{n2=v_n2_2, n1=v_n1_7} AuxVars[] AssignedVars[][197], [Black: 502#(and (<= 1 n1) (<= 0 n3) (<= n2 n1) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 504#(and (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 491#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), Black: 492#(and (<= 0 n1) (<= 0 n3)), 7#L30true, Black: 493#(and (<= 1 n1) (<= 0 n3)), Black: 510#(and (or (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)) (< n3 n1)) (<= 1 n1) (<= 0 n3) (or (<= 1 n3) (and (or (<= (+ n2 1) 0) (<= 1 n2)) (< n2 n1)))), Black: 768#(and (<= n1 (+ n3 1)) (< n2 n1) (< 0 n1)), 522#true, Black: 769#(and (<= 0 n3) (< 0 n1)), Black: 774#(and (<= n1 n3) (< n2 n1) (< 0 n1)), Black: 776#(and (<= n1 n3) (< 0 n1)), Black: 764#(and (<= n1 n3) (<= 0 n1) (<= n3 n1)), Black: 765#(and (<= n1 n3) (<= 0 n1)), Black: 766#(and (<= n1 (+ n3 1)) (< 0 n1)), 18#L47true, Black: 1028#(or (and (<= n1 n3) (<= n3 n1) (<= 2 n3)) (and (<= 1 n1) (<= (+ n1 1) n3))), Black: 1030#(and (<= 1 n1) (or (= n3 n1) (<= (+ n1 1) n3))), Black: 528#(and (<= n1 n2) (<= 1 n1) (< n2 (+ n1 1))), Black: 525#(and (<= n1 n2) (<= 0 n1) (<= n2 n1) (<= n3 n1)), Black: 527#(and (<= 1 n1) (<= (+ n2 1) n1) (<= n1 (+ n2 1))), Black: 539#e1, Black: 271#(and (< 0 n3) (or (<= (+ n3 1) n1) (< n3 (+ n2 1)))), 546#(and (<= 0 n1) (<= 0 n3) (<= n2 n1)), 50#thread3EXITtrue, Black: 817#(and (<= n1 n2) (<= 1 n3) (<= 1 n2)), Black: 819#(and (<= n1 n2) (<= 1 n3) (<= (+ n3 1) n2)), Black: 305#(and (<= i2 0) (<= 2 i) (<= i1 1) (<= i 2) (<= 0 i2) (<= 1 i1)), Black: 814#(and (<= 1 n3) (<= 1 n2)), Black: 815#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 547#(and (<= 0 n1) (<= 0 n3)), Black: 548#(and (<= 1 n3) (<= 0 n1)), Black: 549#(and (<= 1 n3) (<= 1 n1)), 829#(<= 0 n2), Black: 550#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 554#(and (<= n1 n3) (<= 1 n1) (<= n2 n1)), Black: 556#(and (<= 1 n3) (<= 0 n1) (<= n2 n3) (<= n2 n1)), Black: 558#(and (<= 1 n3) (<= 1 n1) (<= n2 n3) (<= n2 n1)), Black: 560#(and (<= 1 n3) (<= 0 n1) (<= n2 n1)), Black: 562#(and (<= 1 n3) (<= 1 n1) (<= n2 n1)), Black: 564#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n3)), Black: 833#(and (<= 1 n3) (= n3 n2)), Black: 566#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n1)), Black: 834#(and (<= 1 n3) (<= (+ n3 1) n2)), 1094#true, Black: 830#(and (<= n2 n3) (<= 0 n2)), Black: 831#(and (<= 0 n2) (<= (+ n2 1) n3)), 844#(<= 0 n2), 79#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), 342#true, Black: 1105#(and (<= n2 n1) (not (= n2 n1)) (<= 1 n2) (<= (+ n3 1) n2)), Black: 848#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 1100#(and (<= n2 n1) (<= 1 n2)), Black: 849#(and (<= 1 n3) (<= n3 n2)), Black: 850#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 852#(and (<= n1 n2) (<= 1 n3) (<= n3 n2) (<= n2 n3)), Black: 69#(and (<= i 0) (<= 0 i)), Black: 854#(and (<= n1 n2) (<= 1 n3) (<= (+ n3 1) n2)), Black: 845#(and (<= n1 n2) (<= 0 n2)), Black: 347#(and (< n3 (+ n2 1)) (< 0 n2) (<= n2 n3)), Black: 847#(and (<= n1 n2) (<= 0 n2) (<= (+ n2 1) n3)), 865#true, 610#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= 0 n3)), 354#true, Black: 98#(and (<= (+ n3 1) n1) (<= 1 n1) (<= (+ n2 1) n1)), Black: 608#(and (<= 0 n1) (<= n3 n2) (<= 1 n2)), Black: 612#(and (<= 1 n1) (<= n3 n2) (<= 1 n2)), Black: 614#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2) (<= n2 n3)), Black: 618#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n3 n2)), Black: 111#e2, Black: 590#(and (<= 0 n1) (<= 1 n2)), Black: 591#(and (<= 1 n1) (<= 1 n2)), Black: 116#e3, Black: 592#(and (< n1 (+ n2 1)) (<= 1 n1)), Black: 598#(and (<= 0 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 881#(and (<= n3 n1) (<= 0 n2) (<= (+ n2 1) n3)), Black: 602#(and (<= 1 n1) (<= n3 n2) (<= 0 n3) (<= 1 n2)), Black: 868#(and (<= n2 n3) (<= n3 n1) (<= 0 n2)), Black: 869#(and (<= n2 n1) (<= n3 n1) (<= 0 n2)), 637#true, Black: 870#(and (<= (+ n3 1) n1) (<= (+ n2 1) n1) (<= 0 n2)), Black: 371#(and (<= 1 n3) (<= n2 n1) (< n3 (+ n1 1))), Black: 640#(and (<= n1 n2) (<= 0 n1) (<= n2 n1)), Black: 358#(and (<= 0 n3) (<= n2 n3) (<= n3 n1)), Black: 879#(and (<= (+ n3 1) n1) (<= n2 n3) (<= 0 n2)), Black: 642#(and (< n1 (+ n2 1)) (<= 1 n1) (<= n2 n1)), 902#true, Black: 377#(and (<= 1 n3) (<= n2 n3) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 361#(and (<= (+ n3 1) n1) (<= 0 n3)), Black: 362#(and (<= 1 n3) (< n3 (+ n1 1))), Black: 379#(and (<= 1 n3) (<= n2 n1) (not (= n3 n1)) (< n3 (+ n1 1))), Black: 131#(and (<= 1 i) (<= i1 0) (<= 0 i1) (<= i 1)), 148#true, Black: 914#(and (<= 1 n3) (<= (+ n3 1) n1) (<= n2 n1)), Black: 905#(and (<= n1 0) (<= 0 n3) (<= n3 n1)), Black: 906#(and (<= n1 0) (<= n3 (+ n1 1)) (<= 0 n1) (<= (+ n1 1) n3)), Black: 908#(and (<= 1 n3) (<= n2 n1) (<= n3 n1)), Black: 909#(and (<= 1 n3) (<= (+ n3 1) n1) (<= (+ n2 1) n1)), Black: 400#(and (<= 1 i) (<= i 1)), 677#(and (<= 0 n3) (<= 1 n2)), Black: 160#(and (<= n1 n2) (<= 1 n2) (<= (+ n3 1) n2)), 423#(and (<= 1 n1) (<= 0 n3)), Black: 150#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 151#(and (<= n1 n2) (<= n3 n2) (<= 0 n2)), Black: 152#(and (<= n3 n2) (<= 0 n2)), Black: 153#(and (<= 1 n2) (<= (+ n3 1) n2)), Black: 154#(and (= n3 n2) (<= 1 n2)), Black: 158#(and (<= n1 n3) (<= 1 n2) (<= (+ n3 1) n2)), Black: 930#(and (<= 1 n3) (<= n3 n1)), Black: 931#(and (<= 1 n3) (<= (+ n3 1) n1)), Black: 681#(and (<= 1 n3) (<= 1 n2)), Black: 935#(and (<= n1 n3) (<= 1 n3) (<= n2 n3) (<= n3 n1)), Black: 937#(and (<= 1 n3) (<= n2 n3)), Black: 433#(and (<= n1 n3) (<= 1 n1) (<= n2 n3)), Black: 422#(and (<= 0 n1) (<= 0 n3)), Black: 425#(and (<= n1 n3) (<= 1 n1)), Black: 429#(and (<= 0 n1) (<= 0 n3) (<= n2 n3)), 704#(and (<= 0 n1) (<= 0 n3) (<= 0 n2)), Black: 431#(and (<= 1 n1) (<= 0 n3) (<= n2 n3)), Black: 960#(and (<= n1 n3) (<= 1 n1) (<= n3 n2) (= n2 n1)), Black: 962#(and (<= 1 n1) (<= n3 n2) (= n2 n1)), 454#(and (<= 0 n3) (<= 0 n2)), Black: 952#(and (<= n1 n3) (<= n3 n2) (<= 0 n2)), Black: 955#(and (<= 1 n2) (<= (+ n3 1) n2) (= n2 n1)), Black: 956#(and (<= 1 n1) (= n2 n1)), Black: 190#(and (<= 1 i2) (<= 2 i) (<= i 2) (<= i2 1) (<= i1 0) (<= 0 i1)), 203#true, Black: 710#(and (<= 1 n3) (<= 1 n1) (<= 0 n2)), Black: 714#(and (< n1 (+ n3 1)) (<= 1 n1) (<= 0 n2)), Black: 455#(and (<= 1 n3) (<= 0 n2)), Black: 456#(and (<= 1 n3) (<= 1 n2)), Black: 457#(and (< n2 (+ n3 1)) (<= 1 n2)), Black: 459#(and (<= 1 n3) (<= n2 n3) (<= 0 n2)), Black: 733#(and (<= 1 n3) (<= (+ n3 1) n2)), Black: 209#(and (<= 0 n3) (or (<= 2 n1) (<= 1 n2)) (<= n3 0)), Black: 216#(and (<= 1 n3) (or (not (= n3 n1)) (not (= n2 0))) (or (<= 2 n1) (<= 1 n2)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 218#(and (<= 1 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), Black: 478#(and (<= 0 n2) (<= (+ n2 1) n3)), Black: 222#(and (<= 1 n3) (<= n2 n3) (or (<= 2 n1) (<= 1 n2)) (not (= n3 n1)) (or (< n3 (+ n1 1)) (<= n3 1))), 751#(and (<= 1 n1) (<= 0 n3) (<= 0 n2)), Black: 995#(and (<= n1 n3) (<= n3 n2) (<= 0 n3) (<= n3 n1)), Black: 996#(and (<= n1 n2) (<= 0 n3) (<= n3 n1)), 500#(and (<= 1 n1) (<= 0 n3) (<= n2 n1)), Black: 753#(and (<= n1 n2) (<= 1 n1) (<= 0 n3)), Black: 755#(and (<= 1 n1) (<= 0 n3) (<= 1 n2)), 246#(and (<= i3 0) (<= 1 i) (<= i 1) (<= 0 i3)), Black: 1001#(and (<= n1 n3) (<= 1 n1) (< n3 (+ n1 1))), 760#true, Black: 1005#(and (<= n1 n3) (<= 1 n1) (<= n3 n2) (< n3 (+ n1 1)))]) [2021-06-11 11:14:15,426 INFO L384 tUnfolder$Statistics]: this new event has 24 ancestors and is not cut-off event [2021-06-11 11:14:15,426 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is not cut-off event [2021-06-11 11:14:15,426 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is not cut-off event [2021-06-11 11:14:15,426 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is not cut-off event [2021-06-11 11:14:15,583 INFO L129 PetriNetUnfolder]: 1233/4668 cut-off events. [2021-06-11 11:14:15,583 INFO L130 PetriNetUnfolder]: For 144802/145238 co-relation queries the response was YES. [2021-06-11 11:14:15,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36701 conditions, 4668 events. 1233/4668 cut-off events. For 144802/145238 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 51552 event pairs, 455 based on Foata normal form. 149/4545 useless extension candidates. Maximal degree in co-relation 36528. Up to 800 conditions per place. [2021-06-11 11:14:15,700 INFO L151 LiptonReduction]: Number of co-enabled transitions 1992 [2021-06-11 11:14:15,975 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:15,975 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:15,976 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1241 [2021-06-11 11:14:15,976 INFO L480 AbstractCegarLoop]: Abstraction has has 326 places, 515 transitions, 14080 flow [2021-06-11 11:14:15,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 56.375) internal successors, (451), 8 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) [2021-06-11 11:14:15,976 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:15,976 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] [2021-06-11 11:14:15,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-11 11:14:15,976 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:15,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:15,976 INFO L82 PathProgramCache]: Analyzing trace with hash 930153699, now seen corresponding path program 1 times [2021-06-11 11:14:15,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:15,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905313643] [2021-06-11 11:14:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:15,991 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-06-11 11:14:15,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 11:14:16,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:16,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:16,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:16,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:16,017 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-06-11 11:14:16,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:14:16,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:16,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:16,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:16,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:16,033 INFO L142 QuantifierPusher]: treesize reduction 11, result has 50.0 percent of original size [2021-06-11 11:14:16,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 11:14:16,043 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:14:16,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:16,049 INFO L142 QuantifierPusher]: treesize reduction 17, result has 52.8 percent of original size [2021-06-11 11:14:16,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:14:16,066 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:14:16,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:16,074 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-06-11 11:14:16,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:16,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:16,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:16,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:16,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905313643] [2021-06-11 11:14:16,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:16,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-11 11:14:16,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004257895] [2021-06-11 11:14:16,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 11:14:16,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:16,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 11:14:16,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-06-11 11:14:16,083 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 83 [2021-06-11 11:14:16,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 515 transitions, 14080 flow. Second operand has 11 states, 11 states have (on average 55.72727272727273) internal successors, (613), 11 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:16,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:16,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 83 [2021-06-11 11:14:16,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:17,478 INFO L129 PetriNetUnfolder]: 1274/4754 cut-off events. [2021-06-11 11:14:17,478 INFO L130 PetriNetUnfolder]: For 177282/177875 co-relation queries the response was YES. [2021-06-11 11:14:17,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41303 conditions, 4754 events. 1274/4754 cut-off events. For 177282/177875 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 52351 event pairs, 375 based on Foata normal form. 392/4955 useless extension candidates. Maximal degree in co-relation 41137. Up to 900 conditions per place. [2021-06-11 11:14:17,547 INFO L132 encePairwiseOnDemand]: 69/83 looper letters, 190 selfloop transitions, 162 changer transitions 219/612 dead transitions. [2021-06-11 11:14:17,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 612 transitions, 17674 flow [2021-06-11 11:14:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-11 11:14:17,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-11 11:14:17,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 966 transitions. [2021-06-11 11:14:17,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7274096385542169 [2021-06-11 11:14:17,548 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 966 transitions. [2021-06-11 11:14:17,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 966 transitions. [2021-06-11 11:14:17,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:17,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 966 transitions. [2021-06-11 11:14:17,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 60.375) internal successors, (966), 16 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:17,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 83.0) internal successors, (1411), 17 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:17,565 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 83.0) internal successors, (1411), 17 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:17,565 INFO L185 Difference]: Start difference. First operand has 326 places, 515 transitions, 14080 flow. Second operand 16 states and 966 transitions. [2021-06-11 11:14:17,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 612 transitions, 17674 flow [2021-06-11 11:14:18,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 612 transitions, 16116 flow, removed 314 selfloop flow, removed 60 redundant places. [2021-06-11 11:14:18,312 INFO L241 Difference]: Finished difference. Result has 289 places, 363 transitions, 8873 flow [2021-06-11 11:14:18,313 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=12008, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8873, PETRI_PLACES=289, PETRI_TRANSITIONS=363} [2021-06-11 11:14:18,313 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 241 predicate places. [2021-06-11 11:14:18,313 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:18,313 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 363 transitions, 8873 flow [2021-06-11 11:14:18,313 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 363 transitions, 8873 flow [2021-06-11 11:14:18,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 279 places, 363 transitions, 8873 flow [2021-06-11 11:14:18,706 INFO L129 PetriNetUnfolder]: 785/3040 cut-off events. [2021-06-11 11:14:18,706 INFO L130 PetriNetUnfolder]: For 78455/78762 co-relation queries the response was YES. [2021-06-11 11:14:18,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22506 conditions, 3040 events. 785/3040 cut-off events. For 78455/78762 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 30830 event pairs, 314 based on Foata normal form. 105/2968 useless extension candidates. Maximal degree in co-relation 22382. Up to 486 conditions per place. [2021-06-11 11:14:18,765 INFO L151 LiptonReduction]: Number of co-enabled transitions 1396 [2021-06-11 11:14:18,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:18,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:18,984 INFO L163 LiptonReduction]: Checked pairs total: 4 [2021-06-11 11:14:18,984 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 11:14:18,984 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 671 [2021-06-11 11:14:18,985 INFO L480 AbstractCegarLoop]: Abstraction has has 279 places, 363 transitions, 8873 flow [2021-06-11 11:14:18,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 55.72727272727273) internal successors, (613), 11 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:18,985 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:18,985 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] [2021-06-11 11:14:18,985 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-11 11:14:18,985 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:18,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:18,985 INFO L82 PathProgramCache]: Analyzing trace with hash 798971079, now seen corresponding path program 4 times [2021-06-11 11:14:18,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:18,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602203092] [2021-06-11 11:14:18,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:18,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:18,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:19,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:19,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:19,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:19,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:19,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:19,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 11:14:19,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:19,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 11:14:19,018 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-06-11 11:14:19,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:19,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:19,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:19,032 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-11 11:14:19,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:19,033 INFO L142 QuantifierPusher]: treesize reduction 13, result has 7.1 percent of original size [2021-06-11 11:14:19,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:19,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:19,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:19,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:19,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602203092] [2021-06-11 11:14:19,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:19,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:14:19,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308131520] [2021-06-11 11:14:19,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:14:19,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:19,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:14:19,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:14:19,035 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 84 [2021-06-11 11:14:19,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 363 transitions, 8873 flow. Second operand has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:19,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:19,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 84 [2021-06-11 11:14:19,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:19,698 INFO L129 PetriNetUnfolder]: 868/2866 cut-off events. [2021-06-11 11:14:19,698 INFO L130 PetriNetUnfolder]: For 84810/85092 co-relation queries the response was YES. [2021-06-11 11:14:19,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23437 conditions, 2866 events. 868/2866 cut-off events. For 84810/85092 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 27111 event pairs, 343 based on Foata normal form. 109/2807 useless extension candidates. Maximal degree in co-relation 23327. Up to 923 conditions per place. [2021-06-11 11:14:19,733 INFO L132 encePairwiseOnDemand]: 71/84 looper letters, 107 selfloop transitions, 154 changer transitions 39/323 dead transitions. [2021-06-11 11:14:19,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 323 transitions, 8689 flow [2021-06-11 11:14:19,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 11:14:19,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 11:14:19,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 718 transitions. [2021-06-11 11:14:19,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7123015873015873 [2021-06-11 11:14:19,734 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 718 transitions. [2021-06-11 11:14:19,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 718 transitions. [2021-06-11 11:14:19,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:19,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 718 transitions. [2021-06-11 11:14:19,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 59.833333333333336) internal successors, (718), 12 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:19,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:19,736 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:19,736 INFO L185 Difference]: Start difference. First operand has 279 places, 363 transitions, 8873 flow. Second operand 12 states and 718 transitions. [2021-06-11 11:14:19,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 323 transitions, 8689 flow [2021-06-11 11:14:20,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 323 transitions, 7599 flow, removed 198 selfloop flow, removed 33 redundant places. [2021-06-11 11:14:20,053 INFO L241 Difference]: Finished difference. Result has 249 places, 278 transitions, 6442 flow [2021-06-11 11:14:20,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=6875, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6442, PETRI_PLACES=249, PETRI_TRANSITIONS=278} [2021-06-11 11:14:20,053 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 201 predicate places. [2021-06-11 11:14:20,053 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:20,053 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 278 transitions, 6442 flow [2021-06-11 11:14:20,054 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 278 transitions, 6442 flow [2021-06-11 11:14:20,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 234 places, 278 transitions, 6442 flow [2021-06-11 11:14:20,295 INFO L129 PetriNetUnfolder]: 708/2464 cut-off events. [2021-06-11 11:14:20,295 INFO L130 PetriNetUnfolder]: For 52893/53136 co-relation queries the response was YES. [2021-06-11 11:14:20,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16742 conditions, 2464 events. 708/2464 cut-off events. For 52893/53136 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 23273 event pairs, 289 based on Foata normal form. 71/2363 useless extension candidates. Maximal degree in co-relation 16312. Up to 442 conditions per place. [2021-06-11 11:14:20,338 INFO L151 LiptonReduction]: Number of co-enabled transitions 964 [2021-06-11 11:14:20,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:20,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:21,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:21,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:23,149 INFO L163 LiptonReduction]: Checked pairs total: 8904 [2021-06-11 11:14:23,150 INFO L165 LiptonReduction]: Total number of compositions: 212 [2021-06-11 11:14:23,150 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3097 [2021-06-11 11:14:23,151 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 276 transitions, 6858 flow [2021-06-11 11:14:23,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:23,151 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:23,151 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] [2021-06-11 11:14:23,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-11 11:14:23,151 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:23,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:23,151 INFO L82 PathProgramCache]: Analyzing trace with hash -680497169, now seen corresponding path program 2 times [2021-06-11 11:14:23,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:23,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241276402] [2021-06-11 11:14:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:23,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:23,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:23,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:23,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:23,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:23,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:23,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:23,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:23,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:23,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:23,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:23,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:14:23,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:23,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:23,208 INFO L142 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size [2021-06-11 11:14:23,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 11:14:23,221 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-06-11 11:14:23,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:14:23,231 INFO L142 QuantifierPusher]: treesize reduction 10, result has 66.7 percent of original size [2021-06-11 11:14:23,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 11:14:23,243 INFO L142 QuantifierPusher]: treesize reduction 10, result has 54.5 percent of original size [2021-06-11 11:14:23,243 INFO L147 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size 8 [2021-06-11 11:14:23,255 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-06-11 11:14:23,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:23,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:23,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:23,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241276402] [2021-06-11 11:14:23,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:23,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-11 11:14:23,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519807055] [2021-06-11 11:14:23,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 11:14:23,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:23,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 11:14:23,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-06-11 11:14:23,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 296 [2021-06-11 11:14:23,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 276 transitions, 6858 flow. Second operand has 13 states, 13 states have (on average 56.46153846153846) internal successors, (734), 13 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:23,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:23,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 296 [2021-06-11 11:14:23,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:24,483 INFO L129 PetriNetUnfolder]: 951/2944 cut-off events. [2021-06-11 11:14:24,483 INFO L130 PetriNetUnfolder]: For 81467/81508 co-relation queries the response was YES. [2021-06-11 11:14:24,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24656 conditions, 2944 events. 951/2944 cut-off events. For 81467/81508 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 28105 event pairs, 254 based on Foata normal form. 93/2892 useless extension candidates. Maximal degree in co-relation 24166. Up to 628 conditions per place. [2021-06-11 11:14:24,510 INFO L132 encePairwiseOnDemand]: 249/296 looper letters, 193 selfloop transitions, 108 changer transitions 135/457 dead transitions. [2021-06-11 11:14:24,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 457 transitions, 12278 flow [2021-06-11 11:14:24,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-11 11:14:24,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-06-11 11:14:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1605 transitions. [2021-06-11 11:14:24,512 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22592905405405406 [2021-06-11 11:14:24,512 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 1605 transitions. [2021-06-11 11:14:24,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 1605 transitions. [2021-06-11 11:14:24,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:24,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 1605 transitions. [2021-06-11 11:14:24,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 66.875) internal successors, (1605), 24 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:24,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 296.0) internal successors, (7400), 25 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:24,518 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 296.0) internal successors, (7400), 25 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:24,518 INFO L185 Difference]: Start difference. First operand has 232 places, 276 transitions, 6858 flow. Second operand 24 states and 1605 transitions. [2021-06-11 11:14:24,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 457 transitions, 12278 flow [2021-06-11 11:14:24,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 457 transitions, 10099 flow, removed 167 selfloop flow, removed 35 redundant places. [2021-06-11 11:14:24,806 INFO L241 Difference]: Finished difference. Result has 232 places, 275 transitions, 5657 flow [2021-06-11 11:14:24,806 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=5237, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5657, PETRI_PLACES=232, PETRI_TRANSITIONS=275} [2021-06-11 11:14:24,807 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 184 predicate places. [2021-06-11 11:14:24,807 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:24,807 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 275 transitions, 5657 flow [2021-06-11 11:14:24,807 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 275 transitions, 5657 flow [2021-06-11 11:14:24,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 222 places, 275 transitions, 5657 flow [2021-06-11 11:14:24,989 INFO L129 PetriNetUnfolder]: 594/1874 cut-off events. [2021-06-11 11:14:24,989 INFO L130 PetriNetUnfolder]: For 35567/35718 co-relation queries the response was YES. [2021-06-11 11:14:25,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13511 conditions, 1874 events. 594/1874 cut-off events. For 35567/35718 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 16127 event pairs, 216 based on Foata normal form. 50/1816 useless extension candidates. Maximal degree in co-relation 13404. Up to 268 conditions per place. [2021-06-11 11:14:25,017 INFO L151 LiptonReduction]: Number of co-enabled transitions 664 [2021-06-11 11:14:25,059 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:25,059 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:25,059 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-06-11 11:14:25,059 INFO L480 AbstractCegarLoop]: Abstraction has has 222 places, 275 transitions, 5657 flow [2021-06-11 11:14:25,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 56.46153846153846) internal successors, (734), 13 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:25,059 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:25,060 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] [2021-06-11 11:14:25,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-11 11:14:25,060 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:25,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:25,060 INFO L82 PathProgramCache]: Analyzing trace with hash 107092095, now seen corresponding path program 1 times [2021-06-11 11:14:25,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:25,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115638552] [2021-06-11 11:14:25,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:25,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:25,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:25,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:25,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:25,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:25,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:25,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:25,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:25,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:25,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:25,084 INFO L142 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-06-11 11:14:25,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:25,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:25,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:25,093 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:14:25,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:25,099 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-06-11 11:14:25,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:25,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:25,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:25,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:25,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:25,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115638552] [2021-06-11 11:14:25,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:25,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-11 11:14:25,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852771918] [2021-06-11 11:14:25,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 11:14:25,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:25,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 11:14:25,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-11 11:14:25,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 296 [2021-06-11 11:14:25,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 275 transitions, 5657 flow. Second operand has 10 states, 10 states have (on average 56.9) internal successors, (569), 10 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:25,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:25,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 296 [2021-06-11 11:14:25,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:25,772 INFO L129 PetriNetUnfolder]: 808/2558 cut-off events. [2021-06-11 11:14:25,772 INFO L130 PetriNetUnfolder]: For 51705/51806 co-relation queries the response was YES. [2021-06-11 11:14:25,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19485 conditions, 2558 events. 808/2558 cut-off events. For 51705/51806 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 23607 event pairs, 231 based on Foata normal form. 66/2482 useless extension candidates. Maximal degree in co-relation 19375. Up to 423 conditions per place. [2021-06-11 11:14:25,796 INFO L132 encePairwiseOnDemand]: 201/296 looper letters, 132 selfloop transitions, 168 changer transitions 66/387 dead transitions. [2021-06-11 11:14:25,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 387 transitions, 8850 flow [2021-06-11 11:14:25,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-11 11:14:25,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-11 11:14:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 974 transitions. [2021-06-11 11:14:25,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23503861003861004 [2021-06-11 11:14:25,797 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 974 transitions. [2021-06-11 11:14:25,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 974 transitions. [2021-06-11 11:14:25,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:25,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 974 transitions. [2021-06-11 11:14:25,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 69.57142857142857) internal successors, (974), 14 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:25,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 296.0) internal successors, (4440), 15 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:25,801 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 296.0) internal successors, (4440), 15 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:25,801 INFO L185 Difference]: Start difference. First operand has 222 places, 275 transitions, 5657 flow. Second operand 14 states and 974 transitions. [2021-06-11 11:14:25,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 387 transitions, 8850 flow [2021-06-11 11:14:25,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 387 transitions, 8176 flow, removed 192 selfloop flow, removed 19 redundant places. [2021-06-11 11:14:25,986 INFO L241 Difference]: Finished difference. Result has 222 places, 292 transitions, 6124 flow [2021-06-11 11:14:25,986 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=5207, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6124, PETRI_PLACES=222, PETRI_TRANSITIONS=292} [2021-06-11 11:14:25,986 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 174 predicate places. [2021-06-11 11:14:25,986 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:25,987 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 292 transitions, 6124 flow [2021-06-11 11:14:25,987 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 292 transitions, 6124 flow [2021-06-11 11:14:25,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 220 places, 292 transitions, 6124 flow [2021-06-11 11:14:26,148 INFO L129 PetriNetUnfolder]: 536/1857 cut-off events. [2021-06-11 11:14:26,148 INFO L130 PetriNetUnfolder]: For 32594/32745 co-relation queries the response was YES. [2021-06-11 11:14:26,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12865 conditions, 1857 events. 536/1857 cut-off events. For 32594/32745 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 16370 event pairs, 181 based on Foata normal form. 60/1826 useless extension candidates. Maximal degree in co-relation 12619. Up to 261 conditions per place. [2021-06-11 11:14:26,175 INFO L151 LiptonReduction]: Number of co-enabled transitions 754 [2021-06-11 11:14:26,235 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:26,235 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:26,235 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 249 [2021-06-11 11:14:26,236 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 292 transitions, 6124 flow [2021-06-11 11:14:26,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 56.9) internal successors, (569), 10 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:26,236 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:26,236 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 11:14:26,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-11 11:14:26,236 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:26,236 INFO L82 PathProgramCache]: Analyzing trace with hash -124059377, now seen corresponding path program 2 times [2021-06-11 11:14:26,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:26,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230227026] [2021-06-11 11:14:26,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:26,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:26,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:26,256 INFO L142 QuantifierPusher]: treesize reduction 31, result has 43.6 percent of original size [2021-06-11 11:14:26,257 INFO L147 QuantifierPusher]: treesize reduction 6, result has 75.0 percent of original size 18 [2021-06-11 11:14:26,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:26,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 11:14:26,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:26,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:26,286 INFO L142 QuantifierPusher]: treesize reduction 29, result has 35.6 percent of original size [2021-06-11 11:14:26,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:26,298 INFO L142 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size [2021-06-11 11:14:26,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:14:26,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:26,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:26,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:26,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:26,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:26,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230227026] [2021-06-11 11:14:26,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:26,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-11 11:14:26,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311747480] [2021-06-11 11:14:26,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 11:14:26,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:26,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 11:14:26,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-11 11:14:26,335 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 296 [2021-06-11 11:14:26,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 292 transitions, 6124 flow. Second operand has 11 states, 11 states have (on average 56.72727272727273) internal successors, (624), 11 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:26,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:26,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 296 [2021-06-11 11:14:26,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:26,823 INFO L129 PetriNetUnfolder]: 492/1711 cut-off events. [2021-06-11 11:14:26,823 INFO L130 PetriNetUnfolder]: For 34021/34066 co-relation queries the response was YES. [2021-06-11 11:14:26,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13363 conditions, 1711 events. 492/1711 cut-off events. For 34021/34066 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 14861 event pairs, 152 based on Foata normal form. 66/1710 useless extension candidates. Maximal degree in co-relation 13214. Up to 564 conditions per place. [2021-06-11 11:14:26,837 INFO L132 encePairwiseOnDemand]: 264/296 looper letters, 123 selfloop transitions, 57 changer transitions 96/297 dead transitions. [2021-06-11 11:14:26,837 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 297 transitions, 6588 flow [2021-06-11 11:14:26,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 11:14:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 11:14:26,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 793 transitions. [2021-06-11 11:14:26,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22325450450450451 [2021-06-11 11:14:26,838 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 793 transitions. [2021-06-11 11:14:26,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 793 transitions. [2021-06-11 11:14:26,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:26,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 793 transitions. [2021-06-11 11:14:26,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 66.08333333333333) internal successors, (793), 12 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:26,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 296.0) internal successors, (3848), 13 states have internal predecessors, (3848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:26,842 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 296.0) internal successors, (3848), 13 states have internal predecessors, (3848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:26,842 INFO L185 Difference]: Start difference. First operand has 220 places, 292 transitions, 6124 flow. Second operand 12 states and 793 transitions. [2021-06-11 11:14:26,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 297 transitions, 6588 flow [2021-06-11 11:14:26,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 297 transitions, 6371 flow, removed 34 selfloop flow, removed 10 redundant places. [2021-06-11 11:14:26,955 INFO L241 Difference]: Finished difference. Result has 224 places, 192 transitions, 3730 flow [2021-06-11 11:14:26,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=5369, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3730, PETRI_PLACES=224, PETRI_TRANSITIONS=192} [2021-06-11 11:14:26,956 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 176 predicate places. [2021-06-11 11:14:26,956 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:26,956 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 192 transitions, 3730 flow [2021-06-11 11:14:26,956 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 192 transitions, 3730 flow [2021-06-11 11:14:26,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 192 transitions, 3730 flow [2021-06-11 11:14:27,039 INFO L129 PetriNetUnfolder]: 279/1014 cut-off events. [2021-06-11 11:14:27,039 INFO L130 PetriNetUnfolder]: For 19049/19078 co-relation queries the response was YES. [2021-06-11 11:14:27,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7366 conditions, 1014 events. 279/1014 cut-off events. For 19049/19078 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7472 event pairs, 92 based on Foata normal form. 22/999 useless extension candidates. Maximal degree in co-relation 6840. Up to 128 conditions per place. [2021-06-11 11:14:27,050 INFO L151 LiptonReduction]: Number of co-enabled transitions 468 [2021-06-11 11:14:27,065 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:27,065 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:27,065 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 109 [2021-06-11 11:14:27,066 INFO L480 AbstractCegarLoop]: Abstraction has has 208 places, 192 transitions, 3730 flow [2021-06-11 11:14:27,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 56.72727272727273) internal successors, (624), 11 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:27,066 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:27,066 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] [2021-06-11 11:14:27,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-11 11:14:27,066 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:27,066 INFO L82 PathProgramCache]: Analyzing trace with hash -621055474, now seen corresponding path program 1 times [2021-06-11 11:14:27,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:27,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679605127] [2021-06-11 11:14:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:27,078 INFO L142 QuantifierPusher]: treesize reduction 24, result has 50.0 percent of original size [2021-06-11 11:14:27,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 11:14:27,089 INFO L142 QuantifierPusher]: treesize reduction 24, result has 46.7 percent of original size [2021-06-11 11:14:27,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 11:14:27,091 INFO L142 QuantifierPusher]: treesize reduction 43, result has 44.9 percent of original size [2021-06-11 11:14:27,091 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.0 percent of original size 28 [2021-06-11 11:14:27,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:27,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:27,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:27,107 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-06-11 11:14:27,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:14:27,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:27,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:27,126 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-06-11 11:14:27,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:27,127 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-06-11 11:14:27,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:27,135 INFO L142 QuantifierPusher]: treesize reduction 5, result has 70.6 percent of original size [2021-06-11 11:14:27,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:27,144 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-11 11:14:27,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:27,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:27,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:27,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679605127] [2021-06-11 11:14:27,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:27,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-11 11:14:27,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48795069] [2021-06-11 11:14:27,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 11:14:27,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:27,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 11:14:27,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-11 11:14:27,150 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 296 [2021-06-11 11:14:27,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 192 transitions, 3730 flow. Second operand has 10 states, 10 states have (on average 56.9) internal successors, (569), 10 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:27,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:27,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 296 [2021-06-11 11:14:27,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:27,489 INFO L129 PetriNetUnfolder]: 370/1288 cut-off events. [2021-06-11 11:14:27,489 INFO L130 PetriNetUnfolder]: For 25993/26057 co-relation queries the response was YES. [2021-06-11 11:14:27,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9872 conditions, 1288 events. 370/1288 cut-off events. For 25993/26057 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 9992 event pairs, 135 based on Foata normal form. 37/1277 useless extension candidates. Maximal degree in co-relation 9491. Up to 292 conditions per place. [2021-06-11 11:14:27,498 INFO L132 encePairwiseOnDemand]: 243/296 looper letters, 89 selfloop transitions, 76 changer transitions 37/223 dead transitions. [2021-06-11 11:14:27,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 223 transitions, 4687 flow [2021-06-11 11:14:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 11:14:27,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 11:14:27,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 653 transitions. [2021-06-11 11:14:27,499 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2206081081081081 [2021-06-11 11:14:27,500 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 653 transitions. [2021-06-11 11:14:27,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 653 transitions. [2021-06-11 11:14:27,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:27,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 653 transitions. [2021-06-11 11:14:27,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 65.3) internal successors, (653), 10 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:27,502 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) [2021-06-11 11:14:27,502 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) [2021-06-11 11:14:27,502 INFO L185 Difference]: Start difference. First operand has 208 places, 192 transitions, 3730 flow. Second operand 10 states and 653 transitions. [2021-06-11 11:14:27,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 223 transitions, 4687 flow [2021-06-11 11:14:27,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 223 transitions, 4288 flow, removed 64 selfloop flow, removed 21 redundant places. [2021-06-11 11:14:27,564 INFO L241 Difference]: Finished difference. Result has 199 places, 173 transitions, 3200 flow [2021-06-11 11:14:27,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=3381, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3200, PETRI_PLACES=199, PETRI_TRANSITIONS=173} [2021-06-11 11:14:27,564 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 151 predicate places. [2021-06-11 11:14:27,564 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:27,565 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 173 transitions, 3200 flow [2021-06-11 11:14:27,565 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 173 transitions, 3200 flow [2021-06-11 11:14:27,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 195 places, 173 transitions, 3200 flow [2021-06-11 11:14:27,644 INFO L129 PetriNetUnfolder]: 278/1052 cut-off events. [2021-06-11 11:14:27,644 INFO L130 PetriNetUnfolder]: For 17404/17448 co-relation queries the response was YES. [2021-06-11 11:14:27,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6879 conditions, 1052 events. 278/1052 cut-off events. For 17404/17448 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7999 event pairs, 98 based on Foata normal form. 33/1041 useless extension candidates. Maximal degree in co-relation 6294. Up to 135 conditions per place. [2021-06-11 11:14:27,655 INFO L151 LiptonReduction]: Number of co-enabled transitions 508 [2021-06-11 11:14:27,680 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:27,680 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:27,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-06-11 11:14:27,680 INFO L480 AbstractCegarLoop]: Abstraction has has 195 places, 173 transitions, 3200 flow [2021-06-11 11:14:27,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 56.9) internal successors, (569), 10 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:27,681 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:27,681 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] [2021-06-11 11:14:27,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-11 11:14:27,681 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:27,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:27,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1179065986, now seen corresponding path program 1 times [2021-06-11 11:14:27,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:27,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218703681] [2021-06-11 11:14:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:27,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:14:27,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:14:27,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:27,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:27,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:14:27,732 INFO L142 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-06-11 11:14:27,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:14:27,736 INFO L142 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size [2021-06-11 11:14:27,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 11:14:27,748 INFO L142 QuantifierPusher]: treesize reduction 21, result has 43.2 percent of original size [2021-06-11 11:14:27,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:27,758 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-06-11 11:14:27,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-11 11:14:27,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 11:14:27,788 INFO L142 QuantifierPusher]: treesize reduction 21, result has 32.3 percent of original size [2021-06-11 11:14:27,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:27,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:27,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:27,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:27,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218703681] [2021-06-11 11:14:27,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:27,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-11 11:14:27,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037430965] [2021-06-11 11:14:27,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 11:14:27,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:27,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 11:14:27,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-11 11:14:27,798 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 296 [2021-06-11 11:14:27,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 173 transitions, 3200 flow. Second operand has 11 states, 11 states have (on average 56.72727272727273) internal successors, (624), 11 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:27,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:27,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 296 [2021-06-11 11:14:27,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:28,176 INFO L129 PetriNetUnfolder]: 324/1168 cut-off events. [2021-06-11 11:14:28,177 INFO L130 PetriNetUnfolder]: For 22283/22342 co-relation queries the response was YES. [2021-06-11 11:14:28,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8494 conditions, 1168 events. 324/1168 cut-off events. For 22283/22342 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 9003 event pairs, 108 based on Foata normal form. 59/1179 useless extension candidates. Maximal degree in co-relation 8152. Up to 415 conditions per place. [2021-06-11 11:14:28,184 INFO L132 encePairwiseOnDemand]: 249/296 looper letters, 92 selfloop transitions, 70 changer transitions 12/195 dead transitions. [2021-06-11 11:14:28,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 195 transitions, 3960 flow [2021-06-11 11:14:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 11:14:28,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 11:14:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 752 transitions. [2021-06-11 11:14:28,187 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21171171171171171 [2021-06-11 11:14:28,187 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 752 transitions. [2021-06-11 11:14:28,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 752 transitions. [2021-06-11 11:14:28,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:28,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 752 transitions. [2021-06-11 11:14:28,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 62.666666666666664) internal successors, (752), 12 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 296.0) internal successors, (3848), 13 states have internal predecessors, (3848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,189 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 296.0) internal successors, (3848), 13 states have internal predecessors, (3848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,189 INFO L185 Difference]: Start difference. First operand has 195 places, 173 transitions, 3200 flow. Second operand 12 states and 752 transitions. [2021-06-11 11:14:28,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 195 transitions, 3960 flow [2021-06-11 11:14:28,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 195 transitions, 3795 flow, removed 14 selfloop flow, removed 12 redundant places. [2021-06-11 11:14:28,250 INFO L241 Difference]: Finished difference. Result has 197 places, 172 transitions, 3207 flow [2021-06-11 11:14:28,250 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=3050, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3207, PETRI_PLACES=197, PETRI_TRANSITIONS=172} [2021-06-11 11:14:28,250 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 149 predicate places. [2021-06-11 11:14:28,250 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:28,251 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 172 transitions, 3207 flow [2021-06-11 11:14:28,251 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 172 transitions, 3207 flow [2021-06-11 11:14:28,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 195 places, 172 transitions, 3207 flow [2021-06-11 11:14:28,326 INFO L129 PetriNetUnfolder]: 256/1027 cut-off events. [2021-06-11 11:14:28,327 INFO L130 PetriNetUnfolder]: For 16164/16230 co-relation queries the response was YES. [2021-06-11 11:14:28,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6698 conditions, 1027 events. 256/1027 cut-off events. For 16164/16230 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7916 event pairs, 104 based on Foata normal form. 59/1033 useless extension candidates. Maximal degree in co-relation 6148. Up to 122 conditions per place. [2021-06-11 11:14:28,337 INFO L151 LiptonReduction]: Number of co-enabled transitions 492 [2021-06-11 11:14:28,351 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:28,351 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:28,351 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-06-11 11:14:28,352 INFO L480 AbstractCegarLoop]: Abstraction has has 195 places, 172 transitions, 3207 flow [2021-06-11 11:14:28,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 56.72727272727273) internal successors, (624), 11 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,352 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:28,352 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] [2021-06-11 11:14:28,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-11 11:14:28,352 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:28,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:28,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1296820600, now seen corresponding path program 2 times [2021-06-11 11:14:28,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:28,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949076338] [2021-06-11 11:14:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:28,363 INFO L142 QuantifierPusher]: treesize reduction 27, result has 43.8 percent of original size [2021-06-11 11:14:28,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 11:14:28,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:14:28,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:28,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:28,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 11:14:28,394 INFO L142 QuantifierPusher]: treesize reduction 17, result has 41.4 percent of original size [2021-06-11 11:14:28,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:28,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:28,406 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-11 11:14:28,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:28,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:28,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:28,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:28,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949076338] [2021-06-11 11:14:28,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:28,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-11 11:14:28,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758792508] [2021-06-11 11:14:28,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 11:14:28,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:28,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 11:14:28,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-11 11:14:28,428 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 296 [2021-06-11 11:14:28,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 172 transitions, 3207 flow. Second operand has 10 states, 10 states have (on average 56.9) internal successors, (569), 10 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:28,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 296 [2021-06-11 11:14:28,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:28,670 INFO L129 PetriNetUnfolder]: 196/726 cut-off events. [2021-06-11 11:14:28,670 INFO L130 PetriNetUnfolder]: For 13516/13547 co-relation queries the response was YES. [2021-06-11 11:14:28,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5637 conditions, 726 events. 196/726 cut-off events. For 13516/13547 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4951 event pairs, 52 based on Foata normal form. 67/769 useless extension candidates. Maximal degree in co-relation 5402. Up to 144 conditions per place. [2021-06-11 11:14:28,674 INFO L132 encePairwiseOnDemand]: 280/296 looper letters, 62 selfloop transitions, 17 changer transitions 69/168 dead transitions. [2021-06-11 11:14:28,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 168 transitions, 3215 flow [2021-06-11 11:14:28,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 11:14:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 11:14:28,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 574 transitions. [2021-06-11 11:14:28,678 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21546546546546547 [2021-06-11 11:14:28,678 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 574 transitions. [2021-06-11 11:14:28,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 574 transitions. [2021-06-11 11:14:28,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:28,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 574 transitions. [2021-06-11 11:14:28,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 63.77777777777778) internal successors, (574), 9 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 296.0) internal successors, (2960), 10 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,680 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 296.0) internal successors, (2960), 10 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,681 INFO L185 Difference]: Start difference. First operand has 195 places, 172 transitions, 3207 flow. Second operand 9 states and 574 transitions. [2021-06-11 11:14:28,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 168 transitions, 3215 flow [2021-06-11 11:14:28,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 168 transitions, 2957 flow, removed 19 selfloop flow, removed 13 redundant places. [2021-06-11 11:14:28,718 INFO L241 Difference]: Finished difference. Result has 191 places, 95 transitions, 1307 flow [2021-06-11 11:14:28,718 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=2341, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1307, PETRI_PLACES=191, PETRI_TRANSITIONS=95} [2021-06-11 11:14:28,718 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 143 predicate places. [2021-06-11 11:14:28,718 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:28,718 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 95 transitions, 1307 flow [2021-06-11 11:14:28,718 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 95 transitions, 1307 flow [2021-06-11 11:14:28,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 95 transitions, 1307 flow [2021-06-11 11:14:28,735 INFO L129 PetriNetUnfolder]: 58/255 cut-off events. [2021-06-11 11:14:28,735 INFO L130 PetriNetUnfolder]: For 2584/2602 co-relation queries the response was YES. [2021-06-11 11:14:28,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1617 conditions, 255 events. 58/255 cut-off events. For 2584/2602 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1089 event pairs, 18 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 1551. Up to 31 conditions per place. [2021-06-11 11:14:28,737 INFO L151 LiptonReduction]: Number of co-enabled transitions 94 [2021-06-11 11:14:28,741 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:28,741 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:28,741 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 11:14:28,741 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 95 transitions, 1307 flow [2021-06-11 11:14:28,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 56.9) internal successors, (569), 10 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,741 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:28,741 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] [2021-06-11 11:14:28,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-11 11:14:28,741 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:28,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:28,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1159481155, now seen corresponding path program 1 times [2021-06-11 11:14:28,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:28,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445003764] [2021-06-11 11:14:28,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:28,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:14:28,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:28,766 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-06-11 11:14:28,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:14:28,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 11:14:28,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:28,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:28,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:28,793 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-06-11 11:14:28,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:28,802 INFO L142 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-06-11 11:14:28,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:28,808 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-06-11 11:14:28,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:28,817 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-06-11 11:14:28,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:28,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445003764] [2021-06-11 11:14:28,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:28,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:14:28,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036053384] [2021-06-11 11:14:28,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:14:28,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:28,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:14:28,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:14:28,819 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 296 [2021-06-11 11:14:28,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 95 transitions, 1307 flow. Second operand has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,820 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:28,820 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 296 [2021-06-11 11:14:28,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:28,936 INFO L129 PetriNetUnfolder]: 62/273 cut-off events. [2021-06-11 11:14:28,937 INFO L130 PetriNetUnfolder]: For 2993/3002 co-relation queries the response was YES. [2021-06-11 11:14:28,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1894 conditions, 273 events. 62/273 cut-off events. For 2993/3002 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1171 event pairs, 18 based on Foata normal form. 4/273 useless extension candidates. Maximal degree in co-relation 1825. Up to 88 conditions per place. [2021-06-11 11:14:28,938 INFO L132 encePairwiseOnDemand]: 281/296 looper letters, 48 selfloop transitions, 28 changer transitions 8/104 dead transitions. [2021-06-11 11:14:28,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 104 transitions, 1599 flow [2021-06-11 11:14:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 11:14:28,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 11:14:28,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 594 transitions. [2021-06-11 11:14:28,939 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20067567567567568 [2021-06-11 11:14:28,939 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 594 transitions. [2021-06-11 11:14:28,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 594 transitions. [2021-06-11 11:14:28,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:28,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 594 transitions. [2021-06-11 11:14:28,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.4) internal successors, (594), 10 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:28,941 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) [2021-06-11 11:14:28,941 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) [2021-06-11 11:14:28,941 INFO L185 Difference]: Start difference. First operand has 151 places, 95 transitions, 1307 flow. Second operand 10 states and 594 transitions. [2021-06-11 11:14:28,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 104 transitions, 1599 flow [2021-06-11 11:14:28,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 104 transitions, 1302 flow, removed 59 selfloop flow, removed 31 redundant places. [2021-06-11 11:14:28,949 INFO L241 Difference]: Finished difference. Result has 133 places, 94 transitions, 1092 flow [2021-06-11 11:14:28,949 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=1046, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1092, PETRI_PLACES=133, PETRI_TRANSITIONS=94} [2021-06-11 11:14:28,949 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 85 predicate places. [2021-06-11 11:14:28,949 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:28,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 94 transitions, 1092 flow [2021-06-11 11:14:28,949 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 94 transitions, 1092 flow [2021-06-11 11:14:28,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 94 transitions, 1092 flow [2021-06-11 11:14:28,962 INFO L129 PetriNetUnfolder]: 51/244 cut-off events. [2021-06-11 11:14:28,963 INFO L130 PetriNetUnfolder]: For 1437/1437 co-relation queries the response was YES. [2021-06-11 11:14:28,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 244 events. 51/244 cut-off events. For 1437/1437 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1048 event pairs, 18 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 1172. Up to 29 conditions per place. [2021-06-11 11:14:28,964 INFO L151 LiptonReduction]: Number of co-enabled transitions 90 [2021-06-11 11:14:28,991 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-06-11 11:14:28,994 INFO L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-06-11 11:14:29,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:29,029 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:29,030 INFO L165 LiptonReduction]: Total number of compositions: 2 [2021-06-11 11:14:29,030 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-06-11 11:14:29,030 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 92 transitions, 1088 flow [2021-06-11 11:14:29,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,030 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:29,030 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] [2021-06-11 11:14:29,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-11 11:14:29,030 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:29,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:29,031 INFO L82 PathProgramCache]: Analyzing trace with hash -101887146, now seen corresponding path program 1 times [2021-06-11 11:14:29,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:29,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641553131] [2021-06-11 11:14:29,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:29,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:14:29,056 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-11 11:14:29,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:29,058 INFO L142 QuantifierPusher]: treesize reduction 20, result has 59.2 percent of original size [2021-06-11 11:14:29,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 11:14:29,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:29,069 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-06-11 11:14:29,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:29,076 INFO L142 QuantifierPusher]: treesize reduction 10, result has 50.0 percent of original size [2021-06-11 11:14:29,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:29,076 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-06-11 11:14:29,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:14:29,083 INFO L142 QuantifierPusher]: treesize reduction 31, result has 38.0 percent of original size [2021-06-11 11:14:29,083 INFO L147 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size 16 [2021-06-11 11:14:29,097 INFO L142 QuantifierPusher]: treesize reduction 18, result has 51.4 percent of original size [2021-06-11 11:14:29,097 INFO L147 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size 16 [2021-06-11 11:14:29,111 INFO L142 QuantifierPusher]: treesize reduction 29, result has 39.6 percent of original size [2021-06-11 11:14:29,111 INFO L147 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size 16 [2021-06-11 11:14:29,117 INFO L142 QuantifierPusher]: treesize reduction 29, result has 42.0 percent of original size [2021-06-11 11:14:29,117 INFO L147 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size 18 [2021-06-11 11:14:29,132 INFO L142 QuantifierPusher]: treesize reduction 42, result has 27.6 percent of original size [2021-06-11 11:14:29,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 11:14:29,146 INFO L142 QuantifierPusher]: treesize reduction 38, result has 24.0 percent of original size [2021-06-11 11:14:29,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:29,147 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-06-11 11:14:29,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:29,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:29,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:29,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641553131] [2021-06-11 11:14:29,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:29,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-11 11:14:29,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066793445] [2021-06-11 11:14:29,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-11 11:14:29,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:29,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-11 11:14:29,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-11 11:14:29,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 298 [2021-06-11 11:14:29,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 92 transitions, 1088 flow. Second operand has 10 states, 10 states have (on average 56.9) internal successors, (569), 10 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:29,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 298 [2021-06-11 11:14:29,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:29,242 INFO L129 PetriNetUnfolder]: 45/224 cut-off events. [2021-06-11 11:14:29,242 INFO L130 PetriNetUnfolder]: For 1571/1578 co-relation queries the response was YES. [2021-06-11 11:14:29,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1325 conditions, 224 events. 45/224 cut-off events. For 1571/1578 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 895 event pairs, 13 based on Foata normal form. 3/224 useless extension candidates. Maximal degree in co-relation 1256. Up to 62 conditions per place. [2021-06-11 11:14:29,243 INFO L132 encePairwiseOnDemand]: 284/298 looper letters, 42 selfloop transitions, 24 changer transitions 11/97 dead transitions. [2021-06-11 11:14:29,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 97 transitions, 1277 flow [2021-06-11 11:14:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 11:14:29,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 11:14:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 536 transitions. [2021-06-11 11:14:29,244 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19985085756897839 [2021-06-11 11:14:29,244 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 536 transitions. [2021-06-11 11:14:29,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 536 transitions. [2021-06-11 11:14:29,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:29,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 536 transitions. [2021-06-11 11:14:29,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 59.55555555555556) internal successors, (536), 9 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) [2021-06-11 11:14:29,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,245 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,245 INFO L185 Difference]: Start difference. First operand has 127 places, 92 transitions, 1088 flow. Second operand 9 states and 536 transitions. [2021-06-11 11:14:29,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 97 transitions, 1277 flow [2021-06-11 11:14:29,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 97 transitions, 1188 flow, removed 11 selfloop flow, removed 10 redundant places. [2021-06-11 11:14:29,251 INFO L241 Difference]: Finished difference. Result has 127 places, 84 transitions, 944 flow [2021-06-11 11:14:29,251 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=944, PETRI_PLACES=127, PETRI_TRANSITIONS=84} [2021-06-11 11:14:29,251 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 79 predicate places. [2021-06-11 11:14:29,251 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:29,251 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 84 transitions, 944 flow [2021-06-11 11:14:29,251 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 84 transitions, 944 flow [2021-06-11 11:14:29,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 84 transitions, 944 flow [2021-06-11 11:14:29,261 INFO L129 PetriNetUnfolder]: 39/195 cut-off events. [2021-06-11 11:14:29,261 INFO L130 PetriNetUnfolder]: For 1166/1167 co-relation queries the response was YES. [2021-06-11 11:14:29,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 195 events. 39/195 cut-off events. For 1166/1167 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 743 event pairs, 14 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 895. Up to 30 conditions per place. [2021-06-11 11:14:29,263 INFO L151 LiptonReduction]: Number of co-enabled transitions 84 [2021-06-11 11:14:29,265 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:29,265 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:29,265 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 11:14:29,265 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 84 transitions, 944 flow [2021-06-11 11:14:29,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 56.9) internal successors, (569), 10 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,265 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:29,265 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] [2021-06-11 11:14:29,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-11 11:14:29,266 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:29,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:29,266 INFO L82 PathProgramCache]: Analyzing trace with hash -191929193, now seen corresponding path program 1 times [2021-06-11 11:14:29,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:29,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653201780] [2021-06-11 11:14:29,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:29,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:29,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:29,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:29,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 11:14:29,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:14:29,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 11:14:29,317 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-06-11 11:14:29,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:29,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:29,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 11:14:29,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 11:14:29,355 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-11 11:14:29,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:29,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:29,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653201780] [2021-06-11 11:14:29,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:29,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 11:14:29,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859139073] [2021-06-11 11:14:29,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 11:14:29,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:29,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 11:14:29,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-06-11 11:14:29,358 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 298 [2021-06-11 11:14:29,358 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 84 transitions, 944 flow. Second operand has 12 states, 12 states have (on average 56.416666666666664) internal successors, (677), 12 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,358 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:29,358 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 298 [2021-06-11 11:14:29,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:29,486 INFO L129 PetriNetUnfolder]: 31/179 cut-off events. [2021-06-11 11:14:29,486 INFO L130 PetriNetUnfolder]: For 1250/1254 co-relation queries the response was YES. [2021-06-11 11:14:29,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1060 conditions, 179 events. 31/179 cut-off events. For 1250/1254 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 638 event pairs, 6 based on Foata normal form. 5/182 useless extension candidates. Maximal degree in co-relation 1009. Up to 51 conditions per place. [2021-06-11 11:14:29,487 INFO L132 encePairwiseOnDemand]: 282/298 looper letters, 33 selfloop transitions, 18 changer transitions 23/94 dead transitions. [2021-06-11 11:14:29,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 94 transitions, 1209 flow [2021-06-11 11:14:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 11:14:29,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 11:14:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 542 transitions. [2021-06-11 11:14:29,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20208799403430275 [2021-06-11 11:14:29,497 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 542 transitions. [2021-06-11 11:14:29,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 542 transitions. [2021-06-11 11:14:29,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:29,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 542 transitions. [2021-06-11 11:14:29,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 60.22222222222222) internal successors, (542), 9 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,499 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 298.0) internal successors, (2980), 10 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,499 INFO L185 Difference]: Start difference. First operand has 122 places, 84 transitions, 944 flow. Second operand 9 states and 542 transitions. [2021-06-11 11:14:29,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 94 transitions, 1209 flow [2021-06-11 11:14:29,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 94 transitions, 1116 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-06-11 11:14:29,504 INFO L241 Difference]: Finished difference. Result has 121 places, 68 transitions, 697 flow [2021-06-11 11:14:29,504 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=697, PETRI_PLACES=121, PETRI_TRANSITIONS=68} [2021-06-11 11:14:29,504 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 73 predicate places. [2021-06-11 11:14:29,504 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:29,505 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 68 transitions, 697 flow [2021-06-11 11:14:29,505 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 68 transitions, 697 flow [2021-06-11 11:14:29,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 68 transitions, 697 flow [2021-06-11 11:14:29,512 INFO L129 PetriNetUnfolder]: 23/133 cut-off events. [2021-06-11 11:14:29,512 INFO L130 PetriNetUnfolder]: For 701/701 co-relation queries the response was YES. [2021-06-11 11:14:29,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 133 events. 23/133 cut-off events. For 701/701 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 409 event pairs, 8 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 603. Up to 21 conditions per place. [2021-06-11 11:14:29,513 INFO L151 LiptonReduction]: Number of co-enabled transitions 70 [2021-06-11 11:14:29,514 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:29,514 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:29,514 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 11:14:29,515 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 68 transitions, 697 flow [2021-06-11 11:14:29,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 56.416666666666664) internal successors, (677), 12 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:14:29,515 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] [2021-06-11 11:14:29,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-11 11:14:29,515 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 11:14:29,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:14:29,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1587579653, now seen corresponding path program 1 times [2021-06-11 11:14:29,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:14:29,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950426352] [2021-06-11 11:14:29,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:14:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:14:29,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:29,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:29,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 11:14:29,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 11:14:29,550 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-06-11 11:14:29,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 11:14:29,568 INFO L142 QuantifierPusher]: treesize reduction 23, result has 52.1 percent of original size [2021-06-11 11:14:29,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 11:14:29,572 INFO L142 QuantifierPusher]: treesize reduction 23, result has 55.8 percent of original size [2021-06-11 11:14:29,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 11:14:29,595 INFO L142 QuantifierPusher]: treesize reduction 9, result has 74.3 percent of original size [2021-06-11 11:14:29,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 11:14:29,612 INFO L142 QuantifierPusher]: treesize reduction 19, result has 58.7 percent of original size [2021-06-11 11:14:29,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 11:14:29,630 INFO L142 QuantifierPusher]: treesize reduction 20, result has 44.4 percent of original size [2021-06-11 11:14:29,631 INFO L147 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size 12 [2021-06-11 11:14:29,631 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-06-11 11:14:29,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:29,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:14:29,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:14:29,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:14:29,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950426352] [2021-06-11 11:14:29,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:14:29,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:14:29,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098939975] [2021-06-11 11:14:29,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:14:29,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:14:29,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:14:29,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:14:29,634 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 298 [2021-06-11 11:14:29,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 68 transitions, 697 flow. Second operand has 9 states, 9 states have (on average 56.888888888888886) internal successors, (512), 9 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:14:29,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 298 [2021-06-11 11:14:29,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:14:29,691 INFO L129 PetriNetUnfolder]: 21/89 cut-off events. [2021-06-11 11:14:29,692 INFO L130 PetriNetUnfolder]: For 639/639 co-relation queries the response was YES. [2021-06-11 11:14:29,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 89 events. 21/89 cut-off events. For 639/639 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 242 event pairs, 4 based on Foata normal form. 2/90 useless extension candidates. Maximal degree in co-relation 590. Up to 29 conditions per place. [2021-06-11 11:14:29,692 INFO L132 encePairwiseOnDemand]: 285/298 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2021-06-11 11:14:29,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 58 transitions, 740 flow [2021-06-11 11:14:29,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 11:14:29,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 11:14:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 578 transitions. [2021-06-11 11:14:29,693 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19395973154362417 [2021-06-11 11:14:29,693 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 578 transitions. [2021-06-11 11:14:29,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 578 transitions. [2021-06-11 11:14:29,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:14:29,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 578 transitions. [2021-06-11 11:14:29,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 57.8) internal successors, (578), 10 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 298.0) internal successors, (3278), 11 states have internal predecessors, (3278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,695 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 298.0) internal successors, (3278), 11 states have internal predecessors, (3278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,695 INFO L185 Difference]: Start difference. First operand has 118 places, 68 transitions, 697 flow. Second operand 10 states and 578 transitions. [2021-06-11 11:14:29,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 58 transitions, 740 flow [2021-06-11 11:14:29,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 58 transitions, 610 flow, removed 14 selfloop flow, removed 22 redundant places. [2021-06-11 11:14:29,698 INFO L241 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2021-06-11 11:14:29,698 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2021-06-11 11:14:29,698 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 46 predicate places. [2021-06-11 11:14:29,698 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:14:29,698 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 0 transitions, 0 flow [2021-06-11 11:14:29,698 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 0 transitions, 0 flow [2021-06-11 11:14:29,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 11:14:29,699 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 11:14:29,699 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 11:14:29,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 11:14:29,699 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 11:14:29,699 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:14:29,699 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:14:29,699 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 11:14:29,699 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 11:14:29,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 56.888888888888886) internal successors, (512), 9 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 11:14:29,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-11 11:14:29,702 INFO L202 PluginConnector]: Adding new model bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 11:14:29 BasicIcfg [2021-06-11 11:14:29,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 11:14:29,703 INFO L168 Benchmark]: Toolchain (without parser) took 419462.95 ms. Allocated memory was 364.9 MB in the beginning and 15.3 GB in the end (delta: 14.9 GB). Free memory was 344.3 MB in the beginning and 12.9 GB in the end (delta: -12.6 GB). Peak memory consumption was 2.3 GB. Max. memory is 16.0 GB. [2021-06-11 11:14:29,703 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 364.9 MB. Free memory is still 345.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 11:14:29,703 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.22 ms. Allocated memory is still 364.9 MB. Free memory was 344.2 MB in the beginning and 342.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 11:14:29,703 INFO L168 Benchmark]: Boogie Preprocessor took 22.69 ms. Allocated memory is still 364.9 MB. Free memory was 342.8 MB in the beginning and 341.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 11:14:29,703 INFO L168 Benchmark]: RCFGBuilder took 201.63 ms. Allocated memory is still 364.9 MB. Free memory was 341.7 MB in the beginning and 327.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-11 11:14:29,703 INFO L168 Benchmark]: TraceAbstraction took 419215.59 ms. Allocated memory was 364.9 MB in the beginning and 15.3 GB in the end (delta: 14.9 GB). Free memory was 327.5 MB in the beginning and 12.9 GB in the end (delta: -12.6 GB). Peak memory consumption was 2.3 GB. Max. memory is 16.0 GB. [2021-06-11 11:14:29,703 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 0.09 ms. Allocated memory is still 364.9 MB. Free memory is still 345.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.22 ms. Allocated memory is still 364.9 MB. Free memory was 344.2 MB in the beginning and 342.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.69 ms. Allocated memory is still 364.9 MB. Free memory was 342.8 MB in the beginning and 341.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 201.63 ms. Allocated memory is still 364.9 MB. Free memory was 341.7 MB in the beginning and 327.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 419215.59 ms. Allocated memory was 364.9 MB in the beginning and 15.3 GB in the end (delta: 14.9 GB). Free memory was 327.5 MB in the beginning and 12.9 GB in the end (delta: -12.6 GB). Peak memory consumption was 2.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 468.2ms, 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: 0, positive unconditional: 873, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 688, positive: 615, positive conditional: 0, positive unconditional: 615, 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: 688, positive: 615, positive conditional: 0, positive unconditional: 615, 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: 688, positive: 590, positive conditional: 0, positive unconditional: 590, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 98, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 253, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 181, negative conditional: 0, negative unconditional: 181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 973, positive: 258, positive conditional: 0, positive unconditional: 258, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 688, unknown conditional: 0, unknown unconditional: 688] , Statistics on independence cache: Total cache size (in pairs): 793, Positive cache size: 720, Positive conditional cache size: 0, Positive unconditional cache size: 720, Negative cache size: 73, Negative conditional cache size: 0, Negative unconditional cache size: 73 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.1ms, 56 PlacesBefore, 54 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 978 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1233 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 444, positive: 398, positive conditional: 0, positive unconditional: 398, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 51, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 51, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 51, positive: 50, positive conditional: 0, positive unconditional: 50, 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: 0, negative unconditional: 1, 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: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 444, positive: 348, positive conditional: 0, positive unconditional: 348, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 51, unknown conditional: 0, unknown unconditional: 51] , Statistics on independence cache: Total cache size (in pairs): 844, Positive cache size: 770, Positive conditional cache size: 0, Positive unconditional cache size: 770, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.6ms, 64 PlacesBefore, 64 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 1276 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 352, positive: 319, positive conditional: 0, positive unconditional: 319, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 19, positive conditional: 0, positive unconditional: 19, 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: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 352, positive: 300, positive conditional: 0, positive unconditional: 300, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , Statistics on independence cache: Total cache size (in pairs): 864, Positive cache size: 789, Positive conditional cache size: 0, Positive unconditional cache size: 789, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.3ms, 67 PlacesBefore, 67 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 1194 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 931 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 246, positive: 218, positive conditional: 0, positive unconditional: 218, negative: 28, negative conditional: 0, negative unconditional: 28, 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: 246, positive: 218, positive conditional: 0, positive unconditional: 218, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 864, Positive cache size: 789, Positive conditional cache size: 0, Positive unconditional cache size: 789, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.5ms, 68 PlacesBefore, 68 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 1140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 747 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 157, positive: 134, positive conditional: 0, positive unconditional: 134, negative: 23, negative conditional: 0, negative unconditional: 23, 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: 157, positive: 134, positive conditional: 0, positive unconditional: 134, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 864, Positive cache size: 789, Positive conditional cache size: 0, Positive unconditional cache size: 789, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.9ms, 81 PlacesBefore, 79 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 1264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 780 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 23, negative conditional: 0, negative unconditional: 23, 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: 124, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 864, Positive cache size: 789, Positive conditional cache size: 0, Positive unconditional cache size: 789, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 171.1ms, 96 PlacesBefore, 96 PlacesAfterwards, 141 TransitionsBefore, 141 TransitionsAfterwards, 2064 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1311 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 115, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 8, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 8, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 115, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 872, Positive cache size: 794, Positive conditional cache size: 0, Positive unconditional cache size: 794, Negative cache size: 78, Negative conditional cache size: 0, Negative unconditional cache size: 78 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 161.5ms, 111 PlacesBefore, 111 PlacesAfterwards, 153 TransitionsBefore, 153 TransitionsAfterwards, 2208 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 103, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 28, negative conditional: 0, negative unconditional: 28, 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: 103, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 872, Positive cache size: 794, Positive conditional cache size: 0, Positive unconditional cache size: 794, Negative cache size: 78, Negative conditional cache size: 0, Negative unconditional cache size: 78 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 445.3ms, 126 PlacesBefore, 126 PlacesAfterwards, 217 TransitionsBefore, 217 TransitionsAfterwards, 3450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 848 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 104, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 104, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 873, Positive cache size: 794, Positive conditional cache size: 0, Positive unconditional cache size: 794, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 455.2ms, 140 PlacesBefore, 140 PlacesAfterwards, 228 TransitionsBefore, 228 TransitionsAfterwards, 3706 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 848 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 104, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 16, negative conditional: 0, negative unconditional: 16, 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: 104, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 873, Positive cache size: 794, Positive conditional cache size: 0, Positive unconditional cache size: 794, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 537.1ms, 157 PlacesBefore, 157 PlacesAfterwards, 270 TransitionsBefore, 270 TransitionsAfterwards, 4150 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 940 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 123, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 17, negative conditional: 0, negative unconditional: 17, 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: 123, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 873, Positive cache size: 794, Positive conditional cache size: 0, Positive unconditional cache size: 794, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 548.4ms, 169 PlacesBefore, 169 PlacesAfterwards, 284 TransitionsBefore, 284 TransitionsAfterwards, 4416 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 943 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 131, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 17, negative conditional: 0, negative unconditional: 17, 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: 131, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 873, Positive cache size: 794, Positive conditional cache size: 0, Positive unconditional cache size: 794, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1115.0ms, 177 PlacesBefore, 177 PlacesAfterwards, 318 TransitionsBefore, 318 TransitionsAfterwards, 4576 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 2635 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 679, positive: 641, positive conditional: 0, positive unconditional: 641, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, 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: 11, positive: 11, positive conditional: 0, 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: 11, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 679, positive: 630, positive conditional: 0, positive unconditional: 630, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 1084, Positive cache size: 1005, Positive conditional cache size: 0, Positive unconditional cache size: 1005, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 284.3ms, 181 PlacesBefore, 181 PlacesAfterwards, 290 TransitionsBefore, 290 TransitionsAfterwards, 2844 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1154 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 192, positive: 173, positive conditional: 0, positive unconditional: 173, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 192, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1085, Positive cache size: 1006, Positive conditional cache size: 0, Positive unconditional cache size: 1006, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 804.5ms, 210 PlacesBefore, 209 PlacesAfterwards, 429 TransitionsBefore, 429 TransitionsAfterwards, 4114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1767 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 496, positive: 480, positive conditional: 0, positive unconditional: 480, negative: 16, negative conditional: 0, negative unconditional: 16, 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: 496, positive: 480, positive conditional: 0, positive unconditional: 480, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1085, Positive cache size: 1006, Positive conditional cache size: 0, Positive unconditional cache size: 1006, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 666.0ms, 216 PlacesBefore, 214 PlacesAfterwards, 422 TransitionsBefore, 422 TransitionsAfterwards, 4066 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1719 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 468, positive: 452, positive conditional: 0, positive unconditional: 452, negative: 16, negative conditional: 0, negative unconditional: 16, 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: 468, positive: 452, positive conditional: 0, positive unconditional: 452, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1085, Positive cache size: 1006, Positive conditional cache size: 0, Positive unconditional cache size: 1006, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2073.7ms, 227 PlacesBefore, 225 PlacesAfterwards, 486 TransitionsBefore, 484 TransitionsAfterwards, 4564 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 5617 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1573, positive: 1539, positive conditional: 0, positive unconditional: 1539, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 1573, positive: 1526, positive conditional: 0, positive unconditional: 1526, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1175.2ms, 243 PlacesBefore, 243 PlacesAfterwards, 583 TransitionsBefore, 583 TransitionsAfterwards, 5008 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2867 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 515, positive: 498, positive conditional: 0, positive unconditional: 498, negative: 17, negative conditional: 0, negative unconditional: 17, 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: 515, positive: 498, positive conditional: 0, positive unconditional: 498, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1294.6ms, 254 PlacesBefore, 254 PlacesAfterwards, 598 TransitionsBefore, 598 TransitionsAfterwards, 5110 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2788 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 549, positive: 533, positive conditional: 0, positive unconditional: 533, negative: 16, negative conditional: 0, negative unconditional: 16, 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: 549, positive: 533, positive conditional: 0, positive unconditional: 533, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2349.6ms, 274 PlacesBefore, 274 PlacesAfterwards, 766 TransitionsBefore, 766 TransitionsAfterwards, 6740 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 6651 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 30, negative conditional: 0, negative unconditional: 30, 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: 47, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3261.8ms, 283 PlacesBefore, 283 PlacesAfterwards, 813 TransitionsBefore, 813 TransitionsAfterwards, 7014 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 7655 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 33, negative conditional: 0, negative unconditional: 33, 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: 66, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2504.1ms, 285 PlacesBefore, 285 PlacesAfterwards, 769 TransitionsBefore, 769 TransitionsAfterwards, 5816 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3633.1ms, 314 PlacesBefore, 314 PlacesAfterwards, 1015 TransitionsBefore, 1015 TransitionsAfterwards, 7596 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5183.7ms, 348 PlacesBefore, 348 PlacesAfterwards, 1307 TransitionsBefore, 1307 TransitionsAfterwards, 9224 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4964.4ms, 355 PlacesBefore, 355 PlacesAfterwards, 1324 TransitionsBefore, 1324 TransitionsAfterwards, 9278 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4737.0ms, 363 PlacesBefore, 362 PlacesAfterwards, 1199 TransitionsBefore, 1199 TransitionsAfterwards, 7966 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4656.8ms, 377 PlacesBefore, 376 PlacesAfterwards, 1172 TransitionsBefore, 1172 TransitionsAfterwards, 8032 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5136.2ms, 386 PlacesBefore, 386 PlacesAfterwards, 1236 TransitionsBefore, 1236 TransitionsAfterwards, 7952 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4758.6ms, 394 PlacesBefore, 394 PlacesAfterwards, 1262 TransitionsBefore, 1262 TransitionsAfterwards, 8050 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4646.1ms, 401 PlacesBefore, 401 PlacesAfterwards, 1173 TransitionsBefore, 1173 TransitionsAfterwards, 6952 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4403.3ms, 412 PlacesBefore, 408 PlacesAfterwards, 1102 TransitionsBefore, 1102 TransitionsAfterwards, 6376 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4404.8ms, 416 PlacesBefore, 416 PlacesAfterwards, 1114 TransitionsBefore, 1114 TransitionsAfterwards, 6428 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4565.3ms, 431 PlacesBefore, 430 PlacesAfterwards, 1137 TransitionsBefore, 1137 TransitionsAfterwards, 6444 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5543.6ms, 436 PlacesBefore, 436 PlacesAfterwards, 1222 TransitionsBefore, 1222 TransitionsAfterwards, 6706 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7843.8ms, 450 PlacesBefore, 450 PlacesAfterwards, 1329 TransitionsBefore, 1329 TransitionsAfterwards, 7020 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8161.2ms, 471 PlacesBefore, 471 PlacesAfterwards, 1387 TransitionsBefore, 1387 TransitionsAfterwards, 7340 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8123.1ms, 487 PlacesBefore, 485 PlacesAfterwards, 1423 TransitionsBefore, 1423 TransitionsAfterwards, 6938 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4981.2ms, 496 PlacesBefore, 481 PlacesAfterwards, 1155 TransitionsBefore, 1155 TransitionsAfterwards, 5202 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4944.0ms, 474 PlacesBefore, 474 PlacesAfterwards, 1170 TransitionsBefore, 1170 TransitionsAfterwards, 5246 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5031.4ms, 485 PlacesBefore, 485 PlacesAfterwards, 1184 TransitionsBefore, 1184 TransitionsAfterwards, 5342 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5358.2ms, 498 PlacesBefore, 497 PlacesAfterwards, 1178 TransitionsBefore, 1178 TransitionsAfterwards, 5186 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4885.4ms, 507 PlacesBefore, 506 PlacesAfterwards, 1083 TransitionsBefore, 1083 TransitionsAfterwards, 4982 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4011.2ms, 517 PlacesBefore, 497 PlacesAfterwards, 948 TransitionsBefore, 948 TransitionsAfterwards, 4420 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3543.2ms, 471 PlacesBefore, 456 PlacesAfterwards, 891 TransitionsBefore, 891 TransitionsAfterwards, 4174 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1240.2ms, 410 PlacesBefore, 326 PlacesAfterwards, 515 TransitionsBefore, 515 TransitionsAfterwards, 1992 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): 1398, Positive cache size: 1319, Positive conditional cache size: 0, Positive unconditional cache size: 1319, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 671.2ms, 289 PlacesBefore, 279 PlacesAfterwards, 363 TransitionsBefore, 363 TransitionsAfterwards, 1396 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1423, Positive cache size: 1344, Positive conditional cache size: 0, Positive unconditional cache size: 1344, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3096.0ms, 249 PlacesBefore, 232 PlacesAfterwards, 278 TransitionsBefore, 276 TransitionsAfterwards, 964 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 212 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 212 TotalNumberOfCompositions, 8904 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8904, positive: 8904, positive conditional: 0, positive unconditional: 8904, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8904, positive: 8900, positive conditional: 0, positive unconditional: 8900, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 4607, Positive cache size: 4528, Positive conditional cache size: 0, Positive unconditional cache size: 4528, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.9ms, 232 PlacesBefore, 222 PlacesAfterwards, 275 TransitionsBefore, 275 TransitionsAfterwards, 664 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): 4607, Positive cache size: 4528, Positive conditional cache size: 0, Positive unconditional cache size: 4528, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 248.5ms, 222 PlacesBefore, 220 PlacesAfterwards, 292 TransitionsBefore, 292 TransitionsAfterwards, 754 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): 4607, Positive cache size: 4528, Positive conditional cache size: 0, Positive unconditional cache size: 4528, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 109.4ms, 224 PlacesBefore, 208 PlacesAfterwards, 192 TransitionsBefore, 192 TransitionsAfterwards, 468 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): 4607, Positive cache size: 4528, Positive conditional cache size: 0, Positive unconditional cache size: 4528, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 115.3ms, 199 PlacesBefore, 195 PlacesAfterwards, 173 TransitionsBefore, 173 TransitionsAfterwards, 508 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): 4607, Positive cache size: 4528, Positive conditional cache size: 0, Positive unconditional cache size: 4528, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 100.7ms, 197 PlacesBefore, 195 PlacesAfterwards, 172 TransitionsBefore, 172 TransitionsAfterwards, 492 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): 4607, Positive cache size: 4528, Positive conditional cache size: 0, Positive unconditional cache size: 4528, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.4ms, 191 PlacesBefore, 151 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 94 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): 4607, Positive cache size: 4528, Positive conditional cache size: 0, Positive unconditional cache size: 4528, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80.0ms, 133 PlacesBefore, 127 PlacesAfterwards, 94 TransitionsBefore, 92 TransitionsAfterwards, 90 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 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): 4634, Positive cache size: 4555, Positive conditional cache size: 0, Positive unconditional cache size: 4555, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.8ms, 127 PlacesBefore, 122 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4634, Positive cache size: 4555, Positive conditional cache size: 0, Positive unconditional cache size: 4555, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7ms, 121 PlacesBefore, 118 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4634, Positive cache size: 4555, Positive conditional cache size: 0, Positive unconditional cache size: 4555, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 94 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): 4634, Positive cache size: 4555, Positive conditional cache size: 0, Positive unconditional cache size: 4555, Negative cache size: 79, Negative conditional cache size: 0, Negative unconditional cache size: 79 - 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: 6.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 419135.8ms, OverallIterations: 56, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 276026.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 536.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1117 SDtfs, 2623 SDslu, 827 SDs, 0 SdLazy, 14352 SolverSat, 2110 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5546.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 786 GetRequests, 111 SyntacticMatches, 59 SemanticMatches, 616 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1333 ImplicationChecksByTransitivity, 5506.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46170occurred in iteration=36, InterpolantAutomatonStates: 616, 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: 50.2ms SsaConstructionTime, 286.3ms SatisfiabilityAnalysisTime, 4406.3ms InterpolantComputationTime, 2039 NumberOfCodeBlocks, 2039 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 1983 ConstructedInterpolants, 0 QuantifiedInterpolants, 13259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 56 InterpolantComputations, 56 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...