/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/fork_loop_noop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 13:15:34,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 13:15:34,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 13:15:34,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 13:15:34,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 13:15:34,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 13:15:34,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 13:15:34,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 13:15:34,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 13:15:34,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 13:15:34,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 13:15:34,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 13:15:34,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 13:15:34,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 13:15:34,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 13:15:34,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 13:15:34,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 13:15:34,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 13:15:34,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 13:15:34,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 13:15:34,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 13:15:34,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 13:15:34,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 13:15:34,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 13:15:34,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 13:15:34,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 13:15:34,398 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 13:15:34,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 13:15:34,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 13:15:34,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 13:15:34,402 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 13:15:34,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 13:15:34,403 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 13:15:34,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 13:15:34,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 13:15:34,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 13:15:34,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 13:15:34,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 13:15:34,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 13:15:34,404 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 13:15:34,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 13:15:34,404 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 13:15:34,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 13:15:34,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 13:15:34,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 13:15:34,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 13:15:34,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 13:15:34,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 13:15:34,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 13:15:34,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 13:15:34,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 13:15:34,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 13:15:34,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 13:15:34,406 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 13:15:34,406 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 13:15:34,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 13:15:34,406 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 13:15:34,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 13:15:34,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 13:15:34,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 13:15:34,880 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 13:15:34,882 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 13:15:34,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/fork_loop_noop.bpl [2021-03-26 13:15:34,883 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/fork_loop_noop.bpl' [2021-03-26 13:15:34,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 13:15:34,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 13:15:34,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 13:15:34,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 13:15:34,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 13:15:34,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... [2021-03-26 13:15:34,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... [2021-03-26 13:15:34,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 13:15:34,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 13:15:34,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 13:15:34,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 13:15:34,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... [2021-03-26 13:15:34,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... [2021-03-26 13:15:34,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... [2021-03-26 13:15:34,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... [2021-03-26 13:15:34,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... [2021-03-26 13:15:34,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... [2021-03-26 13:15:34,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... [2021-03-26 13:15:34,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 13:15:34,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 13:15:34,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 13:15:34,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 13:15:34,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 13:15:35,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 13:15:35,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 13:15:35,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 13:15:35,072 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2021-03-26 13:15:35,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-03-26 13:15:35,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-03-26 13:15:35,073 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 13:15:35,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 13:15:35,197 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-03-26 13:15:35,199 INFO L202 PluginConnector]: Adding new model fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:15:35 BoogieIcfgContainer [2021-03-26 13:15:35,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 13:15:35,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 13:15:35,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 13:15:35,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 13:15:35,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:15:34" (1/2) ... [2021-03-26 13:15:35,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afe457f and model type fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 01:15:35, skipping insertion in model container [2021-03-26 13:15:35,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:15:35" (2/2) ... [2021-03-26 13:15:35,207 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_loop_noop.bpl [2021-03-26 13:15:35,214 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 13:15:35,218 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 13:15:35,219 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 13:15:35,247 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:35,264 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:35,300 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:35,301 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:35,301 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:35,301 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:35,302 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:35,302 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:35,302 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:35,302 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:35,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 11 places, 8 transitions, 21 flow [2021-03-26 13:15:35,329 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-26 13:15:35,329 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 19 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 13:15:35,331 INFO L82 GeneralOperation]: Start removeDead. Operand has 11 places, 8 transitions, 21 flow [2021-03-26 13:15:35,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 9 places, 6 transitions, 17 flow [2021-03-26 13:15:35,335 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:35,354 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 9 places, 6 transitions, 17 flow [2021-03-26 13:15:35,358 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 9 places, 6 transitions, 17 flow [2021-03-26 13:15:35,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 9 places, 6 transitions, 17 flow [2021-03-26 13:15:35,365 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-26 13:15:35,365 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 8 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 13:15:35,367 INFO L142 LiptonReduction]: Number of co-enabled transitions 8 [2021-03-26 13:15:35,403 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 13:15:35,404 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 13:15:35,406 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-26 13:15:35,420 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:35,420 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,420 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:35,421 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:35,430 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:35,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:35,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1315, now seen corresponding path program 1 times [2021-03-26 13:15:35,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:35,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083985734] [2021-03-26 13:15:35,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:35,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:35,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:35,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:35,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083985734] [2021-03-26 13:15:35,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:35,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:35,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962865141] [2021-03-26 13:15:35,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:35,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:35,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:35,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:35,588 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 9 [2021-03-26 13:15:35,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 places, 5 transitions, 15 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:35,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 9 [2021-03-26 13:15:35,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:35,596 INFO L129 PetriNetUnfolder]: 0/4 cut-off events. [2021-03-26 13:15:35,596 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11 conditions, 4 events. 0/4 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 2/6 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 13:15:35,597 INFO L132 encePairwiseOnDemand]: 7/9 looper letters, 0 selfloop transitions, 1 changer transitions 0/4 dead transitions. [2021-03-26 13:15:35,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 4 transitions, 15 flow [2021-03-26 13:15:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:35,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2021-03-26 13:15:35,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2021-03-26 13:15:35,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 20 transitions. [2021-03-26 13:15:35,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 20 transitions. [2021-03-26 13:15:35,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:35,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 20 transitions. [2021-03-26 13:15:35,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,613 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,614 INFO L185 Difference]: Start difference. First operand has 8 places, 5 transitions, 15 flow. Second operand 3 states and 20 transitions. [2021-03-26 13:15:35,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 4 transitions, 15 flow [2021-03-26 13:15:35,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 4 transitions, 15 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:35,617 INFO L241 Difference]: Finished difference. Result has 9 places, 4 transitions, 15 flow [2021-03-26 13:15:35,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=9, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=15, PETRI_PLACES=9, PETRI_TRANSITIONS=4} [2021-03-26 13:15:35,619 INFO L343 CegarLoopForPetriNet]: 8 programPoint places, 1 predicate places. [2021-03-26 13:15:35,619 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:35,620 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 9 places, 4 transitions, 15 flow [2021-03-26 13:15:35,620 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 9 places, 4 transitions, 15 flow [2021-03-26 13:15:35,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 9 places, 4 transitions, 15 flow [2021-03-26 13:15:35,622 INFO L129 PetriNetUnfolder]: 0/4 cut-off events. [2021-03-26 13:15:35,622 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11 conditions, 4 events. 0/4 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/4 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 13:15:35,622 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 13:15:35,623 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:35,623 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:35,623 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-26 13:15:35,624 INFO L480 AbstractCegarLoop]: Abstraction has has 9 places, 4 transitions, 15 flow [2021-03-26 13:15:35,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,624 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:35,624 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-26 13:15:35,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 13:15:35,625 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:35,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:35,625 INFO L82 PathProgramCache]: Analyzing trace with hash 41033, now seen corresponding path program 1 times [2021-03-26 13:15:35,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:35,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837650984] [2021-03-26 13:15:35,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:35,629 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:35,631 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:35,641 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:35,641 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:35,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 13:15:35,643 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:35,643 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-03-26 13:15:35,648 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:35,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:35,650 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:35,650 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:35,650 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:35,650 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:35,650 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:35,651 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:35,651 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:35,651 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:35,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 16 places, 11 transitions, 34 flow [2021-03-26 13:15:35,655 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-26 13:15:35,655 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 38 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 13:15:35,655 INFO L82 GeneralOperation]: Start removeDead. Operand has 16 places, 11 transitions, 34 flow [2021-03-26 13:15:35,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 14 places, 9 transitions, 30 flow [2021-03-26 13:15:35,656 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:35,656 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 9 transitions, 30 flow [2021-03-26 13:15:35,656 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 9 transitions, 30 flow [2021-03-26 13:15:35,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 9 transitions, 30 flow [2021-03-26 13:15:35,659 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-26 13:15:35,659 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 11 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 13:15:35,660 INFO L142 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-26 13:15:35,727 INFO L154 LiptonReduction]: Checked pairs total: 9 [2021-03-26 13:15:35,728 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 13:15:35,728 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-26 13:15:35,730 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:35,730 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,730 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:35,730 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:35,730 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:35,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:35,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-03-26 13:15:35,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:35,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690621618] [2021-03-26 13:15:35,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:35,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:35,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:35,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690621618] [2021-03-26 13:15:35,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:35,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:35,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259805639] [2021-03-26 13:15:35,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:35,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:35,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:35,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:35,755 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 13 [2021-03-26 13:15:35,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 7 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:35,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 13 [2021-03-26 13:15:35,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:35,757 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-26 13:15:35,758 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 6 events. 0/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 3/9 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 13:15:35,758 INFO L132 encePairwiseOnDemand]: 11/13 looper letters, 0 selfloop transitions, 1 changer transitions 0/6 dead transitions. [2021-03-26 13:15:35,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 6 transitions, 26 flow [2021-03-26 13:15:35,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2021-03-26 13:15:35,759 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2021-03-26 13:15:35,759 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 32 transitions. [2021-03-26 13:15:35,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 32 transitions. [2021-03-26 13:15:35,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:35,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 32 transitions. [2021-03-26 13:15:35,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,773 INFO L185 Difference]: Start difference. First operand has 12 places, 7 transitions, 26 flow. Second operand 3 states and 32 transitions. [2021-03-26 13:15:35,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 6 transitions, 26 flow [2021-03-26 13:15:35,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 6 transitions, 24 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:35,774 INFO L241 Difference]: Finished difference. Result has 13 places, 6 transitions, 24 flow [2021-03-26 13:15:35,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=24, PETRI_PLACES=13, PETRI_TRANSITIONS=6} [2021-03-26 13:15:35,775 INFO L343 CegarLoopForPetriNet]: 12 programPoint places, 1 predicate places. [2021-03-26 13:15:35,775 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:35,775 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 13 places, 6 transitions, 24 flow [2021-03-26 13:15:35,775 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 13 places, 6 transitions, 24 flow [2021-03-26 13:15:35,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 13 places, 6 transitions, 24 flow [2021-03-26 13:15:35,777 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-26 13:15:35,777 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 6 events. 0/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 13:15:35,778 INFO L142 LiptonReduction]: Number of co-enabled transitions 8 [2021-03-26 13:15:35,778 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:35,779 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:35,779 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-26 13:15:35,780 INFO L480 AbstractCegarLoop]: Abstraction has has 13 places, 6 transitions, 24 flow [2021-03-26 13:15:35,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:35,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:35,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-03-26 13:15:35,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 13:15:35,781 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:35,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:35,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1643499, now seen corresponding path program 1 times [2021-03-26 13:15:35,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:35,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73921170] [2021-03-26 13:15:35,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:35,785 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:35,787 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:35,788 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:35,788 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:35,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 13:15:35,788 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:35,789 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-03-26 13:15:35,796 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:35,796 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:35,797 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:35,798 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:35,798 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:35,798 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:35,798 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:35,798 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:35,798 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:35,798 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:35,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 14 transitions, 49 flow [2021-03-26 13:15:35,803 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-26 13:15:35,804 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 65 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 13:15:35,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 14 transitions, 49 flow [2021-03-26 13:15:35,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 12 transitions, 45 flow [2021-03-26 13:15:35,805 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:35,805 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 12 transitions, 45 flow [2021-03-26 13:15:35,805 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 12 transitions, 45 flow [2021-03-26 13:15:35,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 12 transitions, 45 flow [2021-03-26 13:15:35,809 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-26 13:15:35,809 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:35,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 13:15:35,810 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-26 13:15:36,130 INFO L154 LiptonReduction]: Checked pairs total: 21 [2021-03-26 13:15:36,130 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 13:15:36,131 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 326 [2021-03-26 13:15:36,132 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:36,133 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,133 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:36,133 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:36,133 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:36,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:36,133 INFO L82 PathProgramCache]: Analyzing trace with hash 2211, now seen corresponding path program 1 times [2021-03-26 13:15:36,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:36,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799913982] [2021-03-26 13:15:36,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:36,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:36,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:36,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799913982] [2021-03-26 13:15:36,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:36,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:36,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933964373] [2021-03-26 13:15:36,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:36,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:36,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:36,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:36,186 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 17 [2021-03-26 13:15:36,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 9 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:36,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 17 [2021-03-26 13:15:36,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:36,189 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-26 13:15:36,189 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 4/12 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 13:15:36,190 INFO L132 encePairwiseOnDemand]: 15/17 looper letters, 0 selfloop transitions, 1 changer transitions 0/8 dead transitions. [2021-03-26 13:15:36,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 8 transitions, 39 flow [2021-03-26 13:15:36,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:36,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2021-03-26 13:15:36,191 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8627450980392157 [2021-03-26 13:15:36,191 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 44 transitions. [2021-03-26 13:15:36,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 44 transitions. [2021-03-26 13:15:36,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:36,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 44 transitions. [2021-03-26 13:15:36,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,201 INFO L185 Difference]: Start difference. First operand has 16 places, 9 transitions, 39 flow. Second operand 3 states and 44 transitions. [2021-03-26 13:15:36,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 8 transitions, 39 flow [2021-03-26 13:15:36,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 8 transitions, 33 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:36,202 INFO L241 Difference]: Finished difference. Result has 17 places, 8 transitions, 33 flow [2021-03-26 13:15:36,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=17, PETRI_TRANSITIONS=8} [2021-03-26 13:15:36,202 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 1 predicate places. [2021-03-26 13:15:36,203 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:36,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 8 transitions, 33 flow [2021-03-26 13:15:36,203 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 8 transitions, 33 flow [2021-03-26 13:15:36,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 8 transitions, 33 flow [2021-03-26 13:15:36,211 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-26 13:15:36,212 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 13:15:36,212 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 13:15:36,213 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:36,213 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:36,213 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 13:15:36,214 INFO L480 AbstractCegarLoop]: Abstraction has has 17 places, 8 transitions, 33 flow [2021-03-26 13:15:36,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,214 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:36,214 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-26 13:15:36,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 13:15:36,215 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:36,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:36,215 INFO L82 PathProgramCache]: Analyzing trace with hash 66279044, now seen corresponding path program 1 times [2021-03-26 13:15:36,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:36,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491452824] [2021-03-26 13:15:36,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:36,228 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:36,230 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:36,232 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:36,232 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:36,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 13:15:36,233 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:36,233 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-03-26 13:15:36,249 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:36,250 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:36,253 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:36,253 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:36,253 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:36,253 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:36,253 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:36,253 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:36,253 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:36,253 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:36,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 17 transitions, 66 flow [2021-03-26 13:15:36,270 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-03-26 13:15:36,270 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 91 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 13:15:36,270 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 17 transitions, 66 flow [2021-03-26 13:15:36,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 15 transitions, 62 flow [2021-03-26 13:15:36,271 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:36,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 15 transitions, 62 flow [2021-03-26 13:15:36,272 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 15 transitions, 62 flow [2021-03-26 13:15:36,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 15 transitions, 62 flow [2021-03-26 13:15:36,278 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 13:15:36,279 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 13:15:36,281 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 13:15:36,379 INFO L154 LiptonReduction]: Checked pairs total: 38 [2021-03-26 13:15:36,379 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 13:15:36,379 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 108 [2021-03-26 13:15:36,381 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:36,381 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,381 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:36,382 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:36,382 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:36,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:36,382 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 1 times [2021-03-26 13:15:36,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:36,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469691498] [2021-03-26 13:15:36,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:36,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:36,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:36,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469691498] [2021-03-26 13:15:36,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:36,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:36,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873007087] [2021-03-26 13:15:36,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:36,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:36,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:36,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:36,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 21 [2021-03-26 13:15:36,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 11 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:36,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 21 [2021-03-26 13:15:36,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:36,396 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-26 13:15:36,397 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 5/15 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 13:15:36,397 INFO L132 encePairwiseOnDemand]: 19/21 looper letters, 0 selfloop transitions, 1 changer transitions 0/10 dead transitions. [2021-03-26 13:15:36,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 10 transitions, 54 flow [2021-03-26 13:15:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:36,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:36,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2021-03-26 13:15:36,398 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-03-26 13:15:36,398 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 56 transitions. [2021-03-26 13:15:36,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 56 transitions. [2021-03-26 13:15:36,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:36,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 56 transitions. [2021-03-26 13:15:36,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,400 INFO L185 Difference]: Start difference. First operand has 20 places, 11 transitions, 54 flow. Second operand 3 states and 56 transitions. [2021-03-26 13:15:36,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 10 transitions, 54 flow [2021-03-26 13:15:36,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 10 transitions, 42 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:36,407 INFO L241 Difference]: Finished difference. Result has 21 places, 10 transitions, 42 flow [2021-03-26 13:15:36,408 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=21, PETRI_TRANSITIONS=10} [2021-03-26 13:15:36,408 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2021-03-26 13:15:36,409 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:36,409 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 10 transitions, 42 flow [2021-03-26 13:15:36,409 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 10 transitions, 42 flow [2021-03-26 13:15:36,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 10 transitions, 42 flow [2021-03-26 13:15:36,412 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-26 13:15:36,412 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 13:15:36,412 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-26 13:15:36,413 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:36,413 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:36,414 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 13:15:36,415 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 10 transitions, 42 flow [2021-03-26 13:15:36,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,415 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:36,415 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-26 13:15:36,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 13:15:36,416 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:36,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:36,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1646739026, now seen corresponding path program 1 times [2021-03-26 13:15:36,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:36,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322591451] [2021-03-26 13:15:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:36,422 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:36,427 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:36,428 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:36,428 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:36,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 13:15:36,429 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:36,429 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-03-26 13:15:36,441 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:36,441 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:36,443 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:36,443 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:36,443 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:36,443 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:36,443 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:36,443 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:36,443 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:36,443 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:36,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 20 transitions, 85 flow [2021-03-26 13:15:36,451 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-26 13:15:36,451 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 111 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-26 13:15:36,451 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 20 transitions, 85 flow [2021-03-26 13:15:36,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 18 transitions, 81 flow [2021-03-26 13:15:36,455 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:36,456 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 18 transitions, 81 flow [2021-03-26 13:15:36,456 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 18 transitions, 81 flow [2021-03-26 13:15:36,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 18 transitions, 81 flow [2021-03-26 13:15:36,460 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-26 13:15:36,460 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-26 13:15:36,461 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 13:15:36,668 INFO L154 LiptonReduction]: Checked pairs total: 60 [2021-03-26 13:15:36,669 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 13:15:36,669 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 214 [2021-03-26 13:15:36,671 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:36,671 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,671 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:36,671 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:36,671 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:36,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:36,672 INFO L82 PathProgramCache]: Analyzing trace with hash 3619, now seen corresponding path program 1 times [2021-03-26 13:15:36,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:36,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918331810] [2021-03-26 13:15:36,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:36,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:36,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:36,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918331810] [2021-03-26 13:15:36,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:36,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:36,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271668759] [2021-03-26 13:15:36,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:36,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:36,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:36,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:36,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 25 [2021-03-26 13:15:36,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 13 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,700 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:36,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 25 [2021-03-26 13:15:36,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:36,703 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 13:15:36,703 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 6/18 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-26 13:15:36,703 INFO L132 encePairwiseOnDemand]: 23/25 looper letters, 0 selfloop transitions, 1 changer transitions 0/12 dead transitions. [2021-03-26 13:15:36,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 12 transitions, 71 flow [2021-03-26 13:15:36,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2021-03-26 13:15:36,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9066666666666666 [2021-03-26 13:15:36,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 68 transitions. [2021-03-26 13:15:36,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 68 transitions. [2021-03-26 13:15:36,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:36,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 68 transitions. [2021-03-26 13:15:36,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,706 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,706 INFO L185 Difference]: Start difference. First operand has 24 places, 13 transitions, 71 flow. Second operand 3 states and 68 transitions. [2021-03-26 13:15:36,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 12 transitions, 71 flow [2021-03-26 13:15:36,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 12 transitions, 51 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:36,708 INFO L241 Difference]: Finished difference. Result has 25 places, 12 transitions, 51 flow [2021-03-26 13:15:36,708 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=12} [2021-03-26 13:15:36,708 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2021-03-26 13:15:36,708 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:36,709 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 12 transitions, 51 flow [2021-03-26 13:15:36,709 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 12 transitions, 51 flow [2021-03-26 13:15:36,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 12 transitions, 51 flow [2021-03-26 13:15:36,720 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 13:15:36,720 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-26 13:15:36,720 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 13:15:36,721 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:36,721 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:36,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 13:15:36,722 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 12 transitions, 51 flow [2021-03-26 13:15:36,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:36,723 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:36,723 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:36,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 13:15:36,723 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:36,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:36,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1085119695, now seen corresponding path program 1 times [2021-03-26 13:15:36,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:36,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691644052] [2021-03-26 13:15:36,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:36,733 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:36,735 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:36,737 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:36,737 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:36,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 13:15:36,737 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:36,737 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-03-26 13:15:36,770 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:36,771 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:36,772 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:36,772 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:36,772 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:36,772 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:36,772 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:36,772 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:36,773 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:36,773 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:36,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 23 transitions, 106 flow [2021-03-26 13:15:36,782 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-03-26 13:15:36,783 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-26 13:15:36,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 23 transitions, 106 flow [2021-03-26 13:15:36,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 21 transitions, 102 flow [2021-03-26 13:15:36,788 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:36,789 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 21 transitions, 102 flow [2021-03-26 13:15:36,789 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 21 transitions, 102 flow [2021-03-26 13:15:36,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 21 transitions, 102 flow [2021-03-26 13:15:36,799 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-03-26 13:15:36,799 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:36,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 27 events. 0/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 59 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-26 13:15:36,801 INFO L142 LiptonReduction]: Number of co-enabled transitions 228 [2021-03-26 13:15:37,084 INFO L154 LiptonReduction]: Checked pairs total: 87 [2021-03-26 13:15:37,084 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 13:15:37,085 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 297 [2021-03-26 13:15:37,086 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:37,087 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,087 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:37,087 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:37,087 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:37,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:37,087 INFO L82 PathProgramCache]: Analyzing trace with hash 4515, now seen corresponding path program 1 times [2021-03-26 13:15:37,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:37,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249791571] [2021-03-26 13:15:37,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:37,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:37,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:37,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249791571] [2021-03-26 13:15:37,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:37,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:37,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304379686] [2021-03-26 13:15:37,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:37,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:37,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:37,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:37,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 29 [2021-03-26 13:15:37,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 15 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:37,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 29 [2021-03-26 13:15:37,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:37,117 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-03-26 13:15:37,117 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 14 events. 0/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 7/21 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-26 13:15:37,118 INFO L132 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2021-03-26 13:15:37,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 14 transitions, 90 flow [2021-03-26 13:15:37,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:37,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:37,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2021-03-26 13:15:37,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9195402298850575 [2021-03-26 13:15:37,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 80 transitions. [2021-03-26 13:15:37,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 80 transitions. [2021-03-26 13:15:37,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:37,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 80 transitions. [2021-03-26 13:15:37,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,128 INFO L185 Difference]: Start difference. First operand has 28 places, 15 transitions, 90 flow. Second operand 3 states and 80 transitions. [2021-03-26 13:15:37,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 14 transitions, 90 flow [2021-03-26 13:15:37,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 14 transitions, 60 flow, removed 15 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:37,132 INFO L241 Difference]: Finished difference. Result has 29 places, 14 transitions, 60 flow [2021-03-26 13:15:37,132 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=29, PETRI_TRANSITIONS=14} [2021-03-26 13:15:37,132 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2021-03-26 13:15:37,132 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:37,132 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 14 transitions, 60 flow [2021-03-26 13:15:37,133 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 14 transitions, 60 flow [2021-03-26 13:15:37,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 14 transitions, 60 flow [2021-03-26 13:15:37,138 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-03-26 13:15:37,139 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 14 events. 0/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-26 13:15:37,139 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 13:15:37,140 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:37,140 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:37,140 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 13:15:37,141 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 14 transitions, 60 flow [2021-03-26 13:15:37,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,141 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:37,141 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:37,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 13:15:37,141 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:37,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1719135375, now seen corresponding path program 1 times [2021-03-26 13:15:37,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:37,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330268379] [2021-03-26 13:15:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:37,154 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:37,157 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:37,159 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:37,159 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:37,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 13:15:37,165 WARN L342 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:37,166 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-03-26 13:15:37,179 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:37,179 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:37,180 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:37,180 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:37,180 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:37,180 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:37,180 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:37,181 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:37,181 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:37,181 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:37,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 26 transitions, 129 flow [2021-03-26 13:15:37,186 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-03-26 13:15:37,186 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 47 events. 0/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 166 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-26 13:15:37,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 26 transitions, 129 flow [2021-03-26 13:15:37,187 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 24 transitions, 125 flow [2021-03-26 13:15:37,187 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:37,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 24 transitions, 125 flow [2021-03-26 13:15:37,187 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 24 transitions, 125 flow [2021-03-26 13:15:37,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 24 transitions, 125 flow [2021-03-26 13:15:37,191 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-03-26 13:15:37,191 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-26 13:15:37,191 INFO L142 LiptonReduction]: Number of co-enabled transitions 308 [2021-03-26 13:15:37,373 INFO L154 LiptonReduction]: Checked pairs total: 119 [2021-03-26 13:15:37,373 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 13:15:37,374 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 187 [2021-03-26 13:15:37,379 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:37,379 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:37,380 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:37,380 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:37,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:37,380 INFO L82 PathProgramCache]: Analyzing trace with hash 5539, now seen corresponding path program 1 times [2021-03-26 13:15:37,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:37,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176972932] [2021-03-26 13:15:37,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:37,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:37,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:37,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:37,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176972932] [2021-03-26 13:15:37,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:37,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:37,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014803009] [2021-03-26 13:15:37,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:37,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:37,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:37,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:37,398 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 33 [2021-03-26 13:15:37,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:37,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 33 [2021-03-26 13:15:37,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:37,403 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 13:15:37,403 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 8/24 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-26 13:15:37,404 INFO L132 encePairwiseOnDemand]: 31/33 looper letters, 0 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2021-03-26 13:15:37,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 16 transitions, 111 flow [2021-03-26 13:15:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:37,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2021-03-26 13:15:37,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9292929292929293 [2021-03-26 13:15:37,406 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 92 transitions. [2021-03-26 13:15:37,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 92 transitions. [2021-03-26 13:15:37,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:37,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 92 transitions. [2021-03-26 13:15:37,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,410 INFO L185 Difference]: Start difference. First operand has 32 places, 17 transitions, 111 flow. Second operand 3 states and 92 transitions. [2021-03-26 13:15:37,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 16 transitions, 111 flow [2021-03-26 13:15:37,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 16 transitions, 69 flow, removed 21 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:37,413 INFO L241 Difference]: Finished difference. Result has 33 places, 16 transitions, 69 flow [2021-03-26 13:15:37,413 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2021-03-26 13:15:37,414 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2021-03-26 13:15:37,414 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:37,414 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 16 transitions, 69 flow [2021-03-26 13:15:37,414 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 16 transitions, 69 flow [2021-03-26 13:15:37,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 16 transitions, 69 flow [2021-03-26 13:15:37,418 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 13:15:37,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-26 13:15:37,419 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 13:15:37,420 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:37,420 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:37,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 13:15:37,422 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 69 flow [2021-03-26 13:15:37,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:37,422 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:37,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 13:15:37,422 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:37,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:37,423 INFO L82 PathProgramCache]: Analyzing trace with hash 779611434, now seen corresponding path program 1 times [2021-03-26 13:15:37,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:37,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853701513] [2021-03-26 13:15:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:37,442 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:37,457 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:37,459 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:37,459 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:37,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 13:15:37,460 WARN L342 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:37,460 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-03-26 13:15:37,487 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:37,488 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:37,489 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:37,489 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:37,489 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:37,489 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:37,489 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:37,489 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:37,489 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:37,489 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:37,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 29 transitions, 154 flow [2021-03-26 13:15:37,494 INFO L129 PetriNetUnfolder]: 0/53 cut-off events. [2021-03-26 13:15:37,495 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 191 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-26 13:15:37,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 29 transitions, 154 flow [2021-03-26 13:15:37,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 27 transitions, 150 flow [2021-03-26 13:15:37,499 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:37,499 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 27 transitions, 150 flow [2021-03-26 13:15:37,500 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 27 transitions, 150 flow [2021-03-26 13:15:37,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 27 transitions, 150 flow [2021-03-26 13:15:37,503 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-26 13:15:37,503 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-26 13:15:37,504 INFO L142 LiptonReduction]: Number of co-enabled transitions 400 [2021-03-26 13:15:37,778 INFO L154 LiptonReduction]: Checked pairs total: 156 [2021-03-26 13:15:37,778 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 13:15:37,778 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 279 [2021-03-26 13:15:37,779 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:37,779 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,779 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:37,779 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:37,780 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:37,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:37,780 INFO L82 PathProgramCache]: Analyzing trace with hash 6691, now seen corresponding path program 1 times [2021-03-26 13:15:37,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:37,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768778829] [2021-03-26 13:15:37,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:37,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:37,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:37,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768778829] [2021-03-26 13:15:37,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:37,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:37,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876523450] [2021-03-26 13:15:37,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:37,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:37,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:37,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:37,790 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 37 [2021-03-26 13:15:37,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 19 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:37,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 37 [2021-03-26 13:15:37,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:37,794 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 13:15:37,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 9/27 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-26 13:15:37,794 INFO L132 encePairwiseOnDemand]: 35/37 looper letters, 0 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2021-03-26 13:15:37,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 18 transitions, 134 flow [2021-03-26 13:15:37,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:37,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2021-03-26 13:15:37,795 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9369369369369369 [2021-03-26 13:15:37,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 104 transitions. [2021-03-26 13:15:37,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 104 transitions. [2021-03-26 13:15:37,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:37,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 104 transitions. [2021-03-26 13:15:37,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,796 INFO L185 Difference]: Start difference. First operand has 36 places, 19 transitions, 134 flow. Second operand 3 states and 104 transitions. [2021-03-26 13:15:37,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 18 transitions, 134 flow [2021-03-26 13:15:37,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 18 transitions, 78 flow, removed 28 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:37,798 INFO L241 Difference]: Finished difference. Result has 37 places, 18 transitions, 78 flow [2021-03-26 13:15:37,798 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=37, PETRI_TRANSITIONS=18} [2021-03-26 13:15:37,799 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2021-03-26 13:15:37,799 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:37,799 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 18 transitions, 78 flow [2021-03-26 13:15:37,799 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 18 transitions, 78 flow [2021-03-26 13:15:37,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 18 transitions, 78 flow [2021-03-26 13:15:37,801 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 13:15:37,801 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-26 13:15:37,802 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-26 13:15:37,803 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:37,803 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:37,803 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-26 13:15:37,804 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 78 flow [2021-03-26 13:15:37,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:37,804 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:37,804 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:37,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 13:15:37,804 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:37,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:37,805 INFO L82 PathProgramCache]: Analyzing trace with hash -2053304524, now seen corresponding path program 1 times [2021-03-26 13:15:37,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:37,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863123617] [2021-03-26 13:15:37,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:37,809 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:37,812 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:37,813 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:37,814 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:37,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 13:15:37,814 WARN L342 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:37,814 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2021-03-26 13:15:37,829 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:37,829 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:37,833 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:37,834 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:37,834 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:37,834 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:37,834 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:37,834 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:37,834 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:37,834 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:37,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 32 transitions, 181 flow [2021-03-26 13:15:37,853 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-03-26 13:15:37,853 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 212 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2021-03-26 13:15:37,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 32 transitions, 181 flow [2021-03-26 13:15:37,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 30 transitions, 177 flow [2021-03-26 13:15:37,854 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:37,854 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 30 transitions, 177 flow [2021-03-26 13:15:37,857 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 30 transitions, 177 flow [2021-03-26 13:15:37,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 30 transitions, 177 flow [2021-03-26 13:15:37,866 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-03-26 13:15:37,867 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:37,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2021-03-26 13:15:37,874 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-26 13:15:38,089 INFO L154 LiptonReduction]: Checked pairs total: 198 [2021-03-26 13:15:38,089 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-26 13:15:38,090 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 236 [2021-03-26 13:15:38,094 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:38,094 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,094 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:38,094 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:38,095 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:38,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:38,095 INFO L82 PathProgramCache]: Analyzing trace with hash 7971, now seen corresponding path program 1 times [2021-03-26 13:15:38,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:38,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994550027] [2021-03-26 13:15:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:38,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:38,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:38,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994550027] [2021-03-26 13:15:38,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:38,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:38,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846295870] [2021-03-26 13:15:38,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:38,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:38,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:38,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:38,143 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 41 [2021-03-26 13:15:38,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 21 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:38,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 41 [2021-03-26 13:15:38,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:38,146 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 13:15:38,146 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 10/30 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2021-03-26 13:15:38,147 INFO L132 encePairwiseOnDemand]: 39/41 looper letters, 0 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2021-03-26 13:15:38,147 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 20 transitions, 159 flow [2021-03-26 13:15:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:38,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:38,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2021-03-26 13:15:38,149 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.943089430894309 [2021-03-26 13:15:38,149 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 116 transitions. [2021-03-26 13:15:38,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 116 transitions. [2021-03-26 13:15:38,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:38,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 116 transitions. [2021-03-26 13:15:38,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,151 INFO L185 Difference]: Start difference. First operand has 40 places, 21 transitions, 159 flow. Second operand 3 states and 116 transitions. [2021-03-26 13:15:38,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 20 transitions, 159 flow [2021-03-26 13:15:38,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 20 transitions, 87 flow, removed 36 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:38,162 INFO L241 Difference]: Finished difference. Result has 41 places, 20 transitions, 87 flow [2021-03-26 13:15:38,162 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2021-03-26 13:15:38,162 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2021-03-26 13:15:38,162 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:38,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 20 transitions, 87 flow [2021-03-26 13:15:38,163 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 20 transitions, 87 flow [2021-03-26 13:15:38,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 20 transitions, 87 flow [2021-03-26 13:15:38,165 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 13:15:38,166 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2021-03-26 13:15:38,166 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-26 13:15:38,167 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:38,167 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:38,167 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 13:15:38,168 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 87 flow [2021-03-26 13:15:38,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:38,169 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:38,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 13:15:38,169 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:38,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:38,169 INFO L82 PathProgramCache]: Analyzing trace with hash -607272555, now seen corresponding path program 1 times [2021-03-26 13:15:38,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:38,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651918306] [2021-03-26 13:15:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:38,187 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:38,190 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:38,195 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:38,196 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:38,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 13:15:38,196 WARN L342 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:38,197 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2021-03-26 13:15:38,212 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:38,213 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:38,213 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:38,213 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:38,213 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:38,213 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:38,214 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:38,214 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:38,214 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:38,214 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:38,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 35 transitions, 210 flow [2021-03-26 13:15:38,221 INFO L129 PetriNetUnfolder]: 0/65 cut-off events. [2021-03-26 13:15:38,222 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 65 events. 0/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 234 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-03-26 13:15:38,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 35 transitions, 210 flow [2021-03-26 13:15:38,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 33 transitions, 206 flow [2021-03-26 13:15:38,222 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:38,223 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 33 transitions, 206 flow [2021-03-26 13:15:38,223 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 33 transitions, 206 flow [2021-03-26 13:15:38,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 33 transitions, 206 flow [2021-03-26 13:15:38,228 INFO L129 PetriNetUnfolder]: 0/43 cut-off events. [2021-03-26 13:15:38,228 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 43 events. 0/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 110 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-03-26 13:15:38,229 INFO L142 LiptonReduction]: Number of co-enabled transitions 620 [2021-03-26 13:15:38,474 INFO L154 LiptonReduction]: Checked pairs total: 245 [2021-03-26 13:15:38,474 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 13:15:38,475 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 253 [2021-03-26 13:15:38,476 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:38,476 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,476 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:38,476 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:38,476 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:38,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:38,477 INFO L82 PathProgramCache]: Analyzing trace with hash 9379, now seen corresponding path program 1 times [2021-03-26 13:15:38,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:38,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486616019] [2021-03-26 13:15:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:38,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:38,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:38,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486616019] [2021-03-26 13:15:38,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:38,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:38,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136885252] [2021-03-26 13:15:38,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:38,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:38,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:38,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:38,491 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 45 [2021-03-26 13:15:38,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 23 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:38,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 45 [2021-03-26 13:15:38,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:38,504 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-26 13:15:38,504 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 11/33 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-03-26 13:15:38,504 INFO L132 encePairwiseOnDemand]: 43/45 looper letters, 0 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2021-03-26 13:15:38,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 22 transitions, 186 flow [2021-03-26 13:15:38,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:38,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2021-03-26 13:15:38,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9481481481481482 [2021-03-26 13:15:38,505 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 128 transitions. [2021-03-26 13:15:38,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 128 transitions. [2021-03-26 13:15:38,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:38,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 128 transitions. [2021-03-26 13:15:38,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,506 INFO L185 Difference]: Start difference. First operand has 44 places, 23 transitions, 186 flow. Second operand 3 states and 128 transitions. [2021-03-26 13:15:38,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 22 transitions, 186 flow [2021-03-26 13:15:38,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 22 transitions, 96 flow, removed 45 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:38,508 INFO L241 Difference]: Finished difference. Result has 45 places, 22 transitions, 96 flow [2021-03-26 13:15:38,508 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=45, PETRI_TRANSITIONS=22} [2021-03-26 13:15:38,508 INFO L343 CegarLoopForPetriNet]: 44 programPoint places, 1 predicate places. [2021-03-26 13:15:38,508 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:38,508 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 22 transitions, 96 flow [2021-03-26 13:15:38,508 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 22 transitions, 96 flow [2021-03-26 13:15:38,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 22 transitions, 96 flow [2021-03-26 13:15:38,510 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-26 13:15:38,510 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-03-26 13:15:38,511 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 13:15:38,512 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:38,512 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:38,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-26 13:15:38,513 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 22 transitions, 96 flow [2021-03-26 13:15:38,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:38,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:38,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:38,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 13:15:38,513 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:38,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:38,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1208304905, now seen corresponding path program 1 times [2021-03-26 13:15:38,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:38,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810035365] [2021-03-26 13:15:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:38,536 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:38,547 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:38,553 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:38,554 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:38,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 13:15:38,555 WARN L342 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:38,555 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2021-03-26 13:15:38,692 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:38,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:38,693 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:38,693 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:38,693 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:38,693 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:38,693 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:38,693 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:38,693 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:38,693 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:38,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 38 transitions, 241 flow [2021-03-26 13:15:38,698 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-03-26 13:15:38,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 257 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2021-03-26 13:15:38,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 38 transitions, 241 flow [2021-03-26 13:15:38,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 36 transitions, 237 flow [2021-03-26 13:15:38,699 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:38,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 36 transitions, 237 flow [2021-03-26 13:15:38,700 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 36 transitions, 237 flow [2021-03-26 13:15:38,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 36 transitions, 237 flow [2021-03-26 13:15:38,703 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-03-26 13:15:38,719 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:38,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 47 events. 0/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2021-03-26 13:15:38,721 INFO L142 LiptonReduction]: Number of co-enabled transitions 748 [2021-03-26 13:15:39,349 INFO L154 LiptonReduction]: Checked pairs total: 297 [2021-03-26 13:15:39,349 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-26 13:15:39,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 650 [2021-03-26 13:15:39,351 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:39,351 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:39,351 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:39,351 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:39,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:39,352 INFO L82 PathProgramCache]: Analyzing trace with hash 10915, now seen corresponding path program 1 times [2021-03-26 13:15:39,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:39,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921222934] [2021-03-26 13:15:39,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:39,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:39,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:39,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:39,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921222934] [2021-03-26 13:15:39,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:39,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:39,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289042240] [2021-03-26 13:15:39,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:39,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:39,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:39,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:39,369 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 49 [2021-03-26 13:15:39,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 25 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:39,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 49 [2021-03-26 13:15:39,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:39,373 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 13:15:39,374 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 12/36 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2021-03-26 13:15:39,374 INFO L132 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2021-03-26 13:15:39,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 24 transitions, 215 flow [2021-03-26 13:15:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2021-03-26 13:15:39,375 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-03-26 13:15:39,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 140 transitions. [2021-03-26 13:15:39,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 140 transitions. [2021-03-26 13:15:39,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:39,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 140 transitions. [2021-03-26 13:15:39,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,376 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,377 INFO L185 Difference]: Start difference. First operand has 48 places, 25 transitions, 215 flow. Second operand 3 states and 140 transitions. [2021-03-26 13:15:39,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 24 transitions, 215 flow [2021-03-26 13:15:39,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 24 transitions, 105 flow, removed 55 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:39,378 INFO L241 Difference]: Finished difference. Result has 49 places, 24 transitions, 105 flow [2021-03-26 13:15:39,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=49, PETRI_TRANSITIONS=24} [2021-03-26 13:15:39,379 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2021-03-26 13:15:39,379 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:39,379 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 24 transitions, 105 flow [2021-03-26 13:15:39,379 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 24 transitions, 105 flow [2021-03-26 13:15:39,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 24 transitions, 105 flow [2021-03-26 13:15:39,384 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 13:15:39,384 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2021-03-26 13:15:39,384 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-26 13:15:39,386 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:39,386 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:39,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 13:15:39,387 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 24 transitions, 105 flow [2021-03-26 13:15:39,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,387 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:39,387 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:39,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 13:15:39,387 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:39,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:39,388 INFO L82 PathProgramCache]: Analyzing trace with hash 941462544, now seen corresponding path program 1 times [2021-03-26 13:15:39,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:39,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673705570] [2021-03-26 13:15:39,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:39,395 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:39,404 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:39,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:39,408 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:39,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 13:15:39,408 WARN L342 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:39,409 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2021-03-26 13:15:39,429 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:39,430 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:39,430 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:39,430 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:39,430 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:39,430 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:39,430 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:39,431 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:39,431 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:39,431 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:39,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 41 transitions, 274 flow [2021-03-26 13:15:39,441 INFO L129 PetriNetUnfolder]: 0/77 cut-off events. [2021-03-26 13:15:39,441 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 77 events. 0/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 294 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-03-26 13:15:39,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 41 transitions, 274 flow [2021-03-26 13:15:39,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 39 transitions, 270 flow [2021-03-26 13:15:39,444 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:39,444 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 39 transitions, 270 flow [2021-03-26 13:15:39,444 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 39 transitions, 270 flow [2021-03-26 13:15:39,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 39 transitions, 270 flow [2021-03-26 13:15:39,448 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-03-26 13:15:39,448 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 153 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-03-26 13:15:39,449 INFO L142 LiptonReduction]: Number of co-enabled transitions 888 [2021-03-26 13:15:39,766 INFO L154 LiptonReduction]: Checked pairs total: 354 [2021-03-26 13:15:39,766 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-26 13:15:39,767 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 323 [2021-03-26 13:15:39,768 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:39,769 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:39,769 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:39,769 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:39,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:39,769 INFO L82 PathProgramCache]: Analyzing trace with hash 12579, now seen corresponding path program 1 times [2021-03-26 13:15:39,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:39,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245533691] [2021-03-26 13:15:39,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:39,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:39,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:39,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:39,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245533691] [2021-03-26 13:15:39,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:39,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:39,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482390389] [2021-03-26 13:15:39,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:39,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:39,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:39,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:39,790 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 53 [2021-03-26 13:15:39,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 27 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:39,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 53 [2021-03-26 13:15:39,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:39,800 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-26 13:15:39,800 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 13/39 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-03-26 13:15:39,801 INFO L132 encePairwiseOnDemand]: 51/53 looper letters, 0 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2021-03-26 13:15:39,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 26 transitions, 246 flow [2021-03-26 13:15:39,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:39,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2021-03-26 13:15:39,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9559748427672956 [2021-03-26 13:15:39,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 152 transitions. [2021-03-26 13:15:39,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 152 transitions. [2021-03-26 13:15:39,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:39,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 152 transitions. [2021-03-26 13:15:39,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,803 INFO L185 Difference]: Start difference. First operand has 52 places, 27 transitions, 246 flow. Second operand 3 states and 152 transitions. [2021-03-26 13:15:39,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 26 transitions, 246 flow [2021-03-26 13:15:39,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 26 transitions, 114 flow, removed 66 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:39,806 INFO L241 Difference]: Finished difference. Result has 53 places, 26 transitions, 114 flow [2021-03-26 13:15:39,807 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=53, PETRI_TRANSITIONS=26} [2021-03-26 13:15:39,807 INFO L343 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2021-03-26 13:15:39,807 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:39,807 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 26 transitions, 114 flow [2021-03-26 13:15:39,807 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 26 transitions, 114 flow [2021-03-26 13:15:39,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 26 transitions, 114 flow [2021-03-26 13:15:39,810 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-26 13:15:39,811 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-03-26 13:15:39,811 INFO L142 LiptonReduction]: Number of co-enabled transitions 288 [2021-03-26 13:15:39,813 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:39,813 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:39,813 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 13:15:39,813 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 26 transitions, 114 flow [2021-03-26 13:15:39,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:39,814 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:39,814 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:39,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 13:15:39,814 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:39,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:39,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1127292090, now seen corresponding path program 1 times [2021-03-26 13:15:39,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:39,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811334708] [2021-03-26 13:15:39,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:39,828 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:39,830 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:39,832 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:39,833 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:39,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-26 13:15:39,833 WARN L342 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:39,833 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2021-03-26 13:15:39,855 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:39,855 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:39,856 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:39,856 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:39,856 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:39,856 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:39,856 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:39,856 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:39,856 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:39,856 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:39,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 44 transitions, 309 flow [2021-03-26 13:15:39,864 INFO L129 PetriNetUnfolder]: 0/83 cut-off events. [2021-03-26 13:15:39,864 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 83 events. 0/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 304 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2021-03-26 13:15:39,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 44 transitions, 309 flow [2021-03-26 13:15:39,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 42 transitions, 305 flow [2021-03-26 13:15:39,865 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:39,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 42 transitions, 305 flow [2021-03-26 13:15:39,865 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 42 transitions, 305 flow [2021-03-26 13:15:39,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 42 transitions, 305 flow [2021-03-26 13:15:39,870 INFO L129 PetriNetUnfolder]: 0/55 cut-off events. [2021-03-26 13:15:39,870 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:39,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 55 events. 0/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 126 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2021-03-26 13:15:39,872 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-26 13:15:40,225 INFO L154 LiptonReduction]: Checked pairs total: 416 [2021-03-26 13:15:40,225 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-26 13:15:40,225 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 360 [2021-03-26 13:15:40,226 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:40,226 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,226 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:40,226 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:40,226 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:40,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:40,227 INFO L82 PathProgramCache]: Analyzing trace with hash 14371, now seen corresponding path program 1 times [2021-03-26 13:15:40,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:40,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445740196] [2021-03-26 13:15:40,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:40,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:40,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:40,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445740196] [2021-03-26 13:15:40,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:40,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:40,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952302102] [2021-03-26 13:15:40,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:40,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:40,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:40,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:40,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 57 [2021-03-26 13:15:40,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 29 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:40,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 57 [2021-03-26 13:15:40,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:40,248 INFO L129 PetriNetUnfolder]: 0/28 cut-off events. [2021-03-26 13:15:40,248 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 14/42 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2021-03-26 13:15:40,249 INFO L132 encePairwiseOnDemand]: 55/57 looper letters, 0 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2021-03-26 13:15:40,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 28 transitions, 279 flow [2021-03-26 13:15:40,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:40,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 164 transitions. [2021-03-26 13:15:40,250 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9590643274853801 [2021-03-26 13:15:40,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 164 transitions. [2021-03-26 13:15:40,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 164 transitions. [2021-03-26 13:15:40,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:40,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 164 transitions. [2021-03-26 13:15:40,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,252 INFO L185 Difference]: Start difference. First operand has 56 places, 29 transitions, 279 flow. Second operand 3 states and 164 transitions. [2021-03-26 13:15:40,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 28 transitions, 279 flow [2021-03-26 13:15:40,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 28 transitions, 123 flow, removed 78 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:40,256 INFO L241 Difference]: Finished difference. Result has 57 places, 28 transitions, 123 flow [2021-03-26 13:15:40,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=57, PETRI_TRANSITIONS=28} [2021-03-26 13:15:40,257 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2021-03-26 13:15:40,257 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:40,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 28 transitions, 123 flow [2021-03-26 13:15:40,258 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 28 transitions, 123 flow [2021-03-26 13:15:40,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 28 transitions, 123 flow [2021-03-26 13:15:40,262 INFO L129 PetriNetUnfolder]: 0/28 cut-off events. [2021-03-26 13:15:40,262 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2021-03-26 13:15:40,262 INFO L142 LiptonReduction]: Number of co-enabled transitions 338 [2021-03-26 13:15:40,264 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:40,264 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:40,264 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 13:15:40,265 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 28 transitions, 123 flow [2021-03-26 13:15:40,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,265 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:40,266 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:40,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-26 13:15:40,266 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:40,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1451810459, now seen corresponding path program 1 times [2021-03-26 13:15:40,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:40,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322953213] [2021-03-26 13:15:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:40,272 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:40,283 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:40,286 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:40,286 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:40,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-26 13:15:40,287 WARN L342 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:40,287 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2021-03-26 13:15:40,310 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:40,311 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:40,311 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:40,311 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:40,311 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:40,311 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:40,311 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:40,311 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:40,312 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:40,312 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:40,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 47 transitions, 346 flow [2021-03-26 13:15:40,319 INFO L129 PetriNetUnfolder]: 0/89 cut-off events. [2021-03-26 13:15:40,319 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 89 events. 0/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 346 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2021-03-26 13:15:40,319 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 47 transitions, 346 flow [2021-03-26 13:15:40,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 45 transitions, 342 flow [2021-03-26 13:15:40,320 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:40,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 45 transitions, 342 flow [2021-03-26 13:15:40,320 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 45 transitions, 342 flow [2021-03-26 13:15:40,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 45 transitions, 342 flow [2021-03-26 13:15:40,325 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-03-26 13:15:40,325 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 167 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2021-03-26 13:15:40,326 INFO L142 LiptonReduction]: Number of co-enabled transitions 1204 [2021-03-26 13:15:40,695 INFO L154 LiptonReduction]: Checked pairs total: 483 [2021-03-26 13:15:40,695 INFO L156 LiptonReduction]: Total number of compositions: 14 [2021-03-26 13:15:40,695 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 375 [2021-03-26 13:15:40,696 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:40,696 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,696 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:40,696 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:40,697 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:40,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:40,697 INFO L82 PathProgramCache]: Analyzing trace with hash 16291, now seen corresponding path program 1 times [2021-03-26 13:15:40,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:40,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342567955] [2021-03-26 13:15:40,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:40,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:40,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:40,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:40,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342567955] [2021-03-26 13:15:40,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:40,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:40,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41736974] [2021-03-26 13:15:40,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:40,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:40,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:40,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:40,705 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 61 [2021-03-26 13:15:40,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 31 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:40,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 61 [2021-03-26 13:15:40,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:40,710 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-26 13:15:40,710 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 15/45 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2021-03-26 13:15:40,710 INFO L132 encePairwiseOnDemand]: 59/61 looper letters, 0 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2021-03-26 13:15:40,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 30 transitions, 314 flow [2021-03-26 13:15:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:40,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:40,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2021-03-26 13:15:40,711 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9617486338797814 [2021-03-26 13:15:40,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2021-03-26 13:15:40,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2021-03-26 13:15:40,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:40,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2021-03-26 13:15:40,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,713 INFO L185 Difference]: Start difference. First operand has 60 places, 31 transitions, 314 flow. Second operand 3 states and 176 transitions. [2021-03-26 13:15:40,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 30 transitions, 314 flow [2021-03-26 13:15:40,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 30 transitions, 132 flow, removed 91 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:40,715 INFO L241 Difference]: Finished difference. Result has 61 places, 30 transitions, 132 flow [2021-03-26 13:15:40,716 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=61, PETRI_TRANSITIONS=30} [2021-03-26 13:15:40,716 INFO L343 CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places. [2021-03-26 13:15:40,716 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:40,716 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 30 transitions, 132 flow [2021-03-26 13:15:40,716 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 30 transitions, 132 flow [2021-03-26 13:15:40,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 30 transitions, 132 flow [2021-03-26 13:15:40,719 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-26 13:15:40,719 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2021-03-26 13:15:40,719 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-26 13:15:40,721 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:40,721 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:40,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 13:15:40,722 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 30 transitions, 132 flow [2021-03-26 13:15:40,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:40,722 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:40,722 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:40,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-26 13:15:40,722 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:40,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:40,723 INFO L82 PathProgramCache]: Analyzing trace with hash -138593667, now seen corresponding path program 1 times [2021-03-26 13:15:40,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:40,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342534033] [2021-03-26 13:15:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:40,727 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:40,728 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:40,730 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:40,731 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:40,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-26 13:15:40,731 WARN L342 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:40,731 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2021-03-26 13:15:40,746 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:40,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:40,747 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:40,747 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:40,747 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:40,748 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:40,748 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:40,748 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:40,748 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:40,748 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:40,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 50 transitions, 385 flow [2021-03-26 13:15:40,755 INFO L129 PetriNetUnfolder]: 0/95 cut-off events. [2021-03-26 13:15:40,755 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 95 events. 0/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 296 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2021-03-26 13:15:40,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 50 transitions, 385 flow [2021-03-26 13:15:40,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 48 transitions, 381 flow [2021-03-26 13:15:40,756 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:40,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 48 transitions, 381 flow [2021-03-26 13:15:40,757 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 48 transitions, 381 flow [2021-03-26 13:15:40,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 48 transitions, 381 flow [2021-03-26 13:15:40,762 INFO L129 PetriNetUnfolder]: 0/63 cut-off events. [2021-03-26 13:15:40,762 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:40,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 63 events. 0/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 179 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2021-03-26 13:15:40,763 INFO L142 LiptonReduction]: Number of co-enabled transitions 1380 [2021-03-26 13:15:41,162 INFO L154 LiptonReduction]: Checked pairs total: 555 [2021-03-26 13:15:41,163 INFO L156 LiptonReduction]: Total number of compositions: 15 [2021-03-26 13:15:41,163 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 407 [2021-03-26 13:15:41,164 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:41,164 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,164 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:41,164 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:41,164 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:41,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:41,165 INFO L82 PathProgramCache]: Analyzing trace with hash 18339, now seen corresponding path program 1 times [2021-03-26 13:15:41,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:41,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376787349] [2021-03-26 13:15:41,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:41,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:41,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:41,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376787349] [2021-03-26 13:15:41,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:41,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:41,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019661418] [2021-03-26 13:15:41,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:41,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:41,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:41,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:41,179 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 65 [2021-03-26 13:15:41,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 33 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:41,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 65 [2021-03-26 13:15:41,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:41,188 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-26 13:15:41,188 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 16/48 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2021-03-26 13:15:41,189 INFO L132 encePairwiseOnDemand]: 63/65 looper letters, 0 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2021-03-26 13:15:41,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 32 transitions, 351 flow [2021-03-26 13:15:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:41,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2021-03-26 13:15:41,189 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9641025641025641 [2021-03-26 13:15:41,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 188 transitions. [2021-03-26 13:15:41,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 188 transitions. [2021-03-26 13:15:41,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:41,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 188 transitions. [2021-03-26 13:15:41,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,191 INFO L185 Difference]: Start difference. First operand has 64 places, 33 transitions, 351 flow. Second operand 3 states and 188 transitions. [2021-03-26 13:15:41,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 32 transitions, 351 flow [2021-03-26 13:15:41,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 32 transitions, 141 flow, removed 105 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:41,196 INFO L241 Difference]: Finished difference. Result has 65 places, 32 transitions, 141 flow [2021-03-26 13:15:41,196 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=65, PETRI_TRANSITIONS=32} [2021-03-26 13:15:41,197 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2021-03-26 13:15:41,197 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:41,197 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 32 transitions, 141 flow [2021-03-26 13:15:41,197 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 32 transitions, 141 flow [2021-03-26 13:15:41,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 32 transitions, 141 flow [2021-03-26 13:15:41,202 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-26 13:15:41,202 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2021-03-26 13:15:41,202 INFO L142 LiptonReduction]: Number of co-enabled transitions 450 [2021-03-26 13:15:41,204 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:41,204 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:41,204 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 13:15:41,205 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 32 transitions, 141 flow [2021-03-26 13:15:41,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,206 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:41,206 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:41,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-26 13:15:41,206 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:41,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:41,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1465640138, now seen corresponding path program 1 times [2021-03-26 13:15:41,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:41,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167776242] [2021-03-26 13:15:41,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:41,215 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:41,223 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:41,227 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:41,227 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:41,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-26 13:15:41,228 WARN L342 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:41,228 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2021-03-26 13:15:41,246 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:41,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:41,248 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:41,248 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:41,248 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:41,248 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:41,248 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:41,248 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:41,248 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:41,248 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:41,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 53 transitions, 426 flow [2021-03-26 13:15:41,256 INFO L129 PetriNetUnfolder]: 0/101 cut-off events. [2021-03-26 13:15:41,256 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 329 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-03-26 13:15:41,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 53 transitions, 426 flow [2021-03-26 13:15:41,257 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 51 transitions, 422 flow [2021-03-26 13:15:41,257 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:41,257 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 51 transitions, 422 flow [2021-03-26 13:15:41,257 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 51 transitions, 422 flow [2021-03-26 13:15:41,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 51 transitions, 422 flow [2021-03-26 13:15:41,262 INFO L129 PetriNetUnfolder]: 0/67 cut-off events. [2021-03-26 13:15:41,263 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 67 events. 0/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 175 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-03-26 13:15:41,264 INFO L142 LiptonReduction]: Number of co-enabled transitions 1568 [2021-03-26 13:15:41,705 INFO L154 LiptonReduction]: Checked pairs total: 632 [2021-03-26 13:15:41,705 INFO L156 LiptonReduction]: Total number of compositions: 16 [2021-03-26 13:15:41,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 449 [2021-03-26 13:15:41,707 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:41,707 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,707 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:41,707 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:41,707 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:41,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:41,707 INFO L82 PathProgramCache]: Analyzing trace with hash 20515, now seen corresponding path program 1 times [2021-03-26 13:15:41,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:41,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55351708] [2021-03-26 13:15:41,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:41,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:41,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:41,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55351708] [2021-03-26 13:15:41,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:41,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:41,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776114140] [2021-03-26 13:15:41,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:41,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:41,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:41,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:41,719 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 69 [2021-03-26 13:15:41,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 35 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:41,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 69 [2021-03-26 13:15:41,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:41,724 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-26 13:15:41,724 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 17/51 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-03-26 13:15:41,724 INFO L132 encePairwiseOnDemand]: 67/69 looper letters, 0 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2021-03-26 13:15:41,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 34 transitions, 390 flow [2021-03-26 13:15:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:41,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:41,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2021-03-26 13:15:41,725 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.966183574879227 [2021-03-26 13:15:41,725 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2021-03-26 13:15:41,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2021-03-26 13:15:41,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:41,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2021-03-26 13:15:41,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,727 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,727 INFO L185 Difference]: Start difference. First operand has 68 places, 35 transitions, 390 flow. Second operand 3 states and 200 transitions. [2021-03-26 13:15:41,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 34 transitions, 390 flow [2021-03-26 13:15:41,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 34 transitions, 150 flow, removed 120 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:41,730 INFO L241 Difference]: Finished difference. Result has 69 places, 34 transitions, 150 flow [2021-03-26 13:15:41,730 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=69, PETRI_TRANSITIONS=34} [2021-03-26 13:15:41,730 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 1 predicate places. [2021-03-26 13:15:41,730 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:41,730 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 34 transitions, 150 flow [2021-03-26 13:15:41,731 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 34 transitions, 150 flow [2021-03-26 13:15:41,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 34 transitions, 150 flow [2021-03-26 13:15:41,734 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-26 13:15:41,734 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-03-26 13:15:41,734 INFO L142 LiptonReduction]: Number of co-enabled transitions 512 [2021-03-26 13:15:41,736 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:41,736 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:41,737 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 13:15:41,737 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 34 transitions, 150 flow [2021-03-26 13:15:41,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:41,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:41,737 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:41,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-26 13:15:41,738 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:41,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:41,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1833507392, now seen corresponding path program 1 times [2021-03-26 13:15:41,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:41,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201860402] [2021-03-26 13:15:41,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:41,741 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:41,743 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:41,748 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:41,750 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:41,750 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-26 13:15:41,750 WARN L342 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:41,751 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2021-03-26 13:15:41,768 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:41,768 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:41,769 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:41,769 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:41,769 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:41,769 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:41,769 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:41,769 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:41,769 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:41,769 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:41,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 56 transitions, 469 flow [2021-03-26 13:15:41,777 INFO L129 PetriNetUnfolder]: 0/107 cut-off events. [2021-03-26 13:15:41,778 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 107 events. 0/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 345 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2021-03-26 13:15:41,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 56 transitions, 469 flow [2021-03-26 13:15:41,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 54 transitions, 465 flow [2021-03-26 13:15:41,779 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:41,779 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 54 transitions, 465 flow [2021-03-26 13:15:41,779 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 54 transitions, 465 flow [2021-03-26 13:15:41,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 54 transitions, 465 flow [2021-03-26 13:15:41,786 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-03-26 13:15:41,786 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:41,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 185 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2021-03-26 13:15:41,806 INFO L142 LiptonReduction]: Number of co-enabled transitions 1768 [2021-03-26 13:15:42,313 INFO L154 LiptonReduction]: Checked pairs total: 714 [2021-03-26 13:15:42,313 INFO L156 LiptonReduction]: Total number of compositions: 17 [2021-03-26 13:15:42,313 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 534 [2021-03-26 13:15:42,314 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:42,314 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:42,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:42,314 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:42,314 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:42,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:42,315 INFO L82 PathProgramCache]: Analyzing trace with hash 22819, now seen corresponding path program 1 times [2021-03-26 13:15:42,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:42,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3389445] [2021-03-26 13:15:42,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:42,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:42,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:42,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3389445] [2021-03-26 13:15:42,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:42,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:42,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701146938] [2021-03-26 13:15:42,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:42,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:42,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:42,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:42,323 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 73 [2021-03-26 13:15:42,323 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 37 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:42,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:42,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 73 [2021-03-26 13:15:42,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:42,328 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-03-26 13:15:42,329 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:42,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 18/54 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2021-03-26 13:15:42,329 INFO L132 encePairwiseOnDemand]: 71/73 looper letters, 0 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2021-03-26 13:15:42,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 36 transitions, 431 flow [2021-03-26 13:15:42,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:42,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:42,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2021-03-26 13:15:42,330 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9680365296803652 [2021-03-26 13:15:42,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 212 transitions. [2021-03-26 13:15:42,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 212 transitions. [2021-03-26 13:15:42,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:42,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 212 transitions. [2021-03-26 13:15:42,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:42,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:42,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:42,331 INFO L185 Difference]: Start difference. First operand has 72 places, 37 transitions, 431 flow. Second operand 3 states and 212 transitions. [2021-03-26 13:15:42,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 36 transitions, 431 flow [2021-03-26 13:15:42,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 36 transitions, 159 flow, removed 136 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:42,334 INFO L241 Difference]: Finished difference. Result has 73 places, 36 transitions, 159 flow [2021-03-26 13:15:42,335 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=73, PETRI_TRANSITIONS=36} [2021-03-26 13:15:42,335 INFO L343 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2021-03-26 13:15:42,335 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:42,335 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 36 transitions, 159 flow [2021-03-26 13:15:42,335 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 36 transitions, 159 flow [2021-03-26 13:15:42,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 36 transitions, 159 flow [2021-03-26 13:15:42,338 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-03-26 13:15:42,339 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:42,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2021-03-26 13:15:42,339 INFO L142 LiptonReduction]: Number of co-enabled transitions 578 [2021-03-26 13:15:42,342 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:42,342 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:42,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 13:15:42,342 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 36 transitions, 159 flow [2021-03-26 13:15:42,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:42,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:42,342 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:42,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-26 13:15:42,343 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:42,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:42,343 INFO L82 PathProgramCache]: Analyzing trace with hash 825672673, now seen corresponding path program 1 times [2021-03-26 13:15:42,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:42,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273775584] [2021-03-26 13:15:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:42,347 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:42,348 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:42,351 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:42,351 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:42,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-26 13:15:42,351 WARN L342 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:42,351 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2021-03-26 13:15:42,370 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:42,370 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:42,371 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:42,371 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:42,371 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:42,371 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:42,371 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:42,371 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:42,371 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:42,371 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:42,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 59 transitions, 514 flow [2021-03-26 13:15:42,379 INFO L129 PetriNetUnfolder]: 0/113 cut-off events. [2021-03-26 13:15:42,380 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:42,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 113 events. 0/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 366 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-03-26 13:15:42,380 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 59 transitions, 514 flow [2021-03-26 13:15:42,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 57 transitions, 510 flow [2021-03-26 13:15:42,381 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:42,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 57 transitions, 510 flow [2021-03-26 13:15:42,381 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 57 transitions, 510 flow [2021-03-26 13:15:42,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 57 transitions, 510 flow [2021-03-26 13:15:42,387 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-03-26 13:15:42,387 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:42,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 185 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-03-26 13:15:42,389 INFO L142 LiptonReduction]: Number of co-enabled transitions 1980 [2021-03-26 13:15:43,039 INFO L154 LiptonReduction]: Checked pairs total: 801 [2021-03-26 13:15:43,040 INFO L156 LiptonReduction]: Total number of compositions: 18 [2021-03-26 13:15:43,040 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 659 [2021-03-26 13:15:43,041 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:43,041 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,041 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:43,041 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:43,041 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:43,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:43,041 INFO L82 PathProgramCache]: Analyzing trace with hash 25251, now seen corresponding path program 1 times [2021-03-26 13:15:43,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:43,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872183206] [2021-03-26 13:15:43,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:43,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:43,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:43,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872183206] [2021-03-26 13:15:43,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:43,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:43,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220832045] [2021-03-26 13:15:43,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:43,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:43,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:43,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:43,051 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 77 [2021-03-26 13:15:43,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 39 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:43,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 77 [2021-03-26 13:15:43,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:43,058 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-26 13:15:43,058 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 19/57 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-03-26 13:15:43,058 INFO L132 encePairwiseOnDemand]: 75/77 looper letters, 0 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2021-03-26 13:15:43,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 38 transitions, 474 flow [2021-03-26 13:15:43,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:43,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2021-03-26 13:15:43,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9696969696969697 [2021-03-26 13:15:43,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2021-03-26 13:15:43,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2021-03-26 13:15:43,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:43,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2021-03-26 13:15:43,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,060 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,060 INFO L185 Difference]: Start difference. First operand has 76 places, 39 transitions, 474 flow. Second operand 3 states and 224 transitions. [2021-03-26 13:15:43,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 38 transitions, 474 flow [2021-03-26 13:15:43,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 38 transitions, 168 flow, removed 153 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:43,064 INFO L241 Difference]: Finished difference. Result has 77 places, 38 transitions, 168 flow [2021-03-26 13:15:43,064 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=77, PETRI_TRANSITIONS=38} [2021-03-26 13:15:43,064 INFO L343 CegarLoopForPetriNet]: 76 programPoint places, 1 predicate places. [2021-03-26 13:15:43,064 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:43,064 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 38 transitions, 168 flow [2021-03-26 13:15:43,064 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 38 transitions, 168 flow [2021-03-26 13:15:43,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 38 transitions, 168 flow [2021-03-26 13:15:43,068 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-26 13:15:43,068 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-03-26 13:15:43,068 INFO L142 LiptonReduction]: Number of co-enabled transitions 648 [2021-03-26 13:15:43,071 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:43,071 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:43,071 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 13:15:43,071 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 38 transitions, 168 flow [2021-03-26 13:15:43,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,072 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:43,072 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:43,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-26 13:15:43,072 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:43,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:43,072 INFO L82 PathProgramCache]: Analyzing trace with hash 334217731, now seen corresponding path program 1 times [2021-03-26 13:15:43,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:43,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13171713] [2021-03-26 13:15:43,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:43,077 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:43,080 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:43,083 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:43,083 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:43,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-26 13:15:43,084 WARN L342 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:43,084 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2021-03-26 13:15:43,104 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:43,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:43,105 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:43,105 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:43,105 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:43,105 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:43,105 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:43,105 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:43,105 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:43,105 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:43,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 62 transitions, 561 flow [2021-03-26 13:15:43,113 INFO L129 PetriNetUnfolder]: 0/119 cut-off events. [2021-03-26 13:15:43,113 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 119 events. 0/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 380 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-03-26 13:15:43,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 62 transitions, 561 flow [2021-03-26 13:15:43,114 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 60 transitions, 557 flow [2021-03-26 13:15:43,114 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:43,115 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 60 transitions, 557 flow [2021-03-26 13:15:43,116 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 60 transitions, 557 flow [2021-03-26 13:15:43,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 60 transitions, 557 flow [2021-03-26 13:15:43,122 INFO L129 PetriNetUnfolder]: 0/79 cut-off events. [2021-03-26 13:15:43,122 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 79 events. 0/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 207 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-03-26 13:15:43,124 INFO L142 LiptonReduction]: Number of co-enabled transitions 2204 [2021-03-26 13:15:43,765 INFO L154 LiptonReduction]: Checked pairs total: 893 [2021-03-26 13:15:43,765 INFO L156 LiptonReduction]: Total number of compositions: 19 [2021-03-26 13:15:43,765 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 651 [2021-03-26 13:15:43,766 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:43,766 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,766 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:43,767 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:43,767 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:43,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:43,767 INFO L82 PathProgramCache]: Analyzing trace with hash 27811, now seen corresponding path program 1 times [2021-03-26 13:15:43,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:43,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065062285] [2021-03-26 13:15:43,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:43,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:43,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:43,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065062285] [2021-03-26 13:15:43,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:43,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:43,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630610018] [2021-03-26 13:15:43,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:43,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:43,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:43,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:43,776 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 81 [2021-03-26 13:15:43,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 41 transitions, 519 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:43,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 81 [2021-03-26 13:15:43,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:43,782 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-03-26 13:15:43,782 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 40 events. 0/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 20/60 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-03-26 13:15:43,782 INFO L132 encePairwiseOnDemand]: 79/81 looper letters, 0 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2021-03-26 13:15:43,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 40 transitions, 519 flow [2021-03-26 13:15:43,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:43,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2021-03-26 13:15:43,783 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9711934156378601 [2021-03-26 13:15:43,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 236 transitions. [2021-03-26 13:15:43,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 236 transitions. [2021-03-26 13:15:43,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:43,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 236 transitions. [2021-03-26 13:15:43,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,785 INFO L185 Difference]: Start difference. First operand has 80 places, 41 transitions, 519 flow. Second operand 3 states and 236 transitions. [2021-03-26 13:15:43,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 40 transitions, 519 flow [2021-03-26 13:15:43,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 40 transitions, 177 flow, removed 171 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:43,790 INFO L241 Difference]: Finished difference. Result has 81 places, 40 transitions, 177 flow [2021-03-26 13:15:43,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=81, PETRI_TRANSITIONS=40} [2021-03-26 13:15:43,790 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 1 predicate places. [2021-03-26 13:15:43,790 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:43,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 40 transitions, 177 flow [2021-03-26 13:15:43,790 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 40 transitions, 177 flow [2021-03-26 13:15:43,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 40 transitions, 177 flow [2021-03-26 13:15:43,794 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-03-26 13:15:43,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 40 events. 0/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-03-26 13:15:43,795 INFO L142 LiptonReduction]: Number of co-enabled transitions 722 [2021-03-26 13:15:43,797 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:43,798 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:43,798 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 13:15:43,798 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 40 transitions, 177 flow [2021-03-26 13:15:43,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:43,798 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:43,799 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:43,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-26 13:15:43,799 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:43,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:43,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1359261028, now seen corresponding path program 1 times [2021-03-26 13:15:43,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:43,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293939478] [2021-03-26 13:15:43,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:43,803 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:43,805 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:43,808 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:43,808 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:43,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-26 13:15:43,808 WARN L342 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:43,808 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2021-03-26 13:15:43,851 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:43,851 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:43,852 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:43,852 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:43,852 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:43,852 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:43,852 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:43,852 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:43,852 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:43,852 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:43,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 65 transitions, 610 flow [2021-03-26 13:15:43,864 INFO L129 PetriNetUnfolder]: 0/125 cut-off events. [2021-03-26 13:15:43,864 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 125 events. 0/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 402 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2021-03-26 13:15:43,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 65 transitions, 610 flow [2021-03-26 13:15:43,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 63 transitions, 606 flow [2021-03-26 13:15:43,865 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:43,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 63 transitions, 606 flow [2021-03-26 13:15:43,865 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 63 transitions, 606 flow [2021-03-26 13:15:43,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 63 transitions, 606 flow [2021-03-26 13:15:43,874 INFO L129 PetriNetUnfolder]: 0/83 cut-off events. [2021-03-26 13:15:43,874 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:43,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 83 events. 0/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2021-03-26 13:15:43,877 INFO L142 LiptonReduction]: Number of co-enabled transitions 2440 [2021-03-26 13:15:44,591 INFO L154 LiptonReduction]: Checked pairs total: 990 [2021-03-26 13:15:44,592 INFO L156 LiptonReduction]: Total number of compositions: 20 [2021-03-26 13:15:44,592 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 727 [2021-03-26 13:15:44,593 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:44,593 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:44,593 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:44,593 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:44,593 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:44,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:44,593 INFO L82 PathProgramCache]: Analyzing trace with hash 30499, now seen corresponding path program 1 times [2021-03-26 13:15:44,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:44,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858124418] [2021-03-26 13:15:44,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:44,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:44,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:44,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858124418] [2021-03-26 13:15:44,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:44,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:44,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482178265] [2021-03-26 13:15:44,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:44,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:44,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:44,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:44,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 85 [2021-03-26 13:15:44,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 43 transitions, 566 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:44,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:44,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 85 [2021-03-26 13:15:44,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:44,608 INFO L129 PetriNetUnfolder]: 0/42 cut-off events. [2021-03-26 13:15:44,609 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:44,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 42 events. 0/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 21/63 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2021-03-26 13:15:44,609 INFO L132 encePairwiseOnDemand]: 83/85 looper letters, 0 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2021-03-26 13:15:44,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 42 transitions, 566 flow [2021-03-26 13:15:44,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:44,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2021-03-26 13:15:44,610 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9725490196078431 [2021-03-26 13:15:44,610 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2021-03-26 13:15:44,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2021-03-26 13:15:44,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:44,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2021-03-26 13:15:44,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:44,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:44,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:44,612 INFO L185 Difference]: Start difference. First operand has 84 places, 43 transitions, 566 flow. Second operand 3 states and 248 transitions. [2021-03-26 13:15:44,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 42 transitions, 566 flow [2021-03-26 13:15:44,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 42 transitions, 186 flow, removed 190 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:44,617 INFO L241 Difference]: Finished difference. Result has 85 places, 42 transitions, 186 flow [2021-03-26 13:15:44,618 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=85, PETRI_TRANSITIONS=42} [2021-03-26 13:15:44,618 INFO L343 CegarLoopForPetriNet]: 84 programPoint places, 1 predicate places. [2021-03-26 13:15:44,618 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:44,618 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 42 transitions, 186 flow [2021-03-26 13:15:44,618 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 42 transitions, 186 flow [2021-03-26 13:15:44,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 42 transitions, 186 flow [2021-03-26 13:15:44,622 INFO L129 PetriNetUnfolder]: 0/42 cut-off events. [2021-03-26 13:15:44,622 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:44,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 42 events. 0/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2021-03-26 13:15:44,623 INFO L142 LiptonReduction]: Number of co-enabled transitions 800 [2021-03-26 13:15:44,626 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:44,626 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:44,626 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 13:15:44,626 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 42 transitions, 186 flow [2021-03-26 13:15:44,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:44,627 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:44,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:44,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-26 13:15:44,627 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:44,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:44,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1298741190, now seen corresponding path program 1 times [2021-03-26 13:15:44,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:44,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194448668] [2021-03-26 13:15:44,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:44,631 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:44,633 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:44,636 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:44,636 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:44,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-26 13:15:44,636 WARN L342 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:44,636 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2021-03-26 13:15:44,659 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:44,659 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:44,660 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:44,660 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:44,660 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:44,660 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:44,660 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:44,660 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:44,660 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:44,660 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:44,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 68 transitions, 661 flow [2021-03-26 13:15:44,670 INFO L129 PetriNetUnfolder]: 0/131 cut-off events. [2021-03-26 13:15:44,670 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:44,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 131 events. 0/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 418 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2021-03-26 13:15:44,670 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 68 transitions, 661 flow [2021-03-26 13:15:44,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 66 transitions, 657 flow [2021-03-26 13:15:44,671 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:44,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 66 transitions, 657 flow [2021-03-26 13:15:44,671 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 66 transitions, 657 flow [2021-03-26 13:15:44,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 66 transitions, 657 flow [2021-03-26 13:15:44,678 INFO L129 PetriNetUnfolder]: 0/87 cut-off events. [2021-03-26 13:15:44,679 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:44,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 87 events. 0/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2021-03-26 13:15:44,681 INFO L142 LiptonReduction]: Number of co-enabled transitions 2688 [2021-03-26 13:15:45,429 INFO L154 LiptonReduction]: Checked pairs total: 1092 [2021-03-26 13:15:45,429 INFO L156 LiptonReduction]: Total number of compositions: 21 [2021-03-26 13:15:45,429 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 758 [2021-03-26 13:15:45,430 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:45,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:45,430 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:45,430 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:45,430 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:45,431 INFO L82 PathProgramCache]: Analyzing trace with hash 33315, now seen corresponding path program 1 times [2021-03-26 13:15:45,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:45,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224160978] [2021-03-26 13:15:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:45,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:45,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:45,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224160978] [2021-03-26 13:15:45,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:45,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:45,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077801037] [2021-03-26 13:15:45,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:45,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:45,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:45,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:45,441 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 89 [2021-03-26 13:15:45,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 45 transitions, 615 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:45,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:45,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 89 [2021-03-26 13:15:45,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:45,449 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2021-03-26 13:15:45,449 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:45,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 22/66 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2021-03-26 13:15:45,450 INFO L132 encePairwiseOnDemand]: 87/89 looper letters, 0 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2021-03-26 13:15:45,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 44 transitions, 615 flow [2021-03-26 13:15:45,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:45,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:45,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2021-03-26 13:15:45,451 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9737827715355806 [2021-03-26 13:15:45,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2021-03-26 13:15:45,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2021-03-26 13:15:45,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:45,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2021-03-26 13:15:45,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:45,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:45,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:45,457 INFO L185 Difference]: Start difference. First operand has 88 places, 45 transitions, 615 flow. Second operand 3 states and 260 transitions. [2021-03-26 13:15:45,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 44 transitions, 615 flow [2021-03-26 13:15:45,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 44 transitions, 195 flow, removed 210 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:45,463 INFO L241 Difference]: Finished difference. Result has 89 places, 44 transitions, 195 flow [2021-03-26 13:15:45,463 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=89, PETRI_TRANSITIONS=44} [2021-03-26 13:15:45,463 INFO L343 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2021-03-26 13:15:45,463 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:45,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 44 transitions, 195 flow [2021-03-26 13:15:45,464 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 44 transitions, 195 flow [2021-03-26 13:15:45,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 44 transitions, 195 flow [2021-03-26 13:15:45,467 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2021-03-26 13:15:45,467 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:45,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2021-03-26 13:15:45,468 INFO L142 LiptonReduction]: Number of co-enabled transitions 882 [2021-03-26 13:15:45,471 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:45,471 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:45,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 13:15:45,472 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 44 transitions, 195 flow [2021-03-26 13:15:45,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:45,472 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:45,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:45,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-26 13:15:45,473 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:45,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:45,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1084276377, now seen corresponding path program 1 times [2021-03-26 13:15:45,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:45,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151803441] [2021-03-26 13:15:45,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:45,482 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:45,484 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:45,492 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:45,492 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:45,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-26 13:15:45,492 WARN L342 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:45,493 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2021-03-26 13:15:45,521 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:45,522 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:45,522 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:45,523 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:45,523 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:45,523 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:45,523 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:45,523 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:45,523 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:45,523 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:45,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 71 transitions, 714 flow [2021-03-26 13:15:45,533 INFO L129 PetriNetUnfolder]: 0/137 cut-off events. [2021-03-26 13:15:45,533 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:45,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 137 events. 0/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 447 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2021-03-26 13:15:45,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 71 transitions, 714 flow [2021-03-26 13:15:45,534 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 69 transitions, 710 flow [2021-03-26 13:15:45,534 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:45,536 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 69 transitions, 710 flow [2021-03-26 13:15:45,536 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 69 transitions, 710 flow [2021-03-26 13:15:45,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 69 transitions, 710 flow [2021-03-26 13:15:45,544 INFO L129 PetriNetUnfolder]: 0/91 cut-off events. [2021-03-26 13:15:45,544 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:45,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 91 events. 0/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 281 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2021-03-26 13:15:45,546 INFO L142 LiptonReduction]: Number of co-enabled transitions 2948 [2021-03-26 13:15:46,376 INFO L154 LiptonReduction]: Checked pairs total: 1199 [2021-03-26 13:15:46,377 INFO L156 LiptonReduction]: Total number of compositions: 22 [2021-03-26 13:15:46,377 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 843 [2021-03-26 13:15:46,382 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:46,382 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:46,382 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:46,382 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:46,382 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:46,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:46,383 INFO L82 PathProgramCache]: Analyzing trace with hash 36259, now seen corresponding path program 1 times [2021-03-26 13:15:46,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:46,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873645944] [2021-03-26 13:15:46,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:46,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:46,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:46,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873645944] [2021-03-26 13:15:46,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:46,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:46,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400843392] [2021-03-26 13:15:46,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:46,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:46,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:46,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:46,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 93 [2021-03-26 13:15:46,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 47 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:46,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:46,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 93 [2021-03-26 13:15:46,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:46,400 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-03-26 13:15:46,401 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:46,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 23/69 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2021-03-26 13:15:46,401 INFO L132 encePairwiseOnDemand]: 91/93 looper letters, 0 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2021-03-26 13:15:46,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 46 transitions, 666 flow [2021-03-26 13:15:46,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2021-03-26 13:15:46,402 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.974910394265233 [2021-03-26 13:15:46,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2021-03-26 13:15:46,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2021-03-26 13:15:46,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:46,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2021-03-26 13:15:46,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:46,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:46,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:46,404 INFO L185 Difference]: Start difference. First operand has 92 places, 47 transitions, 666 flow. Second operand 3 states and 272 transitions. [2021-03-26 13:15:46,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 46 transitions, 666 flow [2021-03-26 13:15:46,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 46 transitions, 204 flow, removed 231 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:46,411 INFO L241 Difference]: Finished difference. Result has 93 places, 46 transitions, 204 flow [2021-03-26 13:15:46,411 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=93, PETRI_TRANSITIONS=46} [2021-03-26 13:15:46,411 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, 1 predicate places. [2021-03-26 13:15:46,412 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:46,412 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 46 transitions, 204 flow [2021-03-26 13:15:46,412 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 46 transitions, 204 flow [2021-03-26 13:15:46,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 46 transitions, 204 flow [2021-03-26 13:15:46,416 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-03-26 13:15:46,416 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:46,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2021-03-26 13:15:46,417 INFO L142 LiptonReduction]: Number of co-enabled transitions 968 [2021-03-26 13:15:46,420 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:46,420 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:46,420 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 13:15:46,420 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 46 transitions, 204 flow [2021-03-26 13:15:46,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:46,421 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:46,421 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:46,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-26 13:15:46,421 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:46,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:46,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1905098359, now seen corresponding path program 1 times [2021-03-26 13:15:46,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:46,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570588161] [2021-03-26 13:15:46,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:46,425 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:46,427 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:46,432 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:46,433 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:46,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-26 13:15:46,433 WARN L342 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:46,434 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2021-03-26 13:15:46,461 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:46,461 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:46,462 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:46,462 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:46,462 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:46,462 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:46,462 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:46,462 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:46,462 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:46,462 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:46,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 74 transitions, 769 flow [2021-03-26 13:15:46,474 INFO L129 PetriNetUnfolder]: 0/143 cut-off events. [2021-03-26 13:15:46,475 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:46,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 143 events. 0/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 469 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2021-03-26 13:15:46,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 74 transitions, 769 flow [2021-03-26 13:15:46,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 72 transitions, 765 flow [2021-03-26 13:15:46,476 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:46,476 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 72 transitions, 765 flow [2021-03-26 13:15:46,476 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 72 transitions, 765 flow [2021-03-26 13:15:46,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 72 transitions, 765 flow [2021-03-26 13:15:46,484 INFO L129 PetriNetUnfolder]: 0/95 cut-off events. [2021-03-26 13:15:46,484 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:46,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 95 events. 0/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 275 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2021-03-26 13:15:46,487 INFO L142 LiptonReduction]: Number of co-enabled transitions 3220 [2021-03-26 13:15:47,411 INFO L154 LiptonReduction]: Checked pairs total: 1311 [2021-03-26 13:15:47,411 INFO L156 LiptonReduction]: Total number of compositions: 23 [2021-03-26 13:15:47,412 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 936 [2021-03-26 13:15:47,413 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:47,413 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:47,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:47,414 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:47,414 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:47,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:47,414 INFO L82 PathProgramCache]: Analyzing trace with hash 39331, now seen corresponding path program 1 times [2021-03-26 13:15:47,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:47,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40562491] [2021-03-26 13:15:47,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:47,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:47,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:47,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40562491] [2021-03-26 13:15:47,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:47,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:47,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688234890] [2021-03-26 13:15:47,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:47,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:47,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:47,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:47,422 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 97 [2021-03-26 13:15:47,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 49 transitions, 719 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:47,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:47,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 97 [2021-03-26 13:15:47,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:47,430 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-03-26 13:15:47,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:47,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 24/72 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2021-03-26 13:15:47,430 INFO L132 encePairwiseOnDemand]: 95/97 looper letters, 0 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2021-03-26 13:15:47,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 48 transitions, 719 flow [2021-03-26 13:15:47,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:47,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2021-03-26 13:15:47,431 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9759450171821306 [2021-03-26 13:15:47,431 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2021-03-26 13:15:47,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2021-03-26 13:15:47,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:47,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2021-03-26 13:15:47,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:47,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:47,433 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:47,433 INFO L185 Difference]: Start difference. First operand has 96 places, 49 transitions, 719 flow. Second operand 3 states and 284 transitions. [2021-03-26 13:15:47,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 48 transitions, 719 flow [2021-03-26 13:15:47,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 48 transitions, 213 flow, removed 253 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:47,445 INFO L241 Difference]: Finished difference. Result has 97 places, 48 transitions, 213 flow [2021-03-26 13:15:47,445 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=97, PETRI_TRANSITIONS=48} [2021-03-26 13:15:47,445 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, 1 predicate places. [2021-03-26 13:15:47,445 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:47,445 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 48 transitions, 213 flow [2021-03-26 13:15:47,445 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 48 transitions, 213 flow [2021-03-26 13:15:47,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 48 transitions, 213 flow [2021-03-26 13:15:47,450 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-03-26 13:15:47,450 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:47,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2021-03-26 13:15:47,451 INFO L142 LiptonReduction]: Number of co-enabled transitions 1058 [2021-03-26 13:15:47,453 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:47,453 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:47,453 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 13:15:47,453 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 48 transitions, 213 flow [2021-03-26 13:15:47,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:47,453 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:47,454 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] [2021-03-26 13:15:47,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-26 13:15:47,454 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:47,454 INFO L82 PathProgramCache]: Analyzing trace with hash -113046974, now seen corresponding path program 1 times [2021-03-26 13:15:47,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:47,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73512201] [2021-03-26 13:15:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:47,459 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:47,461 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:47,465 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:47,465 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:47,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-26 13:15:47,466 WARN L342 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:47,466 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2021-03-26 13:15:47,490 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:47,490 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:47,491 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:47,491 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:47,491 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:47,491 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:47,491 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:47,491 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:47,491 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:47,491 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:47,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 77 transitions, 826 flow [2021-03-26 13:15:47,504 INFO L129 PetriNetUnfolder]: 0/149 cut-off events. [2021-03-26 13:15:47,504 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:47,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 149 events. 0/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 472 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2021-03-26 13:15:47,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 77 transitions, 826 flow [2021-03-26 13:15:47,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 75 transitions, 822 flow [2021-03-26 13:15:47,505 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:47,505 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 75 transitions, 822 flow [2021-03-26 13:15:47,506 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 75 transitions, 822 flow [2021-03-26 13:15:47,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 75 transitions, 822 flow [2021-03-26 13:15:47,515 INFO L129 PetriNetUnfolder]: 0/99 cut-off events. [2021-03-26 13:15:47,515 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:47,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 99 events. 0/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 279 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2021-03-26 13:15:47,518 INFO L142 LiptonReduction]: Number of co-enabled transitions 3504 [2021-03-26 13:15:48,556 INFO L154 LiptonReduction]: Checked pairs total: 1428 [2021-03-26 13:15:48,556 INFO L156 LiptonReduction]: Total number of compositions: 24 [2021-03-26 13:15:48,557 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1052 [2021-03-26 13:15:48,558 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:48,558 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:48,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:48,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:48,558 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:48,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:48,559 INFO L82 PathProgramCache]: Analyzing trace with hash 42531, now seen corresponding path program 1 times [2021-03-26 13:15:48,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:48,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52552687] [2021-03-26 13:15:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:48,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:48,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:48,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52552687] [2021-03-26 13:15:48,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:48,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:48,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065268318] [2021-03-26 13:15:48,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:48,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:48,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:48,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:48,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 101 [2021-03-26 13:15:48,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 51 transitions, 774 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:48,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:48,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 101 [2021-03-26 13:15:48,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:48,577 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-03-26 13:15:48,577 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:48,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 50 events. 0/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 25/75 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2021-03-26 13:15:48,578 INFO L132 encePairwiseOnDemand]: 99/101 looper letters, 0 selfloop transitions, 1 changer transitions 0/50 dead transitions. [2021-03-26 13:15:48,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 50 transitions, 774 flow [2021-03-26 13:15:48,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:48,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:48,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-03-26 13:15:48,579 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.976897689768977 [2021-03-26 13:15:48,579 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-03-26 13:15:48,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-03-26 13:15:48,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:48,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-03-26 13:15:48,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:48,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:48,581 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:48,581 INFO L185 Difference]: Start difference. First operand has 100 places, 51 transitions, 774 flow. Second operand 3 states and 296 transitions. [2021-03-26 13:15:48,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 50 transitions, 774 flow [2021-03-26 13:15:48,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 50 transitions, 222 flow, removed 276 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:48,588 INFO L241 Difference]: Finished difference. Result has 101 places, 50 transitions, 222 flow [2021-03-26 13:15:48,588 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=101, PETRI_TRANSITIONS=50} [2021-03-26 13:15:48,589 INFO L343 CegarLoopForPetriNet]: 100 programPoint places, 1 predicate places. [2021-03-26 13:15:48,589 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:48,589 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 50 transitions, 222 flow [2021-03-26 13:15:48,589 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 50 transitions, 222 flow [2021-03-26 13:15:48,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 50 transitions, 222 flow [2021-03-26 13:15:48,594 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-03-26 13:15:48,595 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:48,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 50 events. 0/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2021-03-26 13:15:48,596 INFO L142 LiptonReduction]: Number of co-enabled transitions 1152 [2021-03-26 13:15:48,597 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:48,598 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:48,598 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 13:15:48,599 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 50 transitions, 222 flow [2021-03-26 13:15:48,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:48,599 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:48,599 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] [2021-03-26 13:15:48,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-26 13:15:48,600 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:48,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:48,600 INFO L82 PathProgramCache]: Analyzing trace with hash -2014993076, now seen corresponding path program 1 times [2021-03-26 13:15:48,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:48,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640054011] [2021-03-26 13:15:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:48,605 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:48,615 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:48,621 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:48,621 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:48,621 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-26 13:15:48,621 WARN L342 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:48,622 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2021-03-26 13:15:48,651 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:48,652 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:48,652 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:48,652 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:48,652 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:48,653 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:48,653 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:48,653 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:48,653 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:48,653 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:48,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 131 places, 80 transitions, 885 flow [2021-03-26 13:15:48,668 INFO L129 PetriNetUnfolder]: 0/155 cut-off events. [2021-03-26 13:15:48,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:48,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 556 conditions, 155 events. 0/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 516 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2021-03-26 13:15:48,668 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 80 transitions, 885 flow [2021-03-26 13:15:48,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 78 transitions, 881 flow [2021-03-26 13:15:48,669 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:48,670 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 78 transitions, 881 flow [2021-03-26 13:15:48,670 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 78 transitions, 881 flow [2021-03-26 13:15:48,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 78 transitions, 881 flow [2021-03-26 13:15:48,681 INFO L129 PetriNetUnfolder]: 0/103 cut-off events. [2021-03-26 13:15:48,681 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:48,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 103 events. 0/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 261 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2021-03-26 13:15:48,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 3800 [2021-03-26 13:15:49,667 INFO L154 LiptonReduction]: Checked pairs total: 1550 [2021-03-26 13:15:49,668 INFO L156 LiptonReduction]: Total number of compositions: 25 [2021-03-26 13:15:49,668 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 999 [2021-03-26 13:15:49,669 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:49,669 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:49,669 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:49,669 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:49,669 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:49,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:49,669 INFO L82 PathProgramCache]: Analyzing trace with hash 45859, now seen corresponding path program 1 times [2021-03-26 13:15:49,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:49,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919570427] [2021-03-26 13:15:49,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:49,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:49,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:49,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919570427] [2021-03-26 13:15:49,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:49,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:49,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978806464] [2021-03-26 13:15:49,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:49,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:49,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:49,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:49,678 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 105 [2021-03-26 13:15:49,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 53 transitions, 831 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:49,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:49,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 105 [2021-03-26 13:15:49,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:49,686 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-03-26 13:15:49,686 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:49,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 26/78 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2021-03-26 13:15:49,687 INFO L132 encePairwiseOnDemand]: 103/105 looper letters, 0 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2021-03-26 13:15:49,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 52 transitions, 831 flow [2021-03-26 13:15:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:49,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:49,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2021-03-26 13:15:49,688 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9777777777777777 [2021-03-26 13:15:49,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2021-03-26 13:15:49,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2021-03-26 13:15:49,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:49,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2021-03-26 13:15:49,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:49,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:49,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:49,690 INFO L185 Difference]: Start difference. First operand has 104 places, 53 transitions, 831 flow. Second operand 3 states and 308 transitions. [2021-03-26 13:15:49,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 52 transitions, 831 flow [2021-03-26 13:15:49,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 52 transitions, 231 flow, removed 300 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:49,698 INFO L241 Difference]: Finished difference. Result has 105 places, 52 transitions, 231 flow [2021-03-26 13:15:49,698 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=105, PETRI_TRANSITIONS=52} [2021-03-26 13:15:49,698 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2021-03-26 13:15:49,698 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:49,698 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 52 transitions, 231 flow [2021-03-26 13:15:49,698 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 52 transitions, 231 flow [2021-03-26 13:15:49,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 52 transitions, 231 flow [2021-03-26 13:15:49,703 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-03-26 13:15:49,704 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:49,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2021-03-26 13:15:49,705 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-26 13:15:49,706 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:49,706 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:49,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 13:15:49,707 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 52 transitions, 231 flow [2021-03-26 13:15:49,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:49,707 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:49,707 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] [2021-03-26 13:15:49,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-26 13:15:49,707 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:49,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:49,708 INFO L82 PathProgramCache]: Analyzing trace with hash -4577491, now seen corresponding path program 1 times [2021-03-26 13:15:49,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:49,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84518481] [2021-03-26 13:15:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:49,713 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:49,714 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:49,717 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:49,718 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:49,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-26 13:15:49,718 WARN L342 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:49,718 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2021-03-26 13:15:49,742 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:49,743 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:49,743 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:49,743 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:49,743 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:49,743 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:49,743 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:49,743 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:49,743 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:49,743 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:49,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 83 transitions, 946 flow [2021-03-26 13:15:49,757 INFO L129 PetriNetUnfolder]: 0/161 cut-off events. [2021-03-26 13:15:49,757 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:49,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 161 events. 0/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 506 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 0. Up to 27 conditions per place. [2021-03-26 13:15:49,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 83 transitions, 946 flow [2021-03-26 13:15:49,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 81 transitions, 942 flow [2021-03-26 13:15:49,759 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:49,759 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 81 transitions, 942 flow [2021-03-26 13:15:49,759 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 81 transitions, 942 flow [2021-03-26 13:15:49,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 81 transitions, 942 flow [2021-03-26 13:15:49,769 INFO L129 PetriNetUnfolder]: 0/107 cut-off events. [2021-03-26 13:15:49,770 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:49,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 107 events. 0/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 345 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 0. Up to 27 conditions per place. [2021-03-26 13:15:49,775 INFO L142 LiptonReduction]: Number of co-enabled transitions 4108 [2021-03-26 13:15:50,804 INFO L154 LiptonReduction]: Checked pairs total: 1677 [2021-03-26 13:15:50,804 INFO L156 LiptonReduction]: Total number of compositions: 26 [2021-03-26 13:15:50,805 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1046 [2021-03-26 13:15:50,805 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:50,805 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:50,805 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:50,805 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:50,806 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:50,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:50,806 INFO L82 PathProgramCache]: Analyzing trace with hash 49315, now seen corresponding path program 1 times [2021-03-26 13:15:50,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:50,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790467419] [2021-03-26 13:15:50,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:50,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:50,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:50,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:50,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790467419] [2021-03-26 13:15:50,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:50,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:50,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342412936] [2021-03-26 13:15:50,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:50,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:50,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:50,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:50,815 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 109 [2021-03-26 13:15:50,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 55 transitions, 890 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:50,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:50,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 109 [2021-03-26 13:15:50,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:50,824 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2021-03-26 13:15:50,824 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:50,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 54 events. 0/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 27/81 useless extension candidates. Maximal degree in co-relation 0. Up to 27 conditions per place. [2021-03-26 13:15:50,824 INFO L132 encePairwiseOnDemand]: 107/109 looper letters, 0 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2021-03-26 13:15:50,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 54 transitions, 890 flow [2021-03-26 13:15:50,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:50,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:50,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2021-03-26 13:15:50,826 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9785932721712538 [2021-03-26 13:15:50,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2021-03-26 13:15:50,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2021-03-26 13:15:50,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:50,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2021-03-26 13:15:50,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:50,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:50,828 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:50,828 INFO L185 Difference]: Start difference. First operand has 108 places, 55 transitions, 890 flow. Second operand 3 states and 320 transitions. [2021-03-26 13:15:50,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 54 transitions, 890 flow [2021-03-26 13:15:50,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 54 transitions, 240 flow, removed 325 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:50,837 INFO L241 Difference]: Finished difference. Result has 109 places, 54 transitions, 240 flow [2021-03-26 13:15:50,837 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=109, PETRI_TRANSITIONS=54} [2021-03-26 13:15:50,837 INFO L343 CegarLoopForPetriNet]: 108 programPoint places, 1 predicate places. [2021-03-26 13:15:50,837 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:50,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 54 transitions, 240 flow [2021-03-26 13:15:50,838 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 54 transitions, 240 flow [2021-03-26 13:15:50,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 54 transitions, 240 flow [2021-03-26 13:15:50,843 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2021-03-26 13:15:50,843 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:50,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 54 events. 0/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 0. Up to 27 conditions per place. [2021-03-26 13:15:50,844 INFO L142 LiptonReduction]: Number of co-enabled transitions 1352 [2021-03-26 13:15:50,846 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:50,846 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:50,846 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 13:15:50,846 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 54 transitions, 240 flow [2021-03-26 13:15:50,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:50,847 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:50,847 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] [2021-03-26 13:15:50,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-26 13:15:50,847 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:50,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:50,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1477290255, now seen corresponding path program 1 times [2021-03-26 13:15:50,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:50,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697385621] [2021-03-26 13:15:50,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:50,853 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:50,855 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:50,861 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:50,862 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:50,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-26 13:15:50,862 WARN L342 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:50,862 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2021-03-26 13:15:50,887 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:50,887 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:50,888 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:50,888 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:50,888 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:50,888 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:50,888 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:50,888 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:50,888 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:50,888 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:50,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 86 transitions, 1009 flow [2021-03-26 13:15:50,903 INFO L129 PetriNetUnfolder]: 0/167 cut-off events. [2021-03-26 13:15:50,903 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:50,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 167 events. 0/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 561 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2021-03-26 13:15:50,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 86 transitions, 1009 flow [2021-03-26 13:15:50,904 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 84 transitions, 1005 flow [2021-03-26 13:15:50,904 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:50,904 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 84 transitions, 1005 flow [2021-03-26 13:15:50,904 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 84 transitions, 1005 flow [2021-03-26 13:15:50,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 84 transitions, 1005 flow [2021-03-26 13:15:50,915 INFO L129 PetriNetUnfolder]: 0/111 cut-off events. [2021-03-26 13:15:50,915 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:50,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 111 events. 0/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 304 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2021-03-26 13:15:50,918 INFO L142 LiptonReduction]: Number of co-enabled transitions 4428 [2021-03-26 13:15:52,215 INFO L154 LiptonReduction]: Checked pairs total: 1809 [2021-03-26 13:15:52,215 INFO L156 LiptonReduction]: Total number of compositions: 27 [2021-03-26 13:15:52,215 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1311 [2021-03-26 13:15:52,216 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:52,216 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:52,216 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:52,216 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:52,216 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:52,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:52,216 INFO L82 PathProgramCache]: Analyzing trace with hash 52899, now seen corresponding path program 1 times [2021-03-26 13:15:52,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:52,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310581909] [2021-03-26 13:15:52,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:52,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:52,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:52,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310581909] [2021-03-26 13:15:52,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:52,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:52,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305417077] [2021-03-26 13:15:52,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:52,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:52,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:52,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:52,240 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 113 [2021-03-26 13:15:52,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 57 transitions, 951 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 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) [2021-03-26 13:15:52,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:52,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 113 [2021-03-26 13:15:52,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:52,265 INFO L129 PetriNetUnfolder]: 0/56 cut-off events. [2021-03-26 13:15:52,265 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:52,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 56 events. 0/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 28/84 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2021-03-26 13:15:52,266 INFO L132 encePairwiseOnDemand]: 111/113 looper letters, 0 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2021-03-26 13:15:52,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 56 transitions, 951 flow [2021-03-26 13:15:52,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:52,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2021-03-26 13:15:52,267 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9793510324483776 [2021-03-26 13:15:52,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2021-03-26 13:15:52,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2021-03-26 13:15:52,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:52,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2021-03-26 13:15:52,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 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) [2021-03-26 13:15:52,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:52,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:52,269 INFO L185 Difference]: Start difference. First operand has 112 places, 57 transitions, 951 flow. Second operand 3 states and 332 transitions. [2021-03-26 13:15:52,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 56 transitions, 951 flow [2021-03-26 13:15:52,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 56 transitions, 249 flow, removed 351 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:52,288 INFO L241 Difference]: Finished difference. Result has 113 places, 56 transitions, 249 flow [2021-03-26 13:15:52,288 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=113, PETRI_TRANSITIONS=56} [2021-03-26 13:15:52,289 INFO L343 CegarLoopForPetriNet]: 112 programPoint places, 1 predicate places. [2021-03-26 13:15:52,289 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:52,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 56 transitions, 249 flow [2021-03-26 13:15:52,289 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 56 transitions, 249 flow [2021-03-26 13:15:52,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 56 transitions, 249 flow [2021-03-26 13:15:52,294 INFO L129 PetriNetUnfolder]: 0/56 cut-off events. [2021-03-26 13:15:52,294 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:52,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 56 events. 0/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2021-03-26 13:15:52,295 INFO L142 LiptonReduction]: Number of co-enabled transitions 1458 [2021-03-26 13:15:52,297 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:52,297 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:52,297 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 13:15:52,298 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 56 transitions, 249 flow [2021-03-26 13:15:52,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 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) [2021-03-26 13:15:52,298 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:52,298 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:52,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-26 13:15:52,298 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:52,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:52,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1932848600, now seen corresponding path program 1 times [2021-03-26 13:15:52,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:52,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111285300] [2021-03-26 13:15:52,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:52,304 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:52,306 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:52,309 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:52,309 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:52,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-26 13:15:52,310 WARN L342 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:52,310 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2021-03-26 13:15:52,341 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:52,341 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:52,342 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:52,342 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:52,342 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:52,342 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:52,342 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:52,342 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:52,342 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:52,342 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:52,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 89 transitions, 1074 flow [2021-03-26 13:15:52,359 INFO L129 PetriNetUnfolder]: 0/173 cut-off events. [2021-03-26 13:15:52,360 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:52,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 173 events. 0/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 571 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2021-03-26 13:15:52,360 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 89 transitions, 1074 flow [2021-03-26 13:15:52,361 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 87 transitions, 1070 flow [2021-03-26 13:15:52,361 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:52,361 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 87 transitions, 1070 flow [2021-03-26 13:15:52,362 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 87 transitions, 1070 flow [2021-03-26 13:15:52,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 87 transitions, 1070 flow [2021-03-26 13:15:52,373 INFO L129 PetriNetUnfolder]: 0/115 cut-off events. [2021-03-26 13:15:52,374 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:52,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 115 events. 0/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 361 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2021-03-26 13:15:52,377 INFO L142 LiptonReduction]: Number of co-enabled transitions 4760 [2021-03-26 13:15:53,684 INFO L154 LiptonReduction]: Checked pairs total: 1946 [2021-03-26 13:15:53,685 INFO L156 LiptonReduction]: Total number of compositions: 28 [2021-03-26 13:15:53,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1326 [2021-03-26 13:15:53,688 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:53,688 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:53,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:53,688 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:53,688 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:53,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:53,688 INFO L82 PathProgramCache]: Analyzing trace with hash 56611, now seen corresponding path program 1 times [2021-03-26 13:15:53,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:53,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455236174] [2021-03-26 13:15:53,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:53,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:53,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:53,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:53,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455236174] [2021-03-26 13:15:53,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:53,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:53,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910224519] [2021-03-26 13:15:53,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:53,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:53,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:53,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:53,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 117 [2021-03-26 13:15:53,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 59 transitions, 1014 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:53,700 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:53,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 117 [2021-03-26 13:15:53,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:53,709 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-03-26 13:15:53,709 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:53,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 58 events. 0/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 29/87 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2021-03-26 13:15:53,709 INFO L132 encePairwiseOnDemand]: 115/117 looper letters, 0 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2021-03-26 13:15:53,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 58 transitions, 1014 flow [2021-03-26 13:15:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:53,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2021-03-26 13:15:53,711 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.98005698005698 [2021-03-26 13:15:53,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2021-03-26 13:15:53,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2021-03-26 13:15:53,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:53,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2021-03-26 13:15:53,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:53,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:53,712 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:53,713 INFO L185 Difference]: Start difference. First operand has 116 places, 59 transitions, 1014 flow. Second operand 3 states and 344 transitions. [2021-03-26 13:15:53,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 58 transitions, 1014 flow [2021-03-26 13:15:53,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 58 transitions, 258 flow, removed 378 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:53,722 INFO L241 Difference]: Finished difference. Result has 117 places, 58 transitions, 258 flow [2021-03-26 13:15:53,722 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=117, PETRI_TRANSITIONS=58} [2021-03-26 13:15:53,723 INFO L343 CegarLoopForPetriNet]: 116 programPoint places, 1 predicate places. [2021-03-26 13:15:53,723 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:53,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 58 transitions, 258 flow [2021-03-26 13:15:53,723 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 58 transitions, 258 flow [2021-03-26 13:15:53,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 58 transitions, 258 flow [2021-03-26 13:15:53,729 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-03-26 13:15:53,729 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:53,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 58 events. 0/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2021-03-26 13:15:53,730 INFO L142 LiptonReduction]: Number of co-enabled transitions 1568 [2021-03-26 13:15:53,732 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:53,732 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:53,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 13:15:53,732 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 58 transitions, 258 flow [2021-03-26 13:15:53,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:53,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:53,733 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] [2021-03-26 13:15:53,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-26 13:15:53,733 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:53,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:53,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1008561454, now seen corresponding path program 1 times [2021-03-26 13:15:53,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:53,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556785980] [2021-03-26 13:15:53,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:53,738 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:53,740 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:53,743 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:53,744 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:53,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-26 13:15:53,744 WARN L342 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:53,744 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2021-03-26 13:15:53,772 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:53,772 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:53,773 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:53,773 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:53,773 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:53,773 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:53,773 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:53,773 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:53,773 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:53,773 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:53,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 92 transitions, 1141 flow [2021-03-26 13:15:53,790 INFO L129 PetriNetUnfolder]: 0/179 cut-off events. [2021-03-26 13:15:53,790 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:53,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 179 events. 0/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 587 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2021-03-26 13:15:53,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 92 transitions, 1141 flow [2021-03-26 13:15:53,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 90 transitions, 1137 flow [2021-03-26 13:15:53,791 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:53,792 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 90 transitions, 1137 flow [2021-03-26 13:15:53,792 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 90 transitions, 1137 flow [2021-03-26 13:15:53,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 90 transitions, 1137 flow [2021-03-26 13:15:53,806 INFO L129 PetriNetUnfolder]: 0/119 cut-off events. [2021-03-26 13:15:53,806 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:53,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 119 events. 0/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 333 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2021-03-26 13:15:53,810 INFO L142 LiptonReduction]: Number of co-enabled transitions 5104 [2021-03-26 13:15:55,271 INFO L154 LiptonReduction]: Checked pairs total: 2088 [2021-03-26 13:15:55,271 INFO L156 LiptonReduction]: Total number of compositions: 29 [2021-03-26 13:15:55,271 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1480 [2021-03-26 13:15:55,272 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:15:55,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:55,272 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:55,272 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:55,272 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:55,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:55,273 INFO L82 PathProgramCache]: Analyzing trace with hash 60451, now seen corresponding path program 1 times [2021-03-26 13:15:55,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:55,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810726742] [2021-03-26 13:15:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:55,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:55,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:55,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:55,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810726742] [2021-03-26 13:15:55,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:55,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:55,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816829200] [2021-03-26 13:15:55,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:55,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:55,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:55,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:55,282 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 121 [2021-03-26 13:15:55,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 61 transitions, 1079 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:55,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:55,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 121 [2021-03-26 13:15:55,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:55,292 INFO L129 PetriNetUnfolder]: 0/60 cut-off events. [2021-03-26 13:15:55,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:55,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 30/90 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2021-03-26 13:15:55,293 INFO L132 encePairwiseOnDemand]: 119/121 looper letters, 0 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2021-03-26 13:15:55,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 60 transitions, 1079 flow [2021-03-26 13:15:55,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:55,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2021-03-26 13:15:55,294 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9807162534435262 [2021-03-26 13:15:55,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2021-03-26 13:15:55,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2021-03-26 13:15:55,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:55,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2021-03-26 13:15:55,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:55,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:55,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:55,296 INFO L185 Difference]: Start difference. First operand has 120 places, 61 transitions, 1079 flow. Second operand 3 states and 356 transitions. [2021-03-26 13:15:55,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 60 transitions, 1079 flow [2021-03-26 13:15:55,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 60 transitions, 267 flow, removed 406 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:55,307 INFO L241 Difference]: Finished difference. Result has 121 places, 60 transitions, 267 flow [2021-03-26 13:15:55,307 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=121, PETRI_TRANSITIONS=60} [2021-03-26 13:15:55,307 INFO L343 CegarLoopForPetriNet]: 120 programPoint places, 1 predicate places. [2021-03-26 13:15:55,307 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:55,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 60 transitions, 267 flow [2021-03-26 13:15:55,307 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 60 transitions, 267 flow [2021-03-26 13:15:55,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 60 transitions, 267 flow [2021-03-26 13:15:55,313 INFO L129 PetriNetUnfolder]: 0/60 cut-off events. [2021-03-26 13:15:55,313 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:55,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2021-03-26 13:15:55,314 INFO L142 LiptonReduction]: Number of co-enabled transitions 1682 [2021-03-26 13:15:55,316 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:55,317 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:55,317 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 13:15:55,317 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 60 transitions, 267 flow [2021-03-26 13:15:55,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:55,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:55,317 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] [2021-03-26 13:15:55,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-26 13:15:55,317 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:55,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:55,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1949254963, now seen corresponding path program 1 times [2021-03-26 13:15:55,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:55,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239173443] [2021-03-26 13:15:55,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:55,324 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:55,325 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:55,329 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:55,329 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:55,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-26 13:15:55,329 WARN L342 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:55,329 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2021-03-26 13:15:55,358 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:55,359 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:55,359 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:55,359 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:55,359 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:55,359 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:55,359 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:55,359 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:55,360 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:55,360 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:55,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 95 transitions, 1210 flow [2021-03-26 13:15:55,377 INFO L129 PetriNetUnfolder]: 0/185 cut-off events. [2021-03-26 13:15:55,377 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:55,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 741 conditions, 185 events. 0/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 599 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2021-03-26 13:15:55,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 95 transitions, 1210 flow [2021-03-26 13:15:55,378 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 93 transitions, 1206 flow [2021-03-26 13:15:55,379 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:55,379 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 93 transitions, 1206 flow [2021-03-26 13:15:55,379 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 93 transitions, 1206 flow [2021-03-26 13:15:55,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 93 transitions, 1206 flow [2021-03-26 13:15:55,393 INFO L129 PetriNetUnfolder]: 0/123 cut-off events. [2021-03-26 13:15:55,393 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:55,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 123 events. 0/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 365 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2021-03-26 13:15:55,397 INFO L142 LiptonReduction]: Number of co-enabled transitions 5460 [2021-03-26 13:15:56,854 INFO L154 LiptonReduction]: Checked pairs total: 2235 [2021-03-26 13:15:56,854 INFO L156 LiptonReduction]: Total number of compositions: 30 [2021-03-26 13:15:56,854 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1475 [2021-03-26 13:15:56,855 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:56,855 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:56,855 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:56,855 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:56,856 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:56,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:56,856 INFO L82 PathProgramCache]: Analyzing trace with hash 64419, now seen corresponding path program 1 times [2021-03-26 13:15:56,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:56,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009344848] [2021-03-26 13:15:56,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:56,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:56,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:56,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009344848] [2021-03-26 13:15:56,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:56,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:56,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118178353] [2021-03-26 13:15:56,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:56,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:56,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:56,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:56,865 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 125 [2021-03-26 13:15:56,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 63 transitions, 1146 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:56,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:56,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 125 [2021-03-26 13:15:56,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:56,875 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-03-26 13:15:56,875 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:56,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 31/93 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2021-03-26 13:15:56,876 INFO L132 encePairwiseOnDemand]: 123/125 looper letters, 0 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2021-03-26 13:15:56,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 62 transitions, 1146 flow [2021-03-26 13:15:56,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2021-03-26 13:15:56,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9813333333333333 [2021-03-26 13:15:56,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2021-03-26 13:15:56,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2021-03-26 13:15:56,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:56,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2021-03-26 13:15:56,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:56,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 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) [2021-03-26 13:15:56,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 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) [2021-03-26 13:15:56,886 INFO L185 Difference]: Start difference. First operand has 124 places, 63 transitions, 1146 flow. Second operand 3 states and 368 transitions. [2021-03-26 13:15:56,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 62 transitions, 1146 flow [2021-03-26 13:15:56,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 62 transitions, 276 flow, removed 435 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:56,898 INFO L241 Difference]: Finished difference. Result has 125 places, 62 transitions, 276 flow [2021-03-26 13:15:56,899 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=125, PETRI_TRANSITIONS=62} [2021-03-26 13:15:56,899 INFO L343 CegarLoopForPetriNet]: 124 programPoint places, 1 predicate places. [2021-03-26 13:15:56,899 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:56,899 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 62 transitions, 276 flow [2021-03-26 13:15:56,899 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 62 transitions, 276 flow [2021-03-26 13:15:56,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 62 transitions, 276 flow [2021-03-26 13:15:56,905 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-03-26 13:15:56,905 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:56,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2021-03-26 13:15:56,906 INFO L142 LiptonReduction]: Number of co-enabled transitions 1800 [2021-03-26 13:15:56,909 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:56,909 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:56,909 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 13:15:56,909 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 62 transitions, 276 flow [2021-03-26 13:15:56,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:56,910 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:56,910 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] [2021-03-26 13:15:56,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-26 13:15:56,911 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:56,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:56,911 INFO L82 PathProgramCache]: Analyzing trace with hash 2018076821, now seen corresponding path program 1 times [2021-03-26 13:15:56,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:56,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691128706] [2021-03-26 13:15:56,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:56,917 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:56,919 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:56,923 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:56,923 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:56,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-26 13:15:56,923 WARN L342 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:56,923 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2021-03-26 13:15:56,953 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:56,954 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:56,954 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:56,954 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:56,955 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:56,955 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:56,955 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:56,955 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:56,955 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:56,955 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:56,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 98 transitions, 1281 flow [2021-03-26 13:15:56,975 INFO L129 PetriNetUnfolder]: 0/191 cut-off events. [2021-03-26 13:15:56,976 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:56,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 191 events. 0/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 620 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2021-03-26 13:15:56,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 98 transitions, 1281 flow [2021-03-26 13:15:56,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 96 transitions, 1277 flow [2021-03-26 13:15:56,977 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:56,977 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 96 transitions, 1277 flow [2021-03-26 13:15:56,978 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 96 transitions, 1277 flow [2021-03-26 13:15:56,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 96 transitions, 1277 flow [2021-03-26 13:15:56,994 INFO L129 PetriNetUnfolder]: 0/127 cut-off events. [2021-03-26 13:15:56,994 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:56,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 127 events. 0/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 353 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2021-03-26 13:15:56,999 INFO L142 LiptonReduction]: Number of co-enabled transitions 5828 [2021-03-26 13:15:58,892 INFO L154 LiptonReduction]: Checked pairs total: 2387 [2021-03-26 13:15:58,892 INFO L156 LiptonReduction]: Total number of compositions: 31 [2021-03-26 13:15:58,892 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1915 [2021-03-26 13:15:58,895 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:15:58,895 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:58,895 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:58,895 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:15:58,896 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:58,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:58,896 INFO L82 PathProgramCache]: Analyzing trace with hash 68515, now seen corresponding path program 1 times [2021-03-26 13:15:58,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:58,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387798659] [2021-03-26 13:15:58,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:15:58,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:15:58,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:15:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:15:58,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387798659] [2021-03-26 13:15:58,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:15:58,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:15:58,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882233686] [2021-03-26 13:15:58,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:15:58,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:15:58,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:15:58,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:15:58,907 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 129 [2021-03-26 13:15:58,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 65 transitions, 1215 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:58,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:15:58,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 129 [2021-03-26 13:15:58,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:15:58,918 INFO L129 PetriNetUnfolder]: 0/64 cut-off events. [2021-03-26 13:15:58,918 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:58,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 64 events. 0/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 32/96 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2021-03-26 13:15:58,918 INFO L132 encePairwiseOnDemand]: 127/129 looper letters, 0 selfloop transitions, 1 changer transitions 0/64 dead transitions. [2021-03-26 13:15:58,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 64 transitions, 1215 flow [2021-03-26 13:15:58,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:15:58,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:15:58,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2021-03-26 13:15:58,919 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9819121447028424 [2021-03-26 13:15:58,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2021-03-26 13:15:58,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2021-03-26 13:15:58,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:15:58,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2021-03-26 13:15:58,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:58,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:58,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:58,921 INFO L185 Difference]: Start difference. First operand has 128 places, 65 transitions, 1215 flow. Second operand 3 states and 380 transitions. [2021-03-26 13:15:58,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 64 transitions, 1215 flow [2021-03-26 13:15:58,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 64 transitions, 285 flow, removed 465 selfloop flow, removed 0 redundant places. [2021-03-26 13:15:58,934 INFO L241 Difference]: Finished difference. Result has 129 places, 64 transitions, 285 flow [2021-03-26 13:15:58,934 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=129, PETRI_TRANSITIONS=64} [2021-03-26 13:15:58,934 INFO L343 CegarLoopForPetriNet]: 128 programPoint places, 1 predicate places. [2021-03-26 13:15:58,934 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:58,934 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 64 transitions, 285 flow [2021-03-26 13:15:58,934 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 64 transitions, 285 flow [2021-03-26 13:15:58,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 64 transitions, 285 flow [2021-03-26 13:15:58,940 INFO L129 PetriNetUnfolder]: 0/64 cut-off events. [2021-03-26 13:15:58,941 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:58,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 64 events. 0/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2021-03-26 13:15:58,942 INFO L142 LiptonReduction]: Number of co-enabled transitions 1922 [2021-03-26 13:15:58,945 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:15:58,946 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:15:58,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 13:15:58,946 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 64 transitions, 285 flow [2021-03-26 13:15:58,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:15:58,946 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:15:58,946 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:15:58,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-26 13:15:58,947 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:15:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:15:58,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1642907058, now seen corresponding path program 1 times [2021-03-26 13:15:58,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:15:58,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608368633] [2021-03-26 13:15:58,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:15:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:58,953 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:15:58,955 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:15:58,959 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:15:58,960 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:15:58,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-26 13:15:58,960 WARN L342 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:15:58,960 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2021-03-26 13:15:58,992 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:15:58,992 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:15:58,993 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:15:58,993 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:15:58,993 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:15:58,993 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:15:58,993 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:15:58,993 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:15:58,993 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:15:58,993 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:15:58,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 101 transitions, 1354 flow [2021-03-26 13:15:59,015 INFO L129 PetriNetUnfolder]: 0/197 cut-off events. [2021-03-26 13:15:59,015 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:59,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 197 events. 0/197 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 637 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2021-03-26 13:15:59,015 INFO L82 GeneralOperation]: Start removeDead. Operand has 166 places, 101 transitions, 1354 flow [2021-03-26 13:15:59,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 99 transitions, 1350 flow [2021-03-26 13:15:59,017 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:15:59,017 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 99 transitions, 1350 flow [2021-03-26 13:15:59,017 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 99 transitions, 1350 flow [2021-03-26 13:15:59,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 164 places, 99 transitions, 1350 flow [2021-03-26 13:15:59,033 INFO L129 PetriNetUnfolder]: 0/131 cut-off events. [2021-03-26 13:15:59,033 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:15:59,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 131 events. 0/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 361 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2021-03-26 13:15:59,038 INFO L142 LiptonReduction]: Number of co-enabled transitions 6208 [2021-03-26 13:16:00,788 INFO L154 LiptonReduction]: Checked pairs total: 2544 [2021-03-26 13:16:00,788 INFO L156 LiptonReduction]: Total number of compositions: 32 [2021-03-26 13:16:00,789 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1772 [2021-03-26 13:16:00,794 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:16:00,795 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:00,795 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:00,795 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:00,795 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:00,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:00,804 INFO L82 PathProgramCache]: Analyzing trace with hash 72739, now seen corresponding path program 1 times [2021-03-26 13:16:00,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:00,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760772636] [2021-03-26 13:16:00,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:00,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:00,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:00,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:00,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760772636] [2021-03-26 13:16:00,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:00,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:00,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746079041] [2021-03-26 13:16:00,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:00,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:00,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:00,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:00,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 133 [2021-03-26 13:16:00,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 67 transitions, 1286 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:00,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:00,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 133 [2021-03-26 13:16:00,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:00,850 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-03-26 13:16:00,850 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:00,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 33/99 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2021-03-26 13:16:00,852 INFO L132 encePairwiseOnDemand]: 131/133 looper letters, 0 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2021-03-26 13:16:00,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 66 transitions, 1286 flow [2021-03-26 13:16:00,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:00,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2021-03-26 13:16:00,853 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9824561403508771 [2021-03-26 13:16:00,853 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2021-03-26 13:16:00,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2021-03-26 13:16:00,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:00,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2021-03-26 13:16:00,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:00,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:00,855 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:00,855 INFO L185 Difference]: Start difference. First operand has 132 places, 67 transitions, 1286 flow. Second operand 3 states and 392 transitions. [2021-03-26 13:16:00,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 66 transitions, 1286 flow [2021-03-26 13:16:00,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 66 transitions, 294 flow, removed 496 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:00,869 INFO L241 Difference]: Finished difference. Result has 133 places, 66 transitions, 294 flow [2021-03-26 13:16:00,870 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=133, PETRI_TRANSITIONS=66} [2021-03-26 13:16:00,870 INFO L343 CegarLoopForPetriNet]: 132 programPoint places, 1 predicate places. [2021-03-26 13:16:00,870 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:00,870 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 66 transitions, 294 flow [2021-03-26 13:16:00,871 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 66 transitions, 294 flow [2021-03-26 13:16:00,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 66 transitions, 294 flow [2021-03-26 13:16:00,878 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-03-26 13:16:00,878 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:00,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2021-03-26 13:16:00,880 INFO L142 LiptonReduction]: Number of co-enabled transitions 2048 [2021-03-26 13:16:00,883 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:00,883 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:00,883 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 13:16:00,884 INFO L480 AbstractCegarLoop]: Abstraction has has 133 places, 66 transitions, 294 flow [2021-03-26 13:16:00,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:00,884 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:00,885 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:00,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-26 13:16:00,885 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:00,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:00,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1398026328, now seen corresponding path program 1 times [2021-03-26 13:16:00,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:00,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584373547] [2021-03-26 13:16:00,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:00,892 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:00,894 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:00,899 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:00,899 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:00,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-26 13:16:00,899 WARN L342 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:00,899 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2021-03-26 13:16:00,932 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:00,932 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:00,933 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:00,933 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:00,933 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:00,934 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:00,934 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:00,934 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:00,934 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:00,934 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:00,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 104 transitions, 1429 flow [2021-03-26 13:16:01,046 INFO L129 PetriNetUnfolder]: 0/203 cut-off events. [2021-03-26 13:16:01,047 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:01,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 653 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2021-03-26 13:16:01,047 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 104 transitions, 1429 flow [2021-03-26 13:16:01,048 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 102 transitions, 1425 flow [2021-03-26 13:16:01,048 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:01,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 102 transitions, 1425 flow [2021-03-26 13:16:01,049 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 102 transitions, 1425 flow [2021-03-26 13:16:01,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 102 transitions, 1425 flow [2021-03-26 13:16:01,079 INFO L129 PetriNetUnfolder]: 0/135 cut-off events. [2021-03-26 13:16:01,080 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:01,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 135 events. 0/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 432 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2021-03-26 13:16:01,086 INFO L142 LiptonReduction]: Number of co-enabled transitions 6600 [2021-03-26 13:16:02,851 INFO L154 LiptonReduction]: Checked pairs total: 2706 [2021-03-26 13:16:02,852 INFO L156 LiptonReduction]: Total number of compositions: 33 [2021-03-26 13:16:02,852 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1804 [2021-03-26 13:16:02,853 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:02,853 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:02,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:02,853 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:02,853 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:02,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:02,854 INFO L82 PathProgramCache]: Analyzing trace with hash 77091, now seen corresponding path program 1 times [2021-03-26 13:16:02,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:02,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947682971] [2021-03-26 13:16:02,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:02,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:02,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:02,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:02,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947682971] [2021-03-26 13:16:02,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:02,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:02,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952657530] [2021-03-26 13:16:02,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:02,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:02,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:02,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:02,863 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 137 [2021-03-26 13:16:02,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 69 transitions, 1359 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:02,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:02,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 137 [2021-03-26 13:16:02,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:02,875 INFO L129 PetriNetUnfolder]: 0/68 cut-off events. [2021-03-26 13:16:02,875 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:02,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 34/102 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2021-03-26 13:16:02,876 INFO L132 encePairwiseOnDemand]: 135/137 looper letters, 0 selfloop transitions, 1 changer transitions 0/68 dead transitions. [2021-03-26 13:16:02,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 68 transitions, 1359 flow [2021-03-26 13:16:02,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:02,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:02,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2021-03-26 13:16:02,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9829683698296837 [2021-03-26 13:16:02,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2021-03-26 13:16:02,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2021-03-26 13:16:02,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:02,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2021-03-26 13:16:02,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:02,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:02,879 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:02,879 INFO L185 Difference]: Start difference. First operand has 136 places, 69 transitions, 1359 flow. Second operand 3 states and 404 transitions. [2021-03-26 13:16:02,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 68 transitions, 1359 flow [2021-03-26 13:16:02,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 68 transitions, 303 flow, removed 528 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:02,894 INFO L241 Difference]: Finished difference. Result has 137 places, 68 transitions, 303 flow [2021-03-26 13:16:02,894 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=137, PETRI_TRANSITIONS=68} [2021-03-26 13:16:02,894 INFO L343 CegarLoopForPetriNet]: 136 programPoint places, 1 predicate places. [2021-03-26 13:16:02,894 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:02,894 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 68 transitions, 303 flow [2021-03-26 13:16:02,895 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 68 transitions, 303 flow [2021-03-26 13:16:02,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 68 transitions, 303 flow [2021-03-26 13:16:02,901 INFO L129 PetriNetUnfolder]: 0/68 cut-off events. [2021-03-26 13:16:02,902 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:02,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2021-03-26 13:16:02,903 INFO L142 LiptonReduction]: Number of co-enabled transitions 2178 [2021-03-26 13:16:02,906 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:02,906 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:02,906 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 13:16:02,906 INFO L480 AbstractCegarLoop]: Abstraction has has 137 places, 68 transitions, 303 flow [2021-03-26 13:16:02,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:02,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:02,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:02,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-26 13:16:02,907 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:02,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:02,907 INFO L82 PathProgramCache]: Analyzing trace with hash -103388295, now seen corresponding path program 1 times [2021-03-26 13:16:02,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:02,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959480960] [2021-03-26 13:16:02,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:02,913 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:02,914 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:02,919 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:02,919 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:02,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-26 13:16:02,919 WARN L342 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:02,920 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2021-03-26 13:16:02,953 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:02,953 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:02,954 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:02,954 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:02,954 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:02,954 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:02,954 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:02,954 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:02,954 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:02,954 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:02,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 176 places, 107 transitions, 1506 flow [2021-03-26 13:16:02,976 INFO L129 PetriNetUnfolder]: 0/209 cut-off events. [2021-03-26 13:16:02,977 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:02,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 209 events. 0/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 676 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2021-03-26 13:16:02,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 107 transitions, 1506 flow [2021-03-26 13:16:02,978 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 105 transitions, 1502 flow [2021-03-26 13:16:02,978 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:02,978 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 105 transitions, 1502 flow [2021-03-26 13:16:02,978 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 105 transitions, 1502 flow [2021-03-26 13:16:02,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 105 transitions, 1502 flow [2021-03-26 13:16:03,051 INFO L129 PetriNetUnfolder]: 0/139 cut-off events. [2021-03-26 13:16:03,051 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:03,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 139 events. 0/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 359 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2021-03-26 13:16:03,057 INFO L142 LiptonReduction]: Number of co-enabled transitions 7004 [2021-03-26 13:16:04,786 INFO L154 LiptonReduction]: Checked pairs total: 2873 [2021-03-26 13:16:04,787 INFO L156 LiptonReduction]: Total number of compositions: 34 [2021-03-26 13:16:04,787 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1809 [2021-03-26 13:16:04,788 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:16:04,788 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:04,788 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:04,788 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:04,788 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:04,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:04,788 INFO L82 PathProgramCache]: Analyzing trace with hash 81571, now seen corresponding path program 1 times [2021-03-26 13:16:04,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:04,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248401622] [2021-03-26 13:16:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:04,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:04,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248401622] [2021-03-26 13:16:04,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:04,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:04,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691907655] [2021-03-26 13:16:04,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:04,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:04,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:04,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:04,799 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 141 [2021-03-26 13:16:04,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 71 transitions, 1434 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:04,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:04,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 141 [2021-03-26 13:16:04,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:04,813 INFO L129 PetriNetUnfolder]: 0/70 cut-off events. [2021-03-26 13:16:04,813 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:04,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 70 events. 0/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 35/105 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2021-03-26 13:16:04,814 INFO L132 encePairwiseOnDemand]: 139/141 looper letters, 0 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2021-03-26 13:16:04,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 70 transitions, 1434 flow [2021-03-26 13:16:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:04,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2021-03-26 13:16:04,815 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.983451536643026 [2021-03-26 13:16:04,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2021-03-26 13:16:04,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2021-03-26 13:16:04,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:04,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2021-03-26 13:16:04,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:04,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:04,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:04,817 INFO L185 Difference]: Start difference. First operand has 140 places, 71 transitions, 1434 flow. Second operand 3 states and 416 transitions. [2021-03-26 13:16:04,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 70 transitions, 1434 flow [2021-03-26 13:16:04,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 70 transitions, 312 flow, removed 561 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:04,832 INFO L241 Difference]: Finished difference. Result has 141 places, 70 transitions, 312 flow [2021-03-26 13:16:04,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=141, PETRI_TRANSITIONS=70} [2021-03-26 13:16:04,832 INFO L343 CegarLoopForPetriNet]: 140 programPoint places, 1 predicate places. [2021-03-26 13:16:04,832 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:04,833 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 70 transitions, 312 flow [2021-03-26 13:16:04,833 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 70 transitions, 312 flow [2021-03-26 13:16:04,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 70 transitions, 312 flow [2021-03-26 13:16:04,840 INFO L129 PetriNetUnfolder]: 0/70 cut-off events. [2021-03-26 13:16:04,840 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:04,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 70 events. 0/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2021-03-26 13:16:04,842 INFO L142 LiptonReduction]: Number of co-enabled transitions 2312 [2021-03-26 13:16:04,844 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:04,845 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:04,845 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 13:16:04,845 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 70 transitions, 312 flow [2021-03-26 13:16:04,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:04,845 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:04,845 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:04,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-26 13:16:04,846 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:04,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:04,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1249775589, now seen corresponding path program 1 times [2021-03-26 13:16:04,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:04,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422066275] [2021-03-26 13:16:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:04,852 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:04,854 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:04,859 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:04,859 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:04,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-26 13:16:04,859 WARN L342 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:04,860 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2021-03-26 13:16:04,893 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:04,894 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:04,894 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:04,894 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:04,894 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:04,895 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:04,895 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:04,895 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:04,895 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:04,895 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:04,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 110 transitions, 1585 flow [2021-03-26 13:16:04,967 INFO L129 PetriNetUnfolder]: 0/215 cut-off events. [2021-03-26 13:16:04,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:04,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 215 events. 0/215 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 710 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2021-03-26 13:16:04,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 110 transitions, 1585 flow [2021-03-26 13:16:04,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 108 transitions, 1581 flow [2021-03-26 13:16:04,969 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:04,969 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 108 transitions, 1581 flow [2021-03-26 13:16:04,969 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 108 transitions, 1581 flow [2021-03-26 13:16:04,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 108 transitions, 1581 flow [2021-03-26 13:16:04,985 INFO L129 PetriNetUnfolder]: 0/143 cut-off events. [2021-03-26 13:16:04,985 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:04,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 143 events. 0/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 379 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2021-03-26 13:16:04,990 INFO L142 LiptonReduction]: Number of co-enabled transitions 7420 [2021-03-26 13:16:06,940 INFO L154 LiptonReduction]: Checked pairs total: 3045 [2021-03-26 13:16:06,940 INFO L156 LiptonReduction]: Total number of compositions: 35 [2021-03-26 13:16:06,941 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1972 [2021-03-26 13:16:06,941 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:16:06,941 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:06,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:06,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:06,942 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:06,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:06,942 INFO L82 PathProgramCache]: Analyzing trace with hash 86179, now seen corresponding path program 1 times [2021-03-26 13:16:06,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:06,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487353189] [2021-03-26 13:16:06,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:06,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:06,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:06,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487353189] [2021-03-26 13:16:06,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:06,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:06,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711030992] [2021-03-26 13:16:06,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:06,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:06,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:06,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:06,958 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 145 [2021-03-26 13:16:06,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 73 transitions, 1511 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:06,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:06,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 145 [2021-03-26 13:16:06,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:07,061 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-03-26 13:16:07,061 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:07,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 72 events. 0/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 36/108 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2021-03-26 13:16:07,062 INFO L132 encePairwiseOnDemand]: 143/145 looper letters, 0 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2021-03-26 13:16:07,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 72 transitions, 1511 flow [2021-03-26 13:16:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:07,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:07,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2021-03-26 13:16:07,063 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9839080459770115 [2021-03-26 13:16:07,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2021-03-26 13:16:07,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2021-03-26 13:16:07,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:07,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2021-03-26 13:16:07,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:07,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:07,066 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:07,066 INFO L185 Difference]: Start difference. First operand has 144 places, 73 transitions, 1511 flow. Second operand 3 states and 428 transitions. [2021-03-26 13:16:07,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 72 transitions, 1511 flow [2021-03-26 13:16:07,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 72 transitions, 321 flow, removed 595 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:07,080 INFO L241 Difference]: Finished difference. Result has 145 places, 72 transitions, 321 flow [2021-03-26 13:16:07,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=321, PETRI_PLACES=145, PETRI_TRANSITIONS=72} [2021-03-26 13:16:07,080 INFO L343 CegarLoopForPetriNet]: 144 programPoint places, 1 predicate places. [2021-03-26 13:16:07,080 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:07,080 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 72 transitions, 321 flow [2021-03-26 13:16:07,080 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 72 transitions, 321 flow [2021-03-26 13:16:07,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 72 transitions, 321 flow [2021-03-26 13:16:07,088 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-03-26 13:16:07,088 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:07,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 72 events. 0/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2021-03-26 13:16:07,089 INFO L142 LiptonReduction]: Number of co-enabled transitions 2450 [2021-03-26 13:16:07,092 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:07,092 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:07,092 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 13:16:07,092 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 72 transitions, 321 flow [2021-03-26 13:16:07,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:07,092 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:07,092 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] [2021-03-26 13:16:07,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-26 13:16:07,093 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:07,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:07,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1758155444, now seen corresponding path program 1 times [2021-03-26 13:16:07,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:07,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908708488] [2021-03-26 13:16:07,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:07,102 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:07,103 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:07,111 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:07,112 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:07,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-26 13:16:07,112 WARN L342 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:07,112 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2021-03-26 13:16:07,147 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:07,147 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:07,148 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:07,148 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:07,148 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:07,148 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:07,148 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:07,148 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:07,148 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:07,148 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:07,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 186 places, 113 transitions, 1666 flow [2021-03-26 13:16:07,176 INFO L129 PetriNetUnfolder]: 0/221 cut-off events. [2021-03-26 13:16:07,176 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:07,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 996 conditions, 221 events. 0/221 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 732 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2021-03-26 13:16:07,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 113 transitions, 1666 flow [2021-03-26 13:16:07,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 111 transitions, 1662 flow [2021-03-26 13:16:07,178 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:07,178 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 111 transitions, 1662 flow [2021-03-26 13:16:07,178 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 111 transitions, 1662 flow [2021-03-26 13:16:07,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 111 transitions, 1662 flow [2021-03-26 13:16:07,199 INFO L129 PetriNetUnfolder]: 0/147 cut-off events. [2021-03-26 13:16:07,199 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:07,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 147 events. 0/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 445 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2021-03-26 13:16:07,206 INFO L142 LiptonReduction]: Number of co-enabled transitions 7848 [2021-03-26 13:16:09,200 INFO L154 LiptonReduction]: Checked pairs total: 3222 [2021-03-26 13:16:09,200 INFO L156 LiptonReduction]: Total number of compositions: 36 [2021-03-26 13:16:09,201 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2023 [2021-03-26 13:16:09,201 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:09,201 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:09,201 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:09,201 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:09,202 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:09,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:09,202 INFO L82 PathProgramCache]: Analyzing trace with hash 90915, now seen corresponding path program 1 times [2021-03-26 13:16:09,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:09,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771636713] [2021-03-26 13:16:09,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:09,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:09,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:09,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:09,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771636713] [2021-03-26 13:16:09,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:09,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:09,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346543041] [2021-03-26 13:16:09,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:09,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:09,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:09,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:09,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 149 [2021-03-26 13:16:09,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 75 transitions, 1590 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:09,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:09,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 149 [2021-03-26 13:16:09,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:09,233 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2021-03-26 13:16:09,233 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:09,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 74 events. 0/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 82 event pairs, 0 based on Foata normal form. 37/111 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2021-03-26 13:16:09,234 INFO L132 encePairwiseOnDemand]: 147/149 looper letters, 0 selfloop transitions, 1 changer transitions 0/74 dead transitions. [2021-03-26 13:16:09,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 74 transitions, 1590 flow [2021-03-26 13:16:09,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:09,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2021-03-26 13:16:09,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9843400447427293 [2021-03-26 13:16:09,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2021-03-26 13:16:09,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2021-03-26 13:16:09,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:09,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2021-03-26 13:16:09,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:09,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:09,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:09,237 INFO L185 Difference]: Start difference. First operand has 148 places, 75 transitions, 1590 flow. Second operand 3 states and 440 transitions. [2021-03-26 13:16:09,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 74 transitions, 1590 flow [2021-03-26 13:16:09,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 74 transitions, 330 flow, removed 630 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:09,251 INFO L241 Difference]: Finished difference. Result has 149 places, 74 transitions, 330 flow [2021-03-26 13:16:09,251 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=149, PETRI_TRANSITIONS=74} [2021-03-26 13:16:09,251 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, 1 predicate places. [2021-03-26 13:16:09,251 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:09,251 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 74 transitions, 330 flow [2021-03-26 13:16:09,251 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 74 transitions, 330 flow [2021-03-26 13:16:09,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 74 transitions, 330 flow [2021-03-26 13:16:09,259 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2021-03-26 13:16:09,260 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:09,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 74 events. 0/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2021-03-26 13:16:09,261 INFO L142 LiptonReduction]: Number of co-enabled transitions 2592 [2021-03-26 13:16:09,263 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:09,263 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:09,263 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 13:16:09,264 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 74 transitions, 330 flow [2021-03-26 13:16:09,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:09,264 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:09,264 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:09,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-26 13:16:09,264 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:09,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:09,265 INFO L82 PathProgramCache]: Analyzing trace with hash -620843554, now seen corresponding path program 1 times [2021-03-26 13:16:09,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:09,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71461289] [2021-03-26 13:16:09,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:09,271 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:09,273 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:09,278 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:09,278 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:09,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-26 13:16:09,279 WARN L342 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:09,279 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2021-03-26 13:16:09,320 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:09,320 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:09,321 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:09,321 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:09,321 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:09,321 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:09,321 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:09,321 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:09,321 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:09,321 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:09,323 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 191 places, 116 transitions, 1749 flow [2021-03-26 13:16:09,354 INFO L129 PetriNetUnfolder]: 0/227 cut-off events. [2021-03-26 13:16:09,354 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:09,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 227 events. 0/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 705 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2021-03-26 13:16:09,354 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 116 transitions, 1749 flow [2021-03-26 13:16:09,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 114 transitions, 1745 flow [2021-03-26 13:16:09,356 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:09,356 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 189 places, 114 transitions, 1745 flow [2021-03-26 13:16:09,356 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 189 places, 114 transitions, 1745 flow [2021-03-26 13:16:09,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 189 places, 114 transitions, 1745 flow [2021-03-26 13:16:09,381 INFO L129 PetriNetUnfolder]: 0/151 cut-off events. [2021-03-26 13:16:09,381 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:09,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 966 conditions, 151 events. 0/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 480 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2021-03-26 13:16:09,389 INFO L142 LiptonReduction]: Number of co-enabled transitions 8288 [2021-03-26 13:16:11,482 INFO L154 LiptonReduction]: Checked pairs total: 3404 [2021-03-26 13:16:11,482 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-26 13:16:11,482 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2126 [2021-03-26 13:16:11,483 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:16:11,483 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:11,483 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:11,483 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:11,483 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:11,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:11,483 INFO L82 PathProgramCache]: Analyzing trace with hash 95779, now seen corresponding path program 1 times [2021-03-26 13:16:11,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:11,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813530447] [2021-03-26 13:16:11,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:11,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:11,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:11,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813530447] [2021-03-26 13:16:11,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:11,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:11,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964242094] [2021-03-26 13:16:11,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:11,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:11,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:11,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:11,496 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 153 [2021-03-26 13:16:11,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 77 transitions, 1671 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:11,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:11,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 153 [2021-03-26 13:16:11,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:11,559 INFO L129 PetriNetUnfolder]: 0/76 cut-off events. [2021-03-26 13:16:11,559 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:11,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 76 events. 0/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 38/114 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2021-03-26 13:16:11,559 INFO L132 encePairwiseOnDemand]: 151/153 looper letters, 0 selfloop transitions, 1 changer transitions 0/76 dead transitions. [2021-03-26 13:16:11,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 76 transitions, 1671 flow [2021-03-26 13:16:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:11,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2021-03-26 13:16:11,560 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9847494553376906 [2021-03-26 13:16:11,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2021-03-26 13:16:11,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2021-03-26 13:16:11,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:11,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2021-03-26 13:16:11,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:11,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:11,564 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:11,564 INFO L185 Difference]: Start difference. First operand has 152 places, 77 transitions, 1671 flow. Second operand 3 states and 452 transitions. [2021-03-26 13:16:11,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 76 transitions, 1671 flow [2021-03-26 13:16:11,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 76 transitions, 339 flow, removed 666 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:11,579 INFO L241 Difference]: Finished difference. Result has 153 places, 76 transitions, 339 flow [2021-03-26 13:16:11,579 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=153, PETRI_TRANSITIONS=76} [2021-03-26 13:16:11,579 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, 1 predicate places. [2021-03-26 13:16:11,579 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:11,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 76 transitions, 339 flow [2021-03-26 13:16:11,580 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 76 transitions, 339 flow [2021-03-26 13:16:11,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 153 places, 76 transitions, 339 flow [2021-03-26 13:16:11,588 INFO L129 PetriNetUnfolder]: 0/76 cut-off events. [2021-03-26 13:16:11,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:11,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 76 events. 0/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2021-03-26 13:16:11,589 INFO L142 LiptonReduction]: Number of co-enabled transitions 2738 [2021-03-26 13:16:11,592 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:11,593 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:11,593 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 13:16:11,593 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 76 transitions, 339 flow [2021-03-26 13:16:11,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:11,593 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:11,593 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, 1] [2021-03-26 13:16:11,594 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-26 13:16:11,594 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:11,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:11,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1594398209, now seen corresponding path program 1 times [2021-03-26 13:16:11,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:11,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300340853] [2021-03-26 13:16:11,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:11,601 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:11,603 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:11,611 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:11,612 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:11,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-26 13:16:11,612 WARN L342 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:11,613 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2021-03-26 13:16:11,648 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:11,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:11,649 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:11,649 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:11,649 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:11,649 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:11,649 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:11,649 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:11,649 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:11,649 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:11,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 119 transitions, 1834 flow [2021-03-26 13:16:11,675 INFO L129 PetriNetUnfolder]: 0/233 cut-off events. [2021-03-26 13:16:11,675 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:11,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 233 events. 0/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 762 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 0. Up to 39 conditions per place. [2021-03-26 13:16:11,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 119 transitions, 1834 flow [2021-03-26 13:16:11,677 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 194 places, 117 transitions, 1830 flow [2021-03-26 13:16:11,677 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:11,677 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 194 places, 117 transitions, 1830 flow [2021-03-26 13:16:11,677 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 194 places, 117 transitions, 1830 flow [2021-03-26 13:16:11,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 194 places, 117 transitions, 1830 flow [2021-03-26 13:16:11,698 INFO L129 PetriNetUnfolder]: 0/155 cut-off events. [2021-03-26 13:16:11,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:11,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 155 events. 0/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 431 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 0. Up to 39 conditions per place. [2021-03-26 13:16:11,702 INFO L142 LiptonReduction]: Number of co-enabled transitions 8740 [2021-03-26 13:16:13,665 INFO L154 LiptonReduction]: Checked pairs total: 3591 [2021-03-26 13:16:13,666 INFO L156 LiptonReduction]: Total number of compositions: 38 [2021-03-26 13:16:13,666 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1989 [2021-03-26 13:16:13,666 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:13,666 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:13,666 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:13,666 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:13,667 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:13,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:13,667 INFO L82 PathProgramCache]: Analyzing trace with hash 100771, now seen corresponding path program 1 times [2021-03-26 13:16:13,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:13,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078670862] [2021-03-26 13:16:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:13,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:13,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:13,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:13,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078670862] [2021-03-26 13:16:13,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:13,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:13,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233342689] [2021-03-26 13:16:13,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:13,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:13,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:13,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:13,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 157 [2021-03-26 13:16:13,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 79 transitions, 1754 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:13,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:13,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 157 [2021-03-26 13:16:13,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:13,690 INFO L129 PetriNetUnfolder]: 0/78 cut-off events. [2021-03-26 13:16:13,690 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:13,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 936 conditions, 78 events. 0/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 39/117 useless extension candidates. Maximal degree in co-relation 0. Up to 39 conditions per place. [2021-03-26 13:16:13,690 INFO L132 encePairwiseOnDemand]: 155/157 looper letters, 0 selfloop transitions, 1 changer transitions 0/78 dead transitions. [2021-03-26 13:16:13,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 78 transitions, 1754 flow [2021-03-26 13:16:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:13,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2021-03-26 13:16:13,691 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9851380042462845 [2021-03-26 13:16:13,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 464 transitions. [2021-03-26 13:16:13,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 464 transitions. [2021-03-26 13:16:13,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:13,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 464 transitions. [2021-03-26 13:16:13,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:13,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:13,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:13,693 INFO L185 Difference]: Start difference. First operand has 156 places, 79 transitions, 1754 flow. Second operand 3 states and 464 transitions. [2021-03-26 13:16:13,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 78 transitions, 1754 flow [2021-03-26 13:16:13,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 78 transitions, 348 flow, removed 703 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:13,710 INFO L241 Difference]: Finished difference. Result has 157 places, 78 transitions, 348 flow [2021-03-26 13:16:13,710 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=157, PETRI_TRANSITIONS=78} [2021-03-26 13:16:13,711 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, 1 predicate places. [2021-03-26 13:16:13,711 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:13,711 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 78 transitions, 348 flow [2021-03-26 13:16:13,711 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 78 transitions, 348 flow [2021-03-26 13:16:13,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 78 transitions, 348 flow [2021-03-26 13:16:13,719 INFO L129 PetriNetUnfolder]: 0/78 cut-off events. [2021-03-26 13:16:13,720 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:13,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 78 events. 0/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 0. Up to 39 conditions per place. [2021-03-26 13:16:13,721 INFO L142 LiptonReduction]: Number of co-enabled transitions 2888 [2021-03-26 13:16:13,724 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:13,724 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:13,724 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 13:16:13,725 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 78 transitions, 348 flow [2021-03-26 13:16:13,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:13,725 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:13,725 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, 1, 1] [2021-03-26 13:16:13,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-26 13:16:13,725 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:13,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:13,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1021538209, now seen corresponding path program 1 times [2021-03-26 13:16:13,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:13,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112857796] [2021-03-26 13:16:13,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:13,732 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:13,734 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:13,739 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:13,739 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:13,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-26 13:16:13,739 WARN L342 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:13,739 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2021-03-26 13:16:13,776 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:13,776 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:13,777 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:13,777 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:13,777 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:13,777 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:13,777 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:13,777 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:13,777 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:13,777 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:13,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 201 places, 122 transitions, 1921 flow [2021-03-26 13:16:13,806 INFO L129 PetriNetUnfolder]: 0/239 cut-off events. [2021-03-26 13:16:13,806 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:13,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 239 events. 0/239 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 781 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2021-03-26 13:16:13,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 122 transitions, 1921 flow [2021-03-26 13:16:13,872 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 120 transitions, 1917 flow [2021-03-26 13:16:13,872 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:13,872 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 120 transitions, 1917 flow [2021-03-26 13:16:13,873 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 120 transitions, 1917 flow [2021-03-26 13:16:13,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 199 places, 120 transitions, 1917 flow [2021-03-26 13:16:13,898 INFO L129 PetriNetUnfolder]: 0/159 cut-off events. [2021-03-26 13:16:13,898 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:13,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 159 events. 0/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 379 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2021-03-26 13:16:13,905 INFO L142 LiptonReduction]: Number of co-enabled transitions 9204 [2021-03-26 13:16:16,041 INFO L154 LiptonReduction]: Checked pairs total: 3783 [2021-03-26 13:16:16,041 INFO L156 LiptonReduction]: Total number of compositions: 39 [2021-03-26 13:16:16,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2170 [2021-03-26 13:16:16,042 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:16,042 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:16,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:16,042 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:16,043 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:16,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:16,044 INFO L82 PathProgramCache]: Analyzing trace with hash 105891, now seen corresponding path program 1 times [2021-03-26 13:16:16,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:16,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940941724] [2021-03-26 13:16:16,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:16,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:16,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:16,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:16,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940941724] [2021-03-26 13:16:16,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:16,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:16,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685956200] [2021-03-26 13:16:16,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:16,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:16,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:16,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:16,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 161 [2021-03-26 13:16:16,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 81 transitions, 1839 flow. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:16,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:16,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 161 [2021-03-26 13:16:16,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:16,072 INFO L129 PetriNetUnfolder]: 0/80 cut-off events. [2021-03-26 13:16:16,072 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:16,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 80 events. 0/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 40/120 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2021-03-26 13:16:16,073 INFO L132 encePairwiseOnDemand]: 159/161 looper letters, 0 selfloop transitions, 1 changer transitions 0/80 dead transitions. [2021-03-26 13:16:16,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 80 transitions, 1839 flow [2021-03-26 13:16:16,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:16,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2021-03-26 13:16:16,074 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9855072463768116 [2021-03-26 13:16:16,074 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2021-03-26 13:16:16,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2021-03-26 13:16:16,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:16,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2021-03-26 13:16:16,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:16,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:16,075 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:16,075 INFO L185 Difference]: Start difference. First operand has 160 places, 81 transitions, 1839 flow. Second operand 3 states and 476 transitions. [2021-03-26 13:16:16,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 80 transitions, 1839 flow [2021-03-26 13:16:16,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 80 transitions, 357 flow, removed 741 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:16,093 INFO L241 Difference]: Finished difference. Result has 161 places, 80 transitions, 357 flow [2021-03-26 13:16:16,093 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=357, PETRI_PLACES=161, PETRI_TRANSITIONS=80} [2021-03-26 13:16:16,093 INFO L343 CegarLoopForPetriNet]: 160 programPoint places, 1 predicate places. [2021-03-26 13:16:16,093 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:16,094 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 80 transitions, 357 flow [2021-03-26 13:16:16,094 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 80 transitions, 357 flow [2021-03-26 13:16:16,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 80 transitions, 357 flow [2021-03-26 13:16:16,102 INFO L129 PetriNetUnfolder]: 0/80 cut-off events. [2021-03-26 13:16:16,102 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:16,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 80 events. 0/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2021-03-26 13:16:16,104 INFO L142 LiptonReduction]: Number of co-enabled transitions 3042 [2021-03-26 13:16:16,107 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:16,107 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:16,107 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 13:16:16,108 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 80 transitions, 357 flow [2021-03-26 13:16:16,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:16,108 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:16,108 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, 1, 1, 1] [2021-03-26 13:16:16,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-26 13:16:16,108 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:16,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:16,108 INFO L82 PathProgramCache]: Analyzing trace with hash 131279706, now seen corresponding path program 1 times [2021-03-26 13:16:16,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:16,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850920163] [2021-03-26 13:16:16,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:16,115 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:16,117 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:16,122 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:16,122 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:16,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-26 13:16:16,123 WARN L342 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:16,123 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2021-03-26 13:16:16,166 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:16,166 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:16,167 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:16,167 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:16,167 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:16,167 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:16,167 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:16,167 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:16,167 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:16,167 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:16,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 206 places, 125 transitions, 2010 flow [2021-03-26 13:16:16,197 INFO L129 PetriNetUnfolder]: 0/245 cut-off events. [2021-03-26 13:16:16,197 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:16,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 245 events. 0/245 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 816 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2021-03-26 13:16:16,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 125 transitions, 2010 flow [2021-03-26 13:16:16,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 123 transitions, 2006 flow [2021-03-26 13:16:16,199 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:16,199 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 123 transitions, 2006 flow [2021-03-26 13:16:16,199 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 123 transitions, 2006 flow [2021-03-26 13:16:16,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 123 transitions, 2006 flow [2021-03-26 13:16:16,219 INFO L129 PetriNetUnfolder]: 0/163 cut-off events. [2021-03-26 13:16:16,220 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:16,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 163 events. 0/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 456 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2021-03-26 13:16:16,225 INFO L142 LiptonReduction]: Number of co-enabled transitions 9680 [2021-03-26 13:16:18,506 INFO L154 LiptonReduction]: Checked pairs total: 3980 [2021-03-26 13:16:18,506 INFO L156 LiptonReduction]: Total number of compositions: 40 [2021-03-26 13:16:18,506 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2307 [2021-03-26 13:16:18,507 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:16:18,507 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:18,507 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:18,507 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:18,507 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:18,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:18,507 INFO L82 PathProgramCache]: Analyzing trace with hash 111139, now seen corresponding path program 1 times [2021-03-26 13:16:18,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:18,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470844244] [2021-03-26 13:16:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:18,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:18,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:18,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470844244] [2021-03-26 13:16:18,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:18,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:18,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541864682] [2021-03-26 13:16:18,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:18,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:18,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:18,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:18,521 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 165 [2021-03-26 13:16:18,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 83 transitions, 1926 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:18,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:18,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 165 [2021-03-26 13:16:18,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:18,537 INFO L129 PetriNetUnfolder]: 0/82 cut-off events. [2021-03-26 13:16:18,538 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:18,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 82 events. 0/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 41/123 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2021-03-26 13:16:18,538 INFO L132 encePairwiseOnDemand]: 163/165 looper letters, 0 selfloop transitions, 1 changer transitions 0/82 dead transitions. [2021-03-26 13:16:18,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 82 transitions, 1926 flow [2021-03-26 13:16:18,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:18,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:18,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 488 transitions. [2021-03-26 13:16:18,539 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9858585858585859 [2021-03-26 13:16:18,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 488 transitions. [2021-03-26 13:16:18,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 488 transitions. [2021-03-26 13:16:18,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:18,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 488 transitions. [2021-03-26 13:16:18,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:18,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:18,541 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:18,541 INFO L185 Difference]: Start difference. First operand has 164 places, 83 transitions, 1926 flow. Second operand 3 states and 488 transitions. [2021-03-26 13:16:18,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 82 transitions, 1926 flow [2021-03-26 13:16:18,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 82 transitions, 366 flow, removed 780 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:18,563 INFO L241 Difference]: Finished difference. Result has 165 places, 82 transitions, 366 flow [2021-03-26 13:16:18,563 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=165, PETRI_TRANSITIONS=82} [2021-03-26 13:16:18,563 INFO L343 CegarLoopForPetriNet]: 164 programPoint places, 1 predicate places. [2021-03-26 13:16:18,563 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:18,564 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 82 transitions, 366 flow [2021-03-26 13:16:18,564 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 82 transitions, 366 flow [2021-03-26 13:16:18,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 165 places, 82 transitions, 366 flow [2021-03-26 13:16:18,573 INFO L129 PetriNetUnfolder]: 0/82 cut-off events. [2021-03-26 13:16:18,573 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:18,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 82 events. 0/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2021-03-26 13:16:18,574 INFO L142 LiptonReduction]: Number of co-enabled transitions 3200 [2021-03-26 13:16:18,578 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:18,578 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:18,578 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 13:16:18,578 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 82 transitions, 366 flow [2021-03-26 13:16:18,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:18,578 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:18,578 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, 1, 1, 1, 1, 1] [2021-03-26 13:16:18,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-26 13:16:18,579 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:18,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:18,579 INFO L82 PathProgramCache]: Analyzing trace with hash -92914844, now seen corresponding path program 1 times [2021-03-26 13:16:18,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:18,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507817942] [2021-03-26 13:16:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:18,586 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:18,588 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:18,593 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:18,593 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:18,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-26 13:16:18,594 WARN L342 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:18,594 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2021-03-26 13:16:18,632 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:18,632 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:18,633 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:18,633 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:18,633 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:18,633 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:18,633 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:18,633 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:18,633 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:18,633 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:18,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 211 places, 128 transitions, 2101 flow [2021-03-26 13:16:18,663 INFO L129 PetriNetUnfolder]: 0/251 cut-off events. [2021-03-26 13:16:18,663 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:18,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 251 events. 0/251 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 802 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2021-03-26 13:16:18,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 128 transitions, 2101 flow [2021-03-26 13:16:18,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 126 transitions, 2097 flow [2021-03-26 13:16:18,665 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:18,665 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 126 transitions, 2097 flow [2021-03-26 13:16:18,665 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 126 transitions, 2097 flow [2021-03-26 13:16:18,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 209 places, 126 transitions, 2097 flow [2021-03-26 13:16:18,758 INFO L129 PetriNetUnfolder]: 0/167 cut-off events. [2021-03-26 13:16:18,758 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:18,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 167 events. 0/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 495 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2021-03-26 13:16:18,767 INFO L142 LiptonReduction]: Number of co-enabled transitions 10168 [2021-03-26 13:16:21,097 INFO L154 LiptonReduction]: Checked pairs total: 4182 [2021-03-26 13:16:21,097 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-26 13:16:21,097 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2432 [2021-03-26 13:16:21,098 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:21,098 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:21,098 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:21,098 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:21,098 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:21,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:21,099 INFO L82 PathProgramCache]: Analyzing trace with hash 116515, now seen corresponding path program 1 times [2021-03-26 13:16:21,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:21,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795741527] [2021-03-26 13:16:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:21,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:21,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:21,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:21,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795741527] [2021-03-26 13:16:21,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:21,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:21,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445025887] [2021-03-26 13:16:21,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:21,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:21,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:21,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:21,111 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 169 [2021-03-26 13:16:21,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 85 transitions, 2015 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 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) [2021-03-26 13:16:21,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:21,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 169 [2021-03-26 13:16:21,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:21,128 INFO L129 PetriNetUnfolder]: 0/84 cut-off events. [2021-03-26 13:16:21,128 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:21,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 84 events. 0/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 42/126 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2021-03-26 13:16:21,129 INFO L132 encePairwiseOnDemand]: 167/169 looper letters, 0 selfloop transitions, 1 changer transitions 0/84 dead transitions. [2021-03-26 13:16:21,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 84 transitions, 2015 flow [2021-03-26 13:16:21,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:21,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:21,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2021-03-26 13:16:21,130 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9861932938856016 [2021-03-26 13:16:21,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 500 transitions. [2021-03-26 13:16:21,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 500 transitions. [2021-03-26 13:16:21,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:21,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 500 transitions. [2021-03-26 13:16:21,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 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) [2021-03-26 13:16:21,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:21,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:21,132 INFO L185 Difference]: Start difference. First operand has 168 places, 85 transitions, 2015 flow. Second operand 3 states and 500 transitions. [2021-03-26 13:16:21,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 84 transitions, 2015 flow [2021-03-26 13:16:21,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 84 transitions, 375 flow, removed 820 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:21,159 INFO L241 Difference]: Finished difference. Result has 169 places, 84 transitions, 375 flow [2021-03-26 13:16:21,159 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=375, PETRI_PLACES=169, PETRI_TRANSITIONS=84} [2021-03-26 13:16:21,159 INFO L343 CegarLoopForPetriNet]: 168 programPoint places, 1 predicate places. [2021-03-26 13:16:21,159 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:21,161 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 84 transitions, 375 flow [2021-03-26 13:16:21,161 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 84 transitions, 375 flow [2021-03-26 13:16:21,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 84 transitions, 375 flow [2021-03-26 13:16:21,169 INFO L129 PetriNetUnfolder]: 0/84 cut-off events. [2021-03-26 13:16:21,169 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:21,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 84 events. 0/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2021-03-26 13:16:21,170 INFO L142 LiptonReduction]: Number of co-enabled transitions 3362 [2021-03-26 13:16:21,173 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:21,173 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:21,173 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 13:16:21,173 INFO L480 AbstractCegarLoop]: Abstraction has has 169 places, 84 transitions, 375 flow [2021-03-26 13:16:21,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 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) [2021-03-26 13:16:21,174 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:21,174 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, 1, 1, 1, 1, 1] [2021-03-26 13:16:21,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-26 13:16:21,174 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:21,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:21,174 INFO L82 PathProgramCache]: Analyzing trace with hash -2062937915, now seen corresponding path program 1 times [2021-03-26 13:16:21,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:21,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856030514] [2021-03-26 13:16:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:21,180 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:21,182 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:21,187 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:21,187 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:21,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-26 13:16:21,188 WARN L342 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:21,188 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2021-03-26 13:16:21,237 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:21,238 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:21,238 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:21,238 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:21,238 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:21,238 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:21,238 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:21,238 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:21,238 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:21,238 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:21,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 216 places, 131 transitions, 2194 flow [2021-03-26 13:16:21,275 INFO L129 PetriNetUnfolder]: 0/257 cut-off events. [2021-03-26 13:16:21,275 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:21,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1287 conditions, 257 events. 0/257 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 808 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2021-03-26 13:16:21,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 131 transitions, 2194 flow [2021-03-26 13:16:21,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 129 transitions, 2190 flow [2021-03-26 13:16:21,277 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:21,277 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 214 places, 129 transitions, 2190 flow [2021-03-26 13:16:21,277 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 214 places, 129 transitions, 2190 flow [2021-03-26 13:16:21,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 129 transitions, 2190 flow [2021-03-26 13:16:21,297 INFO L129 PetriNetUnfolder]: 0/171 cut-off events. [2021-03-26 13:16:21,297 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:21,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 171 events. 0/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 493 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2021-03-26 13:16:21,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 10668 [2021-03-26 13:16:23,811 INFO L154 LiptonReduction]: Checked pairs total: 4389 [2021-03-26 13:16:23,811 INFO L156 LiptonReduction]: Total number of compositions: 42 [2021-03-26 13:16:23,811 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2534 [2021-03-26 13:16:23,812 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:23,812 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:23,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:23,812 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:23,812 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:23,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:23,812 INFO L82 PathProgramCache]: Analyzing trace with hash 122019, now seen corresponding path program 1 times [2021-03-26 13:16:23,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:23,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130280169] [2021-03-26 13:16:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:23,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:23,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:23,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:23,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130280169] [2021-03-26 13:16:23,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:23,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:23,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17071423] [2021-03-26 13:16:23,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:23,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:23,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:23,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:23,825 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 173 [2021-03-26 13:16:23,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 87 transitions, 2106 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 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) [2021-03-26 13:16:23,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:23,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 173 [2021-03-26 13:16:23,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:23,838 INFO L129 PetriNetUnfolder]: 0/86 cut-off events. [2021-03-26 13:16:23,839 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:23,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 86 events. 0/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 43/129 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2021-03-26 13:16:23,839 INFO L132 encePairwiseOnDemand]: 171/173 looper letters, 0 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2021-03-26 13:16:23,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 86 transitions, 2106 flow [2021-03-26 13:16:23,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:23,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:23,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2021-03-26 13:16:23,840 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9865125240847784 [2021-03-26 13:16:23,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2021-03-26 13:16:23,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2021-03-26 13:16:23,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:23,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2021-03-26 13:16:23,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 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) [2021-03-26 13:16:23,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:23,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:23,842 INFO L185 Difference]: Start difference. First operand has 172 places, 87 transitions, 2106 flow. Second operand 3 states and 512 transitions. [2021-03-26 13:16:23,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 86 transitions, 2106 flow [2021-03-26 13:16:23,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 86 transitions, 384 flow, removed 861 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:23,873 INFO L241 Difference]: Finished difference. Result has 173 places, 86 transitions, 384 flow [2021-03-26 13:16:23,874 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=173, PETRI_TRANSITIONS=86} [2021-03-26 13:16:23,874 INFO L343 CegarLoopForPetriNet]: 172 programPoint places, 1 predicate places. [2021-03-26 13:16:23,874 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:23,874 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 86 transitions, 384 flow [2021-03-26 13:16:23,874 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 86 transitions, 384 flow [2021-03-26 13:16:23,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 173 places, 86 transitions, 384 flow [2021-03-26 13:16:23,883 INFO L129 PetriNetUnfolder]: 0/86 cut-off events. [2021-03-26 13:16:23,884 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:23,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 86 events. 0/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2021-03-26 13:16:23,885 INFO L142 LiptonReduction]: Number of co-enabled transitions 3528 [2021-03-26 13:16:23,889 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:23,889 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:23,889 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 13:16:23,889 INFO L480 AbstractCegarLoop]: Abstraction has has 173 places, 86 transitions, 384 flow [2021-03-26 13:16:23,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 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) [2021-03-26 13:16:23,889 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:23,889 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, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:23,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-26 13:16:23,890 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:23,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:23,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1248466727, now seen corresponding path program 1 times [2021-03-26 13:16:23,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:23,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844980197] [2021-03-26 13:16:23,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:23,898 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:23,900 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:23,905 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:23,905 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:23,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-26 13:16:23,905 WARN L342 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:23,905 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2021-03-26 13:16:23,945 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:23,946 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:23,946 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:23,946 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:23,946 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:23,946 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:23,946 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:23,946 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:23,946 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:23,946 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:23,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 134 transitions, 2289 flow [2021-03-26 13:16:23,986 INFO L129 PetriNetUnfolder]: 0/263 cut-off events. [2021-03-26 13:16:23,987 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:23,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1339 conditions, 263 events. 0/263 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 856 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2021-03-26 13:16:23,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 134 transitions, 2289 flow [2021-03-26 13:16:23,988 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 132 transitions, 2285 flow [2021-03-26 13:16:23,988 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:23,988 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 132 transitions, 2285 flow [2021-03-26 13:16:23,989 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 132 transitions, 2285 flow [2021-03-26 13:16:23,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 219 places, 132 transitions, 2285 flow [2021-03-26 13:16:24,014 INFO L129 PetriNetUnfolder]: 0/175 cut-off events. [2021-03-26 13:16:24,015 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:24,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 175 events. 0/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 491 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2021-03-26 13:16:24,024 INFO L142 LiptonReduction]: Number of co-enabled transitions 11180 [2021-03-26 13:16:26,642 INFO L154 LiptonReduction]: Checked pairs total: 4601 [2021-03-26 13:16:26,642 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-26 13:16:26,642 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2654 [2021-03-26 13:16:26,643 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:26,643 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:26,643 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:26,643 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:26,643 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:26,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:26,644 INFO L82 PathProgramCache]: Analyzing trace with hash 127651, now seen corresponding path program 1 times [2021-03-26 13:16:26,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:26,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454889105] [2021-03-26 13:16:26,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:26,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:26,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:26,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454889105] [2021-03-26 13:16:26,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:26,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:26,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091527192] [2021-03-26 13:16:26,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:26,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:26,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:26,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:26,658 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 177 [2021-03-26 13:16:26,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 89 transitions, 2199 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:26,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:26,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 177 [2021-03-26 13:16:26,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:26,675 INFO L129 PetriNetUnfolder]: 0/88 cut-off events. [2021-03-26 13:16:26,675 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:26,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 88 events. 0/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 44/132 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2021-03-26 13:16:26,676 INFO L132 encePairwiseOnDemand]: 175/177 looper letters, 0 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2021-03-26 13:16:26,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 88 transitions, 2199 flow [2021-03-26 13:16:26,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2021-03-26 13:16:26,677 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9868173258003766 [2021-03-26 13:16:26,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2021-03-26 13:16:26,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2021-03-26 13:16:26,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:26,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2021-03-26 13:16:26,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:26,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:26,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:26,678 INFO L185 Difference]: Start difference. First operand has 176 places, 89 transitions, 2199 flow. Second operand 3 states and 524 transitions. [2021-03-26 13:16:26,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 88 transitions, 2199 flow [2021-03-26 13:16:26,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 88 transitions, 393 flow, removed 903 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:26,712 INFO L241 Difference]: Finished difference. Result has 177 places, 88 transitions, 393 flow [2021-03-26 13:16:26,712 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=393, PETRI_PLACES=177, PETRI_TRANSITIONS=88} [2021-03-26 13:16:26,712 INFO L343 CegarLoopForPetriNet]: 176 programPoint places, 1 predicate places. [2021-03-26 13:16:26,712 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:26,712 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 88 transitions, 393 flow [2021-03-26 13:16:26,713 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 88 transitions, 393 flow [2021-03-26 13:16:26,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 177 places, 88 transitions, 393 flow [2021-03-26 13:16:26,721 INFO L129 PetriNetUnfolder]: 0/88 cut-off events. [2021-03-26 13:16:26,722 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:26,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 88 events. 0/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2021-03-26 13:16:26,723 INFO L142 LiptonReduction]: Number of co-enabled transitions 3698 [2021-03-26 13:16:26,725 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:26,725 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:26,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 13:16:26,726 INFO L480 AbstractCegarLoop]: Abstraction has has 177 places, 88 transitions, 393 flow [2021-03-26 13:16:26,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:26,726 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:26,726 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, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:26,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-26 13:16:26,726 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:26,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:26,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1295684672, now seen corresponding path program 1 times [2021-03-26 13:16:26,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:26,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975510103] [2021-03-26 13:16:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:26,734 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:26,736 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:26,741 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:26,741 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:26,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-26 13:16:26,741 WARN L342 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:26,741 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2021-03-26 13:16:26,778 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:26,778 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:26,779 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:26,779 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:26,779 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:26,779 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:26,779 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:26,779 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:26,779 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:26,779 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:26,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 226 places, 137 transitions, 2386 flow [2021-03-26 13:16:26,814 INFO L129 PetriNetUnfolder]: 0/269 cut-off events. [2021-03-26 13:16:26,814 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:26,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 269 events. 0/269 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 881 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2021-03-26 13:16:26,814 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 137 transitions, 2386 flow [2021-03-26 13:16:26,816 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 135 transitions, 2382 flow [2021-03-26 13:16:26,816 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:26,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 135 transitions, 2382 flow [2021-03-26 13:16:26,816 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 135 transitions, 2382 flow [2021-03-26 13:16:26,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 135 transitions, 2382 flow [2021-03-26 13:16:26,844 INFO L129 PetriNetUnfolder]: 0/179 cut-off events. [2021-03-26 13:16:26,844 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:26,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1302 conditions, 179 events. 0/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 557 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2021-03-26 13:16:26,853 INFO L142 LiptonReduction]: Number of co-enabled transitions 11704 [2021-03-26 13:16:29,594 INFO L154 LiptonReduction]: Checked pairs total: 4818 [2021-03-26 13:16:29,594 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-26 13:16:29,595 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2779 [2021-03-26 13:16:29,595 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:29,595 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:29,595 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:29,596 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:29,596 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:29,596 INFO L82 PathProgramCache]: Analyzing trace with hash 133411, now seen corresponding path program 1 times [2021-03-26 13:16:29,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:29,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887824127] [2021-03-26 13:16:29,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:29,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:29,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:29,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887824127] [2021-03-26 13:16:29,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:29,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:29,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853880693] [2021-03-26 13:16:29,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:29,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:29,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:29,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:29,608 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 181 [2021-03-26 13:16:29,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 91 transitions, 2294 flow. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:29,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:29,609 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 181 [2021-03-26 13:16:29,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:29,628 INFO L129 PetriNetUnfolder]: 0/90 cut-off events. [2021-03-26 13:16:29,628 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:29,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 90 events. 0/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 45/135 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2021-03-26 13:16:29,629 INFO L132 encePairwiseOnDemand]: 179/181 looper letters, 0 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2021-03-26 13:16:29,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 90 transitions, 2294 flow [2021-03-26 13:16:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:29,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:29,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2021-03-26 13:16:29,629 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9871086556169429 [2021-03-26 13:16:29,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2021-03-26 13:16:29,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2021-03-26 13:16:29,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:29,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2021-03-26 13:16:29,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:29,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:29,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:29,631 INFO L185 Difference]: Start difference. First operand has 180 places, 91 transitions, 2294 flow. Second operand 3 states and 536 transitions. [2021-03-26 13:16:29,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 90 transitions, 2294 flow [2021-03-26 13:16:29,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 90 transitions, 402 flow, removed 946 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:29,667 INFO L241 Difference]: Finished difference. Result has 181 places, 90 transitions, 402 flow [2021-03-26 13:16:29,667 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=181, PETRI_TRANSITIONS=90} [2021-03-26 13:16:29,667 INFO L343 CegarLoopForPetriNet]: 180 programPoint places, 1 predicate places. [2021-03-26 13:16:29,667 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:29,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 90 transitions, 402 flow [2021-03-26 13:16:29,667 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 90 transitions, 402 flow [2021-03-26 13:16:29,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 90 transitions, 402 flow [2021-03-26 13:16:29,675 INFO L129 PetriNetUnfolder]: 0/90 cut-off events. [2021-03-26 13:16:29,676 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:29,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 90 events. 0/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 88 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2021-03-26 13:16:29,677 INFO L142 LiptonReduction]: Number of co-enabled transitions 3872 [2021-03-26 13:16:29,680 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:29,680 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:29,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 13:16:29,681 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 90 transitions, 402 flow [2021-03-26 13:16:29,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:29,681 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:29,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:29,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-26 13:16:29,681 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:29,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:29,681 INFO L82 PathProgramCache]: Analyzing trace with hash -199292694, now seen corresponding path program 1 times [2021-03-26 13:16:29,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:29,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532099113] [2021-03-26 13:16:29,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:29,688 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:29,690 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:29,696 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:29,696 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:29,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-26 13:16:29,696 WARN L342 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:29,696 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2021-03-26 13:16:29,744 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:29,744 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:29,745 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:29,745 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:29,745 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:29,745 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:29,745 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:29,745 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:29,745 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:29,745 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:29,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 231 places, 140 transitions, 2485 flow [2021-03-26 13:16:29,774 INFO L129 PetriNetUnfolder]: 0/275 cut-off events. [2021-03-26 13:16:29,774 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:29,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1446 conditions, 275 events. 0/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 874 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2021-03-26 13:16:29,774 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 140 transitions, 2485 flow [2021-03-26 13:16:29,775 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 138 transitions, 2481 flow [2021-03-26 13:16:29,776 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:29,776 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 138 transitions, 2481 flow [2021-03-26 13:16:29,776 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 138 transitions, 2481 flow [2021-03-26 13:16:29,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 138 transitions, 2481 flow [2021-03-26 13:16:29,796 INFO L129 PetriNetUnfolder]: 0/183 cut-off events. [2021-03-26 13:16:29,796 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:29,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1354 conditions, 183 events. 0/183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 439 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2021-03-26 13:16:29,803 INFO L142 LiptonReduction]: Number of co-enabled transitions 12240 [2021-03-26 13:16:32,748 INFO L154 LiptonReduction]: Checked pairs total: 5040 [2021-03-26 13:16:32,748 INFO L156 LiptonReduction]: Total number of compositions: 45 [2021-03-26 13:16:32,749 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2973 [2021-03-26 13:16:32,749 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:32,749 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:32,749 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:32,749 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:32,750 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:32,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:32,750 INFO L82 PathProgramCache]: Analyzing trace with hash 139299, now seen corresponding path program 1 times [2021-03-26 13:16:32,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:32,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589827477] [2021-03-26 13:16:32,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:32,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:32,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:32,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589827477] [2021-03-26 13:16:32,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:32,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:32,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714546819] [2021-03-26 13:16:32,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:32,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:32,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:32,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:32,760 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 185 [2021-03-26 13:16:32,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 93 transitions, 2391 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:32,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:32,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 185 [2021-03-26 13:16:32,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:32,780 INFO L129 PetriNetUnfolder]: 0/92 cut-off events. [2021-03-26 13:16:32,781 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:32,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1265 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 46/138 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2021-03-26 13:16:32,781 INFO L132 encePairwiseOnDemand]: 183/185 looper letters, 0 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2021-03-26 13:16:32,781 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 92 transitions, 2391 flow [2021-03-26 13:16:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:32,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:32,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2021-03-26 13:16:32,782 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9873873873873874 [2021-03-26 13:16:32,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2021-03-26 13:16:32,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2021-03-26 13:16:32,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:32,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2021-03-26 13:16:32,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:32,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:32,784 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:32,784 INFO L185 Difference]: Start difference. First operand has 184 places, 93 transitions, 2391 flow. Second operand 3 states and 548 transitions. [2021-03-26 13:16:32,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 92 transitions, 2391 flow [2021-03-26 13:16:32,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 92 transitions, 411 flow, removed 990 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:32,817 INFO L241 Difference]: Finished difference. Result has 185 places, 92 transitions, 411 flow [2021-03-26 13:16:32,817 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=185, PETRI_TRANSITIONS=92} [2021-03-26 13:16:32,817 INFO L343 CegarLoopForPetriNet]: 184 programPoint places, 1 predicate places. [2021-03-26 13:16:32,817 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:32,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 92 transitions, 411 flow [2021-03-26 13:16:32,817 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 92 transitions, 411 flow [2021-03-26 13:16:32,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 185 places, 92 transitions, 411 flow [2021-03-26 13:16:32,828 INFO L129 PetriNetUnfolder]: 0/92 cut-off events. [2021-03-26 13:16:32,828 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:32,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2021-03-26 13:16:32,830 INFO L142 LiptonReduction]: Number of co-enabled transitions 4050 [2021-03-26 13:16:32,833 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:32,834 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:32,834 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-26 13:16:32,834 INFO L480 AbstractCegarLoop]: Abstraction has has 185 places, 92 transitions, 411 flow [2021-03-26 13:16:32,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:32,834 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:32,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:32,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-26 13:16:32,835 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:32,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:32,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1531564085, now seen corresponding path program 1 times [2021-03-26 13:16:32,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:32,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341893101] [2021-03-26 13:16:32,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:32,842 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:32,844 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:32,849 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:32,849 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:32,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-26 13:16:32,850 WARN L342 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:32,850 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2021-03-26 13:16:32,891 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:32,892 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:32,892 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:32,892 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:32,892 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:32,892 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:32,892 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:32,892 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:32,892 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:32,892 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:32,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 236 places, 143 transitions, 2586 flow [2021-03-26 13:16:32,927 INFO L129 PetriNetUnfolder]: 0/281 cut-off events. [2021-03-26 13:16:32,927 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:32,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 281 events. 0/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 939 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2021-03-26 13:16:32,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 236 places, 143 transitions, 2586 flow [2021-03-26 13:16:32,929 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 141 transitions, 2582 flow [2021-03-26 13:16:32,929 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:32,929 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 141 transitions, 2582 flow [2021-03-26 13:16:32,929 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 141 transitions, 2582 flow [2021-03-26 13:16:32,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 234 places, 141 transitions, 2582 flow [2021-03-26 13:16:32,958 INFO L129 PetriNetUnfolder]: 0/187 cut-off events. [2021-03-26 13:16:32,958 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:32,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1407 conditions, 187 events. 0/187 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 485 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2021-03-26 13:16:32,965 INFO L142 LiptonReduction]: Number of co-enabled transitions 12788 [2021-03-26 13:16:35,930 INFO L154 LiptonReduction]: Checked pairs total: 5267 [2021-03-26 13:16:35,930 INFO L156 LiptonReduction]: Total number of compositions: 46 [2021-03-26 13:16:35,930 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3001 [2021-03-26 13:16:35,931 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:16:35,931 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:35,931 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:35,931 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:35,931 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:35,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:35,931 INFO L82 PathProgramCache]: Analyzing trace with hash 145315, now seen corresponding path program 1 times [2021-03-26 13:16:35,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:35,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385569411] [2021-03-26 13:16:35,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:35,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:35,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:35,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385569411] [2021-03-26 13:16:35,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:35,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:35,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747986975] [2021-03-26 13:16:35,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:35,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:35,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:35,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:35,941 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 189 [2021-03-26 13:16:35,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 95 transitions, 2490 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:35,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:35,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 189 [2021-03-26 13:16:35,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:35,962 INFO L129 PetriNetUnfolder]: 0/94 cut-off events. [2021-03-26 13:16:35,963 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:35,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1316 conditions, 94 events. 0/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 47/141 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2021-03-26 13:16:35,963 INFO L132 encePairwiseOnDemand]: 187/189 looper letters, 0 selfloop transitions, 1 changer transitions 0/94 dead transitions. [2021-03-26 13:16:35,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 94 transitions, 2490 flow [2021-03-26 13:16:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2021-03-26 13:16:35,964 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9876543209876543 [2021-03-26 13:16:35,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2021-03-26 13:16:35,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2021-03-26 13:16:35,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:35,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2021-03-26 13:16:35,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:35,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:35,966 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:35,966 INFO L185 Difference]: Start difference. First operand has 188 places, 95 transitions, 2490 flow. Second operand 3 states and 560 transitions. [2021-03-26 13:16:35,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 94 transitions, 2490 flow [2021-03-26 13:16:36,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 94 transitions, 420 flow, removed 1035 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:36,012 INFO L241 Difference]: Finished difference. Result has 189 places, 94 transitions, 420 flow [2021-03-26 13:16:36,012 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=189, PETRI_TRANSITIONS=94} [2021-03-26 13:16:36,012 INFO L343 CegarLoopForPetriNet]: 188 programPoint places, 1 predicate places. [2021-03-26 13:16:36,012 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:36,012 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 189 places, 94 transitions, 420 flow [2021-03-26 13:16:36,012 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 189 places, 94 transitions, 420 flow [2021-03-26 13:16:36,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 189 places, 94 transitions, 420 flow [2021-03-26 13:16:36,023 INFO L129 PetriNetUnfolder]: 0/94 cut-off events. [2021-03-26 13:16:36,023 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:36,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 94 events. 0/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2021-03-26 13:16:36,025 INFO L142 LiptonReduction]: Number of co-enabled transitions 4232 [2021-03-26 13:16:36,029 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:36,029 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:36,030 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 13:16:36,030 INFO L480 AbstractCegarLoop]: Abstraction has has 189 places, 94 transitions, 420 flow [2021-03-26 13:16:36,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:36,030 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:36,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:36,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-26 13:16:36,030 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:36,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:36,031 INFO L82 PathProgramCache]: Analyzing trace with hash -790489427, now seen corresponding path program 1 times [2021-03-26 13:16:36,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:36,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752630649] [2021-03-26 13:16:36,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:36,039 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:36,041 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:36,046 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:36,046 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:36,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-26 13:16:36,047 WARN L342 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:36,047 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2021-03-26 13:16:36,091 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:36,091 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:36,091 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:36,091 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:36,091 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:36,091 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:36,091 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:36,091 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:36,091 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:36,091 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:36,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 146 transitions, 2689 flow [2021-03-26 13:16:36,122 INFO L129 PetriNetUnfolder]: 0/287 cut-off events. [2021-03-26 13:16:36,123 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:36,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1557 conditions, 287 events. 0/287 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 908 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2021-03-26 13:16:36,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 146 transitions, 2689 flow [2021-03-26 13:16:36,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 144 transitions, 2685 flow [2021-03-26 13:16:36,125 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:36,125 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 144 transitions, 2685 flow [2021-03-26 13:16:36,125 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 144 transitions, 2685 flow [2021-03-26 13:16:36,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 144 transitions, 2685 flow [2021-03-26 13:16:36,157 INFO L129 PetriNetUnfolder]: 0/191 cut-off events. [2021-03-26 13:16:36,157 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:36,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1461 conditions, 191 events. 0/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 495 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2021-03-26 13:16:36,167 INFO L142 LiptonReduction]: Number of co-enabled transitions 13348 [2021-03-26 13:16:39,539 INFO L154 LiptonReduction]: Checked pairs total: 5499 [2021-03-26 13:16:39,540 INFO L156 LiptonReduction]: Total number of compositions: 47 [2021-03-26 13:16:39,540 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3415 [2021-03-26 13:16:39,540 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:39,540 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:39,540 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:39,540 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:39,540 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:39,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:39,541 INFO L82 PathProgramCache]: Analyzing trace with hash 151459, now seen corresponding path program 1 times [2021-03-26 13:16:39,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:39,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155555584] [2021-03-26 13:16:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:39,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:39,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:39,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:39,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155555584] [2021-03-26 13:16:39,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:39,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:39,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34816142] [2021-03-26 13:16:39,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:39,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:39,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:39,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:39,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 193 [2021-03-26 13:16:39,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 97 transitions, 2591 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:39,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:39,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 193 [2021-03-26 13:16:39,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:39,570 INFO L129 PetriNetUnfolder]: 0/96 cut-off events. [2021-03-26 13:16:39,570 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:39,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 96 events. 0/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 48/144 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2021-03-26 13:16:39,571 INFO L132 encePairwiseOnDemand]: 191/193 looper letters, 0 selfloop transitions, 1 changer transitions 0/96 dead transitions. [2021-03-26 13:16:39,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 96 transitions, 2591 flow [2021-03-26 13:16:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:39,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:39,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 572 transitions. [2021-03-26 13:16:39,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9879101899827288 [2021-03-26 13:16:39,572 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 572 transitions. [2021-03-26 13:16:39,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 572 transitions. [2021-03-26 13:16:39,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:39,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 572 transitions. [2021-03-26 13:16:39,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:39,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:39,574 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:39,574 INFO L185 Difference]: Start difference. First operand has 192 places, 97 transitions, 2591 flow. Second operand 3 states and 572 transitions. [2021-03-26 13:16:39,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 96 transitions, 2591 flow [2021-03-26 13:16:39,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 96 transitions, 429 flow, removed 1081 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:39,618 INFO L241 Difference]: Finished difference. Result has 193 places, 96 transitions, 429 flow [2021-03-26 13:16:39,618 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=429, PETRI_PLACES=193, PETRI_TRANSITIONS=96} [2021-03-26 13:16:39,618 INFO L343 CegarLoopForPetriNet]: 192 programPoint places, 1 predicate places. [2021-03-26 13:16:39,618 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:39,618 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 193 places, 96 transitions, 429 flow [2021-03-26 13:16:39,619 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 193 places, 96 transitions, 429 flow [2021-03-26 13:16:39,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 96 transitions, 429 flow [2021-03-26 13:16:39,630 INFO L129 PetriNetUnfolder]: 0/96 cut-off events. [2021-03-26 13:16:39,631 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:39,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 96 events. 0/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 91 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2021-03-26 13:16:39,632 INFO L142 LiptonReduction]: Number of co-enabled transitions 4418 [2021-03-26 13:16:39,637 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:39,637 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:39,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 13:16:39,637 INFO L480 AbstractCegarLoop]: Abstraction has has 193 places, 96 transitions, 429 flow [2021-03-26 13:16:39,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:39,638 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:39,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:39,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-26 13:16:39,638 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:39,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:39,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1706992282, now seen corresponding path program 1 times [2021-03-26 13:16:39,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:39,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046999074] [2021-03-26 13:16:39,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:39,646 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:39,648 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:39,654 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:39,654 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:39,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-26 13:16:39,655 WARN L342 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:39,655 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2021-03-26 13:16:39,698 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:39,698 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:39,700 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:39,700 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:39,700 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:39,700 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:39,700 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:39,700 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:39,700 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:39,700 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:39,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 246 places, 149 transitions, 2794 flow [2021-03-26 13:16:39,736 INFO L129 PetriNetUnfolder]: 0/293 cut-off events. [2021-03-26 13:16:39,736 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:39,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1614 conditions, 293 events. 0/293 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 964 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-26 13:16:39,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 149 transitions, 2794 flow [2021-03-26 13:16:39,738 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 244 places, 147 transitions, 2790 flow [2021-03-26 13:16:39,739 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:39,739 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 147 transitions, 2790 flow [2021-03-26 13:16:39,739 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 147 transitions, 2790 flow [2021-03-26 13:16:39,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 244 places, 147 transitions, 2790 flow [2021-03-26 13:16:39,799 INFO L129 PetriNetUnfolder]: 0/195 cut-off events. [2021-03-26 13:16:39,799 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:39,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 195 events. 0/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 458 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-26 13:16:39,808 INFO L142 LiptonReduction]: Number of co-enabled transitions 13920 [2021-03-26 13:16:43,523 INFO L154 LiptonReduction]: Checked pairs total: 5736 [2021-03-26 13:16:43,523 INFO L156 LiptonReduction]: Total number of compositions: 48 [2021-03-26 13:16:43,524 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3785 [2021-03-26 13:16:43,524 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:43,524 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:43,524 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:43,524 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:43,524 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:43,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:43,525 INFO L82 PathProgramCache]: Analyzing trace with hash 157731, now seen corresponding path program 1 times [2021-03-26 13:16:43,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:43,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567463436] [2021-03-26 13:16:43,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:43,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:43,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:43,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567463436] [2021-03-26 13:16:43,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:43,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:43,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147749522] [2021-03-26 13:16:43,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:43,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:43,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:43,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:43,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 197 [2021-03-26 13:16:43,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 99 transitions, 2694 flow. Second operand has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:43,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:43,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 197 [2021-03-26 13:16:43,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:43,572 INFO L129 PetriNetUnfolder]: 0/98 cut-off events. [2021-03-26 13:16:43,572 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:43,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 98 events. 0/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 84 event pairs, 0 based on Foata normal form. 49/147 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-26 13:16:43,573 INFO L132 encePairwiseOnDemand]: 195/197 looper letters, 0 selfloop transitions, 1 changer transitions 0/98 dead transitions. [2021-03-26 13:16:43,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 98 transitions, 2694 flow [2021-03-26 13:16:43,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:43,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:43,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 584 transitions. [2021-03-26 13:16:43,573 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.988155668358714 [2021-03-26 13:16:43,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 584 transitions. [2021-03-26 13:16:43,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 584 transitions. [2021-03-26 13:16:43,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:43,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 584 transitions. [2021-03-26 13:16:43,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:43,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:43,575 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:43,575 INFO L185 Difference]: Start difference. First operand has 196 places, 99 transitions, 2694 flow. Second operand 3 states and 584 transitions. [2021-03-26 13:16:43,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 98 transitions, 2694 flow [2021-03-26 13:16:43,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 98 transitions, 438 flow, removed 1128 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:43,617 INFO L241 Difference]: Finished difference. Result has 197 places, 98 transitions, 438 flow [2021-03-26 13:16:43,618 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=197, PETRI_TRANSITIONS=98} [2021-03-26 13:16:43,618 INFO L343 CegarLoopForPetriNet]: 196 programPoint places, 1 predicate places. [2021-03-26 13:16:43,618 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:43,618 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 98 transitions, 438 flow [2021-03-26 13:16:43,618 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 98 transitions, 438 flow [2021-03-26 13:16:43,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 98 transitions, 438 flow [2021-03-26 13:16:43,631 INFO L129 PetriNetUnfolder]: 0/98 cut-off events. [2021-03-26 13:16:43,631 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:43,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 98 events. 0/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 94 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 0. Up to 49 conditions per place. [2021-03-26 13:16:43,633 INFO L142 LiptonReduction]: Number of co-enabled transitions 4608 [2021-03-26 13:16:43,638 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:43,638 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:43,638 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 13:16:43,638 INFO L480 AbstractCegarLoop]: Abstraction has has 197 places, 98 transitions, 438 flow [2021-03-26 13:16:43,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:43,639 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:43,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:43,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-26 13:16:43,639 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:43,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1429030512, now seen corresponding path program 1 times [2021-03-26 13:16:43,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:43,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107797940] [2021-03-26 13:16:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:43,649 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:43,650 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:43,657 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:43,657 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:43,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-26 13:16:43,657 WARN L342 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:43,657 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2021-03-26 13:16:43,705 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:43,705 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:43,706 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:43,706 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:43,706 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:43,706 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:43,706 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:43,706 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:43,706 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:43,706 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:43,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 251 places, 152 transitions, 2901 flow [2021-03-26 13:16:43,743 INFO L129 PetriNetUnfolder]: 0/299 cut-off events. [2021-03-26 13:16:43,744 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:43,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 299 events. 0/299 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 994 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-26 13:16:43,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 152 transitions, 2901 flow [2021-03-26 13:16:43,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 150 transitions, 2897 flow [2021-03-26 13:16:43,745 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:43,745 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 150 transitions, 2897 flow [2021-03-26 13:16:43,745 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 150 transitions, 2897 flow [2021-03-26 13:16:43,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 249 places, 150 transitions, 2897 flow [2021-03-26 13:16:43,771 INFO L129 PetriNetUnfolder]: 0/199 cut-off events. [2021-03-26 13:16:43,771 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:43,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 199 events. 0/199 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 548 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-26 13:16:43,780 INFO L142 LiptonReduction]: Number of co-enabled transitions 14504 [2021-03-26 13:16:48,005 INFO L154 LiptonReduction]: Checked pairs total: 5978 [2021-03-26 13:16:48,005 INFO L156 LiptonReduction]: Total number of compositions: 49 [2021-03-26 13:16:48,005 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4260 [2021-03-26 13:16:48,006 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:16:48,006 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:48,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:48,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:48,006 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:48,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:48,007 INFO L82 PathProgramCache]: Analyzing trace with hash 164131, now seen corresponding path program 1 times [2021-03-26 13:16:48,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:48,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075805803] [2021-03-26 13:16:48,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:48,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:48,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:48,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075805803] [2021-03-26 13:16:48,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:48,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:48,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747803285] [2021-03-26 13:16:48,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:48,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:48,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:48,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:48,021 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 201 [2021-03-26 13:16:48,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 101 transitions, 2799 flow. Second operand has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:48,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:48,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 201 [2021-03-26 13:16:48,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:48,046 INFO L129 PetriNetUnfolder]: 0/100 cut-off events. [2021-03-26 13:16:48,046 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:48,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 100 events. 0/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 101 event pairs, 0 based on Foata normal form. 50/150 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-26 13:16:48,047 INFO L132 encePairwiseOnDemand]: 199/201 looper letters, 0 selfloop transitions, 1 changer transitions 0/100 dead transitions. [2021-03-26 13:16:48,047 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 100 transitions, 2799 flow [2021-03-26 13:16:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:48,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2021-03-26 13:16:48,048 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.988391376451078 [2021-03-26 13:16:48,048 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2021-03-26 13:16:48,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2021-03-26 13:16:48,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:48,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2021-03-26 13:16:48,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:48,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:48,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:48,050 INFO L185 Difference]: Start difference. First operand has 200 places, 101 transitions, 2799 flow. Second operand 3 states and 596 transitions. [2021-03-26 13:16:48,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 100 transitions, 2799 flow [2021-03-26 13:16:48,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 100 transitions, 447 flow, removed 1176 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:48,091 INFO L241 Difference]: Finished difference. Result has 201 places, 100 transitions, 447 flow [2021-03-26 13:16:48,091 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=447, PETRI_PLACES=201, PETRI_TRANSITIONS=100} [2021-03-26 13:16:48,091 INFO L343 CegarLoopForPetriNet]: 200 programPoint places, 1 predicate places. [2021-03-26 13:16:48,091 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:48,092 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 100 transitions, 447 flow [2021-03-26 13:16:48,092 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 100 transitions, 447 flow [2021-03-26 13:16:48,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 201 places, 100 transitions, 447 flow [2021-03-26 13:16:48,103 INFO L129 PetriNetUnfolder]: 0/100 cut-off events. [2021-03-26 13:16:48,103 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:48,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 100 events. 0/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2021-03-26 13:16:48,105 INFO L142 LiptonReduction]: Number of co-enabled transitions 4802 [2021-03-26 13:16:48,109 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:48,109 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:48,109 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 13:16:48,109 INFO L480 AbstractCegarLoop]: Abstraction has has 201 places, 100 transitions, 447 flow [2021-03-26 13:16:48,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:48,110 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:48,110 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:48,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-26 13:16:48,110 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:48,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:48,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1177315567, now seen corresponding path program 1 times [2021-03-26 13:16:48,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:48,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327209014] [2021-03-26 13:16:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:48,120 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:48,122 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:48,128 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:48,128 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:48,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-26 13:16:48,129 WARN L342 ceAbstractionStarter]: 49 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:48,129 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 50 thread instances. [2021-03-26 13:16:48,178 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:48,179 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:48,179 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:48,179 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:48,179 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:48,179 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:48,179 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:48,179 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:48,179 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:48,179 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:48,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 256 places, 155 transitions, 3010 flow [2021-03-26 13:16:48,224 INFO L129 PetriNetUnfolder]: 0/305 cut-off events. [2021-03-26 13:16:48,224 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:48,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1731 conditions, 305 events. 0/305 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1016 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-26 13:16:48,225 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 155 transitions, 3010 flow [2021-03-26 13:16:48,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 153 transitions, 3006 flow [2021-03-26 13:16:48,227 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:48,227 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 153 transitions, 3006 flow [2021-03-26 13:16:48,227 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 153 transitions, 3006 flow [2021-03-26 13:16:48,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 254 places, 153 transitions, 3006 flow [2021-03-26 13:16:48,265 INFO L129 PetriNetUnfolder]: 0/203 cut-off events. [2021-03-26 13:16:48,265 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:48,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1629 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 646 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-26 13:16:48,277 INFO L142 LiptonReduction]: Number of co-enabled transitions 15100 [2021-03-26 13:16:52,556 INFO L154 LiptonReduction]: Checked pairs total: 6225 [2021-03-26 13:16:52,556 INFO L156 LiptonReduction]: Total number of compositions: 50 [2021-03-26 13:16:52,557 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4330 [2021-03-26 13:16:52,558 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:16:52,558 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:52,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:52,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:52,558 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:52,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:52,558 INFO L82 PathProgramCache]: Analyzing trace with hash 170659, now seen corresponding path program 1 times [2021-03-26 13:16:52,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:52,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251769454] [2021-03-26 13:16:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:52,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:52,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:52,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:52,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251769454] [2021-03-26 13:16:52,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:52,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:52,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567887676] [2021-03-26 13:16:52,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:52,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:52,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:52,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:52,572 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 205 [2021-03-26 13:16:52,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 103 transitions, 2906 flow. Second operand has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:52,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:52,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 205 [2021-03-26 13:16:52,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:52,597 INFO L129 PetriNetUnfolder]: 0/102 cut-off events. [2021-03-26 13:16:52,597 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:52,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1530 conditions, 102 events. 0/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 51/153 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-26 13:16:52,598 INFO L132 encePairwiseOnDemand]: 203/205 looper letters, 0 selfloop transitions, 1 changer transitions 0/102 dead transitions. [2021-03-26 13:16:52,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 102 transitions, 2906 flow [2021-03-26 13:16:52,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:52,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:52,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2021-03-26 13:16:52,599 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9886178861788618 [2021-03-26 13:16:52,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 608 transitions. [2021-03-26 13:16:52,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 608 transitions. [2021-03-26 13:16:52,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:52,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 608 transitions. [2021-03-26 13:16:52,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:52,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:52,600 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:52,601 INFO L185 Difference]: Start difference. First operand has 204 places, 103 transitions, 2906 flow. Second operand 3 states and 608 transitions. [2021-03-26 13:16:52,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 102 transitions, 2906 flow [2021-03-26 13:16:52,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 102 transitions, 456 flow, removed 1225 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:52,645 INFO L241 Difference]: Finished difference. Result has 205 places, 102 transitions, 456 flow [2021-03-26 13:16:52,645 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=205, PETRI_TRANSITIONS=102} [2021-03-26 13:16:52,645 INFO L343 CegarLoopForPetriNet]: 204 programPoint places, 1 predicate places. [2021-03-26 13:16:52,645 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:52,645 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 102 transitions, 456 flow [2021-03-26 13:16:52,646 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 102 transitions, 456 flow [2021-03-26 13:16:52,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 205 places, 102 transitions, 456 flow [2021-03-26 13:16:52,657 INFO L129 PetriNetUnfolder]: 0/102 cut-off events. [2021-03-26 13:16:52,657 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:52,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 102 events. 0/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 100 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 0. Up to 51 conditions per place. [2021-03-26 13:16:52,659 INFO L142 LiptonReduction]: Number of co-enabled transitions 5000 [2021-03-26 13:16:52,664 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:52,664 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:52,664 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 13:16:52,665 INFO L480 AbstractCegarLoop]: Abstraction has has 205 places, 102 transitions, 456 flow [2021-03-26 13:16:52,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:52,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:52,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:52,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-26 13:16:52,665 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:52,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:52,665 INFO L82 PathProgramCache]: Analyzing trace with hash 568827443, now seen corresponding path program 1 times [2021-03-26 13:16:52,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:52,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442842135] [2021-03-26 13:16:52,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:52,674 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:52,676 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:52,683 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:52,683 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:52,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-26 13:16:52,684 WARN L342 ceAbstractionStarter]: 50 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:52,684 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 51 thread instances. [2021-03-26 13:16:52,733 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:52,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:52,734 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:52,734 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:52,734 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:52,734 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:52,734 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:52,734 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:52,734 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:52,734 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:52,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 158 transitions, 3121 flow [2021-03-26 13:16:52,782 INFO L129 PetriNetUnfolder]: 0/311 cut-off events. [2021-03-26 13:16:52,783 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:52,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1791 conditions, 311 events. 0/311 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1045 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2021-03-26 13:16:52,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 158 transitions, 3121 flow [2021-03-26 13:16:52,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 156 transitions, 3117 flow [2021-03-26 13:16:52,785 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:52,785 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 259 places, 156 transitions, 3117 flow [2021-03-26 13:16:52,785 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 259 places, 156 transitions, 3117 flow [2021-03-26 13:16:52,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 259 places, 156 transitions, 3117 flow [2021-03-26 13:16:52,823 INFO L129 PetriNetUnfolder]: 0/207 cut-off events. [2021-03-26 13:16:52,823 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:52,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 207 events. 0/207 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 550 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2021-03-26 13:16:52,836 INFO L142 LiptonReduction]: Number of co-enabled transitions 15708 [2021-03-26 13:16:56,854 INFO L154 LiptonReduction]: Checked pairs total: 6477 [2021-03-26 13:16:56,854 INFO L156 LiptonReduction]: Total number of compositions: 51 [2021-03-26 13:16:56,854 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4069 [2021-03-26 13:16:56,855 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:16:56,855 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:56,855 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:56,855 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:16:56,855 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:56,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:56,855 INFO L82 PathProgramCache]: Analyzing trace with hash 177315, now seen corresponding path program 1 times [2021-03-26 13:16:56,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:56,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91612875] [2021-03-26 13:16:56,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:16:56,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:16:56,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:16:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:16:56,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91612875] [2021-03-26 13:16:56,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:16:56,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:16:56,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258746370] [2021-03-26 13:16:56,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:16:56,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:16:56,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:16:56,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:16:56,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 209 [2021-03-26 13:16:56,870 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 105 transitions, 3015 flow. Second operand has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:56,870 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:16:56,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 209 [2021-03-26 13:16:56,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:16:56,896 INFO L129 PetriNetUnfolder]: 0/104 cut-off events. [2021-03-26 13:16:56,896 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:56,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1586 conditions, 104 events. 0/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 107 event pairs, 0 based on Foata normal form. 52/156 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2021-03-26 13:16:56,897 INFO L132 encePairwiseOnDemand]: 207/209 looper letters, 0 selfloop transitions, 1 changer transitions 0/104 dead transitions. [2021-03-26 13:16:56,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 104 transitions, 3015 flow [2021-03-26 13:16:56,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:16:56,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:16:56,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 620 transitions. [2021-03-26 13:16:56,898 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.988835725677831 [2021-03-26 13:16:56,898 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 620 transitions. [2021-03-26 13:16:56,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 620 transitions. [2021-03-26 13:16:56,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:16:56,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 620 transitions. [2021-03-26 13:16:56,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:56,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:56,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:56,900 INFO L185 Difference]: Start difference. First operand has 208 places, 105 transitions, 3015 flow. Second operand 3 states and 620 transitions. [2021-03-26 13:16:56,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 104 transitions, 3015 flow [2021-03-26 13:16:56,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 104 transitions, 465 flow, removed 1275 selfloop flow, removed 0 redundant places. [2021-03-26 13:16:56,953 INFO L241 Difference]: Finished difference. Result has 209 places, 104 transitions, 465 flow [2021-03-26 13:16:56,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=465, PETRI_PLACES=209, PETRI_TRANSITIONS=104} [2021-03-26 13:16:56,954 INFO L343 CegarLoopForPetriNet]: 208 programPoint places, 1 predicate places. [2021-03-26 13:16:56,954 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:56,954 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 104 transitions, 465 flow [2021-03-26 13:16:56,954 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 104 transitions, 465 flow [2021-03-26 13:16:56,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 209 places, 104 transitions, 465 flow [2021-03-26 13:16:56,967 INFO L129 PetriNetUnfolder]: 0/104 cut-off events. [2021-03-26 13:16:56,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:56,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 104 events. 0/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 107 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 0. Up to 52 conditions per place. [2021-03-26 13:16:56,969 INFO L142 LiptonReduction]: Number of co-enabled transitions 5202 [2021-03-26 13:16:56,972 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:16:56,972 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:16:56,973 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 13:16:56,973 INFO L480 AbstractCegarLoop]: Abstraction has has 209 places, 104 transitions, 465 flow [2021-03-26 13:16:56,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:16:56,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:16:56,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:16:56,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-26 13:16:56,973 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:16:56,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:16:56,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1219012916, now seen corresponding path program 1 times [2021-03-26 13:16:56,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:16:56,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645673098] [2021-03-26 13:16:56,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:16:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:56,983 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:16:56,985 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:16:56,992 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:16:56,992 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:16:56,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-26 13:16:56,993 WARN L342 ceAbstractionStarter]: 51 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:16:56,993 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 52 thread instances. [2021-03-26 13:16:57,044 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:16:57,044 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:16:57,045 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:16:57,045 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:16:57,045 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:16:57,045 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:16:57,045 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:16:57,045 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:16:57,045 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:16:57,045 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:16:57,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 266 places, 161 transitions, 3234 flow [2021-03-26 13:16:57,092 INFO L129 PetriNetUnfolder]: 0/317 cut-off events. [2021-03-26 13:16:57,092 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:57,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1852 conditions, 317 events. 0/317 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1047 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2021-03-26 13:16:57,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 161 transitions, 3234 flow [2021-03-26 13:16:57,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 159 transitions, 3230 flow [2021-03-26 13:16:57,095 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:16:57,095 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 159 transitions, 3230 flow [2021-03-26 13:16:57,095 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 159 transitions, 3230 flow [2021-03-26 13:16:57,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 264 places, 159 transitions, 3230 flow [2021-03-26 13:16:57,135 INFO L129 PetriNetUnfolder]: 0/211 cut-off events. [2021-03-26 13:16:57,136 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:16:57,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1746 conditions, 211 events. 0/211 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 628 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2021-03-26 13:16:57,149 INFO L142 LiptonReduction]: Number of co-enabled transitions 16328 [2021-03-26 13:17:01,268 INFO L154 LiptonReduction]: Checked pairs total: 6734 [2021-03-26 13:17:01,268 INFO L156 LiptonReduction]: Total number of compositions: 52 [2021-03-26 13:17:01,269 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4174 [2021-03-26 13:17:01,269 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:17:01,270 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:01,270 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:01,270 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:01,270 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:01,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:01,270 INFO L82 PathProgramCache]: Analyzing trace with hash 184099, now seen corresponding path program 1 times [2021-03-26 13:17:01,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:01,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265508160] [2021-03-26 13:17:01,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:01,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:01,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:01,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265508160] [2021-03-26 13:17:01,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:01,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:01,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725823150] [2021-03-26 13:17:01,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:01,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:01,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:01,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:01,284 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 213 [2021-03-26 13:17:01,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 107 transitions, 3126 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:01,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:01,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 213 [2021-03-26 13:17:01,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:01,306 INFO L129 PetriNetUnfolder]: 0/106 cut-off events. [2021-03-26 13:17:01,307 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:01,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1643 conditions, 106 events. 0/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 124 event pairs, 0 based on Foata normal form. 53/159 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2021-03-26 13:17:01,307 INFO L132 encePairwiseOnDemand]: 211/213 looper letters, 0 selfloop transitions, 1 changer transitions 0/106 dead transitions. [2021-03-26 13:17:01,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 106 transitions, 3126 flow [2021-03-26 13:17:01,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:01,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:01,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 632 transitions. [2021-03-26 13:17:01,308 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9890453834115805 [2021-03-26 13:17:01,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 632 transitions. [2021-03-26 13:17:01,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 632 transitions. [2021-03-26 13:17:01,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:01,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 632 transitions. [2021-03-26 13:17:01,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:01,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:01,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:01,310 INFO L185 Difference]: Start difference. First operand has 212 places, 107 transitions, 3126 flow. Second operand 3 states and 632 transitions. [2021-03-26 13:17:01,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 106 transitions, 3126 flow [2021-03-26 13:17:01,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 106 transitions, 474 flow, removed 1326 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:01,366 INFO L241 Difference]: Finished difference. Result has 213 places, 106 transitions, 474 flow [2021-03-26 13:17:01,366 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=213, PETRI_TRANSITIONS=106} [2021-03-26 13:17:01,366 INFO L343 CegarLoopForPetriNet]: 212 programPoint places, 1 predicate places. [2021-03-26 13:17:01,366 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:01,367 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 106 transitions, 474 flow [2021-03-26 13:17:01,367 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 106 transitions, 474 flow [2021-03-26 13:17:01,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 213 places, 106 transitions, 474 flow [2021-03-26 13:17:01,376 INFO L129 PetriNetUnfolder]: 0/106 cut-off events. [2021-03-26 13:17:01,376 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:01,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 106 events. 0/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 102 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2021-03-26 13:17:01,378 INFO L142 LiptonReduction]: Number of co-enabled transitions 5408 [2021-03-26 13:17:01,382 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:01,382 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:01,382 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 13:17:01,383 INFO L480 AbstractCegarLoop]: Abstraction has has 213 places, 106 transitions, 474 flow [2021-03-26 13:17:01,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:01,383 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:01,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:01,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-26 13:17:01,383 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:01,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:01,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1650121738, now seen corresponding path program 1 times [2021-03-26 13:17:01,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:01,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320138761] [2021-03-26 13:17:01,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:01,392 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:01,394 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:01,401 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:01,401 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:01,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-26 13:17:01,401 WARN L342 ceAbstractionStarter]: 52 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:01,401 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 53 thread instances. [2021-03-26 13:17:01,463 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:01,463 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:01,464 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:01,464 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:01,464 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:01,464 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:01,464 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:01,464 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:01,464 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:01,464 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:01,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 271 places, 164 transitions, 3349 flow [2021-03-26 13:17:01,508 INFO L129 PetriNetUnfolder]: 0/323 cut-off events. [2021-03-26 13:17:01,508 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:01,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1914 conditions, 323 events. 0/323 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1066 event pairs, 0 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2021-03-26 13:17:01,508 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 164 transitions, 3349 flow [2021-03-26 13:17:01,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 269 places, 162 transitions, 3345 flow [2021-03-26 13:17:01,510 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:01,510 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 162 transitions, 3345 flow [2021-03-26 13:17:01,510 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 162 transitions, 3345 flow [2021-03-26 13:17:01,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 269 places, 162 transitions, 3345 flow [2021-03-26 13:17:01,546 INFO L129 PetriNetUnfolder]: 0/215 cut-off events. [2021-03-26 13:17:01,546 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:01,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1806 conditions, 215 events. 0/215 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 516 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2021-03-26 13:17:01,556 INFO L142 LiptonReduction]: Number of co-enabled transitions 16960 [2021-03-26 13:17:05,783 INFO L154 LiptonReduction]: Checked pairs total: 6996 [2021-03-26 13:17:05,783 INFO L156 LiptonReduction]: Total number of compositions: 53 [2021-03-26 13:17:05,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4273 [2021-03-26 13:17:05,784 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:17:05,784 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:05,785 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:05,785 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:05,785 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:05,785 INFO L82 PathProgramCache]: Analyzing trace with hash 191011, now seen corresponding path program 1 times [2021-03-26 13:17:05,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:05,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000468406] [2021-03-26 13:17:05,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:05,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:05,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:05,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000468406] [2021-03-26 13:17:05,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:05,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:05,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654735580] [2021-03-26 13:17:05,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:05,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:05,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:05,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:05,798 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 217 [2021-03-26 13:17:05,798 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 109 transitions, 3239 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:05,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:05,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 217 [2021-03-26 13:17:05,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:05,822 INFO L129 PetriNetUnfolder]: 0/108 cut-off events. [2021-03-26 13:17:05,822 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:05,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1701 conditions, 108 events. 0/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 103 event pairs, 0 based on Foata normal form. 54/162 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2021-03-26 13:17:05,822 INFO L132 encePairwiseOnDemand]: 215/217 looper letters, 0 selfloop transitions, 1 changer transitions 0/108 dead transitions. [2021-03-26 13:17:05,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 108 transitions, 3239 flow [2021-03-26 13:17:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:05,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:05,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-03-26 13:17:05,823 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.989247311827957 [2021-03-26 13:17:05,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-03-26 13:17:05,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-03-26 13:17:05,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:05,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-03-26 13:17:05,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:05,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:05,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:05,825 INFO L185 Difference]: Start difference. First operand has 216 places, 109 transitions, 3239 flow. Second operand 3 states and 644 transitions. [2021-03-26 13:17:05,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 108 transitions, 3239 flow [2021-03-26 13:17:05,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 108 transitions, 483 flow, removed 1378 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:05,869 INFO L241 Difference]: Finished difference. Result has 217 places, 108 transitions, 483 flow [2021-03-26 13:17:05,869 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=217, PETRI_TRANSITIONS=108} [2021-03-26 13:17:05,869 INFO L343 CegarLoopForPetriNet]: 216 programPoint places, 1 predicate places. [2021-03-26 13:17:05,869 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:05,870 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 108 transitions, 483 flow [2021-03-26 13:17:05,870 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 108 transitions, 483 flow [2021-03-26 13:17:05,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 108 transitions, 483 flow [2021-03-26 13:17:05,879 INFO L129 PetriNetUnfolder]: 0/108 cut-off events. [2021-03-26 13:17:05,880 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:05,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 108 events. 0/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 103 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 0. Up to 54 conditions per place. [2021-03-26 13:17:05,881 INFO L142 LiptonReduction]: Number of co-enabled transitions 5618 [2021-03-26 13:17:05,885 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:05,885 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:05,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 13:17:05,885 INFO L480 AbstractCegarLoop]: Abstraction has has 217 places, 108 transitions, 483 flow [2021-03-26 13:17:05,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:05,885 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:05,886 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:05,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-26 13:17:05,886 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:05,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:05,886 INFO L82 PathProgramCache]: Analyzing trace with hash 292165271, now seen corresponding path program 1 times [2021-03-26 13:17:05,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:05,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098765050] [2021-03-26 13:17:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:05,894 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:05,896 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:05,903 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:05,903 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:05,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-26 13:17:05,904 WARN L342 ceAbstractionStarter]: 53 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:05,904 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 54 thread instances. [2021-03-26 13:17:05,962 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:05,963 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:05,963 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:05,963 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:05,963 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:05,963 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:05,963 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:05,963 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:05,963 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:05,963 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:05,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 276 places, 167 transitions, 3466 flow [2021-03-26 13:17:06,018 INFO L129 PetriNetUnfolder]: 0/329 cut-off events. [2021-03-26 13:17:06,018 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:06,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1977 conditions, 329 events. 0/329 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1063 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 0. Up to 55 conditions per place. [2021-03-26 13:17:06,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 167 transitions, 3466 flow [2021-03-26 13:17:06,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 165 transitions, 3462 flow [2021-03-26 13:17:06,021 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:06,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 165 transitions, 3462 flow [2021-03-26 13:17:06,021 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 165 transitions, 3462 flow [2021-03-26 13:17:06,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 274 places, 165 transitions, 3462 flow [2021-03-26 13:17:06,062 INFO L129 PetriNetUnfolder]: 0/219 cut-off events. [2021-03-26 13:17:06,062 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:06,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 219 events. 0/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 692 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 0. Up to 55 conditions per place. [2021-03-26 13:17:06,073 INFO L142 LiptonReduction]: Number of co-enabled transitions 17604 [2021-03-26 13:17:10,309 INFO L154 LiptonReduction]: Checked pairs total: 7263 [2021-03-26 13:17:10,309 INFO L156 LiptonReduction]: Total number of compositions: 54 [2021-03-26 13:17:10,309 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4289 [2021-03-26 13:17:10,310 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:17:10,310 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:10,310 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:10,310 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:10,310 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:10,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:10,310 INFO L82 PathProgramCache]: Analyzing trace with hash 198051, now seen corresponding path program 1 times [2021-03-26 13:17:10,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:10,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209918041] [2021-03-26 13:17:10,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:10,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:10,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:10,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209918041] [2021-03-26 13:17:10,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:10,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:10,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534590343] [2021-03-26 13:17:10,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:10,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:10,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:10,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:10,322 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 221 [2021-03-26 13:17:10,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 111 transitions, 3354 flow. Second operand has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:10,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:10,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 221 [2021-03-26 13:17:10,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:10,344 INFO L129 PetriNetUnfolder]: 0/110 cut-off events. [2021-03-26 13:17:10,344 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:10,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1760 conditions, 110 events. 0/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 108 event pairs, 0 based on Foata normal form. 55/165 useless extension candidates. Maximal degree in co-relation 0. Up to 55 conditions per place. [2021-03-26 13:17:10,344 INFO L132 encePairwiseOnDemand]: 219/221 looper letters, 0 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2021-03-26 13:17:10,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 110 transitions, 3354 flow [2021-03-26 13:17:10,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:10,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 656 transitions. [2021-03-26 13:17:10,345 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9894419306184012 [2021-03-26 13:17:10,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 656 transitions. [2021-03-26 13:17:10,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 656 transitions. [2021-03-26 13:17:10,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:10,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 656 transitions. [2021-03-26 13:17:10,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:10,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:10,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:10,346 INFO L185 Difference]: Start difference. First operand has 220 places, 111 transitions, 3354 flow. Second operand 3 states and 656 transitions. [2021-03-26 13:17:10,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 110 transitions, 3354 flow [2021-03-26 13:17:10,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 110 transitions, 492 flow, removed 1431 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:10,396 INFO L241 Difference]: Finished difference. Result has 221 places, 110 transitions, 492 flow [2021-03-26 13:17:10,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=221, PETRI_TRANSITIONS=110} [2021-03-26 13:17:10,397 INFO L343 CegarLoopForPetriNet]: 220 programPoint places, 1 predicate places. [2021-03-26 13:17:10,397 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:10,397 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 221 places, 110 transitions, 492 flow [2021-03-26 13:17:10,397 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 221 places, 110 transitions, 492 flow [2021-03-26 13:17:10,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 110 transitions, 492 flow [2021-03-26 13:17:10,412 INFO L129 PetriNetUnfolder]: 0/110 cut-off events. [2021-03-26 13:17:10,412 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:10,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 110 events. 0/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 102 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 0. Up to 55 conditions per place. [2021-03-26 13:17:10,414 INFO L142 LiptonReduction]: Number of co-enabled transitions 5832 [2021-03-26 13:17:10,420 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:10,420 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:10,420 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 13:17:10,420 INFO L480 AbstractCegarLoop]: Abstraction has has 221 places, 110 transitions, 492 flow [2021-03-26 13:17:10,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:10,420 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:10,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:10,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-26 13:17:10,421 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:10,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:10,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1780032071, now seen corresponding path program 1 times [2021-03-26 13:17:10,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:10,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443296692] [2021-03-26 13:17:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:10,431 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:10,433 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:10,440 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:10,440 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:10,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-26 13:17:10,441 WARN L342 ceAbstractionStarter]: 54 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:10,441 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 55 thread instances. [2021-03-26 13:17:10,494 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:10,494 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:10,496 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:10,496 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:10,496 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:10,496 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:10,496 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:10,496 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:10,496 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:10,496 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:10,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 281 places, 170 transitions, 3585 flow [2021-03-26 13:17:10,551 INFO L129 PetriNetUnfolder]: 0/335 cut-off events. [2021-03-26 13:17:10,551 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:10,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2041 conditions, 335 events. 0/335 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1101 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2021-03-26 13:17:10,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 170 transitions, 3585 flow [2021-03-26 13:17:10,553 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 168 transitions, 3581 flow [2021-03-26 13:17:10,553 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:10,554 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 279 places, 168 transitions, 3581 flow [2021-03-26 13:17:10,554 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 279 places, 168 transitions, 3581 flow [2021-03-26 13:17:10,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 279 places, 168 transitions, 3581 flow [2021-03-26 13:17:10,597 INFO L129 PetriNetUnfolder]: 0/223 cut-off events. [2021-03-26 13:17:10,597 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:10,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1929 conditions, 223 events. 0/223 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 625 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2021-03-26 13:17:10,613 INFO L142 LiptonReduction]: Number of co-enabled transitions 18260 [2021-03-26 13:17:15,433 INFO L154 LiptonReduction]: Checked pairs total: 7535 [2021-03-26 13:17:15,433 INFO L156 LiptonReduction]: Total number of compositions: 55 [2021-03-26 13:17:15,433 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4880 [2021-03-26 13:17:15,436 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:17:15,436 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:15,436 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:15,436 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:15,436 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:15,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:15,436 INFO L82 PathProgramCache]: Analyzing trace with hash 205219, now seen corresponding path program 1 times [2021-03-26 13:17:15,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:15,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526382148] [2021-03-26 13:17:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:15,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:15,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:15,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526382148] [2021-03-26 13:17:15,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:15,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:15,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30695428] [2021-03-26 13:17:15,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:15,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:15,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:15,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:15,450 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 225 [2021-03-26 13:17:15,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 113 transitions, 3471 flow. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:15,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:15,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 225 [2021-03-26 13:17:15,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:15,476 INFO L129 PetriNetUnfolder]: 0/112 cut-off events. [2021-03-26 13:17:15,476 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:15,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1820 conditions, 112 events. 0/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 105 event pairs, 0 based on Foata normal form. 56/168 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2021-03-26 13:17:15,477 INFO L132 encePairwiseOnDemand]: 223/225 looper letters, 0 selfloop transitions, 1 changer transitions 0/112 dead transitions. [2021-03-26 13:17:15,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 112 transitions, 3471 flow [2021-03-26 13:17:15,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:15,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2021-03-26 13:17:15,477 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9896296296296296 [2021-03-26 13:17:15,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 668 transitions. [2021-03-26 13:17:15,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 668 transitions. [2021-03-26 13:17:15,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:15,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 668 transitions. [2021-03-26 13:17:15,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:15,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:15,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:15,478 INFO L185 Difference]: Start difference. First operand has 224 places, 113 transitions, 3471 flow. Second operand 3 states and 668 transitions. [2021-03-26 13:17:15,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 112 transitions, 3471 flow [2021-03-26 13:17:15,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 112 transitions, 501 flow, removed 1485 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:15,525 INFO L241 Difference]: Finished difference. Result has 225 places, 112 transitions, 501 flow [2021-03-26 13:17:15,525 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=501, PETRI_PLACES=225, PETRI_TRANSITIONS=112} [2021-03-26 13:17:15,525 INFO L343 CegarLoopForPetriNet]: 224 programPoint places, 1 predicate places. [2021-03-26 13:17:15,525 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:15,525 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 112 transitions, 501 flow [2021-03-26 13:17:15,525 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 112 transitions, 501 flow [2021-03-26 13:17:15,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 112 transitions, 501 flow [2021-03-26 13:17:15,538 INFO L129 PetriNetUnfolder]: 0/112 cut-off events. [2021-03-26 13:17:15,538 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:15,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 112 events. 0/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 101 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2021-03-26 13:17:15,541 INFO L142 LiptonReduction]: Number of co-enabled transitions 6050 [2021-03-26 13:17:15,547 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:15,547 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:15,547 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 13:17:15,547 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 112 transitions, 501 flow [2021-03-26 13:17:15,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:15,547 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:15,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:15,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-26 13:17:15,548 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:15,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:15,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1407430542, now seen corresponding path program 1 times [2021-03-26 13:17:15,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:15,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162619222] [2021-03-26 13:17:15,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:15,559 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:15,561 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:15,569 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:15,569 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:15,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-26 13:17:15,569 WARN L342 ceAbstractionStarter]: 55 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:15,569 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 56 thread instances. [2021-03-26 13:17:15,623 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:15,623 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:15,623 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:15,624 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:15,624 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:15,624 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:15,624 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:15,624 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:15,624 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:15,624 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:15,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 286 places, 173 transitions, 3706 flow [2021-03-26 13:17:15,682 INFO L129 PetriNetUnfolder]: 0/341 cut-off events. [2021-03-26 13:17:15,682 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:15,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2106 conditions, 341 events. 0/341 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1102 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 0. Up to 57 conditions per place. [2021-03-26 13:17:15,683 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 173 transitions, 3706 flow [2021-03-26 13:17:15,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 284 places, 171 transitions, 3702 flow [2021-03-26 13:17:15,685 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:15,685 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 284 places, 171 transitions, 3702 flow [2021-03-26 13:17:15,685 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 284 places, 171 transitions, 3702 flow [2021-03-26 13:17:15,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 284 places, 171 transitions, 3702 flow [2021-03-26 13:17:15,731 INFO L129 PetriNetUnfolder]: 0/227 cut-off events. [2021-03-26 13:17:15,731 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:15,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 227 events. 0/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 606 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 0. Up to 57 conditions per place. [2021-03-26 13:17:15,748 INFO L142 LiptonReduction]: Number of co-enabled transitions 18928 [2021-03-26 13:17:20,399 INFO L154 LiptonReduction]: Checked pairs total: 7812 [2021-03-26 13:17:20,399 INFO L156 LiptonReduction]: Total number of compositions: 56 [2021-03-26 13:17:20,399 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4714 [2021-03-26 13:17:20,400 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:17:20,400 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:20,400 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:20,400 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:20,400 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:20,400 INFO L82 PathProgramCache]: Analyzing trace with hash 212515, now seen corresponding path program 1 times [2021-03-26 13:17:20,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:20,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733501802] [2021-03-26 13:17:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:20,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:20,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:20,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733501802] [2021-03-26 13:17:20,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:20,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:20,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807034407] [2021-03-26 13:17:20,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:20,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:20,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:20,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:20,414 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 229 [2021-03-26 13:17:20,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 115 transitions, 3590 flow. Second operand has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:20,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:20,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 229 [2021-03-26 13:17:20,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:20,569 INFO L129 PetriNetUnfolder]: 0/114 cut-off events. [2021-03-26 13:17:20,569 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:20,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1881 conditions, 114 events. 0/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 104 event pairs, 0 based on Foata normal form. 57/171 useless extension candidates. Maximal degree in co-relation 0. Up to 57 conditions per place. [2021-03-26 13:17:20,570 INFO L132 encePairwiseOnDemand]: 227/229 looper letters, 0 selfloop transitions, 1 changer transitions 0/114 dead transitions. [2021-03-26 13:17:20,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 114 transitions, 3590 flow [2021-03-26 13:17:20,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:20,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 680 transitions. [2021-03-26 13:17:20,571 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9898107714701602 [2021-03-26 13:17:20,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 680 transitions. [2021-03-26 13:17:20,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 680 transitions. [2021-03-26 13:17:20,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:20,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 680 transitions. [2021-03-26 13:17:20,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:20,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:20,575 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:20,575 INFO L185 Difference]: Start difference. First operand has 228 places, 115 transitions, 3590 flow. Second operand 3 states and 680 transitions. [2021-03-26 13:17:20,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 114 transitions, 3590 flow [2021-03-26 13:17:20,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 114 transitions, 510 flow, removed 1540 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:20,624 INFO L241 Difference]: Finished difference. Result has 229 places, 114 transitions, 510 flow [2021-03-26 13:17:20,624 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=229, PETRI_TRANSITIONS=114} [2021-03-26 13:17:20,624 INFO L343 CegarLoopForPetriNet]: 228 programPoint places, 1 predicate places. [2021-03-26 13:17:20,624 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:20,624 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 114 transitions, 510 flow [2021-03-26 13:17:20,624 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 114 transitions, 510 flow [2021-03-26 13:17:20,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 114 transitions, 510 flow [2021-03-26 13:17:20,640 INFO L129 PetriNetUnfolder]: 0/114 cut-off events. [2021-03-26 13:17:20,640 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:20,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 114 events. 0/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 112 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 0. Up to 57 conditions per place. [2021-03-26 13:17:20,642 INFO L142 LiptonReduction]: Number of co-enabled transitions 6272 [2021-03-26 13:17:20,648 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:20,649 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:20,649 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 13:17:20,649 INFO L480 AbstractCegarLoop]: Abstraction has has 229 places, 114 transitions, 510 flow [2021-03-26 13:17:20,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:20,649 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:20,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:20,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-26 13:17:20,649 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:20,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:20,650 INFO L82 PathProgramCache]: Analyzing trace with hash -396701316, now seen corresponding path program 1 times [2021-03-26 13:17:20,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:20,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173788651] [2021-03-26 13:17:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:20,661 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:20,663 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:20,673 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:20,673 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:20,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-26 13:17:20,673 WARN L342 ceAbstractionStarter]: 56 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:20,674 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 57 thread instances. [2021-03-26 13:17:20,729 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:20,729 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:20,729 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:20,729 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:20,729 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:20,729 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:20,730 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:20,730 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:20,730 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:20,730 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:20,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 291 places, 176 transitions, 3829 flow [2021-03-26 13:17:20,790 INFO L129 PetriNetUnfolder]: 0/347 cut-off events. [2021-03-26 13:17:20,790 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:20,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2172 conditions, 347 events. 0/347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1100 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 0. Up to 58 conditions per place. [2021-03-26 13:17:20,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 291 places, 176 transitions, 3829 flow [2021-03-26 13:17:20,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 174 transitions, 3825 flow [2021-03-26 13:17:20,792 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:20,793 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 174 transitions, 3825 flow [2021-03-26 13:17:20,793 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 174 transitions, 3825 flow [2021-03-26 13:17:20,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 289 places, 174 transitions, 3825 flow [2021-03-26 13:17:20,840 INFO L129 PetriNetUnfolder]: 0/231 cut-off events. [2021-03-26 13:17:20,840 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:20,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2056 conditions, 231 events. 0/231 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 676 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 0. Up to 58 conditions per place. [2021-03-26 13:17:20,858 INFO L142 LiptonReduction]: Number of co-enabled transitions 19608 [2021-03-26 13:17:25,563 INFO L154 LiptonReduction]: Checked pairs total: 8094 [2021-03-26 13:17:25,564 INFO L156 LiptonReduction]: Total number of compositions: 57 [2021-03-26 13:17:25,564 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4772 [2021-03-26 13:17:25,564 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:17:25,565 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:25,565 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:25,565 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:25,565 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:25,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:25,565 INFO L82 PathProgramCache]: Analyzing trace with hash 219939, now seen corresponding path program 1 times [2021-03-26 13:17:25,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:25,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132963709] [2021-03-26 13:17:25,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:25,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:25,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:25,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132963709] [2021-03-26 13:17:25,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:25,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:25,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884810243] [2021-03-26 13:17:25,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:25,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:25,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:25,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:25,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 233 [2021-03-26 13:17:25,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 117 transitions, 3711 flow. Second operand has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:25,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:25,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 233 [2021-03-26 13:17:25,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:25,605 INFO L129 PetriNetUnfolder]: 0/116 cut-off events. [2021-03-26 13:17:25,605 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:25,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1943 conditions, 116 events. 0/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 111 event pairs, 0 based on Foata normal form. 58/174 useless extension candidates. Maximal degree in co-relation 0. Up to 58 conditions per place. [2021-03-26 13:17:25,606 INFO L132 encePairwiseOnDemand]: 231/233 looper letters, 0 selfloop transitions, 1 changer transitions 0/116 dead transitions. [2021-03-26 13:17:25,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 116 transitions, 3711 flow [2021-03-26 13:17:25,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:25,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions. [2021-03-26 13:17:25,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9899856938483548 [2021-03-26 13:17:25,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 692 transitions. [2021-03-26 13:17:25,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 692 transitions. [2021-03-26 13:17:25,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:25,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 692 transitions. [2021-03-26 13:17:25,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:25,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:25,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:25,608 INFO L185 Difference]: Start difference. First operand has 232 places, 117 transitions, 3711 flow. Second operand 3 states and 692 transitions. [2021-03-26 13:17:25,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 116 transitions, 3711 flow [2021-03-26 13:17:25,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 116 transitions, 519 flow, removed 1596 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:25,659 INFO L241 Difference]: Finished difference. Result has 233 places, 116 transitions, 519 flow [2021-03-26 13:17:25,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=519, PETRI_PLACES=233, PETRI_TRANSITIONS=116} [2021-03-26 13:17:25,659 INFO L343 CegarLoopForPetriNet]: 232 programPoint places, 1 predicate places. [2021-03-26 13:17:25,659 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:25,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 116 transitions, 519 flow [2021-03-26 13:17:25,660 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 116 transitions, 519 flow [2021-03-26 13:17:25,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 233 places, 116 transitions, 519 flow [2021-03-26 13:17:25,676 INFO L129 PetriNetUnfolder]: 0/116 cut-off events. [2021-03-26 13:17:25,677 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:25,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 116 events. 0/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 115 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 0. Up to 58 conditions per place. [2021-03-26 13:17:25,806 INFO L142 LiptonReduction]: Number of co-enabled transitions 6498 [2021-03-26 13:17:25,812 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:25,812 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:25,812 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 153 [2021-03-26 13:17:25,812 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 116 transitions, 519 flow [2021-03-26 13:17:25,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:25,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:25,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:25,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-26 13:17:25,813 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:25,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:25,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1672576605, now seen corresponding path program 1 times [2021-03-26 13:17:25,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:25,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719293864] [2021-03-26 13:17:25,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:25,840 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:25,842 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:25,851 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:25,851 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:25,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-26 13:17:25,851 WARN L342 ceAbstractionStarter]: 57 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:25,851 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 58 thread instances. [2021-03-26 13:17:25,910 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:25,911 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:25,911 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:25,911 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:25,911 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:25,911 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:25,911 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:25,911 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:25,911 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:25,911 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:25,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 296 places, 179 transitions, 3954 flow [2021-03-26 13:17:25,969 INFO L129 PetriNetUnfolder]: 0/353 cut-off events. [2021-03-26 13:17:25,969 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:25,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 353 events. 0/353 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1158 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2021-03-26 13:17:25,969 INFO L82 GeneralOperation]: Start removeDead. Operand has 296 places, 179 transitions, 3954 flow [2021-03-26 13:17:25,970 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 177 transitions, 3950 flow [2021-03-26 13:17:25,971 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:25,971 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 294 places, 177 transitions, 3950 flow [2021-03-26 13:17:25,971 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 294 places, 177 transitions, 3950 flow [2021-03-26 13:17:25,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 294 places, 177 transitions, 3950 flow [2021-03-26 13:17:26,012 INFO L129 PetriNetUnfolder]: 0/235 cut-off events. [2021-03-26 13:17:26,012 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:26,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 235 events. 0/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 636 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2021-03-26 13:17:26,028 INFO L142 LiptonReduction]: Number of co-enabled transitions 20300 [2021-03-26 13:17:31,717 INFO L154 LiptonReduction]: Checked pairs total: 8381 [2021-03-26 13:17:31,718 INFO L156 LiptonReduction]: Total number of compositions: 58 [2021-03-26 13:17:31,718 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5747 [2021-03-26 13:17:31,719 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:17:31,720 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:31,720 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:31,720 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:31,720 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:31,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:31,720 INFO L82 PathProgramCache]: Analyzing trace with hash 227491, now seen corresponding path program 1 times [2021-03-26 13:17:31,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:31,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841323401] [2021-03-26 13:17:31,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:31,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:31,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:31,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841323401] [2021-03-26 13:17:31,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:31,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:31,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329910299] [2021-03-26 13:17:31,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:31,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:31,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:31,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:31,778 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 237 [2021-03-26 13:17:31,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 119 transitions, 3834 flow. Second operand has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:31,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:31,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 237 [2021-03-26 13:17:31,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:31,818 INFO L129 PetriNetUnfolder]: 0/118 cut-off events. [2021-03-26 13:17:31,819 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:31,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2006 conditions, 118 events. 0/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 100 event pairs, 0 based on Foata normal form. 59/177 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2021-03-26 13:17:31,819 INFO L132 encePairwiseOnDemand]: 235/237 looper letters, 0 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2021-03-26 13:17:31,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 118 transitions, 3834 flow [2021-03-26 13:17:31,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:31,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:31,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 704 transitions. [2021-03-26 13:17:31,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9901547116736991 [2021-03-26 13:17:31,820 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 704 transitions. [2021-03-26 13:17:31,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 704 transitions. [2021-03-26 13:17:31,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:31,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 704 transitions. [2021-03-26 13:17:31,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:31,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:31,822 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:31,822 INFO L185 Difference]: Start difference. First operand has 236 places, 119 transitions, 3834 flow. Second operand 3 states and 704 transitions. [2021-03-26 13:17:31,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 118 transitions, 3834 flow [2021-03-26 13:17:31,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 118 transitions, 528 flow, removed 1653 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:31,899 INFO L241 Difference]: Finished difference. Result has 237 places, 118 transitions, 528 flow [2021-03-26 13:17:31,900 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=528, PETRI_PLACES=237, PETRI_TRANSITIONS=118} [2021-03-26 13:17:31,900 INFO L343 CegarLoopForPetriNet]: 236 programPoint places, 1 predicate places. [2021-03-26 13:17:31,900 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:31,900 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 118 transitions, 528 flow [2021-03-26 13:17:31,900 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 118 transitions, 528 flow [2021-03-26 13:17:31,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 118 transitions, 528 flow [2021-03-26 13:17:31,916 INFO L129 PetriNetUnfolder]: 0/118 cut-off events. [2021-03-26 13:17:31,916 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:31,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 118 events. 0/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 112 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2021-03-26 13:17:31,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 6728 [2021-03-26 13:17:31,925 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:31,925 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:31,925 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 13:17:31,926 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 118 transitions, 528 flow [2021-03-26 13:17:31,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:31,926 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:31,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:31,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-26 13:17:31,926 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:31,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:31,926 INFO L82 PathProgramCache]: Analyzing trace with hash 874251583, now seen corresponding path program 1 times [2021-03-26 13:17:31,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:31,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863849974] [2021-03-26 13:17:31,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:31,939 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:31,942 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:31,951 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:31,951 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:31,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-26 13:17:31,951 WARN L342 ceAbstractionStarter]: 58 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:31,951 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 59 thread instances. [2021-03-26 13:17:32,015 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:32,015 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:32,016 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:32,016 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:32,016 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:32,016 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:32,016 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:32,016 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:32,016 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:32,016 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:32,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 301 places, 182 transitions, 4081 flow [2021-03-26 13:17:32,082 INFO L129 PetriNetUnfolder]: 0/359 cut-off events. [2021-03-26 13:17:32,083 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:32,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2307 conditions, 359 events. 0/359 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1189 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 0. Up to 60 conditions per place. [2021-03-26 13:17:32,083 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 182 transitions, 4081 flow [2021-03-26 13:17:32,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 180 transitions, 4077 flow [2021-03-26 13:17:32,085 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:32,085 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 299 places, 180 transitions, 4077 flow [2021-03-26 13:17:32,085 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 299 places, 180 transitions, 4077 flow [2021-03-26 13:17:32,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 299 places, 180 transitions, 4077 flow [2021-03-26 13:17:32,136 INFO L129 PetriNetUnfolder]: 0/239 cut-off events. [2021-03-26 13:17:32,136 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:32,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 239 events. 0/239 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 719 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 0. Up to 60 conditions per place. [2021-03-26 13:17:32,154 INFO L142 LiptonReduction]: Number of co-enabled transitions 21004 [2021-03-26 13:17:38,035 INFO L154 LiptonReduction]: Checked pairs total: 8673 [2021-03-26 13:17:38,035 INFO L156 LiptonReduction]: Total number of compositions: 59 [2021-03-26 13:17:38,036 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5951 [2021-03-26 13:17:38,036 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:17:38,036 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:38,036 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:38,036 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:38,036 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:38,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:38,037 INFO L82 PathProgramCache]: Analyzing trace with hash 235171, now seen corresponding path program 1 times [2021-03-26 13:17:38,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:38,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814579059] [2021-03-26 13:17:38,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:38,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:38,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:38,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814579059] [2021-03-26 13:17:38,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:38,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:38,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350480726] [2021-03-26 13:17:38,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:38,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:38,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:38,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:38,051 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 241 [2021-03-26 13:17:38,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 121 transitions, 3959 flow. Second operand has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:38,051 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:38,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 241 [2021-03-26 13:17:38,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:38,087 INFO L129 PetriNetUnfolder]: 0/120 cut-off events. [2021-03-26 13:17:38,087 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:38,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 120 events. 0/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 111 event pairs, 0 based on Foata normal form. 60/180 useless extension candidates. Maximal degree in co-relation 0. Up to 60 conditions per place. [2021-03-26 13:17:38,088 INFO L132 encePairwiseOnDemand]: 239/241 looper letters, 0 selfloop transitions, 1 changer transitions 0/120 dead transitions. [2021-03-26 13:17:38,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 120 transitions, 3959 flow [2021-03-26 13:17:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:38,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:38,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 716 transitions. [2021-03-26 13:17:38,089 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9903181189488244 [2021-03-26 13:17:38,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 716 transitions. [2021-03-26 13:17:38,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 716 transitions. [2021-03-26 13:17:38,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:38,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 716 transitions. [2021-03-26 13:17:38,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:38,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:38,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:38,091 INFO L185 Difference]: Start difference. First operand has 240 places, 121 transitions, 3959 flow. Second operand 3 states and 716 transitions. [2021-03-26 13:17:38,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 120 transitions, 3959 flow [2021-03-26 13:17:38,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 120 transitions, 537 flow, removed 1711 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:38,159 INFO L241 Difference]: Finished difference. Result has 241 places, 120 transitions, 537 flow [2021-03-26 13:17:38,159 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=537, PETRI_PLACES=241, PETRI_TRANSITIONS=120} [2021-03-26 13:17:38,159 INFO L343 CegarLoopForPetriNet]: 240 programPoint places, 1 predicate places. [2021-03-26 13:17:38,159 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:38,160 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 120 transitions, 537 flow [2021-03-26 13:17:38,160 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 120 transitions, 537 flow [2021-03-26 13:17:38,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 120 transitions, 537 flow [2021-03-26 13:17:38,172 INFO L129 PetriNetUnfolder]: 0/120 cut-off events. [2021-03-26 13:17:38,172 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:38,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 120 events. 0/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 119 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 0. Up to 60 conditions per place. [2021-03-26 13:17:38,174 INFO L142 LiptonReduction]: Number of co-enabled transitions 6962 [2021-03-26 13:17:38,179 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:38,179 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:38,180 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-26 13:17:38,180 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 120 transitions, 537 flow [2021-03-26 13:17:38,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:38,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:38,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:38,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-26 13:17:38,180 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:38,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:38,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1755309480, now seen corresponding path program 1 times [2021-03-26 13:17:38,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:38,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304462639] [2021-03-26 13:17:38,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:38,196 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:38,199 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:38,209 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:38,209 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:38,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-26 13:17:38,210 WARN L342 ceAbstractionStarter]: 59 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:38,210 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 60 thread instances. [2021-03-26 13:17:38,281 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:38,282 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:38,282 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:38,282 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:38,282 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:38,282 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:38,282 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:38,282 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:38,282 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:38,282 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:38,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 306 places, 185 transitions, 4210 flow [2021-03-26 13:17:38,349 INFO L129 PetriNetUnfolder]: 0/365 cut-off events. [2021-03-26 13:17:38,349 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:38,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2376 conditions, 365 events. 0/365 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1233 event pairs, 0 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 0. Up to 61 conditions per place. [2021-03-26 13:17:38,349 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 185 transitions, 4210 flow [2021-03-26 13:17:38,351 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 183 transitions, 4206 flow [2021-03-26 13:17:38,351 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:38,351 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 183 transitions, 4206 flow [2021-03-26 13:17:38,351 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 183 transitions, 4206 flow [2021-03-26 13:17:38,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 304 places, 183 transitions, 4206 flow [2021-03-26 13:17:38,393 INFO L129 PetriNetUnfolder]: 0/243 cut-off events. [2021-03-26 13:17:38,393 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:38,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2254 conditions, 243 events. 0/243 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 690 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 0. Up to 61 conditions per place. [2021-03-26 13:17:38,408 INFO L142 LiptonReduction]: Number of co-enabled transitions 21720 [2021-03-26 13:17:44,071 INFO L154 LiptonReduction]: Checked pairs total: 8970 [2021-03-26 13:17:44,071 INFO L156 LiptonReduction]: Total number of compositions: 60 [2021-03-26 13:17:44,071 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5720 [2021-03-26 13:17:44,072 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:17:44,072 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:44,072 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:44,072 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:44,072 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:44,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:44,072 INFO L82 PathProgramCache]: Analyzing trace with hash 242979, now seen corresponding path program 1 times [2021-03-26 13:17:44,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:44,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622643272] [2021-03-26 13:17:44,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:44,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:44,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:44,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622643272] [2021-03-26 13:17:44,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:44,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:44,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765992162] [2021-03-26 13:17:44,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:44,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:44,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:44,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:44,087 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 245 [2021-03-26 13:17:44,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 123 transitions, 4086 flow. Second operand has 3 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:44,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:44,088 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 245 [2021-03-26 13:17:44,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:44,118 INFO L129 PetriNetUnfolder]: 0/122 cut-off events. [2021-03-26 13:17:44,119 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:44,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2135 conditions, 122 events. 0/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 118 event pairs, 0 based on Foata normal form. 61/183 useless extension candidates. Maximal degree in co-relation 0. Up to 61 conditions per place. [2021-03-26 13:17:44,119 INFO L132 encePairwiseOnDemand]: 243/245 looper letters, 0 selfloop transitions, 1 changer transitions 0/122 dead transitions. [2021-03-26 13:17:44,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 122 transitions, 4086 flow [2021-03-26 13:17:44,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:44,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 728 transitions. [2021-03-26 13:17:44,120 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9904761904761905 [2021-03-26 13:17:44,120 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 728 transitions. [2021-03-26 13:17:44,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 728 transitions. [2021-03-26 13:17:44,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:44,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 728 transitions. [2021-03-26 13:17:44,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:44,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:44,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:44,121 INFO L185 Difference]: Start difference. First operand has 244 places, 123 transitions, 4086 flow. Second operand 3 states and 728 transitions. [2021-03-26 13:17:44,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 122 transitions, 4086 flow [2021-03-26 13:17:44,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 122 transitions, 546 flow, removed 1770 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:44,186 INFO L241 Difference]: Finished difference. Result has 245 places, 122 transitions, 546 flow [2021-03-26 13:17:44,187 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=546, PETRI_PLACES=245, PETRI_TRANSITIONS=122} [2021-03-26 13:17:44,187 INFO L343 CegarLoopForPetriNet]: 244 programPoint places, 1 predicate places. [2021-03-26 13:17:44,187 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:44,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 122 transitions, 546 flow [2021-03-26 13:17:44,187 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 122 transitions, 546 flow [2021-03-26 13:17:44,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 245 places, 122 transitions, 546 flow [2021-03-26 13:17:44,199 INFO L129 PetriNetUnfolder]: 0/122 cut-off events. [2021-03-26 13:17:44,200 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:44,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 122 events. 0/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 114 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 0. Up to 61 conditions per place. [2021-03-26 13:17:44,202 INFO L142 LiptonReduction]: Number of co-enabled transitions 7200 [2021-03-26 13:17:44,207 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:44,207 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:44,207 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 13:17:44,207 INFO L480 AbstractCegarLoop]: Abstraction has has 245 places, 122 transitions, 546 flow [2021-03-26 13:17:44,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:44,207 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:44,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:44,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-26 13:17:44,208 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:44,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:44,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1829601534, now seen corresponding path program 1 times [2021-03-26 13:17:44,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:44,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776152103] [2021-03-26 13:17:44,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:44,219 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:44,222 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:44,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:44,231 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:44,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-26 13:17:44,232 WARN L342 ceAbstractionStarter]: 60 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:44,232 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 61 thread instances. [2021-03-26 13:17:44,293 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:44,293 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:44,294 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:44,294 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:44,294 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:44,294 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:44,294 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:44,294 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:44,294 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:44,294 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:44,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 311 places, 188 transitions, 4341 flow [2021-03-26 13:17:44,348 INFO L129 PetriNetUnfolder]: 0/371 cut-off events. [2021-03-26 13:17:44,348 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:44,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2446 conditions, 371 events. 0/371 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1193 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 0. Up to 62 conditions per place. [2021-03-26 13:17:44,348 INFO L82 GeneralOperation]: Start removeDead. Operand has 311 places, 188 transitions, 4341 flow [2021-03-26 13:17:44,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 186 transitions, 4337 flow [2021-03-26 13:17:44,350 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:44,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 309 places, 186 transitions, 4337 flow [2021-03-26 13:17:44,350 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 309 places, 186 transitions, 4337 flow [2021-03-26 13:17:44,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 309 places, 186 transitions, 4337 flow [2021-03-26 13:17:44,402 INFO L129 PetriNetUnfolder]: 0/247 cut-off events. [2021-03-26 13:17:44,402 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:44,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2322 conditions, 247 events. 0/247 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 683 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 0. Up to 62 conditions per place. [2021-03-26 13:17:44,416 INFO L142 LiptonReduction]: Number of co-enabled transitions 22448 [2021-03-26 13:17:46,867 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-03-26 13:17:50,894 INFO L154 LiptonReduction]: Checked pairs total: 9272 [2021-03-26 13:17:50,894 INFO L156 LiptonReduction]: Total number of compositions: 61 [2021-03-26 13:17:50,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6544 [2021-03-26 13:17:50,912 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:17:50,912 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:50,912 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:50,912 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:50,912 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:50,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:50,913 INFO L82 PathProgramCache]: Analyzing trace with hash 250915, now seen corresponding path program 1 times [2021-03-26 13:17:50,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:50,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083192257] [2021-03-26 13:17:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:50,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:50,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:50,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:50,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083192257] [2021-03-26 13:17:50,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:50,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:50,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162765076] [2021-03-26 13:17:50,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:50,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:50,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:50,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:50,936 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 249 [2021-03-26 13:17:50,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 125 transitions, 4215 flow. Second operand has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:50,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:50,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 249 [2021-03-26 13:17:50,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:50,976 INFO L129 PetriNetUnfolder]: 0/124 cut-off events. [2021-03-26 13:17:50,977 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:50,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2201 conditions, 124 events. 0/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 135 event pairs, 0 based on Foata normal form. 62/186 useless extension candidates. Maximal degree in co-relation 0. Up to 62 conditions per place. [2021-03-26 13:17:50,977 INFO L132 encePairwiseOnDemand]: 247/249 looper letters, 0 selfloop transitions, 1 changer transitions 0/124 dead transitions. [2021-03-26 13:17:50,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 124 transitions, 4215 flow [2021-03-26 13:17:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:50,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:50,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 740 transitions. [2021-03-26 13:17:50,978 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9906291834002677 [2021-03-26 13:17:50,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 740 transitions. [2021-03-26 13:17:50,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 740 transitions. [2021-03-26 13:17:50,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:50,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 740 transitions. [2021-03-26 13:17:50,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:50,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 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) [2021-03-26 13:17:50,980 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 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) [2021-03-26 13:17:50,980 INFO L185 Difference]: Start difference. First operand has 248 places, 125 transitions, 4215 flow. Second operand 3 states and 740 transitions. [2021-03-26 13:17:50,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 124 transitions, 4215 flow [2021-03-26 13:17:51,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 124 transitions, 555 flow, removed 1830 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:51,076 INFO L241 Difference]: Finished difference. Result has 249 places, 124 transitions, 555 flow [2021-03-26 13:17:51,076 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=555, PETRI_PLACES=249, PETRI_TRANSITIONS=124} [2021-03-26 13:17:51,076 INFO L343 CegarLoopForPetriNet]: 248 programPoint places, 1 predicate places. [2021-03-26 13:17:51,076 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:51,076 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 124 transitions, 555 flow [2021-03-26 13:17:51,076 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 124 transitions, 555 flow [2021-03-26 13:17:51,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 249 places, 124 transitions, 555 flow [2021-03-26 13:17:51,093 INFO L129 PetriNetUnfolder]: 0/124 cut-off events. [2021-03-26 13:17:51,093 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:51,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 124 events. 0/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 123 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 0. Up to 62 conditions per place. [2021-03-26 13:17:51,096 INFO L142 LiptonReduction]: Number of co-enabled transitions 7442 [2021-03-26 13:17:51,102 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:51,102 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:51,102 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-26 13:17:51,103 INFO L480 AbstractCegarLoop]: Abstraction has has 249 places, 124 transitions, 555 flow [2021-03-26 13:17:51,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:51,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:51,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:51,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-26 13:17:51,103 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:51,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:51,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1408131485, now seen corresponding path program 1 times [2021-03-26 13:17:51,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:51,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916669292] [2021-03-26 13:17:51,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:51,121 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:51,124 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:51,138 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:51,138 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:51,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-26 13:17:51,138 WARN L342 ceAbstractionStarter]: 61 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:51,139 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 62 thread instances. [2021-03-26 13:17:51,198 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:51,198 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:51,199 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:51,199 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:51,199 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:51,199 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:51,199 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:51,199 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:51,199 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:51,199 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:51,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 316 places, 191 transitions, 4474 flow [2021-03-26 13:17:51,288 INFO L129 PetriNetUnfolder]: 0/377 cut-off events. [2021-03-26 13:17:51,288 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:51,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2517 conditions, 377 events. 0/377 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1230 event pairs, 0 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 0. Up to 63 conditions per place. [2021-03-26 13:17:51,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 316 places, 191 transitions, 4474 flow [2021-03-26 13:17:51,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 314 places, 189 transitions, 4470 flow [2021-03-26 13:17:51,291 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:51,291 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 314 places, 189 transitions, 4470 flow [2021-03-26 13:17:51,291 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 314 places, 189 transitions, 4470 flow [2021-03-26 13:17:51,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 314 places, 189 transitions, 4470 flow [2021-03-26 13:17:51,345 INFO L129 PetriNetUnfolder]: 0/251 cut-off events. [2021-03-26 13:17:51,345 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:51,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 251 events. 0/251 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 787 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 0. Up to 63 conditions per place. [2021-03-26 13:17:51,361 INFO L142 LiptonReduction]: Number of co-enabled transitions 23188 [2021-03-26 13:17:57,864 INFO L154 LiptonReduction]: Checked pairs total: 9579 [2021-03-26 13:17:57,864 INFO L156 LiptonReduction]: Total number of compositions: 62 [2021-03-26 13:17:57,864 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6573 [2021-03-26 13:17:57,865 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:17:57,865 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:57,865 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:57,865 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:17:57,865 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:57,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:57,865 INFO L82 PathProgramCache]: Analyzing trace with hash 258979, now seen corresponding path program 1 times [2021-03-26 13:17:57,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:57,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128916283] [2021-03-26 13:17:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:57,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:57,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:17:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:17:57,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128916283] [2021-03-26 13:17:57,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:57,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:17:57,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718034853] [2021-03-26 13:17:57,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:57,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:57,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:57,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:57,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 253 [2021-03-26 13:17:57,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 127 transitions, 4346 flow. Second operand has 3 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 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) [2021-03-26 13:17:57,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:57,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 253 [2021-03-26 13:17:57,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:57,916 INFO L129 PetriNetUnfolder]: 0/126 cut-off events. [2021-03-26 13:17:57,916 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:57,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2268 conditions, 126 events. 0/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 126 event pairs, 0 based on Foata normal form. 63/189 useless extension candidates. Maximal degree in co-relation 0. Up to 63 conditions per place. [2021-03-26 13:17:57,917 INFO L132 encePairwiseOnDemand]: 251/253 looper letters, 0 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2021-03-26 13:17:57,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 126 transitions, 4346 flow [2021-03-26 13:17:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:57,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 752 transitions. [2021-03-26 13:17:57,918 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9907773386034255 [2021-03-26 13:17:57,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 752 transitions. [2021-03-26 13:17:57,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 752 transitions. [2021-03-26 13:17:57,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:57,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 752 transitions. [2021-03-26 13:17:57,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 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) [2021-03-26 13:17:57,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:57,919 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:57,919 INFO L185 Difference]: Start difference. First operand has 252 places, 127 transitions, 4346 flow. Second operand 3 states and 752 transitions. [2021-03-26 13:17:57,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 126 transitions, 4346 flow [2021-03-26 13:17:57,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 126 transitions, 564 flow, removed 1891 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:58,000 INFO L241 Difference]: Finished difference. Result has 253 places, 126 transitions, 564 flow [2021-03-26 13:17:58,000 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=253, PETRI_TRANSITIONS=126} [2021-03-26 13:17:58,000 INFO L343 CegarLoopForPetriNet]: 252 programPoint places, 1 predicate places. [2021-03-26 13:17:58,000 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:58,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 126 transitions, 564 flow [2021-03-26 13:17:58,000 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 126 transitions, 564 flow [2021-03-26 13:17:58,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 253 places, 126 transitions, 564 flow [2021-03-26 13:17:58,013 INFO L129 PetriNetUnfolder]: 0/126 cut-off events. [2021-03-26 13:17:58,013 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:58,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 126 events. 0/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 122 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 0. Up to 63 conditions per place. [2021-03-26 13:17:58,015 INFO L142 LiptonReduction]: Number of co-enabled transitions 7688 [2021-03-26 13:17:58,021 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:17:58,021 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:58,021 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-26 13:17:58,021 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 126 transitions, 564 flow [2021-03-26 13:17:58,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 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) [2021-03-26 13:17:58,021 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:58,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:58,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-26 13:17:58,021 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:58,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:58,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1519600837, now seen corresponding path program 1 times [2021-03-26 13:17:58,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:58,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083436683] [2021-03-26 13:17:58,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:58,033 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:58,034 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:58,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:58,044 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:58,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-26 13:17:58,045 WARN L342 ceAbstractionStarter]: 62 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:58,045 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 63 thread instances. [2021-03-26 13:17:58,108 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:58,108 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:17:58,109 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:58,109 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:58,109 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:58,109 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:58,109 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:58,109 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:58,109 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:58,109 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:58,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 321 places, 194 transitions, 4609 flow [2021-03-26 13:17:58,185 INFO L129 PetriNetUnfolder]: 0/383 cut-off events. [2021-03-26 13:17:58,186 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:58,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2589 conditions, 383 events. 0/383 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1401 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2021-03-26 13:17:58,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 194 transitions, 4609 flow [2021-03-26 13:17:58,188 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 319 places, 192 transitions, 4605 flow [2021-03-26 13:17:58,188 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:58,188 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 319 places, 192 transitions, 4605 flow [2021-03-26 13:17:58,189 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 319 places, 192 transitions, 4605 flow [2021-03-26 13:17:58,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 319 places, 192 transitions, 4605 flow [2021-03-26 13:17:58,247 INFO L129 PetriNetUnfolder]: 0/255 cut-off events. [2021-03-26 13:17:58,247 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:58,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2461 conditions, 255 events. 0/255 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 689 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2021-03-26 13:17:58,269 INFO L142 LiptonReduction]: Number of co-enabled transitions 23940 [2021-03-26 13:18:05,801 INFO L154 LiptonReduction]: Checked pairs total: 9891 [2021-03-26 13:18:05,801 INFO L156 LiptonReduction]: Total number of compositions: 63 [2021-03-26 13:18:05,801 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7613 [2021-03-26 13:18:05,802 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:18:05,802 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:05,802 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:05,802 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:18:05,802 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:05,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:05,803 INFO L82 PathProgramCache]: Analyzing trace with hash 267171, now seen corresponding path program 1 times [2021-03-26 13:18:05,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:05,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657928156] [2021-03-26 13:18:05,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:18:05,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:18:05,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:18:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:18:05,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657928156] [2021-03-26 13:18:05,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:18:05,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:18:05,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820526092] [2021-03-26 13:18:05,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:18:05,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:18:05,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:18:05,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:18:05,825 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 257 [2021-03-26 13:18:05,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 129 transitions, 4479 flow. Second operand has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:05,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:18:05,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 257 [2021-03-26 13:18:05,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:18:05,865 INFO L129 PetriNetUnfolder]: 0/128 cut-off events. [2021-03-26 13:18:05,865 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:05,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 128 events. 0/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 123 event pairs, 0 based on Foata normal form. 64/192 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2021-03-26 13:18:05,866 INFO L132 encePairwiseOnDemand]: 255/257 looper letters, 0 selfloop transitions, 1 changer transitions 0/128 dead transitions. [2021-03-26 13:18:05,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 128 transitions, 4479 flow [2021-03-26 13:18:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:18:05,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:18:05,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 764 transitions. [2021-03-26 13:18:05,866 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9909208819714657 [2021-03-26 13:18:05,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 764 transitions. [2021-03-26 13:18:05,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 764 transitions. [2021-03-26 13:18:05,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:18:05,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 764 transitions. [2021-03-26 13:18:05,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:05,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:05,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 257.0) internal successors, (1028), 4 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:05,868 INFO L185 Difference]: Start difference. First operand has 256 places, 129 transitions, 4479 flow. Second operand 3 states and 764 transitions. [2021-03-26 13:18:05,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 128 transitions, 4479 flow [2021-03-26 13:18:05,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 128 transitions, 573 flow, removed 1953 selfloop flow, removed 0 redundant places. [2021-03-26 13:18:05,984 INFO L241 Difference]: Finished difference. Result has 257 places, 128 transitions, 573 flow [2021-03-26 13:18:05,984 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=257, PETRI_TRANSITIONS=128} [2021-03-26 13:18:05,984 INFO L343 CegarLoopForPetriNet]: 256 programPoint places, 1 predicate places. [2021-03-26 13:18:05,984 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:05,984 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 128 transitions, 573 flow [2021-03-26 13:18:05,984 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 128 transitions, 573 flow [2021-03-26 13:18:05,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 257 places, 128 transitions, 573 flow [2021-03-26 13:18:06,004 INFO L129 PetriNetUnfolder]: 0/128 cut-off events. [2021-03-26 13:18:06,004 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:06,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 128 events. 0/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 111 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 0. Up to 64 conditions per place. [2021-03-26 13:18:06,007 INFO L142 LiptonReduction]: Number of co-enabled transitions 7938 [2021-03-26 13:18:06,014 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:18:06,014 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:18:06,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 13:18:06,015 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 128 transitions, 573 flow [2021-03-26 13:18:06,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:06,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:06,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:18:06,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-26 13:18:06,015 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:06,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:06,016 INFO L82 PathProgramCache]: Analyzing trace with hash -2027780994, now seen corresponding path program 1 times [2021-03-26 13:18:06,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:06,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359701622] [2021-03-26 13:18:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:06,028 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:06,030 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:06,041 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:18:06,041 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:18:06,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-26 13:18:06,042 WARN L342 ceAbstractionStarter]: 63 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:18:06,042 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 64 thread instances. [2021-03-26 13:18:06,109 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:18:06,109 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:18:06,110 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:18:06,110 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:18:06,110 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:18:06,110 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:18:06,110 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:18:06,110 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:18:06,110 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:18:06,110 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:18:06,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 326 places, 197 transitions, 4746 flow [2021-03-26 13:18:06,191 INFO L129 PetriNetUnfolder]: 0/389 cut-off events. [2021-03-26 13:18:06,191 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:06,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2662 conditions, 389 events. 0/389 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1407 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 0. Up to 65 conditions per place. [2021-03-26 13:18:06,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 326 places, 197 transitions, 4746 flow [2021-03-26 13:18:06,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 195 transitions, 4742 flow [2021-03-26 13:18:06,194 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:06,194 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 195 transitions, 4742 flow [2021-03-26 13:18:06,194 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 195 transitions, 4742 flow [2021-03-26 13:18:06,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 324 places, 195 transitions, 4742 flow [2021-03-26 13:18:06,262 INFO L129 PetriNetUnfolder]: 0/259 cut-off events. [2021-03-26 13:18:06,263 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:06,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2532 conditions, 259 events. 0/259 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 701 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 0. Up to 65 conditions per place. [2021-03-26 13:18:06,287 INFO L142 LiptonReduction]: Number of co-enabled transitions 24704 [2021-03-26 13:18:13,679 INFO L154 LiptonReduction]: Checked pairs total: 10208 [2021-03-26 13:18:13,679 INFO L156 LiptonReduction]: Total number of compositions: 64 [2021-03-26 13:18:13,679 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7485 [2021-03-26 13:18:13,680 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:18:13,680 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:13,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:13,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:18:13,680 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:13,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:13,680 INFO L82 PathProgramCache]: Analyzing trace with hash 275491, now seen corresponding path program 1 times [2021-03-26 13:18:13,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:13,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175801428] [2021-03-26 13:18:13,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:18:13,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:18:13,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:18:13,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:18:13,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175801428] [2021-03-26 13:18:13,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:18:13,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:18:13,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831300986] [2021-03-26 13:18:13,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:18:13,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:18:13,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:18:13,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:18:13,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 261 [2021-03-26 13:18:13,699 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 131 transitions, 4614 flow. Second operand has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:13,699 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:18:13,699 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 261 [2021-03-26 13:18:13,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:18:13,742 INFO L129 PetriNetUnfolder]: 0/130 cut-off events. [2021-03-26 13:18:13,743 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:13,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2405 conditions, 130 events. 0/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 150 event pairs, 0 based on Foata normal form. 65/195 useless extension candidates. Maximal degree in co-relation 0. Up to 65 conditions per place. [2021-03-26 13:18:13,743 INFO L132 encePairwiseOnDemand]: 259/261 looper letters, 0 selfloop transitions, 1 changer transitions 0/130 dead transitions. [2021-03-26 13:18:13,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 130 transitions, 4614 flow [2021-03-26 13:18:13,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:18:13,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:18:13,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 776 transitions. [2021-03-26 13:18:13,744 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9910600255427842 [2021-03-26 13:18:13,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 776 transitions. [2021-03-26 13:18:13,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 776 transitions. [2021-03-26 13:18:13,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:18:13,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 776 transitions. [2021-03-26 13:18:13,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:13,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:13,746 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:13,746 INFO L185 Difference]: Start difference. First operand has 260 places, 131 transitions, 4614 flow. Second operand 3 states and 776 transitions. [2021-03-26 13:18:13,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 130 transitions, 4614 flow [2021-03-26 13:18:13,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 130 transitions, 582 flow, removed 2016 selfloop flow, removed 0 redundant places. [2021-03-26 13:18:13,853 INFO L241 Difference]: Finished difference. Result has 261 places, 130 transitions, 582 flow [2021-03-26 13:18:13,853 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=261, PETRI_TRANSITIONS=130} [2021-03-26 13:18:13,853 INFO L343 CegarLoopForPetriNet]: 260 programPoint places, 1 predicate places. [2021-03-26 13:18:13,853 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:13,854 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 130 transitions, 582 flow [2021-03-26 13:18:13,854 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 130 transitions, 582 flow [2021-03-26 13:18:13,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 130 transitions, 582 flow [2021-03-26 13:18:13,871 INFO L129 PetriNetUnfolder]: 0/130 cut-off events. [2021-03-26 13:18:13,871 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:13,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 130 events. 0/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 128 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 0. Up to 65 conditions per place. [2021-03-26 13:18:13,874 INFO L142 LiptonReduction]: Number of co-enabled transitions 8192 [2021-03-26 13:18:13,882 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:18:13,883 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:18:13,883 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 13:18:13,883 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 130 transitions, 582 flow [2021-03-26 13:18:13,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:13,883 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:13,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:18:13,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-26 13:18:13,884 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:13,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:13,884 INFO L82 PathProgramCache]: Analyzing trace with hash -438281080, now seen corresponding path program 1 times [2021-03-26 13:18:13,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:13,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390349909] [2021-03-26 13:18:13,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:13,899 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:13,901 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:13,912 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:18:13,912 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:18:13,912 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-26 13:18:13,912 WARN L342 ceAbstractionStarter]: 64 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:18:13,912 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 65 thread instances. [2021-03-26 13:18:13,987 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:18:13,987 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:18:13,988 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:18:13,988 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:18:13,988 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:18:13,988 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:18:13,988 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:18:13,988 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:18:13,988 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:18:13,988 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:18:13,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 331 places, 200 transitions, 4885 flow [2021-03-26 13:18:14,075 INFO L129 PetriNetUnfolder]: 0/395 cut-off events. [2021-03-26 13:18:14,075 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:14,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2736 conditions, 395 events. 0/395 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1471 event pairs, 0 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 0. Up to 66 conditions per place. [2021-03-26 13:18:14,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 331 places, 200 transitions, 4885 flow [2021-03-26 13:18:14,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 198 transitions, 4881 flow [2021-03-26 13:18:14,079 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:14,079 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 198 transitions, 4881 flow [2021-03-26 13:18:14,079 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 198 transitions, 4881 flow [2021-03-26 13:18:14,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 329 places, 198 transitions, 4881 flow [2021-03-26 13:18:14,149 INFO L129 PetriNetUnfolder]: 0/263 cut-off events. [2021-03-26 13:18:14,149 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:14,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2604 conditions, 263 events. 0/263 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 735 event pairs, 0 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 0. Up to 66 conditions per place. [2021-03-26 13:18:14,174 INFO L142 LiptonReduction]: Number of co-enabled transitions 25480 [2021-03-26 13:18:21,477 INFO L154 LiptonReduction]: Checked pairs total: 10530 [2021-03-26 13:18:21,478 INFO L156 LiptonReduction]: Total number of compositions: 65 [2021-03-26 13:18:21,478 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7399 [2021-03-26 13:18:21,479 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:18:21,479 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:21,479 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:21,479 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:18:21,479 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:21,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:21,479 INFO L82 PathProgramCache]: Analyzing trace with hash 283939, now seen corresponding path program 1 times [2021-03-26 13:18:21,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:21,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348653717] [2021-03-26 13:18:21,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:18:21,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:18:21,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:18:21,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:18:21,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348653717] [2021-03-26 13:18:21,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:18:21,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:18:21,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306384562] [2021-03-26 13:18:21,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:18:21,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:18:21,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:18:21,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:18:21,494 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 265 [2021-03-26 13:18:21,494 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 133 transitions, 4751 flow. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:21,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:18:21,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 265 [2021-03-26 13:18:21,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:18:21,525 INFO L129 PetriNetUnfolder]: 0/132 cut-off events. [2021-03-26 13:18:21,526 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:21,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 132 events. 0/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 127 event pairs, 0 based on Foata normal form. 66/198 useless extension candidates. Maximal degree in co-relation 0. Up to 66 conditions per place. [2021-03-26 13:18:21,526 INFO L132 encePairwiseOnDemand]: 263/265 looper letters, 0 selfloop transitions, 1 changer transitions 0/132 dead transitions. [2021-03-26 13:18:21,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 132 transitions, 4751 flow [2021-03-26 13:18:21,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:18:21,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:18:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2021-03-26 13:18:21,527 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9911949685534591 [2021-03-26 13:18:21,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 788 transitions. [2021-03-26 13:18:21,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 788 transitions. [2021-03-26 13:18:21,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:18:21,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 788 transitions. [2021-03-26 13:18:21,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:21,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:21,528 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:21,528 INFO L185 Difference]: Start difference. First operand has 264 places, 133 transitions, 4751 flow. Second operand 3 states and 788 transitions. [2021-03-26 13:18:21,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 132 transitions, 4751 flow [2021-03-26 13:18:21,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 132 transitions, 591 flow, removed 2080 selfloop flow, removed 0 redundant places. [2021-03-26 13:18:21,623 INFO L241 Difference]: Finished difference. Result has 265 places, 132 transitions, 591 flow [2021-03-26 13:18:21,623 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=265, PETRI_TRANSITIONS=132} [2021-03-26 13:18:21,623 INFO L343 CegarLoopForPetriNet]: 264 programPoint places, 1 predicate places. [2021-03-26 13:18:21,623 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:21,623 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 132 transitions, 591 flow [2021-03-26 13:18:21,623 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 132 transitions, 591 flow [2021-03-26 13:18:21,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 265 places, 132 transitions, 591 flow [2021-03-26 13:18:21,638 INFO L129 PetriNetUnfolder]: 0/132 cut-off events. [2021-03-26 13:18:21,638 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:21,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 132 events. 0/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 127 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 0. Up to 66 conditions per place. [2021-03-26 13:18:21,640 INFO L142 LiptonReduction]: Number of co-enabled transitions 8450 [2021-03-26 13:18:21,646 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:18:21,646 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:18:21,646 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 13:18:21,646 INFO L480 AbstractCegarLoop]: Abstraction has has 265 places, 132 transitions, 591 flow [2021-03-26 13:18:21,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:21,647 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:21,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:18:21,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-26 13:18:21,647 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:21,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:21,647 INFO L82 PathProgramCache]: Analyzing trace with hash 19023529, now seen corresponding path program 1 times [2021-03-26 13:18:21,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:21,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283734929] [2021-03-26 13:18:21,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:21,658 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:21,659 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:21,668 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:18:21,669 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:18:21,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-26 13:18:21,669 WARN L342 ceAbstractionStarter]: 65 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:18:21,669 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 66 thread instances. [2021-03-26 13:18:21,744 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:18:21,745 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:18:21,745 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:18:21,745 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:18:21,745 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:18:21,745 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:18:21,745 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:18:21,745 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:18:21,745 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:18:21,745 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:18:21,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 336 places, 203 transitions, 5026 flow [2021-03-26 13:18:21,819 INFO L129 PetriNetUnfolder]: 0/401 cut-off events. [2021-03-26 13:18:21,819 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:21,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2811 conditions, 401 events. 0/401 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1541 event pairs, 0 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 0. Up to 67 conditions per place. [2021-03-26 13:18:21,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 203 transitions, 5026 flow [2021-03-26 13:18:21,821 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 334 places, 201 transitions, 5022 flow [2021-03-26 13:18:21,821 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:21,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 334 places, 201 transitions, 5022 flow [2021-03-26 13:18:21,821 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 334 places, 201 transitions, 5022 flow [2021-03-26 13:18:21,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 334 places, 201 transitions, 5022 flow [2021-03-26 13:18:21,870 INFO L129 PetriNetUnfolder]: 0/267 cut-off events. [2021-03-26 13:18:21,870 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:21,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2677 conditions, 267 events. 0/267 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 846 event pairs, 0 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 0. Up to 67 conditions per place. [2021-03-26 13:18:21,888 INFO L142 LiptonReduction]: Number of co-enabled transitions 26268 [2021-03-26 13:18:24,833 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-03-26 13:18:30,885 INFO L154 LiptonReduction]: Checked pairs total: 10857 [2021-03-26 13:18:30,885 INFO L156 LiptonReduction]: Total number of compositions: 66 [2021-03-26 13:18:30,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9064 [2021-03-26 13:18:30,886 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:18:30,886 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:30,886 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:30,886 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:18:30,886 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:30,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:30,886 INFO L82 PathProgramCache]: Analyzing trace with hash 292515, now seen corresponding path program 1 times [2021-03-26 13:18:30,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:30,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851543957] [2021-03-26 13:18:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:18:30,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:18:30,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:18:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:18:30,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851543957] [2021-03-26 13:18:30,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:18:30,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:18:30,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511792699] [2021-03-26 13:18:30,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:18:30,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:18:30,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:18:30,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:18:30,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 269 [2021-03-26 13:18:30,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 135 transitions, 4890 flow. Second operand has 3 states, 3 states have (on average 266.6666666666667) internal successors, (800), 3 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:30,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:18:30,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 269 [2021-03-26 13:18:30,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:18:30,940 INFO L129 PetriNetUnfolder]: 0/134 cut-off events. [2021-03-26 13:18:30,940 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:30,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2546 conditions, 134 events. 0/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 146 event pairs, 0 based on Foata normal form. 67/201 useless extension candidates. Maximal degree in co-relation 0. Up to 67 conditions per place. [2021-03-26 13:18:30,940 INFO L132 encePairwiseOnDemand]: 267/269 looper letters, 0 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2021-03-26 13:18:30,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 134 transitions, 4890 flow [2021-03-26 13:18:30,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:18:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:18:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2021-03-26 13:18:30,941 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9913258983890955 [2021-03-26 13:18:30,941 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 800 transitions. [2021-03-26 13:18:30,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 800 transitions. [2021-03-26 13:18:30,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:18:30,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 800 transitions. [2021-03-26 13:18:30,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.6666666666667) internal successors, (800), 3 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:30,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:30,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:30,943 INFO L185 Difference]: Start difference. First operand has 268 places, 135 transitions, 4890 flow. Second operand 3 states and 800 transitions. [2021-03-26 13:18:30,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 134 transitions, 4890 flow [2021-03-26 13:18:31,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 134 transitions, 600 flow, removed 2145 selfloop flow, removed 0 redundant places. [2021-03-26 13:18:31,074 INFO L241 Difference]: Finished difference. Result has 269 places, 134 transitions, 600 flow [2021-03-26 13:18:31,074 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=269, PETRI_TRANSITIONS=134} [2021-03-26 13:18:31,074 INFO L343 CegarLoopForPetriNet]: 268 programPoint places, 1 predicate places. [2021-03-26 13:18:31,074 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:31,074 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 134 transitions, 600 flow [2021-03-26 13:18:31,075 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 134 transitions, 600 flow [2021-03-26 13:18:31,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 269 places, 134 transitions, 600 flow [2021-03-26 13:18:31,093 INFO L129 PetriNetUnfolder]: 0/134 cut-off events. [2021-03-26 13:18:31,093 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:31,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 134 events. 0/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 126 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 0. Up to 67 conditions per place. [2021-03-26 13:18:31,097 INFO L142 LiptonReduction]: Number of co-enabled transitions 8712 [2021-03-26 13:18:31,104 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:18:31,105 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:18:31,105 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 13:18:31,105 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 134 transitions, 600 flow [2021-03-26 13:18:31,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 266.6666666666667) internal successors, (800), 3 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:31,105 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:31,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:18:31,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-26 13:18:31,105 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:31,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:31,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1713949771, now seen corresponding path program 1 times [2021-03-26 13:18:31,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:31,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915753549] [2021-03-26 13:18:31,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:31,119 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:31,122 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:31,132 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:18:31,132 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:18:31,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-26 13:18:31,133 WARN L342 ceAbstractionStarter]: 66 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:18:31,133 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 67 thread instances. [2021-03-26 13:18:31,239 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:18:31,240 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:18:31,240 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:18:31,240 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:18:31,240 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:18:31,240 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:18:31,240 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:18:31,241 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:18:31,241 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:18:31,241 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:18:31,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 341 places, 206 transitions, 5169 flow [2021-03-26 13:18:31,324 INFO L129 PetriNetUnfolder]: 0/407 cut-off events. [2021-03-26 13:18:31,325 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:31,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2887 conditions, 407 events. 0/407 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1498 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 0. Up to 68 conditions per place. [2021-03-26 13:18:31,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 206 transitions, 5169 flow [2021-03-26 13:18:31,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 339 places, 204 transitions, 5165 flow [2021-03-26 13:18:31,327 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:31,328 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 339 places, 204 transitions, 5165 flow [2021-03-26 13:18:31,328 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 339 places, 204 transitions, 5165 flow [2021-03-26 13:18:31,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 339 places, 204 transitions, 5165 flow [2021-03-26 13:18:31,396 INFO L129 PetriNetUnfolder]: 0/271 cut-off events. [2021-03-26 13:18:31,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:31,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2751 conditions, 271 events. 0/271 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 848 event pairs, 0 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 0. Up to 68 conditions per place. [2021-03-26 13:18:31,422 INFO L142 LiptonReduction]: Number of co-enabled transitions 27068 [2021-03-26 13:18:39,742 INFO L154 LiptonReduction]: Checked pairs total: 11189 [2021-03-26 13:18:39,742 INFO L156 LiptonReduction]: Total number of compositions: 67 [2021-03-26 13:18:39,742 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8415 [2021-03-26 13:18:39,743 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:18:39,743 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:39,743 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:39,743 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:18:39,743 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:39,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:39,743 INFO L82 PathProgramCache]: Analyzing trace with hash 301219, now seen corresponding path program 1 times [2021-03-26 13:18:39,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:39,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454973576] [2021-03-26 13:18:39,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:18:39,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:18:39,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:18:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:18:39,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454973576] [2021-03-26 13:18:39,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:18:39,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:18:39,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293408379] [2021-03-26 13:18:39,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:18:39,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:18:39,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:18:39,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:18:39,760 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 273 [2021-03-26 13:18:39,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 137 transitions, 5031 flow. Second operand has 3 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:39,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:18:39,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 273 [2021-03-26 13:18:39,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:18:39,794 INFO L129 PetriNetUnfolder]: 0/136 cut-off events. [2021-03-26 13:18:39,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:39,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2618 conditions, 136 events. 0/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 131 event pairs, 0 based on Foata normal form. 68/204 useless extension candidates. Maximal degree in co-relation 0. Up to 68 conditions per place. [2021-03-26 13:18:39,795 INFO L132 encePairwiseOnDemand]: 271/273 looper letters, 0 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2021-03-26 13:18:39,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 136 transitions, 5031 flow [2021-03-26 13:18:39,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:18:39,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:18:39,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2021-03-26 13:18:39,795 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9914529914529915 [2021-03-26 13:18:39,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2021-03-26 13:18:39,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2021-03-26 13:18:39,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:18:39,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2021-03-26 13:18:39,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:39,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 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) [2021-03-26 13:18:39,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 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) [2021-03-26 13:18:39,797 INFO L185 Difference]: Start difference. First operand has 272 places, 137 transitions, 5031 flow. Second operand 3 states and 812 transitions. [2021-03-26 13:18:39,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 136 transitions, 5031 flow [2021-03-26 13:18:39,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 136 transitions, 609 flow, removed 2211 selfloop flow, removed 0 redundant places. [2021-03-26 13:18:39,897 INFO L241 Difference]: Finished difference. Result has 273 places, 136 transitions, 609 flow [2021-03-26 13:18:39,897 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=609, PETRI_PLACES=273, PETRI_TRANSITIONS=136} [2021-03-26 13:18:39,897 INFO L343 CegarLoopForPetriNet]: 272 programPoint places, 1 predicate places. [2021-03-26 13:18:39,897 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:39,897 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 273 places, 136 transitions, 609 flow [2021-03-26 13:18:39,897 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 273 places, 136 transitions, 609 flow [2021-03-26 13:18:39,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 273 places, 136 transitions, 609 flow [2021-03-26 13:18:39,912 INFO L129 PetriNetUnfolder]: 0/136 cut-off events. [2021-03-26 13:18:39,912 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:39,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 136 events. 0/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 129 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 0. Up to 68 conditions per place. [2021-03-26 13:18:39,915 INFO L142 LiptonReduction]: Number of co-enabled transitions 8978 [2021-03-26 13:18:39,921 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:18:39,921 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:18:39,922 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 13:18:39,922 INFO L480 AbstractCegarLoop]: Abstraction has has 273 places, 136 transitions, 609 flow [2021-03-26 13:18:39,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:39,922 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:39,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:18:39,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-26 13:18:39,922 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:39,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:39,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1351835364, now seen corresponding path program 1 times [2021-03-26 13:18:39,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:39,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726163548] [2021-03-26 13:18:39,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:39,937 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:39,939 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:39,951 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:18:39,951 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:18:39,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-26 13:18:39,952 WARN L342 ceAbstractionStarter]: 67 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:18:39,955 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 68 thread instances. [2021-03-26 13:18:40,023 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:18:40,023 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:18:40,024 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:18:40,024 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:18:40,024 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:18:40,024 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:18:40,024 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:18:40,024 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:18:40,024 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:18:40,024 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:18:40,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 346 places, 209 transitions, 5314 flow [2021-03-26 13:18:40,100 INFO L129 PetriNetUnfolder]: 0/413 cut-off events. [2021-03-26 13:18:40,100 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:40,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2964 conditions, 413 events. 0/413 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1504 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 0. Up to 69 conditions per place. [2021-03-26 13:18:40,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 346 places, 209 transitions, 5314 flow [2021-03-26 13:18:40,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 344 places, 207 transitions, 5310 flow [2021-03-26 13:18:40,102 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:40,102 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 207 transitions, 5310 flow [2021-03-26 13:18:40,102 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 207 transitions, 5310 flow [2021-03-26 13:18:40,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 344 places, 207 transitions, 5310 flow [2021-03-26 13:18:40,153 INFO L129 PetriNetUnfolder]: 0/275 cut-off events. [2021-03-26 13:18:40,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:40,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2826 conditions, 275 events. 0/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 868 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 0. Up to 69 conditions per place. [2021-03-26 13:18:40,173 INFO L142 LiptonReduction]: Number of co-enabled transitions 27880 [2021-03-26 13:18:44,690 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-03-26 13:18:49,474 INFO L154 LiptonReduction]: Checked pairs total: 11526 [2021-03-26 13:18:49,474 INFO L156 LiptonReduction]: Total number of compositions: 68 [2021-03-26 13:18:49,475 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9373 [2021-03-26 13:18:49,475 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:18:49,476 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:49,476 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:49,476 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:18:49,476 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:49,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:49,476 INFO L82 PathProgramCache]: Analyzing trace with hash 310051, now seen corresponding path program 1 times [2021-03-26 13:18:49,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:49,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842013536] [2021-03-26 13:18:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:18:49,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:18:49,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:18:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:18:49,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842013536] [2021-03-26 13:18:49,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:18:49,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:18:49,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138242871] [2021-03-26 13:18:49,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:18:49,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:18:49,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:18:49,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:18:49,499 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 277 [2021-03-26 13:18:49,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 139 transitions, 5174 flow. Second operand has 3 states, 3 states have (on average 274.6666666666667) internal successors, (824), 3 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:49,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:18:49,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 277 [2021-03-26 13:18:49,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:18:49,547 INFO L129 PetriNetUnfolder]: 0/138 cut-off events. [2021-03-26 13:18:49,547 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:49,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2691 conditions, 138 events. 0/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 172 event pairs, 0 based on Foata normal form. 69/207 useless extension candidates. Maximal degree in co-relation 0. Up to 69 conditions per place. [2021-03-26 13:18:49,548 INFO L132 encePairwiseOnDemand]: 275/277 looper letters, 0 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2021-03-26 13:18:49,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 138 transitions, 5174 flow [2021-03-26 13:18:49,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:18:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:18:49,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 824 transitions. [2021-03-26 13:18:49,549 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9915764139590855 [2021-03-26 13:18:49,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 824 transitions. [2021-03-26 13:18:49,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 824 transitions. [2021-03-26 13:18:49,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:18:49,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 824 transitions. [2021-03-26 13:18:49,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.6666666666667) internal successors, (824), 3 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:49,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:49,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:49,551 INFO L185 Difference]: Start difference. First operand has 276 places, 139 transitions, 5174 flow. Second operand 3 states and 824 transitions. [2021-03-26 13:18:49,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 138 transitions, 5174 flow [2021-03-26 13:18:49,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 138 transitions, 618 flow, removed 2278 selfloop flow, removed 0 redundant places. [2021-03-26 13:18:49,677 INFO L241 Difference]: Finished difference. Result has 277 places, 138 transitions, 618 flow [2021-03-26 13:18:49,677 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=277, PETRI_TRANSITIONS=138} [2021-03-26 13:18:49,677 INFO L343 CegarLoopForPetriNet]: 276 programPoint places, 1 predicate places. [2021-03-26 13:18:49,677 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:49,677 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 277 places, 138 transitions, 618 flow [2021-03-26 13:18:49,677 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 277 places, 138 transitions, 618 flow [2021-03-26 13:18:49,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 138 transitions, 618 flow [2021-03-26 13:18:49,697 INFO L129 PetriNetUnfolder]: 0/138 cut-off events. [2021-03-26 13:18:49,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:49,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 138 events. 0/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 130 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 0. Up to 69 conditions per place. [2021-03-26 13:18:49,704 INFO L142 LiptonReduction]: Number of co-enabled transitions 9248 [2021-03-26 13:18:49,711 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:18:49,712 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:18:49,712 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-26 13:18:49,712 INFO L480 AbstractCegarLoop]: Abstraction has has 277 places, 138 transitions, 618 flow [2021-03-26 13:18:49,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 274.6666666666667) internal successors, (824), 3 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:49,712 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:49,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:18:49,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-26 13:18:49,712 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:49,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:49,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1133995506, now seen corresponding path program 1 times [2021-03-26 13:18:49,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:49,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850732590] [2021-03-26 13:18:49,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:49,729 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:49,731 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:49,743 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:18:49,743 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:18:49,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-26 13:18:49,743 WARN L342 ceAbstractionStarter]: 68 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:18:49,744 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 69 thread instances. [2021-03-26 13:18:49,822 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:18:49,822 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:18:49,822 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:18:49,823 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:18:49,823 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:18:49,823 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:18:49,823 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:18:49,823 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:18:49,823 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:18:49,823 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:18:49,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 351 places, 212 transitions, 5461 flow [2021-03-26 13:18:49,924 INFO L129 PetriNetUnfolder]: 0/419 cut-off events. [2021-03-26 13:18:49,924 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:49,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 419 events. 0/419 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1556 event pairs, 0 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 0. Up to 70 conditions per place. [2021-03-26 13:18:49,924 INFO L82 GeneralOperation]: Start removeDead. Operand has 351 places, 212 transitions, 5461 flow [2021-03-26 13:18:49,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 349 places, 210 transitions, 5457 flow [2021-03-26 13:18:49,927 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:49,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 349 places, 210 transitions, 5457 flow [2021-03-26 13:18:49,927 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 349 places, 210 transitions, 5457 flow [2021-03-26 13:18:49,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 349 places, 210 transitions, 5457 flow [2021-03-26 13:18:49,991 INFO L129 PetriNetUnfolder]: 0/279 cut-off events. [2021-03-26 13:18:49,991 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:49,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 279 events. 0/279 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 751 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 0. Up to 70 conditions per place. [2021-03-26 13:18:50,019 INFO L142 LiptonReduction]: Number of co-enabled transitions 28704 [2021-03-26 13:18:59,436 INFO L154 LiptonReduction]: Checked pairs total: 11868 [2021-03-26 13:18:59,436 INFO L156 LiptonReduction]: Total number of compositions: 69 [2021-03-26 13:18:59,436 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9509 [2021-03-26 13:18:59,437 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:18:59,437 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:59,437 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:59,437 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:18:59,437 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:59,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:59,438 INFO L82 PathProgramCache]: Analyzing trace with hash 319011, now seen corresponding path program 1 times [2021-03-26 13:18:59,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:59,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511656597] [2021-03-26 13:18:59,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:18:59,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:18:59,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:18:59,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:18:59,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511656597] [2021-03-26 13:18:59,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:18:59,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:18:59,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080757072] [2021-03-26 13:18:59,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:18:59,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:18:59,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:18:59,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:18:59,461 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 281 [2021-03-26 13:18:59,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 141 transitions, 5319 flow. Second operand has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:59,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:18:59,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 281 [2021-03-26 13:18:59,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:18:59,515 INFO L129 PetriNetUnfolder]: 0/140 cut-off events. [2021-03-26 13:18:59,515 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:59,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2765 conditions, 140 events. 0/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 157 event pairs, 0 based on Foata normal form. 70/210 useless extension candidates. Maximal degree in co-relation 0. Up to 70 conditions per place. [2021-03-26 13:18:59,516 INFO L132 encePairwiseOnDemand]: 279/281 looper letters, 0 selfloop transitions, 1 changer transitions 0/140 dead transitions. [2021-03-26 13:18:59,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 140 transitions, 5319 flow [2021-03-26 13:18:59,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:18:59,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:18:59,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 836 transitions. [2021-03-26 13:18:59,517 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9916963226571768 [2021-03-26 13:18:59,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 836 transitions. [2021-03-26 13:18:59,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 836 transitions. [2021-03-26 13:18:59,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:18:59,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 836 transitions. [2021-03-26 13:18:59,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:59,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:59,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:59,519 INFO L185 Difference]: Start difference. First operand has 280 places, 141 transitions, 5319 flow. Second operand 3 states and 836 transitions. [2021-03-26 13:18:59,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 140 transitions, 5319 flow [2021-03-26 13:18:59,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 140 transitions, 627 flow, removed 2346 selfloop flow, removed 0 redundant places. [2021-03-26 13:18:59,672 INFO L241 Difference]: Finished difference. Result has 281 places, 140 transitions, 627 flow [2021-03-26 13:18:59,672 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=627, PETRI_PLACES=281, PETRI_TRANSITIONS=140} [2021-03-26 13:18:59,672 INFO L343 CegarLoopForPetriNet]: 280 programPoint places, 1 predicate places. [2021-03-26 13:18:59,672 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:59,672 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 281 places, 140 transitions, 627 flow [2021-03-26 13:18:59,673 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 281 places, 140 transitions, 627 flow [2021-03-26 13:18:59,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 281 places, 140 transitions, 627 flow [2021-03-26 13:18:59,695 INFO L129 PetriNetUnfolder]: 0/140 cut-off events. [2021-03-26 13:18:59,695 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:59,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 140 events. 0/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 141 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 0. Up to 70 conditions per place. [2021-03-26 13:18:59,700 INFO L142 LiptonReduction]: Number of co-enabled transitions 9522 [2021-03-26 13:18:59,709 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:18:59,709 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:18:59,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 13:18:59,709 INFO L480 AbstractCegarLoop]: Abstraction has has 281 places, 140 transitions, 627 flow [2021-03-26 13:18:59,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:18:59,710 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:18:59,710 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:18:59,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-26 13:18:59,710 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:18:59,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:18:59,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1823164207, now seen corresponding path program 1 times [2021-03-26 13:18:59,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:18:59,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188940092] [2021-03-26 13:18:59,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:18:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:59,728 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:18:59,730 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:18:59,742 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:18:59,742 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:18:59,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-26 13:18:59,742 WARN L342 ceAbstractionStarter]: 69 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:18:59,743 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 70 thread instances. [2021-03-26 13:18:59,824 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:18:59,824 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:18:59,824 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:18:59,824 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:18:59,825 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:18:59,825 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:18:59,825 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:18:59,825 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:18:59,825 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:18:59,825 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:18:59,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 356 places, 215 transitions, 5610 flow [2021-03-26 13:18:59,914 INFO L129 PetriNetUnfolder]: 0/425 cut-off events. [2021-03-26 13:18:59,914 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:59,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3121 conditions, 425 events. 0/425 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1578 event pairs, 0 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 0. Up to 71 conditions per place. [2021-03-26 13:18:59,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 356 places, 215 transitions, 5610 flow [2021-03-26 13:18:59,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 354 places, 213 transitions, 5606 flow [2021-03-26 13:18:59,916 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:18:59,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 354 places, 213 transitions, 5606 flow [2021-03-26 13:18:59,916 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 354 places, 213 transitions, 5606 flow [2021-03-26 13:18:59,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 354 places, 213 transitions, 5606 flow [2021-03-26 13:18:59,975 INFO L129 PetriNetUnfolder]: 0/283 cut-off events. [2021-03-26 13:18:59,975 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:18:59,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2979 conditions, 283 events. 0/283 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 795 event pairs, 0 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 0. Up to 71 conditions per place. [2021-03-26 13:18:59,997 INFO L142 LiptonReduction]: Number of co-enabled transitions 29540 [2021-03-26 13:19:09,237 INFO L154 LiptonReduction]: Checked pairs total: 12215 [2021-03-26 13:19:09,237 INFO L156 LiptonReduction]: Total number of compositions: 70 [2021-03-26 13:19:09,237 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9321 [2021-03-26 13:19:09,238 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:19:09,238 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:09,238 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:09,238 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:19:09,238 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:09,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:09,238 INFO L82 PathProgramCache]: Analyzing trace with hash 328099, now seen corresponding path program 1 times [2021-03-26 13:19:09,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:09,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863422178] [2021-03-26 13:19:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:19:09,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:19:09,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:19:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:19:09,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863422178] [2021-03-26 13:19:09,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:19:09,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:19:09,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123083745] [2021-03-26 13:19:09,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:19:09,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:19:09,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:19:09,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:19:09,256 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 285 [2021-03-26 13:19:09,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 143 transitions, 5466 flow. Second operand has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:09,257 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:19:09,257 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 285 [2021-03-26 13:19:09,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:19:09,305 INFO L129 PetriNetUnfolder]: 0/142 cut-off events. [2021-03-26 13:19:09,305 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:09,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2840 conditions, 142 events. 0/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 152 event pairs, 0 based on Foata normal form. 71/213 useless extension candidates. Maximal degree in co-relation 0. Up to 71 conditions per place. [2021-03-26 13:19:09,306 INFO L132 encePairwiseOnDemand]: 283/285 looper letters, 0 selfloop transitions, 1 changer transitions 0/142 dead transitions. [2021-03-26 13:19:09,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 142 transitions, 5466 flow [2021-03-26 13:19:09,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:19:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:19:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 848 transitions. [2021-03-26 13:19:09,306 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.991812865497076 [2021-03-26 13:19:09,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 848 transitions. [2021-03-26 13:19:09,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 848 transitions. [2021-03-26 13:19:09,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:19:09,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 848 transitions. [2021-03-26 13:19:09,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:09,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 285.0) internal successors, (1140), 4 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:09,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 285.0) internal successors, (1140), 4 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:09,308 INFO L185 Difference]: Start difference. First operand has 284 places, 143 transitions, 5466 flow. Second operand 3 states and 848 transitions. [2021-03-26 13:19:09,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 142 transitions, 5466 flow [2021-03-26 13:19:09,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 142 transitions, 636 flow, removed 2415 selfloop flow, removed 0 redundant places. [2021-03-26 13:19:09,408 INFO L241 Difference]: Finished difference. Result has 285 places, 142 transitions, 636 flow [2021-03-26 13:19:09,408 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=285, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=285, PETRI_TRANSITIONS=142} [2021-03-26 13:19:09,408 INFO L343 CegarLoopForPetriNet]: 284 programPoint places, 1 predicate places. [2021-03-26 13:19:09,408 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:09,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 142 transitions, 636 flow [2021-03-26 13:19:09,408 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 142 transitions, 636 flow [2021-03-26 13:19:09,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 285 places, 142 transitions, 636 flow [2021-03-26 13:19:09,425 INFO L129 PetriNetUnfolder]: 0/142 cut-off events. [2021-03-26 13:19:09,425 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:09,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 142 events. 0/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 132 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 0. Up to 71 conditions per place. [2021-03-26 13:19:09,429 INFO L142 LiptonReduction]: Number of co-enabled transitions 9800 [2021-03-26 13:19:09,438 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:19:09,438 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:19:09,438 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 13:19:09,439 INFO L480 AbstractCegarLoop]: Abstraction has has 285 places, 142 transitions, 636 flow [2021-03-26 13:19:09,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:09,439 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:09,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:19:09,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-26 13:19:09,439 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:09,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:09,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1518914513, now seen corresponding path program 1 times [2021-03-26 13:19:09,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:09,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682564539] [2021-03-26 13:19:09,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:09,456 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:09,459 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:09,470 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:19:09,471 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:19:09,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-26 13:19:09,471 WARN L342 ceAbstractionStarter]: 70 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:19:09,471 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 71 thread instances. [2021-03-26 13:19:09,561 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:19:09,562 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:19:09,562 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:19:09,562 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:19:09,562 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:19:09,562 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:19:09,562 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:19:09,562 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:19:09,562 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:19:09,563 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:19:09,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 361 places, 218 transitions, 5761 flow [2021-03-26 13:19:09,635 INFO L129 PetriNetUnfolder]: 0/431 cut-off events. [2021-03-26 13:19:09,635 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:09,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3201 conditions, 431 events. 0/431 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1611 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 0. Up to 72 conditions per place. [2021-03-26 13:19:09,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 218 transitions, 5761 flow [2021-03-26 13:19:09,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 216 transitions, 5757 flow [2021-03-26 13:19:09,637 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:09,637 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 359 places, 216 transitions, 5757 flow [2021-03-26 13:19:09,638 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 359 places, 216 transitions, 5757 flow [2021-03-26 13:19:09,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 359 places, 216 transitions, 5757 flow [2021-03-26 13:19:09,700 INFO L129 PetriNetUnfolder]: 0/287 cut-off events. [2021-03-26 13:19:09,700 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:09,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3057 conditions, 287 events. 0/287 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 824 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 0. Up to 72 conditions per place. [2021-03-26 13:19:09,723 INFO L142 LiptonReduction]: Number of co-enabled transitions 30388 [2021-03-26 13:19:19,759 INFO L154 LiptonReduction]: Checked pairs total: 12567 [2021-03-26 13:19:19,760 INFO L156 LiptonReduction]: Total number of compositions: 71 [2021-03-26 13:19:19,760 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10123 [2021-03-26 13:19:19,761 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:19:19,761 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:19,761 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:19,761 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:19:19,761 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:19,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:19,761 INFO L82 PathProgramCache]: Analyzing trace with hash 337315, now seen corresponding path program 1 times [2021-03-26 13:19:19,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:19,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25751495] [2021-03-26 13:19:19,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:19:19,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:19:19,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:19:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:19:19,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25751495] [2021-03-26 13:19:19,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:19:19,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:19:19,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855935482] [2021-03-26 13:19:19,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:19:19,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:19:19,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:19:19,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:19:19,789 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 289 [2021-03-26 13:19:19,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 145 transitions, 5615 flow. Second operand has 3 states, 3 states have (on average 286.6666666666667) internal successors, (860), 3 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:19,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:19:19,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 289 [2021-03-26 13:19:19,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:19:19,847 INFO L129 PetriNetUnfolder]: 0/144 cut-off events. [2021-03-26 13:19:19,847 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:19,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2916 conditions, 144 events. 0/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 135 event pairs, 0 based on Foata normal form. 72/216 useless extension candidates. Maximal degree in co-relation 0. Up to 72 conditions per place. [2021-03-26 13:19:19,847 INFO L132 encePairwiseOnDemand]: 287/289 looper letters, 0 selfloop transitions, 1 changer transitions 0/144 dead transitions. [2021-03-26 13:19:19,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 144 transitions, 5615 flow [2021-03-26 13:19:19,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:19:19,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:19:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 860 transitions. [2021-03-26 13:19:19,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9919261822376009 [2021-03-26 13:19:19,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 860 transitions. [2021-03-26 13:19:19,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 860 transitions. [2021-03-26 13:19:19,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:19:19,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 860 transitions. [2021-03-26 13:19:19,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 286.6666666666667) internal successors, (860), 3 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:19,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:19,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:19,850 INFO L185 Difference]: Start difference. First operand has 288 places, 145 transitions, 5615 flow. Second operand 3 states and 860 transitions. [2021-03-26 13:19:19,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 144 transitions, 5615 flow [2021-03-26 13:19:19,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 144 transitions, 645 flow, removed 2485 selfloop flow, removed 0 redundant places. [2021-03-26 13:19:19,992 INFO L241 Difference]: Finished difference. Result has 289 places, 144 transitions, 645 flow [2021-03-26 13:19:19,992 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=289, PETRI_TRANSITIONS=144} [2021-03-26 13:19:19,992 INFO L343 CegarLoopForPetriNet]: 288 programPoint places, 1 predicate places. [2021-03-26 13:19:19,992 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:19,992 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 144 transitions, 645 flow [2021-03-26 13:19:19,993 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 144 transitions, 645 flow [2021-03-26 13:19:19,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 289 places, 144 transitions, 645 flow [2021-03-26 13:19:20,017 INFO L129 PetriNetUnfolder]: 0/144 cut-off events. [2021-03-26 13:19:20,018 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:20,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 144 events. 0/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 143 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 0. Up to 72 conditions per place. [2021-03-26 13:19:20,022 INFO L142 LiptonReduction]: Number of co-enabled transitions 10082 [2021-03-26 13:19:20,031 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:19:20,031 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:19:20,031 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 13:19:20,032 INFO L480 AbstractCegarLoop]: Abstraction has has 289 places, 144 transitions, 645 flow [2021-03-26 13:19:20,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 286.6666666666667) internal successors, (860), 3 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:20,032 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:20,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:19:20,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-26 13:19:20,032 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:20,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:20,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1746041226, now seen corresponding path program 1 times [2021-03-26 13:19:20,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:20,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013386546] [2021-03-26 13:19:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:20,058 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:20,061 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:20,073 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:19:20,073 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:19:20,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-26 13:19:20,073 WARN L342 ceAbstractionStarter]: 71 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:19:20,073 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 72 thread instances. [2021-03-26 13:19:20,162 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:19:20,163 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:19:20,163 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:19:20,163 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:19:20,163 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:19:20,163 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:19:20,163 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:19:20,163 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:19:20,163 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:19:20,163 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:19:20,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 366 places, 221 transitions, 5914 flow [2021-03-26 13:19:20,272 INFO L129 PetriNetUnfolder]: 0/437 cut-off events. [2021-03-26 13:19:20,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:20,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3282 conditions, 437 events. 0/437 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1586 event pairs, 0 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 0. Up to 73 conditions per place. [2021-03-26 13:19:20,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 366 places, 221 transitions, 5914 flow [2021-03-26 13:19:20,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 364 places, 219 transitions, 5910 flow [2021-03-26 13:19:20,275 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:20,276 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 364 places, 219 transitions, 5910 flow [2021-03-26 13:19:20,276 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 364 places, 219 transitions, 5910 flow [2021-03-26 13:19:20,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 364 places, 219 transitions, 5910 flow [2021-03-26 13:19:20,349 INFO L129 PetriNetUnfolder]: 0/291 cut-off events. [2021-03-26 13:19:20,349 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:20,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3136 conditions, 291 events. 0/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 904 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 0. Up to 73 conditions per place. [2021-03-26 13:19:20,372 INFO L142 LiptonReduction]: Number of co-enabled transitions 31248 [2021-03-26 13:19:30,773 INFO L154 LiptonReduction]: Checked pairs total: 12924 [2021-03-26 13:19:30,773 INFO L156 LiptonReduction]: Total number of compositions: 72 [2021-03-26 13:19:30,773 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10498 [2021-03-26 13:19:30,774 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:19:30,774 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:30,774 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:30,774 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:19:30,774 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:30,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:30,774 INFO L82 PathProgramCache]: Analyzing trace with hash 346659, now seen corresponding path program 1 times [2021-03-26 13:19:30,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:30,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100540868] [2021-03-26 13:19:30,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:19:30,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:19:30,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:19:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:19:30,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100540868] [2021-03-26 13:19:30,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:19:30,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:19:30,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030952181] [2021-03-26 13:19:30,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:19:30,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:19:30,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:19:30,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:19:30,792 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 293 [2021-03-26 13:19:30,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 147 transitions, 5766 flow. Second operand has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:30,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:19:30,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 293 [2021-03-26 13:19:30,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:19:30,849 INFO L129 PetriNetUnfolder]: 0/146 cut-off events. [2021-03-26 13:19:30,850 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:30,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2993 conditions, 146 events. 0/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 170 event pairs, 0 based on Foata normal form. 73/219 useless extension candidates. Maximal degree in co-relation 0. Up to 73 conditions per place. [2021-03-26 13:19:30,850 INFO L132 encePairwiseOnDemand]: 291/293 looper letters, 0 selfloop transitions, 1 changer transitions 0/146 dead transitions. [2021-03-26 13:19:30,850 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 146 transitions, 5766 flow [2021-03-26 13:19:30,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:19:30,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:19:30,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 872 transitions. [2021-03-26 13:19:30,851 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9920364050056882 [2021-03-26 13:19:30,851 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 872 transitions. [2021-03-26 13:19:30,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 872 transitions. [2021-03-26 13:19:30,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:19:30,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 872 transitions. [2021-03-26 13:19:30,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:30,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:30,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:30,853 INFO L185 Difference]: Start difference. First operand has 292 places, 147 transitions, 5766 flow. Second operand 3 states and 872 transitions. [2021-03-26 13:19:30,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 146 transitions, 5766 flow [2021-03-26 13:19:30,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 146 transitions, 654 flow, removed 2556 selfloop flow, removed 0 redundant places. [2021-03-26 13:19:30,974 INFO L241 Difference]: Finished difference. Result has 293 places, 146 transitions, 654 flow [2021-03-26 13:19:30,975 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=293, PETRI_TRANSITIONS=146} [2021-03-26 13:19:30,975 INFO L343 CegarLoopForPetriNet]: 292 programPoint places, 1 predicate places. [2021-03-26 13:19:30,975 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:30,975 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 146 transitions, 654 flow [2021-03-26 13:19:30,975 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 146 transitions, 654 flow [2021-03-26 13:19:30,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 293 places, 146 transitions, 654 flow [2021-03-26 13:19:31,000 INFO L129 PetriNetUnfolder]: 0/146 cut-off events. [2021-03-26 13:19:31,000 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:31,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 146 events. 0/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 126 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 0. Up to 73 conditions per place. [2021-03-26 13:19:31,004 INFO L142 LiptonReduction]: Number of co-enabled transitions 10368 [2021-03-26 13:19:31,014 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:19:31,014 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:19:31,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 13:19:31,014 INFO L480 AbstractCegarLoop]: Abstraction has has 293 places, 146 transitions, 654 flow [2021-03-26 13:19:31,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:31,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:31,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:19:31,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-26 13:19:31,015 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:31,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:31,015 INFO L82 PathProgramCache]: Analyzing trace with hash 748644244, now seen corresponding path program 1 times [2021-03-26 13:19:31,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:31,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647087529] [2021-03-26 13:19:31,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:31,032 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:31,034 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:31,046 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:19:31,047 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:19:31,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-26 13:19:31,047 WARN L342 ceAbstractionStarter]: 72 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:19:31,047 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 73 thread instances. [2021-03-26 13:19:31,121 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:19:31,121 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:19:31,123 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:19:31,123 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:19:31,123 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:19:31,123 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:19:31,123 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:19:31,123 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:19:31,123 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:19:31,123 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:19:31,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 371 places, 224 transitions, 6069 flow [2021-03-26 13:19:31,201 INFO L129 PetriNetUnfolder]: 0/443 cut-off events. [2021-03-26 13:19:31,202 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:31,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3364 conditions, 443 events. 0/443 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1668 event pairs, 0 based on Foata normal form. 0/369 useless extension candidates. Maximal degree in co-relation 0. Up to 74 conditions per place. [2021-03-26 13:19:31,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 371 places, 224 transitions, 6069 flow [2021-03-26 13:19:31,204 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 222 transitions, 6065 flow [2021-03-26 13:19:31,204 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:31,204 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 369 places, 222 transitions, 6065 flow [2021-03-26 13:19:31,204 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 369 places, 222 transitions, 6065 flow [2021-03-26 13:19:31,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 369 places, 222 transitions, 6065 flow [2021-03-26 13:19:31,269 INFO L129 PetriNetUnfolder]: 0/295 cut-off events. [2021-03-26 13:19:31,269 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:31,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3216 conditions, 295 events. 0/295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 787 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 0. Up to 74 conditions per place. [2021-03-26 13:19:31,293 INFO L142 LiptonReduction]: Number of co-enabled transitions 32120 [2021-03-26 13:19:40,395 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-03-26 13:19:42,067 INFO L154 LiptonReduction]: Checked pairs total: 13286 [2021-03-26 13:19:42,067 INFO L156 LiptonReduction]: Total number of compositions: 73 [2021-03-26 13:19:42,068 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10864 [2021-03-26 13:19:42,068 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:19:42,068 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:42,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:42,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:19:42,069 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:42,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:42,069 INFO L82 PathProgramCache]: Analyzing trace with hash 356131, now seen corresponding path program 1 times [2021-03-26 13:19:42,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:42,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590073376] [2021-03-26 13:19:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:19:42,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:19:42,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:19:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:19:42,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590073376] [2021-03-26 13:19:42,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:19:42,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:19:42,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996631931] [2021-03-26 13:19:42,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:19:42,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:19:42,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:19:42,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:19:42,088 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 297 [2021-03-26 13:19:42,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 149 transitions, 5919 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:42,088 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:19:42,088 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 297 [2021-03-26 13:19:42,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:19:42,134 INFO L129 PetriNetUnfolder]: 0/148 cut-off events. [2021-03-26 13:19:42,134 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:42,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3071 conditions, 148 events. 0/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 141 event pairs, 0 based on Foata normal form. 74/222 useless extension candidates. Maximal degree in co-relation 0. Up to 74 conditions per place. [2021-03-26 13:19:42,135 INFO L132 encePairwiseOnDemand]: 295/297 looper letters, 0 selfloop transitions, 1 changer transitions 0/148 dead transitions. [2021-03-26 13:19:42,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 148 transitions, 5919 flow [2021-03-26 13:19:42,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:19:42,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:19:42,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 884 transitions. [2021-03-26 13:19:42,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9921436588103255 [2021-03-26 13:19:42,135 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 884 transitions. [2021-03-26 13:19:42,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 884 transitions. [2021-03-26 13:19:42,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:19:42,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 884 transitions. [2021-03-26 13:19:42,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:42,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:42,137 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:42,137 INFO L185 Difference]: Start difference. First operand has 296 places, 149 transitions, 5919 flow. Second operand 3 states and 884 transitions. [2021-03-26 13:19:42,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 148 transitions, 5919 flow [2021-03-26 13:19:42,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 148 transitions, 663 flow, removed 2628 selfloop flow, removed 0 redundant places. [2021-03-26 13:19:42,236 INFO L241 Difference]: Finished difference. Result has 297 places, 148 transitions, 663 flow [2021-03-26 13:19:42,236 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=663, PETRI_PLACES=297, PETRI_TRANSITIONS=148} [2021-03-26 13:19:42,236 INFO L343 CegarLoopForPetriNet]: 296 programPoint places, 1 predicate places. [2021-03-26 13:19:42,237 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:42,237 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 297 places, 148 transitions, 663 flow [2021-03-26 13:19:42,237 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 297 places, 148 transitions, 663 flow [2021-03-26 13:19:42,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 297 places, 148 transitions, 663 flow [2021-03-26 13:19:42,254 INFO L129 PetriNetUnfolder]: 0/148 cut-off events. [2021-03-26 13:19:42,254 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:42,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 148 events. 0/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 135 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 0. Up to 74 conditions per place. [2021-03-26 13:19:42,257 INFO L142 LiptonReduction]: Number of co-enabled transitions 10658 [2021-03-26 13:19:42,264 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:19:42,264 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:19:42,264 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-26 13:19:42,264 INFO L480 AbstractCegarLoop]: Abstraction has has 297 places, 148 transitions, 663 flow [2021-03-26 13:19:42,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:42,265 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:42,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:19:42,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-26 13:19:42,265 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:42,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:42,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1012633611, now seen corresponding path program 1 times [2021-03-26 13:19:42,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:42,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303415295] [2021-03-26 13:19:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:42,279 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:42,281 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:42,293 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:19:42,293 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:19:42,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-26 13:19:42,294 WARN L342 ceAbstractionStarter]: 73 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:19:42,294 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 74 thread instances. [2021-03-26 13:19:42,365 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:19:42,366 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:19:42,366 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:19:42,366 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:19:42,366 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:19:42,366 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:19:42,366 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:19:42,366 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:19:42,366 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:19:42,366 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:19:42,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 376 places, 227 transitions, 6226 flow [2021-03-26 13:19:42,446 INFO L129 PetriNetUnfolder]: 0/449 cut-off events. [2021-03-26 13:19:42,446 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:42,446 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3447 conditions, 449 events. 0/449 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1667 event pairs, 0 based on Foata normal form. 0/374 useless extension candidates. Maximal degree in co-relation 0. Up to 75 conditions per place. [2021-03-26 13:19:42,446 INFO L82 GeneralOperation]: Start removeDead. Operand has 376 places, 227 transitions, 6226 flow [2021-03-26 13:19:42,449 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 225 transitions, 6222 flow [2021-03-26 13:19:42,449 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:42,449 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 225 transitions, 6222 flow [2021-03-26 13:19:42,449 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 225 transitions, 6222 flow [2021-03-26 13:19:42,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 374 places, 225 transitions, 6222 flow [2021-03-26 13:19:42,512 INFO L129 PetriNetUnfolder]: 0/299 cut-off events. [2021-03-26 13:19:42,513 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:42,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3297 conditions, 299 events. 0/299 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 795 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 0. Up to 75 conditions per place. [2021-03-26 13:19:42,538 INFO L142 LiptonReduction]: Number of co-enabled transitions 33004 [2021-03-26 13:19:53,792 INFO L154 LiptonReduction]: Checked pairs total: 13653 [2021-03-26 13:19:53,792 INFO L156 LiptonReduction]: Total number of compositions: 74 [2021-03-26 13:19:53,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11343 [2021-03-26 13:19:53,793 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:19:53,793 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:53,793 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:53,793 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:19:53,793 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:53,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:53,793 INFO L82 PathProgramCache]: Analyzing trace with hash 365731, now seen corresponding path program 1 times [2021-03-26 13:19:53,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:53,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83316829] [2021-03-26 13:19:53,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:19:53,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:19:53,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:19:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:19:53,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83316829] [2021-03-26 13:19:53,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:19:53,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:19:53,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540507234] [2021-03-26 13:19:53,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:19:53,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:19:53,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:19:53,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:19:53,813 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 301 [2021-03-26 13:19:53,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 151 transitions, 6074 flow. Second operand has 3 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:53,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:19:53,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 301 [2021-03-26 13:19:53,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:19:53,856 INFO L129 PetriNetUnfolder]: 0/150 cut-off events. [2021-03-26 13:19:53,857 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:53,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3150 conditions, 150 events. 0/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 170 event pairs, 0 based on Foata normal form. 75/225 useless extension candidates. Maximal degree in co-relation 0. Up to 75 conditions per place. [2021-03-26 13:19:53,857 INFO L132 encePairwiseOnDemand]: 299/301 looper letters, 0 selfloop transitions, 1 changer transitions 0/150 dead transitions. [2021-03-26 13:19:53,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 150 transitions, 6074 flow [2021-03-26 13:19:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:19:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:19:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 896 transitions. [2021-03-26 13:19:53,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9922480620155039 [2021-03-26 13:19:53,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 896 transitions. [2021-03-26 13:19:53,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 896 transitions. [2021-03-26 13:19:53,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:19:53,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 896 transitions. [2021-03-26 13:19:53,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:53,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:53,859 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:53,859 INFO L185 Difference]: Start difference. First operand has 300 places, 151 transitions, 6074 flow. Second operand 3 states and 896 transitions. [2021-03-26 13:19:53,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 150 transitions, 6074 flow [2021-03-26 13:19:53,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 150 transitions, 672 flow, removed 2701 selfloop flow, removed 0 redundant places. [2021-03-26 13:19:53,960 INFO L241 Difference]: Finished difference. Result has 301 places, 150 transitions, 672 flow [2021-03-26 13:19:53,960 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=672, PETRI_PLACES=301, PETRI_TRANSITIONS=150} [2021-03-26 13:19:53,960 INFO L343 CegarLoopForPetriNet]: 300 programPoint places, 1 predicate places. [2021-03-26 13:19:53,960 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:53,960 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 301 places, 150 transitions, 672 flow [2021-03-26 13:19:53,960 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 301 places, 150 transitions, 672 flow [2021-03-26 13:19:53,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 301 places, 150 transitions, 672 flow [2021-03-26 13:19:53,978 INFO L129 PetriNetUnfolder]: 0/150 cut-off events. [2021-03-26 13:19:53,978 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:53,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 150 events. 0/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 154 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 0. Up to 75 conditions per place. [2021-03-26 13:19:53,981 INFO L142 LiptonReduction]: Number of co-enabled transitions 10952 [2021-03-26 13:19:53,988 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:19:53,989 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:19:53,989 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 13:19:53,989 INFO L480 AbstractCegarLoop]: Abstraction has has 301 places, 150 transitions, 672 flow [2021-03-26 13:19:53,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:19:53,989 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:19:53,989 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:19:53,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-26 13:19:53,989 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:19:53,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:19:53,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1976601769, now seen corresponding path program 1 times [2021-03-26 13:19:53,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:19:53,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974041691] [2021-03-26 13:19:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:19:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:54,003 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:19:54,006 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:19:54,018 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:19:54,018 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:19:54,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-26 13:19:54,018 WARN L342 ceAbstractionStarter]: 74 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:19:54,018 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 75 thread instances. [2021-03-26 13:19:54,104 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:19:54,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:19:54,104 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:19:54,104 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:19:54,104 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:19:54,104 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:19:54,104 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:19:54,104 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:19:54,104 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:19:54,104 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:19:54,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 381 places, 230 transitions, 6385 flow [2021-03-26 13:19:54,184 INFO L129 PetriNetUnfolder]: 0/455 cut-off events. [2021-03-26 13:19:54,184 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:54,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3531 conditions, 455 events. 0/455 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1673 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 0. Up to 76 conditions per place. [2021-03-26 13:19:54,184 INFO L82 GeneralOperation]: Start removeDead. Operand has 381 places, 230 transitions, 6385 flow [2021-03-26 13:19:54,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 379 places, 228 transitions, 6381 flow [2021-03-26 13:19:54,186 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:19:54,186 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 379 places, 228 transitions, 6381 flow [2021-03-26 13:19:54,187 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 379 places, 228 transitions, 6381 flow [2021-03-26 13:19:54,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 379 places, 228 transitions, 6381 flow [2021-03-26 13:19:54,251 INFO L129 PetriNetUnfolder]: 0/303 cut-off events. [2021-03-26 13:19:54,251 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:19:54,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3379 conditions, 303 events. 0/303 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 950 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 0. Up to 76 conditions per place. [2021-03-26 13:19:54,277 INFO L142 LiptonReduction]: Number of co-enabled transitions 33900 [2021-03-26 13:19:58,548 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-03-26 13:20:07,129 INFO L154 LiptonReduction]: Checked pairs total: 14025 [2021-03-26 13:20:07,130 INFO L156 LiptonReduction]: Total number of compositions: 75 [2021-03-26 13:20:07,130 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12944 [2021-03-26 13:20:07,131 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:20:07,131 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:07,131 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:20:07,131 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:20:07,131 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:20:07,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:20:07,131 INFO L82 PathProgramCache]: Analyzing trace with hash 375459, now seen corresponding path program 1 times [2021-03-26 13:20:07,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:20:07,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944562946] [2021-03-26 13:20:07,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:20:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:20:07,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:20:07,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:20:07,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:20:07,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944562946] [2021-03-26 13:20:07,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:20:07,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:20:07,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809490644] [2021-03-26 13:20:07,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:20:07,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:20:07,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:20:07,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:20:07,160 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 305 [2021-03-26 13:20:07,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 153 transitions, 6231 flow. Second operand has 3 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:07,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:20:07,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 305 [2021-03-26 13:20:07,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:20:07,209 INFO L129 PetriNetUnfolder]: 0/152 cut-off events. [2021-03-26 13:20:07,209 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:07,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3230 conditions, 152 events. 0/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 147 event pairs, 0 based on Foata normal form. 76/228 useless extension candidates. Maximal degree in co-relation 0. Up to 76 conditions per place. [2021-03-26 13:20:07,210 INFO L132 encePairwiseOnDemand]: 303/305 looper letters, 0 selfloop transitions, 1 changer transitions 0/152 dead transitions. [2021-03-26 13:20:07,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 152 transitions, 6231 flow [2021-03-26 13:20:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:20:07,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:20:07,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 908 transitions. [2021-03-26 13:20:07,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9923497267759562 [2021-03-26 13:20:07,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 908 transitions. [2021-03-26 13:20:07,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 908 transitions. [2021-03-26 13:20:07,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:20:07,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 908 transitions. [2021-03-26 13:20:07,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:07,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:07,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:07,212 INFO L185 Difference]: Start difference. First operand has 304 places, 153 transitions, 6231 flow. Second operand 3 states and 908 transitions. [2021-03-26 13:20:07,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 152 transitions, 6231 flow [2021-03-26 13:20:07,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 152 transitions, 681 flow, removed 2775 selfloop flow, removed 0 redundant places. [2021-03-26 13:20:07,320 INFO L241 Difference]: Finished difference. Result has 305 places, 152 transitions, 681 flow [2021-03-26 13:20:07,320 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=681, PETRI_PLACES=305, PETRI_TRANSITIONS=152} [2021-03-26 13:20:07,320 INFO L343 CegarLoopForPetriNet]: 304 programPoint places, 1 predicate places. [2021-03-26 13:20:07,320 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:20:07,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 305 places, 152 transitions, 681 flow [2021-03-26 13:20:07,320 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 305 places, 152 transitions, 681 flow [2021-03-26 13:20:07,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 305 places, 152 transitions, 681 flow [2021-03-26 13:20:07,339 INFO L129 PetriNetUnfolder]: 0/152 cut-off events. [2021-03-26 13:20:07,340 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:07,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 152 events. 0/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 143 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 0. Up to 76 conditions per place. [2021-03-26 13:20:07,343 INFO L142 LiptonReduction]: Number of co-enabled transitions 11250 [2021-03-26 13:20:07,351 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:20:07,351 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:20:07,351 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 13:20:07,351 INFO L480 AbstractCegarLoop]: Abstraction has has 305 places, 152 transitions, 681 flow [2021-03-26 13:20:07,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:07,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:20:07,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:20:07,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-26 13:20:07,352 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:20:07,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:20:07,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1188060048, now seen corresponding path program 1 times [2021-03-26 13:20:07,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:20:07,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393019763] [2021-03-26 13:20:07,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:20:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:20:07,367 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:20:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:20:07,370 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:20:07,383 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:20:07,383 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:20:07,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-26 13:20:07,384 WARN L342 ceAbstractionStarter]: 75 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:20:07,384 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 76 thread instances. [2021-03-26 13:20:07,476 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:20:07,476 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:20:07,476 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:20:07,477 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:20:07,477 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:20:07,477 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:20:07,477 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:20:07,477 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:20:07,477 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:20:07,477 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:20:07,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 386 places, 233 transitions, 6546 flow [2021-03-26 13:20:07,602 INFO L129 PetriNetUnfolder]: 0/461 cut-off events. [2021-03-26 13:20:07,602 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:07,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3616 conditions, 461 events. 0/461 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1670 event pairs, 0 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 0. Up to 77 conditions per place. [2021-03-26 13:20:07,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 386 places, 233 transitions, 6546 flow [2021-03-26 13:20:07,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 384 places, 231 transitions, 6542 flow [2021-03-26 13:20:07,606 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:20:07,606 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 384 places, 231 transitions, 6542 flow [2021-03-26 13:20:07,606 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 384 places, 231 transitions, 6542 flow [2021-03-26 13:20:07,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 384 places, 231 transitions, 6542 flow [2021-03-26 13:20:07,710 INFO L129 PetriNetUnfolder]: 0/307 cut-off events. [2021-03-26 13:20:07,710 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:07,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3462 conditions, 307 events. 0/307 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 992 event pairs, 0 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 0. Up to 77 conditions per place. [2021-03-26 13:20:07,747 INFO L142 LiptonReduction]: Number of co-enabled transitions 34808 [2021-03-26 13:20:22,015 INFO L154 LiptonReduction]: Checked pairs total: 14402 [2021-03-26 13:20:22,015 INFO L156 LiptonReduction]: Total number of compositions: 76 [2021-03-26 13:20:22,016 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14410 [2021-03-26 13:20:22,016 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:20:22,016 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:22,017 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:20:22,017 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:20:22,017 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:20:22,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:20:22,017 INFO L82 PathProgramCache]: Analyzing trace with hash 385315, now seen corresponding path program 1 times [2021-03-26 13:20:22,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:20:22,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94787905] [2021-03-26 13:20:22,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:20:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:20:22,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:20:22,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:20:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:20:22,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94787905] [2021-03-26 13:20:22,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:20:22,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:20:22,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169854015] [2021-03-26 13:20:22,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:20:22,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:20:22,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:20:22,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:20:22,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 309 [2021-03-26 13:20:22,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 155 transitions, 6390 flow. Second operand has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:22,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:20:22,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 309 [2021-03-26 13:20:22,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:20:22,089 INFO L129 PetriNetUnfolder]: 0/154 cut-off events. [2021-03-26 13:20:22,089 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:22,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3311 conditions, 154 events. 0/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 124 event pairs, 0 based on Foata normal form. 77/231 useless extension candidates. Maximal degree in co-relation 0. Up to 77 conditions per place. [2021-03-26 13:20:22,089 INFO L132 encePairwiseOnDemand]: 307/309 looper letters, 0 selfloop transitions, 1 changer transitions 0/154 dead transitions. [2021-03-26 13:20:22,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 154 transitions, 6390 flow [2021-03-26 13:20:22,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:20:22,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:20:22,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 920 transitions. [2021-03-26 13:20:22,090 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9924487594390508 [2021-03-26 13:20:22,090 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 920 transitions. [2021-03-26 13:20:22,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 920 transitions. [2021-03-26 13:20:22,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:20:22,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 920 transitions. [2021-03-26 13:20:22,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:22,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 309.0) internal successors, (1236), 4 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:22,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 309.0) internal successors, (1236), 4 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:22,092 INFO L185 Difference]: Start difference. First operand has 308 places, 155 transitions, 6390 flow. Second operand 3 states and 920 transitions. [2021-03-26 13:20:22,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 154 transitions, 6390 flow [2021-03-26 13:20:22,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 154 transitions, 690 flow, removed 2850 selfloop flow, removed 0 redundant places. [2021-03-26 13:20:22,204 INFO L241 Difference]: Finished difference. Result has 309 places, 154 transitions, 690 flow [2021-03-26 13:20:22,204 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=309, PETRI_TRANSITIONS=154} [2021-03-26 13:20:22,204 INFO L343 CegarLoopForPetriNet]: 308 programPoint places, 1 predicate places. [2021-03-26 13:20:22,204 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:20:22,204 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 309 places, 154 transitions, 690 flow [2021-03-26 13:20:22,205 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 309 places, 154 transitions, 690 flow [2021-03-26 13:20:22,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 309 places, 154 transitions, 690 flow [2021-03-26 13:20:22,227 INFO L129 PetriNetUnfolder]: 0/154 cut-off events. [2021-03-26 13:20:22,227 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:22,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 154 events. 0/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 158 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 0. Up to 77 conditions per place. [2021-03-26 13:20:22,231 INFO L142 LiptonReduction]: Number of co-enabled transitions 11552 [2021-03-26 13:20:22,239 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:20:22,239 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:20:22,239 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-26 13:20:22,239 INFO L480 AbstractCegarLoop]: Abstraction has has 309 places, 154 transitions, 690 flow [2021-03-26 13:20:22,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:22,239 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:20:22,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:20:22,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-26 13:20:22,240 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:20:22,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:20:22,240 INFO L82 PathProgramCache]: Analyzing trace with hash 795407642, now seen corresponding path program 1 times [2021-03-26 13:20:22,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:20:22,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931930644] [2021-03-26 13:20:22,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:20:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:20:22,255 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:20:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:20:22,257 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:20:22,270 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:20:22,271 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:20:22,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-26 13:20:22,271 WARN L342 ceAbstractionStarter]: 76 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:20:22,271 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 77 thread instances. [2021-03-26 13:20:22,488 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:20:22,489 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:20:22,489 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:20:22,489 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:20:22,489 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:20:22,489 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:20:22,489 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:20:22,489 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:20:22,489 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:20:22,489 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:20:22,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 391 places, 236 transitions, 6709 flow [2021-03-26 13:20:22,577 INFO L129 PetriNetUnfolder]: 0/467 cut-off events. [2021-03-26 13:20:22,577 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:22,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3702 conditions, 467 events. 0/467 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1773 event pairs, 0 based on Foata normal form. 0/389 useless extension candidates. Maximal degree in co-relation 0. Up to 78 conditions per place. [2021-03-26 13:20:22,577 INFO L82 GeneralOperation]: Start removeDead. Operand has 391 places, 236 transitions, 6709 flow [2021-03-26 13:20:22,580 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 389 places, 234 transitions, 6705 flow [2021-03-26 13:20:22,580 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:20:22,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 234 transitions, 6705 flow [2021-03-26 13:20:22,580 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 234 transitions, 6705 flow [2021-03-26 13:20:22,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 234 transitions, 6705 flow [2021-03-26 13:20:22,654 INFO L129 PetriNetUnfolder]: 0/311 cut-off events. [2021-03-26 13:20:22,654 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:22,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3546 conditions, 311 events. 0/311 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 961 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 0. Up to 78 conditions per place. [2021-03-26 13:20:22,683 INFO L142 LiptonReduction]: Number of co-enabled transitions 35728 [2021-03-26 13:20:36,733 INFO L154 LiptonReduction]: Checked pairs total: 14784 [2021-03-26 13:20:36,733 INFO L156 LiptonReduction]: Total number of compositions: 77 [2021-03-26 13:20:36,734 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14154 [2021-03-26 13:20:36,734 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:20:36,734 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:36,734 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:20:36,735 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:20:36,735 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:20:36,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:20:36,735 INFO L82 PathProgramCache]: Analyzing trace with hash 395299, now seen corresponding path program 1 times [2021-03-26 13:20:36,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:20:36,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676733361] [2021-03-26 13:20:36,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:20:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:20:36,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:20:36,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:20:36,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:20:36,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676733361] [2021-03-26 13:20:36,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:20:36,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:20:36,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161847058] [2021-03-26 13:20:36,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:20:36,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:20:36,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:20:36,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:20:36,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 313 [2021-03-26 13:20:36,759 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 157 transitions, 6551 flow. Second operand has 3 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:36,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:20:36,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 313 [2021-03-26 13:20:36,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:20:36,808 INFO L129 PetriNetUnfolder]: 0/156 cut-off events. [2021-03-26 13:20:36,808 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:36,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3393 conditions, 156 events. 0/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 145 event pairs, 0 based on Foata normal form. 78/234 useless extension candidates. Maximal degree in co-relation 0. Up to 78 conditions per place. [2021-03-26 13:20:36,809 INFO L132 encePairwiseOnDemand]: 311/313 looper letters, 0 selfloop transitions, 1 changer transitions 0/156 dead transitions. [2021-03-26 13:20:36,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 156 transitions, 6551 flow [2021-03-26 13:20:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:20:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:20:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 932 transitions. [2021-03-26 13:20:36,810 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9925452609158679 [2021-03-26 13:20:36,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 932 transitions. [2021-03-26 13:20:36,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 932 transitions. [2021-03-26 13:20:36,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:20:36,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 932 transitions. [2021-03-26 13:20:36,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:36,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:36,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:36,812 INFO L185 Difference]: Start difference. First operand has 312 places, 157 transitions, 6551 flow. Second operand 3 states and 932 transitions. [2021-03-26 13:20:36,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 156 transitions, 6551 flow [2021-03-26 13:20:36,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 156 transitions, 699 flow, removed 2926 selfloop flow, removed 0 redundant places. [2021-03-26 13:20:36,932 INFO L241 Difference]: Finished difference. Result has 313 places, 156 transitions, 699 flow [2021-03-26 13:20:36,932 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=699, PETRI_PLACES=313, PETRI_TRANSITIONS=156} [2021-03-26 13:20:36,932 INFO L343 CegarLoopForPetriNet]: 312 programPoint places, 1 predicate places. [2021-03-26 13:20:36,933 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:20:36,933 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 313 places, 156 transitions, 699 flow [2021-03-26 13:20:36,933 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 313 places, 156 transitions, 699 flow [2021-03-26 13:20:36,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 313 places, 156 transitions, 699 flow [2021-03-26 13:20:36,953 INFO L129 PetriNetUnfolder]: 0/156 cut-off events. [2021-03-26 13:20:36,953 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:36,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 156 events. 0/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 175 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 0. Up to 78 conditions per place. [2021-03-26 13:20:36,957 INFO L142 LiptonReduction]: Number of co-enabled transitions 11858 [2021-03-26 13:20:36,965 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:20:36,965 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:20:36,965 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-26 13:20:36,965 INFO L480 AbstractCegarLoop]: Abstraction has has 313 places, 156 transitions, 699 flow [2021-03-26 13:20:36,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:36,966 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:20:36,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:20:36,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-26 13:20:36,966 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:20:36,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:20:36,966 INFO L82 PathProgramCache]: Analyzing trace with hash 2117439739, now seen corresponding path program 1 times [2021-03-26 13:20:36,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:20:36,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837956020] [2021-03-26 13:20:36,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:20:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:20:36,983 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:20:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:20:36,985 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:20:36,999 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:20:37,000 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:20:37,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-26 13:20:37,000 WARN L342 ceAbstractionStarter]: 77 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:20:37,000 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 78 thread instances. [2021-03-26 13:20:37,107 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:20:37,107 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:20:37,108 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:20:37,108 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:20:37,108 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:20:37,108 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:20:37,108 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:20:37,108 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:20:37,108 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:20:37,108 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:20:37,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 396 places, 239 transitions, 6874 flow [2021-03-26 13:20:37,244 INFO L129 PetriNetUnfolder]: 0/473 cut-off events. [2021-03-26 13:20:37,244 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:37,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3789 conditions, 473 events. 0/473 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1740 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 0. Up to 79 conditions per place. [2021-03-26 13:20:37,245 INFO L82 GeneralOperation]: Start removeDead. Operand has 396 places, 239 transitions, 6874 flow [2021-03-26 13:20:37,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 394 places, 237 transitions, 6870 flow [2021-03-26 13:20:37,248 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:20:37,248 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 394 places, 237 transitions, 6870 flow [2021-03-26 13:20:37,248 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 394 places, 237 transitions, 6870 flow [2021-03-26 13:20:37,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 394 places, 237 transitions, 6870 flow [2021-03-26 13:20:37,358 INFO L129 PetriNetUnfolder]: 0/315 cut-off events. [2021-03-26 13:20:37,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:37,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3631 conditions, 315 events. 0/315 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 950 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 0. Up to 79 conditions per place. [2021-03-26 13:20:37,398 INFO L142 LiptonReduction]: Number of co-enabled transitions 36660 [2021-03-26 13:20:53,099 INFO L154 LiptonReduction]: Checked pairs total: 15171 [2021-03-26 13:20:53,100 INFO L156 LiptonReduction]: Total number of compositions: 78 [2021-03-26 13:20:53,100 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15852 [2021-03-26 13:20:53,100 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:20:53,100 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:53,100 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:20:53,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:20:53,101 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:20:53,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:20:53,101 INFO L82 PathProgramCache]: Analyzing trace with hash 405411, now seen corresponding path program 1 times [2021-03-26 13:20:53,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:20:53,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403019855] [2021-03-26 13:20:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:20:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:20:53,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:20:53,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:20:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:20:53,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403019855] [2021-03-26 13:20:53,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:20:53,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:20:53,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565181373] [2021-03-26 13:20:53,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:20:53,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:20:53,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:20:53,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:20:53,124 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 317 [2021-03-26 13:20:53,125 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 159 transitions, 6714 flow. Second operand has 3 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:53,125 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:20:53,125 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 317 [2021-03-26 13:20:53,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:20:53,174 INFO L129 PetriNetUnfolder]: 0/158 cut-off events. [2021-03-26 13:20:53,175 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:53,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3476 conditions, 158 events. 0/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 166 event pairs, 0 based on Foata normal form. 79/237 useless extension candidates. Maximal degree in co-relation 0. Up to 79 conditions per place. [2021-03-26 13:20:53,175 INFO L132 encePairwiseOnDemand]: 315/317 looper letters, 0 selfloop transitions, 1 changer transitions 0/158 dead transitions. [2021-03-26 13:20:53,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 158 transitions, 6714 flow [2021-03-26 13:20:53,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:20:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:20:53,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2021-03-26 13:20:53,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9926393270241851 [2021-03-26 13:20:53,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 944 transitions. [2021-03-26 13:20:53,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 944 transitions. [2021-03-26 13:20:53,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:20:53,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 944 transitions. [2021-03-26 13:20:53,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:53,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:53,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:53,178 INFO L185 Difference]: Start difference. First operand has 316 places, 159 transitions, 6714 flow. Second operand 3 states and 944 transitions. [2021-03-26 13:20:53,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 158 transitions, 6714 flow [2021-03-26 13:20:53,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 158 transitions, 708 flow, removed 3003 selfloop flow, removed 0 redundant places. [2021-03-26 13:20:53,296 INFO L241 Difference]: Finished difference. Result has 317 places, 158 transitions, 708 flow [2021-03-26 13:20:53,296 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=317, PETRI_TRANSITIONS=158} [2021-03-26 13:20:53,296 INFO L343 CegarLoopForPetriNet]: 316 programPoint places, 1 predicate places. [2021-03-26 13:20:53,296 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:20:53,296 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 317 places, 158 transitions, 708 flow [2021-03-26 13:20:53,296 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 317 places, 158 transitions, 708 flow [2021-03-26 13:20:53,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 317 places, 158 transitions, 708 flow [2021-03-26 13:20:53,316 INFO L129 PetriNetUnfolder]: 0/158 cut-off events. [2021-03-26 13:20:53,316 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:53,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 158 events. 0/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 160 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 0. Up to 79 conditions per place. [2021-03-26 13:20:53,320 INFO L142 LiptonReduction]: Number of co-enabled transitions 12168 [2021-03-26 13:20:53,328 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:20:53,328 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:20:53,328 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-26 13:20:53,328 INFO L480 AbstractCegarLoop]: Abstraction has has 317 places, 158 transitions, 708 flow [2021-03-26 13:20:53,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:20:53,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:20:53,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:20:53,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-26 13:20:53,328 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:20:53,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:20:53,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1047065309, now seen corresponding path program 1 times [2021-03-26 13:20:53,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:20:53,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842402971] [2021-03-26 13:20:53,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:20:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:20:53,346 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:20:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:20:53,348 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:20:53,361 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:20:53,361 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:20:53,361 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-26 13:20:53,361 WARN L342 ceAbstractionStarter]: 78 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:20:53,362 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 79 thread instances. [2021-03-26 13:20:53,451 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:20:53,452 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:20:53,452 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:20:53,452 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:20:53,452 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:20:53,452 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:20:53,452 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:20:53,452 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:20:53,452 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:20:53,452 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:20:53,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 242 transitions, 7041 flow [2021-03-26 13:20:53,548 INFO L129 PetriNetUnfolder]: 0/479 cut-off events. [2021-03-26 13:20:53,548 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:53,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3877 conditions, 479 events. 0/479 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1727 event pairs, 0 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 0. Up to 80 conditions per place. [2021-03-26 13:20:53,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 242 transitions, 7041 flow [2021-03-26 13:20:53,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 240 transitions, 7037 flow [2021-03-26 13:20:53,551 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:20:53,551 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 399 places, 240 transitions, 7037 flow [2021-03-26 13:20:53,551 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 399 places, 240 transitions, 7037 flow [2021-03-26 13:20:53,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 399 places, 240 transitions, 7037 flow [2021-03-26 13:20:53,626 INFO L129 PetriNetUnfolder]: 0/319 cut-off events. [2021-03-26 13:20:53,626 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:20:53,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3717 conditions, 319 events. 0/319 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1007 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 0. Up to 80 conditions per place. [2021-03-26 13:20:53,656 INFO L142 LiptonReduction]: Number of co-enabled transitions 37604 [2021-03-26 13:21:10,972 INFO L154 LiptonReduction]: Checked pairs total: 15563 [2021-03-26 13:21:10,972 INFO L156 LiptonReduction]: Total number of compositions: 79 [2021-03-26 13:21:10,972 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17421 [2021-03-26 13:21:10,973 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:21:10,973 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:10,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:10,973 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:21:10,973 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:10,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:10,973 INFO L82 PathProgramCache]: Analyzing trace with hash 415651, now seen corresponding path program 1 times [2021-03-26 13:21:10,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:10,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929624567] [2021-03-26 13:21:10,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:21:10,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:10,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:21:10,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:21:10,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929624567] [2021-03-26 13:21:10,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:21:10,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:21:10,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301289306] [2021-03-26 13:21:10,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:21:10,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:21:10,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:21:10,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:21:10,998 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 321 [2021-03-26 13:21:10,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 161 transitions, 6879 flow. Second operand has 3 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:10,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:21:10,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 321 [2021-03-26 13:21:10,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:21:11,049 INFO L129 PetriNetUnfolder]: 0/160 cut-off events. [2021-03-26 13:21:11,049 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:11,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3560 conditions, 160 events. 0/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 151 event pairs, 0 based on Foata normal form. 80/240 useless extension candidates. Maximal degree in co-relation 0. Up to 80 conditions per place. [2021-03-26 13:21:11,050 INFO L132 encePairwiseOnDemand]: 319/321 looper letters, 0 selfloop transitions, 1 changer transitions 0/160 dead transitions. [2021-03-26 13:21:11,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 160 transitions, 6879 flow [2021-03-26 13:21:11,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:21:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:21:11,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 956 transitions. [2021-03-26 13:21:11,051 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9927310488058152 [2021-03-26 13:21:11,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 956 transitions. [2021-03-26 13:21:11,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 956 transitions. [2021-03-26 13:21:11,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:21:11,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 956 transitions. [2021-03-26 13:21:11,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:11,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:11,052 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:11,052 INFO L185 Difference]: Start difference. First operand has 320 places, 161 transitions, 6879 flow. Second operand 3 states and 956 transitions. [2021-03-26 13:21:11,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 160 transitions, 6879 flow [2021-03-26 13:21:11,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 160 transitions, 717 flow, removed 3081 selfloop flow, removed 0 redundant places. [2021-03-26 13:21:11,182 INFO L241 Difference]: Finished difference. Result has 321 places, 160 transitions, 717 flow [2021-03-26 13:21:11,183 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=715, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=717, PETRI_PLACES=321, PETRI_TRANSITIONS=160} [2021-03-26 13:21:11,183 INFO L343 CegarLoopForPetriNet]: 320 programPoint places, 1 predicate places. [2021-03-26 13:21:11,183 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:11,183 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 321 places, 160 transitions, 717 flow [2021-03-26 13:21:11,183 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 321 places, 160 transitions, 717 flow [2021-03-26 13:21:11,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 321 places, 160 transitions, 717 flow [2021-03-26 13:21:11,212 INFO L129 PetriNetUnfolder]: 0/160 cut-off events. [2021-03-26 13:21:11,213 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:11,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 160 events. 0/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 159 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 0. Up to 80 conditions per place. [2021-03-26 13:21:11,217 INFO L142 LiptonReduction]: Number of co-enabled transitions 12482 [2021-03-26 13:21:11,228 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:21:11,228 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:21:11,228 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-26 13:21:11,229 INFO L480 AbstractCegarLoop]: Abstraction has has 321 places, 160 transitions, 717 flow [2021-03-26 13:21:11,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:11,229 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:11,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:21:11,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-26 13:21:11,229 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:11,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:11,229 INFO L82 PathProgramCache]: Analyzing trace with hash 2125115286, now seen corresponding path program 1 times [2021-03-26 13:21:11,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:11,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713589349] [2021-03-26 13:21:11,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:21:11,253 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:21:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:21:11,255 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:21:11,270 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:21:11,270 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:21:11,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-26 13:21:11,271 WARN L342 ceAbstractionStarter]: 79 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:21:11,271 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 80 thread instances. [2021-03-26 13:21:11,398 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:21:11,398 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:21:11,398 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:21:11,398 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:21:11,399 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:21:11,399 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:21:11,399 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:21:11,399 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:21:11,399 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:21:11,399 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:21:11,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 406 places, 245 transitions, 7210 flow [2021-03-26 13:21:11,539 INFO L129 PetriNetUnfolder]: 0/485 cut-off events. [2021-03-26 13:21:11,539 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:11,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3966 conditions, 485 events. 0/485 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1761 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 0. Up to 81 conditions per place. [2021-03-26 13:21:11,539 INFO L82 GeneralOperation]: Start removeDead. Operand has 406 places, 245 transitions, 7210 flow [2021-03-26 13:21:11,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 404 places, 243 transitions, 7206 flow [2021-03-26 13:21:11,542 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:11,543 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 404 places, 243 transitions, 7206 flow [2021-03-26 13:21:11,543 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 404 places, 243 transitions, 7206 flow [2021-03-26 13:21:11,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 404 places, 243 transitions, 7206 flow [2021-03-26 13:21:11,633 INFO L129 PetriNetUnfolder]: 0/323 cut-off events. [2021-03-26 13:21:11,633 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:11,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3804 conditions, 323 events. 0/323 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 967 event pairs, 0 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 0. Up to 81 conditions per place. [2021-03-26 13:21:11,663 INFO L142 LiptonReduction]: Number of co-enabled transitions 38560 [2021-03-26 13:21:30,223 INFO L154 LiptonReduction]: Checked pairs total: 15960 [2021-03-26 13:21:30,224 INFO L156 LiptonReduction]: Total number of compositions: 80 [2021-03-26 13:21:30,224 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18682 [2021-03-26 13:21:30,224 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:21:30,224 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:30,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:30,225 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:21:30,225 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:30,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:30,225 INFO L82 PathProgramCache]: Analyzing trace with hash 426019, now seen corresponding path program 1 times [2021-03-26 13:21:30,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:30,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673799756] [2021-03-26 13:21:30,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:21:30,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:30,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:21:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:21:30,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673799756] [2021-03-26 13:21:30,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:21:30,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:21:30,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034240462] [2021-03-26 13:21:30,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:21:30,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:21:30,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:21:30,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:21:30,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 325 [2021-03-26 13:21:30,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 163 transitions, 7046 flow. Second operand has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:30,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:21:30,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 325 [2021-03-26 13:21:30,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:21:30,306 INFO L129 PetriNetUnfolder]: 0/162 cut-off events. [2021-03-26 13:21:30,306 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:30,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3645 conditions, 162 events. 0/162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 152 event pairs, 0 based on Foata normal form. 81/243 useless extension candidates. Maximal degree in co-relation 0. Up to 81 conditions per place. [2021-03-26 13:21:30,306 INFO L132 encePairwiseOnDemand]: 323/325 looper letters, 0 selfloop transitions, 1 changer transitions 0/162 dead transitions. [2021-03-26 13:21:30,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 162 transitions, 7046 flow [2021-03-26 13:21:30,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:21:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:21:30,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 968 transitions. [2021-03-26 13:21:30,307 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9928205128205129 [2021-03-26 13:21:30,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 968 transitions. [2021-03-26 13:21:30,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 968 transitions. [2021-03-26 13:21:30,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:21:30,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 968 transitions. [2021-03-26 13:21:30,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:30,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 325.0) internal successors, (1300), 4 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:30,309 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 325.0) internal successors, (1300), 4 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:30,309 INFO L185 Difference]: Start difference. First operand has 324 places, 163 transitions, 7046 flow. Second operand 3 states and 968 transitions. [2021-03-26 13:21:30,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 162 transitions, 7046 flow [2021-03-26 13:21:30,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 162 transitions, 726 flow, removed 3160 selfloop flow, removed 0 redundant places. [2021-03-26 13:21:30,444 INFO L241 Difference]: Finished difference. Result has 325 places, 162 transitions, 726 flow [2021-03-26 13:21:30,445 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=325, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=325, PETRI_TRANSITIONS=162} [2021-03-26 13:21:30,445 INFO L343 CegarLoopForPetriNet]: 324 programPoint places, 1 predicate places. [2021-03-26 13:21:30,445 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:30,445 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 325 places, 162 transitions, 726 flow [2021-03-26 13:21:30,445 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 325 places, 162 transitions, 726 flow [2021-03-26 13:21:30,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 162 transitions, 726 flow [2021-03-26 13:21:30,465 INFO L129 PetriNetUnfolder]: 0/162 cut-off events. [2021-03-26 13:21:30,465 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:30,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 162 events. 0/162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 160 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 0. Up to 81 conditions per place. [2021-03-26 13:21:30,469 INFO L142 LiptonReduction]: Number of co-enabled transitions 12800 [2021-03-26 13:21:30,478 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:21:30,478 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:21:30,478 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 13:21:30,478 INFO L480 AbstractCegarLoop]: Abstraction has has 325 places, 162 transitions, 726 flow [2021-03-26 13:21:30,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:30,478 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:30,478 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:21:30,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-26 13:21:30,479 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:30,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:30,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1215918752, now seen corresponding path program 1 times [2021-03-26 13:21:30,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:30,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224166329] [2021-03-26 13:21:30,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:21:30,498 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:21:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:21:30,500 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:21:30,516 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:21:30,516 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:21:30,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-26 13:21:30,516 WARN L342 ceAbstractionStarter]: 80 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:21:30,517 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 81 thread instances. [2021-03-26 13:21:30,624 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:21:30,624 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:21:30,624 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:21:30,624 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:21:30,624 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:21:30,624 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:21:30,624 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:21:30,624 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:21:30,624 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:21:30,624 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:21:30,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 411 places, 248 transitions, 7381 flow [2021-03-26 13:21:30,722 INFO L129 PetriNetUnfolder]: 0/491 cut-off events. [2021-03-26 13:21:30,722 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:30,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4056 conditions, 491 events. 0/491 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1826 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 0. Up to 82 conditions per place. [2021-03-26 13:21:30,722 INFO L82 GeneralOperation]: Start removeDead. Operand has 411 places, 248 transitions, 7381 flow [2021-03-26 13:21:30,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 246 transitions, 7377 flow [2021-03-26 13:21:30,725 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:30,725 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 409 places, 246 transitions, 7377 flow [2021-03-26 13:21:30,726 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 409 places, 246 transitions, 7377 flow [2021-03-26 13:21:30,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 409 places, 246 transitions, 7377 flow [2021-03-26 13:21:30,804 INFO L129 PetriNetUnfolder]: 0/327 cut-off events. [2021-03-26 13:21:30,804 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:30,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3892 conditions, 327 events. 0/327 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 904 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 0. Up to 82 conditions per place. [2021-03-26 13:21:30,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 39528 [2021-03-26 13:21:50,436 INFO L154 LiptonReduction]: Checked pairs total: 16362 [2021-03-26 13:21:50,437 INFO L156 LiptonReduction]: Total number of compositions: 81 [2021-03-26 13:21:50,437 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19712 [2021-03-26 13:21:50,437 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:21:50,437 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:50,438 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:50,438 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:21:50,438 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:50,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:50,438 INFO L82 PathProgramCache]: Analyzing trace with hash 436515, now seen corresponding path program 1 times [2021-03-26 13:21:50,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:50,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801427139] [2021-03-26 13:21:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:21:50,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:50,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:21:50,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:21:50,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801427139] [2021-03-26 13:21:50,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:21:50,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:21:50,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564967826] [2021-03-26 13:21:50,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:21:50,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:21:50,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:21:50,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:21:50,463 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 329 [2021-03-26 13:21:50,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 165 transitions, 7215 flow. Second operand has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:50,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:21:50,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 329 [2021-03-26 13:21:50,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:21:50,517 INFO L129 PetriNetUnfolder]: 0/164 cut-off events. [2021-03-26 13:21:50,517 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:50,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3731 conditions, 164 events. 0/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 153 event pairs, 0 based on Foata normal form. 82/246 useless extension candidates. Maximal degree in co-relation 0. Up to 82 conditions per place. [2021-03-26 13:21:50,517 INFO L132 encePairwiseOnDemand]: 327/329 looper letters, 0 selfloop transitions, 1 changer transitions 0/164 dead transitions. [2021-03-26 13:21:50,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 164 transitions, 7215 flow [2021-03-26 13:21:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:21:50,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:21:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 980 transitions. [2021-03-26 13:21:50,518 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9929078014184397 [2021-03-26 13:21:50,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 980 transitions. [2021-03-26 13:21:50,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 980 transitions. [2021-03-26 13:21:50,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:21:50,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 980 transitions. [2021-03-26 13:21:50,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:50,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:50,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:50,520 INFO L185 Difference]: Start difference. First operand has 328 places, 165 transitions, 7215 flow. Second operand 3 states and 980 transitions. [2021-03-26 13:21:50,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 164 transitions, 7215 flow [2021-03-26 13:21:50,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 164 transitions, 735 flow, removed 3240 selfloop flow, removed 0 redundant places. [2021-03-26 13:21:50,680 INFO L241 Difference]: Finished difference. Result has 329 places, 164 transitions, 735 flow [2021-03-26 13:21:50,680 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=735, PETRI_PLACES=329, PETRI_TRANSITIONS=164} [2021-03-26 13:21:50,680 INFO L343 CegarLoopForPetriNet]: 328 programPoint places, 1 predicate places. [2021-03-26 13:21:50,680 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:50,680 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 164 transitions, 735 flow [2021-03-26 13:21:50,680 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 164 transitions, 735 flow [2021-03-26 13:21:50,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 329 places, 164 transitions, 735 flow [2021-03-26 13:21:50,701 INFO L129 PetriNetUnfolder]: 0/164 cut-off events. [2021-03-26 13:21:50,701 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:50,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 164 events. 0/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 161 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 0. Up to 82 conditions per place. [2021-03-26 13:21:50,705 INFO L142 LiptonReduction]: Number of co-enabled transitions 13122 [2021-03-26 13:21:50,713 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:21:50,713 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:21:50,713 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 13:21:50,713 INFO L480 AbstractCegarLoop]: Abstraction has has 329 places, 164 transitions, 735 flow [2021-03-26 13:21:50,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:50,714 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:50,714 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:21:50,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-03-26 13:21:50,714 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:50,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:50,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1883866559, now seen corresponding path program 1 times [2021-03-26 13:21:50,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:50,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008866823] [2021-03-26 13:21:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:21:50,733 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:21:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:21:50,735 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:21:50,750 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:21:50,750 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:21:50,750 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-03-26 13:21:50,750 WARN L342 ceAbstractionStarter]: 81 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:21:50,751 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 82 thread instances. [2021-03-26 13:21:50,880 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:21:50,880 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:21:50,880 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:21:50,880 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:21:50,881 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:21:50,881 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:21:50,881 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:21:50,881 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:21:50,881 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:21:50,881 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:21:50,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 416 places, 251 transitions, 7554 flow [2021-03-26 13:21:51,027 INFO L129 PetriNetUnfolder]: 0/497 cut-off events. [2021-03-26 13:21:51,027 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:51,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4147 conditions, 497 events. 0/497 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1845 event pairs, 0 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 0. Up to 83 conditions per place. [2021-03-26 13:21:51,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 416 places, 251 transitions, 7554 flow [2021-03-26 13:21:51,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 414 places, 249 transitions, 7550 flow [2021-03-26 13:21:51,031 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:51,031 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 414 places, 249 transitions, 7550 flow [2021-03-26 13:21:51,031 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 414 places, 249 transitions, 7550 flow [2021-03-26 13:21:51,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 414 places, 249 transitions, 7550 flow [2021-03-26 13:21:51,114 INFO L129 PetriNetUnfolder]: 0/331 cut-off events. [2021-03-26 13:21:51,114 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:51,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3981 conditions, 331 events. 0/331 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 963 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 0. Up to 83 conditions per place. [2021-03-26 13:21:51,146 INFO L142 LiptonReduction]: Number of co-enabled transitions 40508 [2021-03-26 13:22:11,111 INFO L154 LiptonReduction]: Checked pairs total: 16769 [2021-03-26 13:22:11,111 INFO L156 LiptonReduction]: Total number of compositions: 82 [2021-03-26 13:22:11,112 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20081 [2021-03-26 13:22:11,113 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:22:11,113 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:11,113 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:22:11,113 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:22:11,113 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:22:11,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:22:11,113 INFO L82 PathProgramCache]: Analyzing trace with hash 447139, now seen corresponding path program 1 times [2021-03-26 13:22:11,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:22:11,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833307405] [2021-03-26 13:22:11,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:22:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:22:11,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:22:11,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:22:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:22:11,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833307405] [2021-03-26 13:22:11,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:22:11,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:22:11,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497280930] [2021-03-26 13:22:11,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:22:11,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:22:11,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:22:11,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:22:11,138 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 333 [2021-03-26 13:22:11,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 167 transitions, 7386 flow. Second operand has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:11,138 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:22:11,138 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 333 [2021-03-26 13:22:11,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:22:11,192 INFO L129 PetriNetUnfolder]: 0/166 cut-off events. [2021-03-26 13:22:11,192 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:11,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3818 conditions, 166 events. 0/166 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 184 event pairs, 0 based on Foata normal form. 83/249 useless extension candidates. Maximal degree in co-relation 0. Up to 83 conditions per place. [2021-03-26 13:22:11,193 INFO L132 encePairwiseOnDemand]: 331/333 looper letters, 0 selfloop transitions, 1 changer transitions 0/166 dead transitions. [2021-03-26 13:22:11,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 166 transitions, 7386 flow [2021-03-26 13:22:11,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:22:11,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:22:11,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 992 transitions. [2021-03-26 13:22:11,194 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.992992992992993 [2021-03-26 13:22:11,194 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 992 transitions. [2021-03-26 13:22:11,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 992 transitions. [2021-03-26 13:22:11,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:22:11,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 992 transitions. [2021-03-26 13:22:11,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:11,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:11,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:11,195 INFO L185 Difference]: Start difference. First operand has 332 places, 167 transitions, 7386 flow. Second operand 3 states and 992 transitions. [2021-03-26 13:22:11,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 166 transitions, 7386 flow [2021-03-26 13:22:11,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 166 transitions, 744 flow, removed 3321 selfloop flow, removed 0 redundant places. [2021-03-26 13:22:11,390 INFO L241 Difference]: Finished difference. Result has 333 places, 166 transitions, 744 flow [2021-03-26 13:22:11,390 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=333, PETRI_TRANSITIONS=166} [2021-03-26 13:22:11,390 INFO L343 CegarLoopForPetriNet]: 332 programPoint places, 1 predicate places. [2021-03-26 13:22:11,390 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:22:11,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 333 places, 166 transitions, 744 flow [2021-03-26 13:22:11,390 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 333 places, 166 transitions, 744 flow [2021-03-26 13:22:11,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 333 places, 166 transitions, 744 flow [2021-03-26 13:22:11,421 INFO L129 PetriNetUnfolder]: 0/166 cut-off events. [2021-03-26 13:22:11,421 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:11,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 166 events. 0/166 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 154 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 0. Up to 83 conditions per place. [2021-03-26 13:22:11,426 INFO L142 LiptonReduction]: Number of co-enabled transitions 13448 [2021-03-26 13:22:11,438 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:22:11,438 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:22:11,438 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-26 13:22:11,438 INFO L480 AbstractCegarLoop]: Abstraction has has 333 places, 166 transitions, 744 flow [2021-03-26 13:22:11,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:11,439 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:22:11,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:22:11,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-26 13:22:11,439 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:22:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:22:11,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1599175267, now seen corresponding path program 1 times [2021-03-26 13:22:11,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:22:11,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402707751] [2021-03-26 13:22:11,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:22:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:22:11,463 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:22:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:22:11,465 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:22:11,481 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:22:11,481 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:22:11,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-03-26 13:22:11,482 WARN L342 ceAbstractionStarter]: 82 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:22:11,482 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 83 thread instances. [2021-03-26 13:22:11,614 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:22:11,614 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:22:11,615 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:22:11,615 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:22:11,615 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:22:11,615 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:22:11,615 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:22:11,615 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:22:11,615 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:22:11,615 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:22:11,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 421 places, 254 transitions, 7729 flow [2021-03-26 13:22:11,718 INFO L129 PetriNetUnfolder]: 0/503 cut-off events. [2021-03-26 13:22:11,718 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:11,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4239 conditions, 503 events. 0/503 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1847 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 0. Up to 84 conditions per place. [2021-03-26 13:22:11,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 421 places, 254 transitions, 7729 flow [2021-03-26 13:22:11,720 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 419 places, 252 transitions, 7725 flow [2021-03-26 13:22:11,720 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:22:11,720 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 419 places, 252 transitions, 7725 flow [2021-03-26 13:22:11,721 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 419 places, 252 transitions, 7725 flow [2021-03-26 13:22:11,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 419 places, 252 transitions, 7725 flow [2021-03-26 13:22:11,805 INFO L129 PetriNetUnfolder]: 0/335 cut-off events. [2021-03-26 13:22:11,805 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:11,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4071 conditions, 335 events. 0/335 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1042 event pairs, 0 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 0. Up to 84 conditions per place. [2021-03-26 13:22:11,838 INFO L142 LiptonReduction]: Number of co-enabled transitions 41500 [2021-03-26 13:22:33,344 INFO L154 LiptonReduction]: Checked pairs total: 17181 [2021-03-26 13:22:33,345 INFO L156 LiptonReduction]: Total number of compositions: 83 [2021-03-26 13:22:33,345 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21625 [2021-03-26 13:22:33,346 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:22:33,346 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:33,346 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:22:33,346 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:22:33,346 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:22:33,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:22:33,346 INFO L82 PathProgramCache]: Analyzing trace with hash 457891, now seen corresponding path program 1 times [2021-03-26 13:22:33,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:22:33,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367107092] [2021-03-26 13:22:33,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:22:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:22:33,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:22:33,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:22:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:22:33,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367107092] [2021-03-26 13:22:33,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:22:33,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:22:33,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335207755] [2021-03-26 13:22:33,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:22:33,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:22:33,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:22:33,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:22:33,372 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 337 [2021-03-26 13:22:33,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 169 transitions, 7559 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:33,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:22:33,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 337 [2021-03-26 13:22:33,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:22:33,428 INFO L129 PetriNetUnfolder]: 0/168 cut-off events. [2021-03-26 13:22:33,428 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:33,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3906 conditions, 168 events. 0/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 173 event pairs, 0 based on Foata normal form. 84/252 useless extension candidates. Maximal degree in co-relation 0. Up to 84 conditions per place. [2021-03-26 13:22:33,429 INFO L132 encePairwiseOnDemand]: 335/337 looper letters, 0 selfloop transitions, 1 changer transitions 0/168 dead transitions. [2021-03-26 13:22:33,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 168 transitions, 7559 flow [2021-03-26 13:22:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:22:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:22:33,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2021-03-26 13:22:33,430 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9930761622156281 [2021-03-26 13:22:33,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1004 transitions. [2021-03-26 13:22:33,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1004 transitions. [2021-03-26 13:22:33,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:22:33,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1004 transitions. [2021-03-26 13:22:33,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:33,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:33,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:33,431 INFO L185 Difference]: Start difference. First operand has 336 places, 169 transitions, 7559 flow. Second operand 3 states and 1004 transitions. [2021-03-26 13:22:33,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 168 transitions, 7559 flow [2021-03-26 13:22:33,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 168 transitions, 753 flow, removed 3403 selfloop flow, removed 0 redundant places. [2021-03-26 13:22:33,607 INFO L241 Difference]: Finished difference. Result has 337 places, 168 transitions, 753 flow [2021-03-26 13:22:33,607 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=753, PETRI_PLACES=337, PETRI_TRANSITIONS=168} [2021-03-26 13:22:33,607 INFO L343 CegarLoopForPetriNet]: 336 programPoint places, 1 predicate places. [2021-03-26 13:22:33,607 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:22:33,607 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 337 places, 168 transitions, 753 flow [2021-03-26 13:22:33,607 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 337 places, 168 transitions, 753 flow [2021-03-26 13:22:33,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 337 places, 168 transitions, 753 flow [2021-03-26 13:22:33,629 INFO L129 PetriNetUnfolder]: 0/168 cut-off events. [2021-03-26 13:22:33,630 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:33,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 168 events. 0/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 151 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 0. Up to 84 conditions per place. [2021-03-26 13:22:33,634 INFO L142 LiptonReduction]: Number of co-enabled transitions 13778 [2021-03-26 13:22:33,643 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:22:33,643 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:22:33,643 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-26 13:22:33,643 INFO L480 AbstractCegarLoop]: Abstraction has has 337 places, 168 transitions, 753 flow [2021-03-26 13:22:33,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:33,643 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:22:33,643 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:22:33,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-03-26 13:22:33,644 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:22:33,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:22:33,644 INFO L82 PathProgramCache]: Analyzing trace with hash 443771644, now seen corresponding path program 1 times [2021-03-26 13:22:33,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:22:33,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380932001] [2021-03-26 13:22:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:22:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:22:33,662 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:22:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:22:33,665 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:22:33,681 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:22:33,681 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:22:33,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-03-26 13:22:33,681 WARN L342 ceAbstractionStarter]: 83 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:22:33,682 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 84 thread instances. [2021-03-26 13:22:33,801 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:22:33,802 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:22:33,802 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:22:33,802 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:22:33,802 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:22:33,802 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:22:33,802 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:22:33,802 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:22:33,802 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:22:33,802 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:22:33,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 426 places, 257 transitions, 7906 flow [2021-03-26 13:22:33,907 INFO L129 PetriNetUnfolder]: 0/509 cut-off events. [2021-03-26 13:22:33,907 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:33,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4332 conditions, 509 events. 0/509 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1907 event pairs, 0 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 0. Up to 85 conditions per place. [2021-03-26 13:22:33,907 INFO L82 GeneralOperation]: Start removeDead. Operand has 426 places, 257 transitions, 7906 flow [2021-03-26 13:22:33,909 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 255 transitions, 7902 flow [2021-03-26 13:22:33,909 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:22:33,909 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 424 places, 255 transitions, 7902 flow [2021-03-26 13:22:33,910 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 424 places, 255 transitions, 7902 flow [2021-03-26 13:22:33,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 424 places, 255 transitions, 7902 flow [2021-03-26 13:22:33,992 INFO L129 PetriNetUnfolder]: 0/339 cut-off events. [2021-03-26 13:22:33,993 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:33,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4162 conditions, 339 events. 0/339 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1037 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 0. Up to 85 conditions per place. [2021-03-26 13:22:34,026 INFO L142 LiptonReduction]: Number of co-enabled transitions 42504 [2021-03-26 13:22:57,514 INFO L154 LiptonReduction]: Checked pairs total: 17598 [2021-03-26 13:22:57,514 INFO L156 LiptonReduction]: Total number of compositions: 84 [2021-03-26 13:22:57,514 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23605 [2021-03-26 13:22:57,515 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:22:57,515 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:57,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:22:57,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:22:57,515 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:22:57,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:22:57,515 INFO L82 PathProgramCache]: Analyzing trace with hash 468771, now seen corresponding path program 1 times [2021-03-26 13:22:57,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:22:57,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121162402] [2021-03-26 13:22:57,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:22:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:22:57,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:22:57,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:22:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:22:57,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121162402] [2021-03-26 13:22:57,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:22:57,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:22:57,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460890977] [2021-03-26 13:22:57,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:22:57,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:22:57,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:22:57,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:22:57,547 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 341 [2021-03-26 13:22:57,547 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 171 transitions, 7734 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:57,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:22:57,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 341 [2021-03-26 13:22:57,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:22:57,605 INFO L129 PetriNetUnfolder]: 0/170 cut-off events. [2021-03-26 13:22:57,605 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:57,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3995 conditions, 170 events. 0/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 140 event pairs, 0 based on Foata normal form. 85/255 useless extension candidates. Maximal degree in co-relation 0. Up to 85 conditions per place. [2021-03-26 13:22:57,606 INFO L132 encePairwiseOnDemand]: 339/341 looper letters, 0 selfloop transitions, 1 changer transitions 0/170 dead transitions. [2021-03-26 13:22:57,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 170 transitions, 7734 flow [2021-03-26 13:22:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:22:57,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:22:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1016 transitions. [2021-03-26 13:22:57,607 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9931573802541545 [2021-03-26 13:22:57,607 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1016 transitions. [2021-03-26 13:22:57,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1016 transitions. [2021-03-26 13:22:57,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:22:57,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1016 transitions. [2021-03-26 13:22:57,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:57,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:57,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:57,610 INFO L185 Difference]: Start difference. First operand has 340 places, 171 transitions, 7734 flow. Second operand 3 states and 1016 transitions. [2021-03-26 13:22:57,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 170 transitions, 7734 flow [2021-03-26 13:22:57,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 170 transitions, 762 flow, removed 3486 selfloop flow, removed 0 redundant places. [2021-03-26 13:22:57,811 INFO L241 Difference]: Finished difference. Result has 341 places, 170 transitions, 762 flow [2021-03-26 13:22:57,812 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=341, PETRI_TRANSITIONS=170} [2021-03-26 13:22:57,812 INFO L343 CegarLoopForPetriNet]: 340 programPoint places, 1 predicate places. [2021-03-26 13:22:57,812 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:22:57,812 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 341 places, 170 transitions, 762 flow [2021-03-26 13:22:57,812 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 341 places, 170 transitions, 762 flow [2021-03-26 13:22:57,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 341 places, 170 transitions, 762 flow [2021-03-26 13:22:57,834 INFO L129 PetriNetUnfolder]: 0/170 cut-off events. [2021-03-26 13:22:57,835 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:57,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 170 events. 0/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 160 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 0. Up to 85 conditions per place. [2021-03-26 13:22:57,839 INFO L142 LiptonReduction]: Number of co-enabled transitions 14112 [2021-03-26 13:22:57,848 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:22:57,848 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:22:57,848 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-26 13:22:57,849 INFO L480 AbstractCegarLoop]: Abstraction has has 341 places, 170 transitions, 762 flow [2021-03-26 13:22:57,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:22:57,849 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:22:57,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:22:57,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-03-26 13:22:57,849 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:22:57,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:22:57,849 INFO L82 PathProgramCache]: Analyzing trace with hash 777326630, now seen corresponding path program 1 times [2021-03-26 13:22:57,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:22:57,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024577113] [2021-03-26 13:22:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:22:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:22:57,869 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:22:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:22:57,872 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:22:57,887 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:22:57,887 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:22:57,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-03-26 13:22:57,888 WARN L342 ceAbstractionStarter]: 84 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:22:57,888 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 85 thread instances. [2021-03-26 13:22:58,024 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:22:58,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:22:58,025 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:22:58,025 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:22:58,025 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:22:58,025 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:22:58,025 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:22:58,025 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:22:58,025 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:22:58,025 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:22:58,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 431 places, 260 transitions, 8085 flow [2021-03-26 13:22:58,136 INFO L129 PetriNetUnfolder]: 0/515 cut-off events. [2021-03-26 13:22:58,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:58,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4426 conditions, 515 events. 0/515 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1911 event pairs, 0 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 0. Up to 86 conditions per place. [2021-03-26 13:22:58,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 431 places, 260 transitions, 8085 flow [2021-03-26 13:22:58,139 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 258 transitions, 8081 flow [2021-03-26 13:22:58,139 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:22:58,139 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 429 places, 258 transitions, 8081 flow [2021-03-26 13:22:58,140 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 429 places, 258 transitions, 8081 flow [2021-03-26 13:22:58,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 429 places, 258 transitions, 8081 flow [2021-03-26 13:22:58,228 INFO L129 PetriNetUnfolder]: 0/343 cut-off events. [2021-03-26 13:22:58,228 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:22:58,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4254 conditions, 343 events. 0/343 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1025 event pairs, 0 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 0. Up to 86 conditions per place. [2021-03-26 13:22:58,264 INFO L142 LiptonReduction]: Number of co-enabled transitions 43520 [2021-03-26 13:23:22,281 INFO L154 LiptonReduction]: Checked pairs total: 18020 [2021-03-26 13:23:22,281 INFO L156 LiptonReduction]: Total number of compositions: 85 [2021-03-26 13:23:22,281 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24142 [2021-03-26 13:23:22,282 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:23:22,282 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:22,282 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:23:22,282 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:23:22,282 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:23:22,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:23:22,282 INFO L82 PathProgramCache]: Analyzing trace with hash 479779, now seen corresponding path program 1 times [2021-03-26 13:23:22,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:23:22,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424048220] [2021-03-26 13:23:22,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:23:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:23:22,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:23:22,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:23:22,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:23:22,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424048220] [2021-03-26 13:23:22,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:23:22,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:23:22,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794089114] [2021-03-26 13:23:22,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:23:22,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:23:22,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:23:22,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:23:22,313 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 345 [2021-03-26 13:23:22,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 173 transitions, 7911 flow. Second operand has 3 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:22,313 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:23:22,313 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 345 [2021-03-26 13:23:22,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:23:22,371 INFO L129 PetriNetUnfolder]: 0/172 cut-off events. [2021-03-26 13:23:22,372 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:22,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4085 conditions, 172 events. 0/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 177 event pairs, 0 based on Foata normal form. 86/258 useless extension candidates. Maximal degree in co-relation 0. Up to 86 conditions per place. [2021-03-26 13:23:22,372 INFO L132 encePairwiseOnDemand]: 343/345 looper letters, 0 selfloop transitions, 1 changer transitions 0/172 dead transitions. [2021-03-26 13:23:22,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 172 transitions, 7911 flow [2021-03-26 13:23:22,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:23:22,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:23:22,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1028 transitions. [2021-03-26 13:23:22,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9932367149758454 [2021-03-26 13:23:22,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1028 transitions. [2021-03-26 13:23:22,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1028 transitions. [2021-03-26 13:23:22,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:23:22,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1028 transitions. [2021-03-26 13:23:22,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:22,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:22,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 345.0) internal successors, (1380), 4 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:22,375 INFO L185 Difference]: Start difference. First operand has 344 places, 173 transitions, 7911 flow. Second operand 3 states and 1028 transitions. [2021-03-26 13:23:22,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 172 transitions, 7911 flow [2021-03-26 13:23:22,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 172 transitions, 771 flow, removed 3570 selfloop flow, removed 0 redundant places. [2021-03-26 13:23:22,589 INFO L241 Difference]: Finished difference. Result has 345 places, 172 transitions, 771 flow [2021-03-26 13:23:22,589 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=771, PETRI_PLACES=345, PETRI_TRANSITIONS=172} [2021-03-26 13:23:22,589 INFO L343 CegarLoopForPetriNet]: 344 programPoint places, 1 predicate places. [2021-03-26 13:23:22,589 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:23:22,589 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 345 places, 172 transitions, 771 flow [2021-03-26 13:23:22,589 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 345 places, 172 transitions, 771 flow [2021-03-26 13:23:22,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 345 places, 172 transitions, 771 flow [2021-03-26 13:23:22,612 INFO L129 PetriNetUnfolder]: 0/172 cut-off events. [2021-03-26 13:23:22,612 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:22,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 172 events. 0/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 167 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 0. Up to 86 conditions per place. [2021-03-26 13:23:22,617 INFO L142 LiptonReduction]: Number of co-enabled transitions 14450 [2021-03-26 13:23:22,626 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:23:22,626 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:23:22,626 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 13:23:22,626 INFO L480 AbstractCegarLoop]: Abstraction has has 345 places, 172 transitions, 771 flow [2021-03-26 13:23:22,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:22,626 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:23:22,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:23:22,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-03-26 13:23:22,627 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:23:22,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:23:22,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1051655111, now seen corresponding path program 1 times [2021-03-26 13:23:22,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:23:22,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839892374] [2021-03-26 13:23:22,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:23:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:23:22,646 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:23:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:23:22,649 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:23:22,666 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:23:22,666 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:23:22,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-03-26 13:23:22,667 WARN L342 ceAbstractionStarter]: 85 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:23:22,667 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 86 thread instances. [2021-03-26 13:23:22,795 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:23:22,795 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:23:22,795 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:23:22,795 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:23:22,796 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:23:22,796 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:23:22,796 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:23:22,796 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:23:22,796 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:23:22,796 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:23:22,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 263 transitions, 8266 flow [2021-03-26 13:23:22,906 INFO L129 PetriNetUnfolder]: 0/521 cut-off events. [2021-03-26 13:23:22,906 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:22,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4521 conditions, 521 events. 0/521 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1924 event pairs, 0 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 0. Up to 87 conditions per place. [2021-03-26 13:23:22,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 436 places, 263 transitions, 8266 flow [2021-03-26 13:23:22,909 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 434 places, 261 transitions, 8262 flow [2021-03-26 13:23:22,909 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:23:22,909 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 434 places, 261 transitions, 8262 flow [2021-03-26 13:23:22,909 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 434 places, 261 transitions, 8262 flow [2021-03-26 13:23:22,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 261 transitions, 8262 flow [2021-03-26 13:23:22,997 INFO L129 PetriNetUnfolder]: 0/347 cut-off events. [2021-03-26 13:23:22,998 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:22,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4347 conditions, 347 events. 0/347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1095 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 0. Up to 87 conditions per place. [2021-03-26 13:23:23,035 INFO L142 LiptonReduction]: Number of co-enabled transitions 44548 [2021-03-26 13:23:49,854 INFO L154 LiptonReduction]: Checked pairs total: 18447 [2021-03-26 13:23:49,854 INFO L156 LiptonReduction]: Total number of compositions: 86 [2021-03-26 13:23:49,855 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26946 [2021-03-26 13:23:49,855 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:23:49,855 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:49,855 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:23:49,855 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:23:49,856 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:23:49,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:23:49,856 INFO L82 PathProgramCache]: Analyzing trace with hash 490915, now seen corresponding path program 1 times [2021-03-26 13:23:49,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:23:49,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253484861] [2021-03-26 13:23:49,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:23:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:23:49,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:23:49,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:23:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:23:49,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253484861] [2021-03-26 13:23:49,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:23:49,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:23:49,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471445831] [2021-03-26 13:23:49,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:23:49,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:23:49,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:23:49,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:23:49,885 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 349 [2021-03-26 13:23:49,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 175 transitions, 8090 flow. Second operand has 3 states, 3 states have (on average 346.6666666666667) internal successors, (1040), 3 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:49,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:23:49,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 349 [2021-03-26 13:23:49,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:23:49,945 INFO L129 PetriNetUnfolder]: 0/174 cut-off events. [2021-03-26 13:23:49,945 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:49,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4176 conditions, 174 events. 0/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 182 event pairs, 0 based on Foata normal form. 87/261 useless extension candidates. Maximal degree in co-relation 0. Up to 87 conditions per place. [2021-03-26 13:23:49,946 INFO L132 encePairwiseOnDemand]: 347/349 looper letters, 0 selfloop transitions, 1 changer transitions 0/174 dead transitions. [2021-03-26 13:23:49,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 174 transitions, 8090 flow [2021-03-26 13:23:49,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:23:49,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:23:49,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1040 transitions. [2021-03-26 13:23:49,947 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9933142311365807 [2021-03-26 13:23:49,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1040 transitions. [2021-03-26 13:23:49,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1040 transitions. [2021-03-26 13:23:49,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:23:49,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1040 transitions. [2021-03-26 13:23:49,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 346.6666666666667) internal successors, (1040), 3 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:49,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:49,949 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:49,949 INFO L185 Difference]: Start difference. First operand has 348 places, 175 transitions, 8090 flow. Second operand 3 states and 1040 transitions. [2021-03-26 13:23:49,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 174 transitions, 8090 flow [2021-03-26 13:23:50,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 174 transitions, 780 flow, removed 3655 selfloop flow, removed 0 redundant places. [2021-03-26 13:23:50,175 INFO L241 Difference]: Finished difference. Result has 349 places, 174 transitions, 780 flow [2021-03-26 13:23:50,175 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=778, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=780, PETRI_PLACES=349, PETRI_TRANSITIONS=174} [2021-03-26 13:23:50,175 INFO L343 CegarLoopForPetriNet]: 348 programPoint places, 1 predicate places. [2021-03-26 13:23:50,175 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:23:50,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 349 places, 174 transitions, 780 flow [2021-03-26 13:23:50,175 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 349 places, 174 transitions, 780 flow [2021-03-26 13:23:50,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 349 places, 174 transitions, 780 flow [2021-03-26 13:23:50,199 INFO L129 PetriNetUnfolder]: 0/174 cut-off events. [2021-03-26 13:23:50,199 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:50,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 174 events. 0/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 178 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 0. Up to 87 conditions per place. [2021-03-26 13:23:50,203 INFO L142 LiptonReduction]: Number of co-enabled transitions 14792 [2021-03-26 13:23:50,213 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:23:50,213 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:23:50,213 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-26 13:23:50,214 INFO L480 AbstractCegarLoop]: Abstraction has has 349 places, 174 transitions, 780 flow [2021-03-26 13:23:50,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 346.6666666666667) internal successors, (1040), 3 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:23:50,214 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:23:50,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:23:50,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-03-26 13:23:50,214 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:23:50,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:23:50,214 INFO L82 PathProgramCache]: Analyzing trace with hash 466958825, now seen corresponding path program 1 times [2021-03-26 13:23:50,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:23:50,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529874856] [2021-03-26 13:23:50,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:23:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:23:50,234 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:23:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:23:50,236 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:23:50,253 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:23:50,253 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:23:50,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-03-26 13:23:50,254 WARN L342 ceAbstractionStarter]: 86 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:23:50,254 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 87 thread instances. [2021-03-26 13:23:50,396 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:23:50,397 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:23:50,397 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:23:50,397 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:23:50,397 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:23:50,397 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:23:50,397 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:23:50,397 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:23:50,397 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:23:50,397 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:23:50,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 441 places, 266 transitions, 8449 flow [2021-03-26 13:23:50,511 INFO L129 PetriNetUnfolder]: 0/527 cut-off events. [2021-03-26 13:23:50,511 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:50,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4617 conditions, 527 events. 0/527 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1944 event pairs, 0 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 0. Up to 88 conditions per place. [2021-03-26 13:23:50,511 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 266 transitions, 8449 flow [2021-03-26 13:23:50,513 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 439 places, 264 transitions, 8445 flow [2021-03-26 13:23:50,514 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:23:50,514 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 264 transitions, 8445 flow [2021-03-26 13:23:50,514 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 264 transitions, 8445 flow [2021-03-26 13:23:50,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 439 places, 264 transitions, 8445 flow [2021-03-26 13:23:50,606 INFO L129 PetriNetUnfolder]: 0/351 cut-off events. [2021-03-26 13:23:50,606 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:23:50,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4441 conditions, 351 events. 0/351 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 983 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 0. Up to 88 conditions per place. [2021-03-26 13:23:50,643 INFO L142 LiptonReduction]: Number of co-enabled transitions 45588 [2021-03-26 13:24:19,713 INFO L154 LiptonReduction]: Checked pairs total: 18879 [2021-03-26 13:24:19,713 INFO L156 LiptonReduction]: Total number of compositions: 87 [2021-03-26 13:24:19,714 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29200 [2021-03-26 13:24:19,714 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:24:19,714 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:19,714 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:24:19,714 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:24:19,714 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:24:19,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:24:19,715 INFO L82 PathProgramCache]: Analyzing trace with hash 502179, now seen corresponding path program 1 times [2021-03-26 13:24:19,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:24:19,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206313403] [2021-03-26 13:24:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:24:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:24:19,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:24:19,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:24:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:24:19,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206313403] [2021-03-26 13:24:19,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:24:19,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:24:19,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763575005] [2021-03-26 13:24:19,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:24:19,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:24:19,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:24:19,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:24:19,744 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 353 [2021-03-26 13:24:19,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 177 transitions, 8271 flow. Second operand has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:19,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:24:19,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 353 [2021-03-26 13:24:19,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:24:19,805 INFO L129 PetriNetUnfolder]: 0/176 cut-off events. [2021-03-26 13:24:19,806 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:19,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4268 conditions, 176 events. 0/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 177 event pairs, 0 based on Foata normal form. 88/264 useless extension candidates. Maximal degree in co-relation 0. Up to 88 conditions per place. [2021-03-26 13:24:19,806 INFO L132 encePairwiseOnDemand]: 351/353 looper letters, 0 selfloop transitions, 1 changer transitions 0/176 dead transitions. [2021-03-26 13:24:19,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 176 transitions, 8271 flow [2021-03-26 13:24:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:24:19,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:24:19,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1052 transitions. [2021-03-26 13:24:19,807 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9933899905571294 [2021-03-26 13:24:19,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1052 transitions. [2021-03-26 13:24:19,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1052 transitions. [2021-03-26 13:24:19,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:24:19,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1052 transitions. [2021-03-26 13:24:19,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:19,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:19,809 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:19,809 INFO L185 Difference]: Start difference. First operand has 352 places, 177 transitions, 8271 flow. Second operand 3 states and 1052 transitions. [2021-03-26 13:24:19,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 176 transitions, 8271 flow [2021-03-26 13:24:20,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 176 transitions, 789 flow, removed 3741 selfloop flow, removed 0 redundant places. [2021-03-26 13:24:20,050 INFO L241 Difference]: Finished difference. Result has 353 places, 176 transitions, 789 flow [2021-03-26 13:24:20,050 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=789, PETRI_PLACES=353, PETRI_TRANSITIONS=176} [2021-03-26 13:24:20,050 INFO L343 CegarLoopForPetriNet]: 352 programPoint places, 1 predicate places. [2021-03-26 13:24:20,050 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:24:20,050 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 353 places, 176 transitions, 789 flow [2021-03-26 13:24:20,050 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 353 places, 176 transitions, 789 flow [2021-03-26 13:24:20,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 353 places, 176 transitions, 789 flow [2021-03-26 13:24:20,076 INFO L129 PetriNetUnfolder]: 0/176 cut-off events. [2021-03-26 13:24:20,076 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:20,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 176 events. 0/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 177 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 0. Up to 88 conditions per place. [2021-03-26 13:24:20,081 INFO L142 LiptonReduction]: Number of co-enabled transitions 15138 [2021-03-26 13:24:20,091 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:24:20,091 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:24:20,091 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-26 13:24:20,091 INFO L480 AbstractCegarLoop]: Abstraction has has 353 places, 176 transitions, 789 flow [2021-03-26 13:24:20,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:20,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:24:20,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:24:20,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-03-26 13:24:20,092 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:24:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:24:20,092 INFO L82 PathProgramCache]: Analyzing trace with hash -307648862, now seen corresponding path program 1 times [2021-03-26 13:24:20,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:24:20,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142886751] [2021-03-26 13:24:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:24:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:24:20,112 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:24:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:24:20,115 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:24:20,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:24:20,133 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:24:20,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-03-26 13:24:20,134 WARN L342 ceAbstractionStarter]: 87 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:24:20,134 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 88 thread instances. [2021-03-26 13:24:20,273 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:24:20,274 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:24:20,274 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:24:20,274 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:24:20,274 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:24:20,274 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:24:20,274 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:24:20,274 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:24:20,274 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:24:20,274 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:24:20,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 446 places, 269 transitions, 8634 flow [2021-03-26 13:24:20,391 INFO L129 PetriNetUnfolder]: 0/533 cut-off events. [2021-03-26 13:24:20,391 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:20,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4714 conditions, 533 events. 0/533 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1958 event pairs, 0 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 0. Up to 89 conditions per place. [2021-03-26 13:24:20,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 446 places, 269 transitions, 8634 flow [2021-03-26 13:24:20,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 267 transitions, 8630 flow [2021-03-26 13:24:20,394 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:24:20,394 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 444 places, 267 transitions, 8630 flow [2021-03-26 13:24:20,394 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 444 places, 267 transitions, 8630 flow [2021-03-26 13:24:20,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 444 places, 267 transitions, 8630 flow [2021-03-26 13:24:20,486 INFO L129 PetriNetUnfolder]: 0/355 cut-off events. [2021-03-26 13:24:20,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:20,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4536 conditions, 355 events. 0/355 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1148 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 0. Up to 89 conditions per place. [2021-03-26 13:24:20,526 INFO L142 LiptonReduction]: Number of co-enabled transitions 46640 [2021-03-26 13:24:49,896 INFO L154 LiptonReduction]: Checked pairs total: 19316 [2021-03-26 13:24:49,897 INFO L156 LiptonReduction]: Total number of compositions: 88 [2021-03-26 13:24:49,897 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29503 [2021-03-26 13:24:49,897 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:24:49,898 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:49,898 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:24:49,898 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:24:49,898 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:24:49,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:24:49,898 INFO L82 PathProgramCache]: Analyzing trace with hash 513571, now seen corresponding path program 1 times [2021-03-26 13:24:49,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:24:49,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170831281] [2021-03-26 13:24:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:24:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:24:49,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:24:49,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:24:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:24:49,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170831281] [2021-03-26 13:24:49,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:24:49,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:24:49,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55046523] [2021-03-26 13:24:49,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:24:49,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:24:49,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:24:49,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:24:49,925 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 357 [2021-03-26 13:24:49,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 179 transitions, 8454 flow. Second operand has 3 states, 3 states have (on average 354.6666666666667) internal successors, (1064), 3 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:49,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:24:49,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 357 [2021-03-26 13:24:49,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:24:49,988 INFO L129 PetriNetUnfolder]: 0/178 cut-off events. [2021-03-26 13:24:49,988 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:49,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4361 conditions, 178 events. 0/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 190 event pairs, 0 based on Foata normal form. 89/267 useless extension candidates. Maximal degree in co-relation 0. Up to 89 conditions per place. [2021-03-26 13:24:49,988 INFO L132 encePairwiseOnDemand]: 355/357 looper letters, 0 selfloop transitions, 1 changer transitions 0/178 dead transitions. [2021-03-26 13:24:49,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 178 transitions, 8454 flow [2021-03-26 13:24:49,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:24:49,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:24:49,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1064 transitions. [2021-03-26 13:24:49,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9934640522875817 [2021-03-26 13:24:49,989 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1064 transitions. [2021-03-26 13:24:49,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1064 transitions. [2021-03-26 13:24:49,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:24:49,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1064 transitions. [2021-03-26 13:24:49,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.6666666666667) internal successors, (1064), 3 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:49,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:49,991 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:49,991 INFO L185 Difference]: Start difference. First operand has 356 places, 179 transitions, 8454 flow. Second operand 3 states and 1064 transitions. [2021-03-26 13:24:49,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 178 transitions, 8454 flow [2021-03-26 13:24:50,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 178 transitions, 798 flow, removed 3828 selfloop flow, removed 0 redundant places. [2021-03-26 13:24:50,246 INFO L241 Difference]: Finished difference. Result has 357 places, 178 transitions, 798 flow [2021-03-26 13:24:50,246 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=357, PETRI_TRANSITIONS=178} [2021-03-26 13:24:50,246 INFO L343 CegarLoopForPetriNet]: 356 programPoint places, 1 predicate places. [2021-03-26 13:24:50,246 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:24:50,246 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 357 places, 178 transitions, 798 flow [2021-03-26 13:24:50,246 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 357 places, 178 transitions, 798 flow [2021-03-26 13:24:50,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 357 places, 178 transitions, 798 flow [2021-03-26 13:24:50,270 INFO L129 PetriNetUnfolder]: 0/178 cut-off events. [2021-03-26 13:24:50,270 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:50,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 178 events. 0/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 154 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 0. Up to 89 conditions per place. [2021-03-26 13:24:50,275 INFO L142 LiptonReduction]: Number of co-enabled transitions 15488 [2021-03-26 13:24:50,285 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:24:50,285 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:24:50,285 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 13:24:50,285 INFO L480 AbstractCegarLoop]: Abstraction has has 357 places, 178 transitions, 798 flow [2021-03-26 13:24:50,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 354.6666666666667) internal successors, (1064), 3 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:24:50,285 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:24:50,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:24:50,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-03-26 13:24:50,285 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:24:50,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:24:50,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1917844908, now seen corresponding path program 1 times [2021-03-26 13:24:50,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:24:50,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693794266] [2021-03-26 13:24:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:24:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:24:50,305 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:24:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:24:50,307 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:24:50,324 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:24:50,324 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:24:50,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-03-26 13:24:50,324 WARN L342 ceAbstractionStarter]: 88 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:24:50,324 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 89 thread instances. [2021-03-26 13:24:50,455 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:24:50,455 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:24:50,455 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:24:50,455 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:24:50,455 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:24:50,455 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:24:50,455 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:24:50,455 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:24:50,456 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:24:50,456 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:24:50,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 451 places, 272 transitions, 8821 flow [2021-03-26 13:24:50,572 INFO L129 PetriNetUnfolder]: 0/539 cut-off events. [2021-03-26 13:24:50,572 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:50,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4812 conditions, 539 events. 0/539 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2051 event pairs, 0 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 0. Up to 90 conditions per place. [2021-03-26 13:24:50,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 451 places, 272 transitions, 8821 flow [2021-03-26 13:24:50,575 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 449 places, 270 transitions, 8817 flow [2021-03-26 13:24:50,575 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:24:50,575 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 449 places, 270 transitions, 8817 flow [2021-03-26 13:24:50,576 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 449 places, 270 transitions, 8817 flow [2021-03-26 13:24:50,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 449 places, 270 transitions, 8817 flow [2021-03-26 13:24:50,670 INFO L129 PetriNetUnfolder]: 0/359 cut-off events. [2021-03-26 13:24:50,670 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:24:50,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4632 conditions, 359 events. 0/359 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1034 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 0. Up to 90 conditions per place. [2021-03-26 13:24:50,710 INFO L142 LiptonReduction]: Number of co-enabled transitions 47704 [2021-03-26 13:25:24,062 INFO L154 LiptonReduction]: Checked pairs total: 19758 [2021-03-26 13:25:24,062 INFO L156 LiptonReduction]: Total number of compositions: 89 [2021-03-26 13:25:24,062 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33487 [2021-03-26 13:25:24,063 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:25:24,063 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:25:24,063 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:25:24,063 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:25:24,063 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:25:24,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:25:24,063 INFO L82 PathProgramCache]: Analyzing trace with hash 525091, now seen corresponding path program 1 times [2021-03-26 13:25:24,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:25:24,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740004294] [2021-03-26 13:25:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:25:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:25:24,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:25:24,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:25:24,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:25:24,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740004294] [2021-03-26 13:25:24,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:25:24,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:25:24,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136234683] [2021-03-26 13:25:24,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:25:24,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:25:24,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:25:24,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:25:24,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 361 [2021-03-26 13:25:24,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 181 transitions, 8639 flow. Second operand has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:25:24,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:25:24,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 361 [2021-03-26 13:25:24,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:25:24,158 INFO L129 PetriNetUnfolder]: 0/180 cut-off events. [2021-03-26 13:25:24,158 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:25:24,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4455 conditions, 180 events. 0/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 179 event pairs, 0 based on Foata normal form. 90/270 useless extension candidates. Maximal degree in co-relation 0. Up to 90 conditions per place. [2021-03-26 13:25:24,159 INFO L132 encePairwiseOnDemand]: 359/361 looper letters, 0 selfloop transitions, 1 changer transitions 0/180 dead transitions. [2021-03-26 13:25:24,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 180 transitions, 8639 flow [2021-03-26 13:25:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:25:24,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:25:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1076 transitions. [2021-03-26 13:25:24,160 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9935364727608494 [2021-03-26 13:25:24,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1076 transitions. [2021-03-26 13:25:24,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1076 transitions. [2021-03-26 13:25:24,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:25:24,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1076 transitions. [2021-03-26 13:25:24,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:25:24,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:25:24,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:25:24,162 INFO L185 Difference]: Start difference. First operand has 360 places, 181 transitions, 8639 flow. Second operand 3 states and 1076 transitions. [2021-03-26 13:25:24,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 180 transitions, 8639 flow [2021-03-26 13:25:24,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 180 transitions, 807 flow, removed 3916 selfloop flow, removed 0 redundant places. [2021-03-26 13:25:24,451 INFO L241 Difference]: Finished difference. Result has 361 places, 180 transitions, 807 flow [2021-03-26 13:25:24,451 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=807, PETRI_PLACES=361, PETRI_TRANSITIONS=180} [2021-03-26 13:25:24,451 INFO L343 CegarLoopForPetriNet]: 360 programPoint places, 1 predicate places. [2021-03-26 13:25:24,451 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:25:24,451 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 361 places, 180 transitions, 807 flow [2021-03-26 13:25:24,451 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 361 places, 180 transitions, 807 flow [2021-03-26 13:25:24,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 361 places, 180 transitions, 807 flow [2021-03-26 13:25:24,476 INFO L129 PetriNetUnfolder]: 0/180 cut-off events. [2021-03-26 13:25:24,476 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:25:24,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 180 events. 0/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 175 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 0. Up to 90 conditions per place. [2021-03-26 13:25:24,481 INFO L142 LiptonReduction]: Number of co-enabled transitions 15842 [2021-03-26 13:25:24,490 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:25:24,490 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:25:24,490 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 13:25:24,491 INFO L480 AbstractCegarLoop]: Abstraction has has 361 places, 180 transitions, 807 flow [2021-03-26 13:25:24,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:25:24,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:25:24,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:25:24,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-03-26 13:25:24,491 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:25:24,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:25:24,491 INFO L82 PathProgramCache]: Analyzing trace with hash -53025395, now seen corresponding path program 1 times [2021-03-26 13:25:24,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:25:24,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252270135] [2021-03-26 13:25:24,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:25:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:25:24,511 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:25:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:25:24,513 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:25:24,532 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:25:24,532 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:25:24,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-03-26 13:25:24,532 WARN L342 ceAbstractionStarter]: 89 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:25:24,532 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 90 thread instances. [2021-03-26 13:25:24,693 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:25:24,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:25:24,693 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:25:24,694 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:25:24,694 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:25:24,694 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:25:24,694 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:25:24,694 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:25:24,694 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:25:24,694 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:25:24,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 456 places, 275 transitions, 9010 flow [2021-03-26 13:25:24,826 INFO L129 PetriNetUnfolder]: 0/545 cut-off events. [2021-03-26 13:25:24,826 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:25:24,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4911 conditions, 545 events. 0/545 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2084 event pairs, 0 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 0. Up to 91 conditions per place. [2021-03-26 13:25:24,826 INFO L82 GeneralOperation]: Start removeDead. Operand has 456 places, 275 transitions, 9010 flow [2021-03-26 13:25:24,829 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 454 places, 273 transitions, 9006 flow [2021-03-26 13:25:24,829 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:25:24,829 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 454 places, 273 transitions, 9006 flow [2021-03-26 13:25:24,829 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 454 places, 273 transitions, 9006 flow [2021-03-26 13:25:24,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 454 places, 273 transitions, 9006 flow [2021-03-26 13:25:24,971 INFO L129 PetriNetUnfolder]: 0/363 cut-off events. [2021-03-26 13:25:24,971 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:25:24,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4729 conditions, 363 events. 0/363 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1007 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 0. Up to 91 conditions per place. [2021-03-26 13:25:25,027 INFO L142 LiptonReduction]: Number of co-enabled transitions 48780 [2021-03-26 13:26:01,388 INFO L154 LiptonReduction]: Checked pairs total: 20205 [2021-03-26 13:26:01,388 INFO L156 LiptonReduction]: Total number of compositions: 90 [2021-03-26 13:26:01,388 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36559 [2021-03-26 13:26:01,389 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:26:01,389 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:01,389 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:26:01,389 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:26:01,389 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:26:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:26:01,389 INFO L82 PathProgramCache]: Analyzing trace with hash 536739, now seen corresponding path program 1 times [2021-03-26 13:26:01,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:26:01,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826602572] [2021-03-26 13:26:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:26:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:26:01,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:26:01,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:26:01,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:26:01,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826602572] [2021-03-26 13:26:01,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:26:01,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:26:01,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162744252] [2021-03-26 13:26:01,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:26:01,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:26:01,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:26:01,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:26:01,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 365 [2021-03-26 13:26:01,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 183 transitions, 8826 flow. Second operand has 3 states, 3 states have (on average 362.6666666666667) internal successors, (1088), 3 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:01,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:26:01,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 365 [2021-03-26 13:26:01,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:26:01,489 INFO L129 PetriNetUnfolder]: 0/182 cut-off events. [2021-03-26 13:26:01,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:01,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4550 conditions, 182 events. 0/182 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 156 event pairs, 0 based on Foata normal form. 91/273 useless extension candidates. Maximal degree in co-relation 0. Up to 91 conditions per place. [2021-03-26 13:26:01,489 INFO L132 encePairwiseOnDemand]: 363/365 looper letters, 0 selfloop transitions, 1 changer transitions 0/182 dead transitions. [2021-03-26 13:26:01,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 182 transitions, 8826 flow [2021-03-26 13:26:01,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:26:01,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:26:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1088 transitions. [2021-03-26 13:26:01,490 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.993607305936073 [2021-03-26 13:26:01,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1088 transitions. [2021-03-26 13:26:01,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1088 transitions. [2021-03-26 13:26:01,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:26:01,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1088 transitions. [2021-03-26 13:26:01,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.6666666666667) internal successors, (1088), 3 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:01,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:01,492 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:01,492 INFO L185 Difference]: Start difference. First operand has 364 places, 183 transitions, 8826 flow. Second operand 3 states and 1088 transitions. [2021-03-26 13:26:01,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 182 transitions, 8826 flow [2021-03-26 13:26:01,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 182 transitions, 816 flow, removed 4005 selfloop flow, removed 0 redundant places. [2021-03-26 13:26:01,769 INFO L241 Difference]: Finished difference. Result has 365 places, 182 transitions, 816 flow [2021-03-26 13:26:01,769 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=365, PETRI_TRANSITIONS=182} [2021-03-26 13:26:01,769 INFO L343 CegarLoopForPetriNet]: 364 programPoint places, 1 predicate places. [2021-03-26 13:26:01,769 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:26:01,769 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 365 places, 182 transitions, 816 flow [2021-03-26 13:26:01,769 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 365 places, 182 transitions, 816 flow [2021-03-26 13:26:01,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 365 places, 182 transitions, 816 flow [2021-03-26 13:26:01,794 INFO L129 PetriNetUnfolder]: 0/182 cut-off events. [2021-03-26 13:26:01,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:01,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 182 events. 0/182 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 162 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 0. Up to 91 conditions per place. [2021-03-26 13:26:01,799 INFO L142 LiptonReduction]: Number of co-enabled transitions 16200 [2021-03-26 13:26:01,809 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:26:01,809 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:26:01,809 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-26 13:26:01,809 INFO L480 AbstractCegarLoop]: Abstraction has has 365 places, 182 transitions, 816 flow [2021-03-26 13:26:01,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 362.6666666666667) internal successors, (1088), 3 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:01,810 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:26:01,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:26:01,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-26 13:26:01,810 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:26:01,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:26:01,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1850711697, now seen corresponding path program 1 times [2021-03-26 13:26:01,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:26:01,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542295805] [2021-03-26 13:26:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:26:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:26:01,829 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:26:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:26:01,831 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:26:01,846 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:26:01,846 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:26:01,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-03-26 13:26:01,846 WARN L342 ceAbstractionStarter]: 90 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:26:01,847 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 91 thread instances. [2021-03-26 13:26:01,999 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:26:01,999 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:26:01,999 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:26:01,999 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:26:01,999 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:26:01,999 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:26:01,999 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:26:01,999 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:26:01,999 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:26:01,999 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:26:02,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 461 places, 278 transitions, 9201 flow [2021-03-26 13:26:02,125 INFO L129 PetriNetUnfolder]: 0/551 cut-off events. [2021-03-26 13:26:02,125 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:02,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5011 conditions, 551 events. 0/551 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1985 event pairs, 0 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 0. Up to 92 conditions per place. [2021-03-26 13:26:02,125 INFO L82 GeneralOperation]: Start removeDead. Operand has 461 places, 278 transitions, 9201 flow [2021-03-26 13:26:02,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 459 places, 276 transitions, 9197 flow [2021-03-26 13:26:02,128 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:26:02,128 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 459 places, 276 transitions, 9197 flow [2021-03-26 13:26:02,128 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 459 places, 276 transitions, 9197 flow [2021-03-26 13:26:02,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 459 places, 276 transitions, 9197 flow [2021-03-26 13:26:02,229 INFO L129 PetriNetUnfolder]: 0/367 cut-off events. [2021-03-26 13:26:02,229 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:02,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4827 conditions, 367 events. 0/367 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 979 event pairs, 0 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 0. Up to 92 conditions per place. [2021-03-26 13:26:02,272 INFO L142 LiptonReduction]: Number of co-enabled transitions 49868 [2021-03-26 13:26:40,408 INFO L154 LiptonReduction]: Checked pairs total: 20657 [2021-03-26 13:26:40,408 INFO L156 LiptonReduction]: Total number of compositions: 91 [2021-03-26 13:26:40,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38281 [2021-03-26 13:26:40,409 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:26:40,409 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:40,409 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:26:40,409 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:26:40,410 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:26:40,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:26:40,410 INFO L82 PathProgramCache]: Analyzing trace with hash 548515, now seen corresponding path program 1 times [2021-03-26 13:26:40,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:26:40,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443486173] [2021-03-26 13:26:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:26:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:26:40,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:26:40,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:26:40,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:26:40,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443486173] [2021-03-26 13:26:40,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:26:40,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:26:40,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777469700] [2021-03-26 13:26:40,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:26:40,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:26:40,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:26:40,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:26:40,449 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 369 [2021-03-26 13:26:40,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 185 transitions, 9015 flow. Second operand has 3 states, 3 states have (on average 366.6666666666667) internal successors, (1100), 3 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:40,449 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:26:40,449 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 369 [2021-03-26 13:26:40,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:26:40,516 INFO L129 PetriNetUnfolder]: 0/184 cut-off events. [2021-03-26 13:26:40,516 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:40,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4646 conditions, 184 events. 0/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 189 event pairs, 0 based on Foata normal form. 92/276 useless extension candidates. Maximal degree in co-relation 0. Up to 92 conditions per place. [2021-03-26 13:26:40,517 INFO L132 encePairwiseOnDemand]: 367/369 looper letters, 0 selfloop transitions, 1 changer transitions 0/184 dead transitions. [2021-03-26 13:26:40,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 184 transitions, 9015 flow [2021-03-26 13:26:40,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:26:40,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:26:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1100 transitions. [2021-03-26 13:26:40,518 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.993676603432701 [2021-03-26 13:26:40,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1100 transitions. [2021-03-26 13:26:40,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1100 transitions. [2021-03-26 13:26:40,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:26:40,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1100 transitions. [2021-03-26 13:26:40,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.6666666666667) internal successors, (1100), 3 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:40,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:40,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:40,520 INFO L185 Difference]: Start difference. First operand has 368 places, 185 transitions, 9015 flow. Second operand 3 states and 1100 transitions. [2021-03-26 13:26:40,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 184 transitions, 9015 flow [2021-03-26 13:26:40,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 184 transitions, 825 flow, removed 4095 selfloop flow, removed 0 redundant places. [2021-03-26 13:26:40,810 INFO L241 Difference]: Finished difference. Result has 369 places, 184 transitions, 825 flow [2021-03-26 13:26:40,811 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=825, PETRI_PLACES=369, PETRI_TRANSITIONS=184} [2021-03-26 13:26:40,811 INFO L343 CegarLoopForPetriNet]: 368 programPoint places, 1 predicate places. [2021-03-26 13:26:40,811 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:26:40,811 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 369 places, 184 transitions, 825 flow [2021-03-26 13:26:40,811 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 369 places, 184 transitions, 825 flow [2021-03-26 13:26:40,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 369 places, 184 transitions, 825 flow [2021-03-26 13:26:40,836 INFO L129 PetriNetUnfolder]: 0/184 cut-off events. [2021-03-26 13:26:40,837 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:40,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 184 events. 0/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 189 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 0. Up to 92 conditions per place. [2021-03-26 13:26:40,842 INFO L142 LiptonReduction]: Number of co-enabled transitions 16562 [2021-03-26 13:26:40,990 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:26:40,990 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:26:40,991 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 180 [2021-03-26 13:26:40,991 INFO L480 AbstractCegarLoop]: Abstraction has has 369 places, 184 transitions, 825 flow [2021-03-26 13:26:40,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 366.6666666666667) internal successors, (1100), 3 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:26:40,991 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:26:40,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:26:40,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-03-26 13:26:40,991 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:26:40,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:26:40,992 INFO L82 PathProgramCache]: Analyzing trace with hash 815608456, now seen corresponding path program 1 times [2021-03-26 13:26:40,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:26:40,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140085740] [2021-03-26 13:26:40,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:26:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:26:41,017 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:26:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:26:41,019 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:26:41,042 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:26:41,042 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:26:41,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-03-26 13:26:41,042 WARN L342 ceAbstractionStarter]: 91 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:26:41,042 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 92 thread instances. [2021-03-26 13:26:41,248 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:26:41,248 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:26:41,249 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:26:41,249 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:26:41,249 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:26:41,249 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:26:41,249 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:26:41,249 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:26:41,249 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:26:41,249 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:26:41,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 466 places, 281 transitions, 9394 flow [2021-03-26 13:26:41,417 INFO L129 PetriNetUnfolder]: 0/557 cut-off events. [2021-03-26 13:26:41,417 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:41,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5112 conditions, 557 events. 0/557 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2112 event pairs, 0 based on Foata normal form. 0/464 useless extension candidates. Maximal degree in co-relation 0. Up to 93 conditions per place. [2021-03-26 13:26:41,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 466 places, 281 transitions, 9394 flow [2021-03-26 13:26:41,420 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 279 transitions, 9390 flow [2021-03-26 13:26:41,420 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:26:41,420 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 464 places, 279 transitions, 9390 flow [2021-03-26 13:26:41,420 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 464 places, 279 transitions, 9390 flow [2021-03-26 13:26:41,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 464 places, 279 transitions, 9390 flow [2021-03-26 13:26:41,523 INFO L129 PetriNetUnfolder]: 0/371 cut-off events. [2021-03-26 13:26:41,523 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:26:41,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4926 conditions, 371 events. 0/371 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1140 event pairs, 0 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 0. Up to 93 conditions per place. [2021-03-26 13:26:41,567 INFO L142 LiptonReduction]: Number of co-enabled transitions 50968 [2021-03-26 13:27:21,728 INFO L154 LiptonReduction]: Checked pairs total: 21114 [2021-03-26 13:27:21,728 INFO L156 LiptonReduction]: Total number of compositions: 92 [2021-03-26 13:27:21,728 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40308 [2021-03-26 13:27:21,729 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-26 13:27:21,729 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:27:21,729 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:27:21,729 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:27:21,729 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:27:21,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:27:21,729 INFO L82 PathProgramCache]: Analyzing trace with hash 560419, now seen corresponding path program 1 times [2021-03-26 13:27:21,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:27:21,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597322989] [2021-03-26 13:27:21,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:27:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:27:21,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:27:21,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:27:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:27:21,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597322989] [2021-03-26 13:27:21,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:27:21,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:27:21,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991353672] [2021-03-26 13:27:21,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:27:21,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:27:21,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:27:21,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:27:21,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 373 [2021-03-26 13:27:21,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 187 transitions, 9206 flow. Second operand has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 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) [2021-03-26 13:27:21,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:27:21,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 373 [2021-03-26 13:27:21,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:27:21,833 INFO L129 PetriNetUnfolder]: 0/186 cut-off events. [2021-03-26 13:27:21,833 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:27:21,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4743 conditions, 186 events. 0/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 228 event pairs, 0 based on Foata normal form. 93/279 useless extension candidates. Maximal degree in co-relation 0. Up to 93 conditions per place. [2021-03-26 13:27:21,834 INFO L132 encePairwiseOnDemand]: 371/373 looper letters, 0 selfloop transitions, 1 changer transitions 0/186 dead transitions. [2021-03-26 13:27:21,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 186 transitions, 9206 flow [2021-03-26 13:27:21,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:27:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:27:21,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1112 transitions. [2021-03-26 13:27:21,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9937444146559428 [2021-03-26 13:27:21,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1112 transitions. [2021-03-26 13:27:21,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1112 transitions. [2021-03-26 13:27:21,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:27:21,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1112 transitions. [2021-03-26 13:27:21,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 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) [2021-03-26 13:27:21,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 373.0) internal successors, (1492), 4 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:27:21,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 373.0) internal successors, (1492), 4 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:27:21,837 INFO L185 Difference]: Start difference. First operand has 372 places, 187 transitions, 9206 flow. Second operand 3 states and 1112 transitions. [2021-03-26 13:27:21,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 186 transitions, 9206 flow [2021-03-26 13:27:22,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 186 transitions, 834 flow, removed 4186 selfloop flow, removed 0 redundant places. [2021-03-26 13:27:22,143 INFO L241 Difference]: Finished difference. Result has 373 places, 186 transitions, 834 flow [2021-03-26 13:27:22,143 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=834, PETRI_PLACES=373, PETRI_TRANSITIONS=186} [2021-03-26 13:27:22,143 INFO L343 CegarLoopForPetriNet]: 372 programPoint places, 1 predicate places. [2021-03-26 13:27:22,144 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:27:22,144 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 186 transitions, 834 flow [2021-03-26 13:27:22,144 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 186 transitions, 834 flow [2021-03-26 13:27:22,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 373 places, 186 transitions, 834 flow [2021-03-26 13:27:22,170 INFO L129 PetriNetUnfolder]: 0/186 cut-off events. [2021-03-26 13:27:22,170 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:27:22,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 186 events. 0/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 180 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 0. Up to 93 conditions per place. [2021-03-26 13:27:22,174 INFO L142 LiptonReduction]: Number of co-enabled transitions 16928 [2021-03-26 13:27:22,185 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:27:22,185 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:27:22,185 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-26 13:27:22,185 INFO L480 AbstractCegarLoop]: Abstraction has has 373 places, 186 transitions, 834 flow [2021-03-26 13:27:22,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 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) [2021-03-26 13:27:22,186 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:27:22,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:27:22,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-03-26 13:27:22,186 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:27:22,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:27:22,186 INFO L82 PathProgramCache]: Analyzing trace with hash 680422194, now seen corresponding path program 1 times [2021-03-26 13:27:22,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:27:22,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136721362] [2021-03-26 13:27:22,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:27:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:27:22,206 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:27:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:27:22,208 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:27:22,225 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:27:22,226 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:27:22,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-03-26 13:27:22,226 WARN L342 ceAbstractionStarter]: 92 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:27:22,226 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 93 thread instances. [2021-03-26 13:27:22,388 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:27:22,389 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:27:22,389 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:27:22,389 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:27:22,389 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:27:22,389 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:27:22,389 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:27:22,389 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:27:22,389 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:27:22,389 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:27:22,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 471 places, 284 transitions, 9589 flow [2021-03-26 13:27:22,520 INFO L129 PetriNetUnfolder]: 0/563 cut-off events. [2021-03-26 13:27:22,520 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:27:22,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5214 conditions, 563 events. 0/563 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2093 event pairs, 0 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 0. Up to 94 conditions per place. [2021-03-26 13:27:22,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 471 places, 284 transitions, 9589 flow [2021-03-26 13:27:22,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 469 places, 282 transitions, 9585 flow [2021-03-26 13:27:22,524 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:27:22,524 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 469 places, 282 transitions, 9585 flow [2021-03-26 13:27:22,524 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 469 places, 282 transitions, 9585 flow [2021-03-26 13:27:22,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 469 places, 282 transitions, 9585 flow [2021-03-26 13:27:22,632 INFO L129 PetriNetUnfolder]: 0/375 cut-off events. [2021-03-26 13:27:22,632 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:27:22,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5026 conditions, 375 events. 0/375 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1039 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 0. Up to 94 conditions per place. [2021-03-26 13:27:22,678 INFO L142 LiptonReduction]: Number of co-enabled transitions 52080 [2021-03-26 13:28:04,421 INFO L154 LiptonReduction]: Checked pairs total: 21576 [2021-03-26 13:28:04,421 INFO L156 LiptonReduction]: Total number of compositions: 93 [2021-03-26 13:28:04,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41897 [2021-03-26 13:28:04,422 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 13:28:04,422 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:28:04,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:28:04,422 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-26 13:28:04,422 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:28:04,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:28:04,422 INFO L82 PathProgramCache]: Analyzing trace with hash 572451, now seen corresponding path program 1 times [2021-03-26 13:28:04,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:28:04,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45911738] [2021-03-26 13:28:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:28:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:28:04,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:28:04,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:28:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 13:28:04,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45911738] [2021-03-26 13:28:04,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:28:04,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:28:04,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004525657] [2021-03-26 13:28:04,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:28:04,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:28:04,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:28:04,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:28:04,460 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 377 [2021-03-26 13:28:04,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 189 transitions, 9399 flow. Second operand has 3 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:28:04,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:28:04,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 377 [2021-03-26 13:28:04,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:28:04,588 INFO L129 PetriNetUnfolder]: 0/188 cut-off events. [2021-03-26 13:28:04,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:28:04,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4841 conditions, 188 events. 0/188 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 205 event pairs, 0 based on Foata normal form. 94/282 useless extension candidates. Maximal degree in co-relation 0. Up to 94 conditions per place. [2021-03-26 13:28:04,588 INFO L132 encePairwiseOnDemand]: 375/377 looper letters, 0 selfloop transitions, 1 changer transitions 0/188 dead transitions. [2021-03-26 13:28:04,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 188 transitions, 9399 flow [2021-03-26 13:28:04,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:28:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:28:04,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1124 transitions. [2021-03-26 13:28:04,589 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9938107869142352 [2021-03-26 13:28:04,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1124 transitions. [2021-03-26 13:28:04,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1124 transitions. [2021-03-26 13:28:04,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:28:04,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1124 transitions. [2021-03-26 13:28:04,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:28:04,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:28:04,593 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:28:04,593 INFO L185 Difference]: Start difference. First operand has 376 places, 189 transitions, 9399 flow. Second operand 3 states and 1124 transitions. [2021-03-26 13:28:04,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 188 transitions, 9399 flow [2021-03-26 13:28:04,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 188 transitions, 843 flow, removed 4278 selfloop flow, removed 0 redundant places. [2021-03-26 13:28:04,911 INFO L241 Difference]: Finished difference. Result has 377 places, 188 transitions, 843 flow [2021-03-26 13:28:04,911 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=843, PETRI_PLACES=377, PETRI_TRANSITIONS=188} [2021-03-26 13:28:04,911 INFO L343 CegarLoopForPetriNet]: 376 programPoint places, 1 predicate places. [2021-03-26 13:28:04,911 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:28:04,911 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 377 places, 188 transitions, 843 flow [2021-03-26 13:28:04,912 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 377 places, 188 transitions, 843 flow [2021-03-26 13:28:04,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 377 places, 188 transitions, 843 flow [2021-03-26 13:28:04,938 INFO L129 PetriNetUnfolder]: 0/188 cut-off events. [2021-03-26 13:28:04,938 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:28:04,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 188 events. 0/188 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 183 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 0. Up to 94 conditions per place. [2021-03-26 13:28:04,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 17298 [2021-03-26 13:28:04,960 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:28:04,960 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:28:04,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-26 13:28:04,960 INFO L480 AbstractCegarLoop]: Abstraction has has 377 places, 188 transitions, 843 flow [2021-03-26 13:28:04,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:28:04,960 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:28:04,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:28:04,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-03-26 13:28:04,961 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:28:04,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:28:04,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1058408339, now seen corresponding path program 1 times [2021-03-26 13:28:04,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:28:04,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161644003] [2021-03-26 13:28:04,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:28:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:28:04,982 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:28:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:28:04,984 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:28:05,002 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:28:05,002 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:28:05,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-03-26 13:28:05,002 WARN L342 ceAbstractionStarter]: 93 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:28:05,003 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 94 thread instances. [2021-03-26 13:28:05,170 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:28:05,170 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:28:05,170 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:28:05,171 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:28:05,171 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:28:05,171 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:28:05,171 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:28:05,171 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:28:05,171 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:28:05,171 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:28:05,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 476 places, 287 transitions, 9786 flow [2021-03-26 13:28:05,305 INFO L129 PetriNetUnfolder]: 0/569 cut-off events. [2021-03-26 13:28:05,305 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:28:05,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5317 conditions, 569 events. 0/569 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2098 event pairs, 0 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 0. Up to 95 conditions per place. [2021-03-26 13:28:05,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 476 places, 287 transitions, 9786 flow [2021-03-26 13:28:05,308 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 474 places, 285 transitions, 9782 flow [2021-03-26 13:28:05,308 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:28:05,309 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 474 places, 285 transitions, 9782 flow [2021-03-26 13:28:05,309 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 474 places, 285 transitions, 9782 flow [2021-03-26 13:28:05,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 474 places, 285 transitions, 9782 flow [2021-03-26 13:28:05,417 INFO L129 PetriNetUnfolder]: 0/379 cut-off events. [2021-03-26 13:28:05,417 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:28:05,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5127 conditions, 379 events. 0/379 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1177 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 0. Up to 95 conditions per place. [2021-03-26 13:28:05,463 INFO L142 LiptonReduction]: Number of co-enabled transitions 53204 Received shutdown request... [2021-03-26 13:28:29,814 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-26 13:28:29,816 WARN L224 ceAbstractionStarter]: Timeout [2021-03-26 13:28:29,816 INFO L202 PluginConnector]: Adding new model fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 01:28:29 BasicIcfg [2021-03-26 13:28:29,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 13:28:29,817 INFO L168 Benchmark]: Toolchain (without parser) took 774882.50 ms. Allocated memory was 352.3 MB in the beginning and 3.1 GB in the end (delta: 2.7 GB). Free memory was 332.0 MB in the beginning and 2.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-03-26 13:28:29,817 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 352.3 MB. Free memory is still 333.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:28:29,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.14 ms. Allocated memory is still 352.3 MB. Free memory was 332.0 MB in the beginning and 330.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 13:28:29,817 INFO L168 Benchmark]: Boogie Preprocessor took 16.10 ms. Allocated memory is still 352.3 MB. Free memory was 330.5 MB in the beginning and 329.6 MB in the end (delta: 840.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:28:29,817 INFO L168 Benchmark]: RCFGBuilder took 216.39 ms. Allocated memory is still 352.3 MB. Free memory was 329.6 MB in the beginning and 321.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-26 13:28:29,817 INFO L168 Benchmark]: TraceAbstraction took 774614.58 ms. Allocated memory was 352.3 MB in the beginning and 3.1 GB in the end (delta: 2.7 GB). Free memory was 321.1 MB in the beginning and 2.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-03-26 13:28:29,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 352.3 MB. Free memory is still 333.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.14 ms. Allocated memory is still 352.3 MB. Free memory was 332.0 MB in the beginning and 330.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.10 ms. Allocated memory is still 352.3 MB. Free memory was 330.5 MB in the beginning and 329.6 MB in the end (delta: 840.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 216.39 ms. Allocated memory is still 352.3 MB. Free memory was 329.6 MB in the beginning and 321.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 774614.58 ms. Allocated memory was 352.3 MB in the beginning and 3.1 GB in the end (delta: 2.7 GB). Free memory was 321.1 MB in the beginning and 2.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.5ms, 9 PlacesBefore, 8 PlacesAfterwards, 6 TransitionsBefore, 5 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6ms, 9 PlacesBefore, 9 PlacesAfterwards, 4 TransitionsBefore, 4 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.2ms, 14 PlacesBefore, 12 PlacesAfterwards, 9 TransitionsBefore, 7 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3ms, 13 PlacesBefore, 13 PlacesAfterwards, 6 TransitionsBefore, 6 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 325.3ms, 19 PlacesBefore, 16 PlacesAfterwards, 12 TransitionsBefore, 9 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 21 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, positive: 21, positive conditional: 0, positive unconditional: 21, 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: 21, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 85, positive: 85, positive conditional: 0, positive unconditional: 85, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7ms, 17 PlacesBefore, 17 PlacesAfterwards, 8 TransitionsBefore, 8 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 107.7ms, 24 PlacesBefore, 20 PlacesAfterwards, 15 TransitionsBefore, 11 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, 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: 38, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 38, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 38, unknown conditional: 0, unknown unconditional: 38] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4ms, 21 PlacesBefore, 21 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 212.7ms, 29 PlacesBefore, 24 PlacesAfterwards, 18 TransitionsBefore, 13 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, positive: 60, positive conditional: 60, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 60, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 60, positive: 60, positive conditional: 0, positive unconditional: 60, 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: 60, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 60, unknown conditional: 0, unknown unconditional: 60] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4ms, 25 PlacesBefore, 25 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 295.2ms, 34 PlacesBefore, 28 PlacesAfterwards, 21 TransitionsBefore, 15 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 87 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 87, positive: 87, positive conditional: 87, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 87, positive: 87, positive conditional: 0, positive unconditional: 87, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 87, positive conditional: 0, positive unconditional: 87, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 87, positive: 87, positive conditional: 0, positive unconditional: 87, 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: 87, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 238, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 87, unknown conditional: 0, unknown unconditional: 87] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2ms, 29 PlacesBefore, 29 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 186.1ms, 39 PlacesBefore, 32 PlacesAfterwards, 24 TransitionsBefore, 17 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 119 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 119, positive: 119, positive conditional: 119, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 119, positive: 119, positive conditional: 0, positive unconditional: 119, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 119, positive: 119, positive conditional: 0, positive unconditional: 119, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 119, positive: 119, positive conditional: 0, positive unconditional: 119, 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: 119, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 123, positive: 123, positive conditional: 0, positive unconditional: 123, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 119, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 119, unknown conditional: 0, unknown unconditional: 119] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2ms, 33 PlacesBefore, 33 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 98 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 278.3ms, 44 PlacesBefore, 36 PlacesAfterwards, 27 TransitionsBefore, 19 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 156 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 156, positive: 156, positive conditional: 156, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 156, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 156, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 156, positive: 156, positive conditional: 0, positive unconditional: 156, 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: 156, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 162, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 156, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 156, unknown conditional: 0, unknown unconditional: 156] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 156, Positive conditional cache size: 0, Positive unconditional cache size: 156, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9ms, 37 PlacesBefore, 37 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 156, Positive conditional cache size: 0, Positive unconditional cache size: 156, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 232.7ms, 49 PlacesBefore, 40 PlacesAfterwards, 30 TransitionsBefore, 21 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 198 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 198, positive: 198, positive conditional: 198, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 198, positive: 198, positive conditional: 0, positive unconditional: 198, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 198, positive: 198, positive conditional: 0, positive unconditional: 198, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 198, positive: 198, positive conditional: 0, positive unconditional: 198, 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: 198, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 155, positive: 155, positive conditional: 0, positive unconditional: 155, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 198, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 198, unknown conditional: 0, unknown unconditional: 198] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 198, Positive conditional cache size: 0, Positive unconditional cache size: 198, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6ms, 41 PlacesBefore, 41 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 162 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 198, Positive conditional cache size: 0, Positive unconditional cache size: 198, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.6ms, 54 PlacesBefore, 44 PlacesAfterwards, 33 TransitionsBefore, 23 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 245 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 245, positive: 245, positive conditional: 245, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 245, positive: 245, positive conditional: 0, positive unconditional: 245, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 245, positive: 245, positive conditional: 0, positive unconditional: 245, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 245, positive: 245, positive conditional: 0, positive unconditional: 245, 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: 245, positive: 155, positive conditional: 0, positive unconditional: 155, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 90, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 168, positive: 168, positive conditional: 0, positive unconditional: 168, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 245, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 245, unknown conditional: 0, unknown unconditional: 245] , Statistics on independence cache: Total cache size (in pairs): 245, Positive cache size: 245, Positive conditional cache size: 0, Positive unconditional cache size: 245, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5ms, 45 PlacesBefore, 45 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 245, Positive cache size: 245, Positive conditional cache size: 0, Positive unconditional cache size: 245, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 649.7ms, 59 PlacesBefore, 48 PlacesAfterwards, 36 TransitionsBefore, 25 TransitionsAfterwards, 748 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 297 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 297, positive: 297, positive conditional: 297, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 297, positive: 297, positive conditional: 0, positive unconditional: 297, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 297, positive: 297, positive conditional: 0, positive unconditional: 297, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 297, positive: 297, positive conditional: 0, positive unconditional: 297, 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: 297, positive: 187, positive conditional: 0, positive unconditional: 187, negative: 110, negative conditional: 0, negative unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 110, positive: 110, positive conditional: 0, positive unconditional: 110, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 457, positive: 457, positive conditional: 0, positive unconditional: 457, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 297, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 297, unknown conditional: 0, unknown unconditional: 297] , Statistics on independence cache: Total cache size (in pairs): 297, Positive cache size: 297, Positive conditional cache size: 0, Positive unconditional cache size: 297, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4ms, 49 PlacesBefore, 49 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 297, Positive cache size: 297, Positive conditional cache size: 0, Positive unconditional cache size: 297, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 322.2ms, 64 PlacesBefore, 52 PlacesAfterwards, 39 TransitionsBefore, 27 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 354 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 354, positive: 354, positive conditional: 354, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 354, positive: 354, positive conditional: 0, positive unconditional: 354, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 354, positive: 354, positive conditional: 0, positive unconditional: 354, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 354, positive: 354, positive conditional: 0, positive unconditional: 354, 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: 354, positive: 222, positive conditional: 0, positive unconditional: 222, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 132, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 242, positive: 242, positive conditional: 0, positive unconditional: 242, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 354, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 354, unknown conditional: 0, unknown unconditional: 354] , Statistics on independence cache: Total cache size (in pairs): 354, Positive cache size: 354, Positive conditional cache size: 0, Positive unconditional cache size: 354, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5ms, 53 PlacesBefore, 53 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 354, Positive cache size: 354, Positive conditional cache size: 0, Positive unconditional cache size: 354, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 359.7ms, 69 PlacesBefore, 56 PlacesAfterwards, 42 TransitionsBefore, 29 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 416 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 416, positive: 416, positive conditional: 416, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 416, positive: 416, positive conditional: 0, positive unconditional: 416, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 416, positive: 416, positive conditional: 0, positive unconditional: 416, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 416, positive: 416, positive conditional: 0, positive unconditional: 416, 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: 416, positive: 260, positive conditional: 0, positive unconditional: 260, negative: 156, negative conditional: 0, negative unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 156, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 268, positive: 268, positive conditional: 0, positive unconditional: 268, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 416, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 416, unknown conditional: 0, unknown unconditional: 416] , Statistics on independence cache: Total cache size (in pairs): 416, Positive cache size: 416, Positive conditional cache size: 0, Positive unconditional cache size: 416, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3ms, 57 PlacesBefore, 57 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 338 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 416, Positive cache size: 416, Positive conditional cache size: 0, Positive unconditional cache size: 416, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 374.8ms, 74 PlacesBefore, 60 PlacesAfterwards, 45 TransitionsBefore, 31 TransitionsAfterwards, 1204 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 14 TotalNumberOfCompositions, 483 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 483, positive: 483, positive conditional: 483, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 483, positive: 483, positive conditional: 0, positive unconditional: 483, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 483, positive: 483, positive conditional: 0, positive unconditional: 483, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, positive: 483, positive conditional: 0, positive unconditional: 483, 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: 483, positive: 301, positive conditional: 0, positive unconditional: 301, negative: 182, negative conditional: 0, negative unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 182, positive: 182, positive conditional: 0, positive unconditional: 182, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 282, positive: 282, positive conditional: 0, positive unconditional: 282, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 483, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 483, unknown conditional: 0, unknown unconditional: 483] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 483, Positive conditional cache size: 0, Positive unconditional cache size: 483, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3ms, 61 PlacesBefore, 61 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 483, Positive conditional cache size: 0, Positive unconditional cache size: 483, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 406.2ms, 79 PlacesBefore, 64 PlacesAfterwards, 48 TransitionsBefore, 33 TransitionsAfterwards, 1380 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 555 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 555, positive: 555, positive conditional: 555, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 555, positive: 555, positive conditional: 0, positive unconditional: 555, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 555, positive: 555, positive conditional: 0, positive unconditional: 555, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 555, positive: 555, positive conditional: 0, positive unconditional: 555, 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: 555, positive: 345, positive conditional: 0, positive unconditional: 345, negative: 210, negative conditional: 0, negative unconditional: 210, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 210, positive: 210, positive conditional: 0, positive unconditional: 210, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 302, positive: 302, positive conditional: 0, positive unconditional: 302, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 555, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 555, unknown conditional: 0, unknown unconditional: 555] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 555, Positive conditional cache size: 0, Positive unconditional cache size: 555, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3ms, 65 PlacesBefore, 65 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 555, Positive conditional cache size: 0, Positive unconditional cache size: 555, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 448.5ms, 84 PlacesBefore, 68 PlacesAfterwards, 51 TransitionsBefore, 35 TransitionsAfterwards, 1568 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 16 TotalNumberOfCompositions, 632 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 632, positive: 632, positive conditional: 632, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 632, positive: 632, positive conditional: 0, positive unconditional: 632, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 632, positive: 632, positive conditional: 0, positive unconditional: 632, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 632, positive: 632, positive conditional: 0, positive unconditional: 632, 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: 632, positive: 392, positive conditional: 0, positive unconditional: 392, negative: 240, negative conditional: 0, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 240, positive: 240, positive conditional: 0, positive unconditional: 240, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 348, positive: 348, positive conditional: 0, positive unconditional: 348, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 632, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 632, unknown conditional: 0, unknown unconditional: 632] , Statistics on independence cache: Total cache size (in pairs): 632, Positive cache size: 632, Positive conditional cache size: 0, Positive unconditional cache size: 632, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8ms, 69 PlacesBefore, 69 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 512 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 632, Positive cache size: 632, Positive conditional cache size: 0, Positive unconditional cache size: 632, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 533.9ms, 89 PlacesBefore, 72 PlacesAfterwards, 54 TransitionsBefore, 37 TransitionsAfterwards, 1768 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 17 TotalNumberOfCompositions, 714 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 714, positive: 714, positive conditional: 714, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 714, positive: 714, positive conditional: 0, positive unconditional: 714, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 714, positive: 714, positive conditional: 0, positive unconditional: 714, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 714, positive: 714, positive conditional: 0, positive unconditional: 714, 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: 714, positive: 442, positive conditional: 0, positive unconditional: 442, negative: 272, negative conditional: 0, negative unconditional: 272, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 272, positive: 272, positive conditional: 0, positive unconditional: 272, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 407, positive: 407, positive conditional: 0, positive unconditional: 407, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 714, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 714, unknown conditional: 0, unknown unconditional: 714] , Statistics on independence cache: Total cache size (in pairs): 714, Positive cache size: 714, Positive conditional cache size: 0, Positive unconditional cache size: 714, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6ms, 73 PlacesBefore, 73 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 578 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 714, Positive cache size: 714, Positive conditional cache size: 0, Positive unconditional cache size: 714, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 658.5ms, 94 PlacesBefore, 76 PlacesAfterwards, 57 TransitionsBefore, 39 TransitionsAfterwards, 1980 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 18 TotalNumberOfCompositions, 801 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 801, positive: 801, positive conditional: 801, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 801, positive: 801, positive conditional: 0, positive unconditional: 801, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 801, positive: 801, positive conditional: 0, positive unconditional: 801, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 801, positive: 801, positive conditional: 0, positive unconditional: 801, 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: 801, positive: 495, positive conditional: 0, positive unconditional: 495, negative: 306, negative conditional: 0, negative unconditional: 306, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 306, positive: 306, positive conditional: 0, positive unconditional: 306, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 546, positive: 546, positive conditional: 0, positive unconditional: 546, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 801, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 801, unknown conditional: 0, unknown unconditional: 801] , Statistics on independence cache: Total cache size (in pairs): 801, Positive cache size: 801, Positive conditional cache size: 0, Positive unconditional cache size: 801, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6ms, 77 PlacesBefore, 77 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 648 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 801, Positive cache size: 801, Positive conditional cache size: 0, Positive unconditional cache size: 801, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 649.7ms, 99 PlacesBefore, 80 PlacesAfterwards, 60 TransitionsBefore, 41 TransitionsAfterwards, 2204 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 19 TotalNumberOfCompositions, 893 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 893, positive: 893, positive conditional: 893, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 893, positive: 893, positive conditional: 0, positive unconditional: 893, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 893, positive: 893, positive conditional: 0, positive unconditional: 893, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 893, positive: 893, positive conditional: 0, positive unconditional: 893, 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: 893, positive: 551, positive conditional: 0, positive unconditional: 551, negative: 342, negative conditional: 0, negative unconditional: 342, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 342, positive: 342, positive conditional: 0, positive unconditional: 342, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 524, positive: 524, positive conditional: 0, positive unconditional: 524, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 893, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 893, unknown conditional: 0, unknown unconditional: 893] , Statistics on independence cache: Total cache size (in pairs): 893, Positive cache size: 893, Positive conditional cache size: 0, Positive unconditional cache size: 893, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3ms, 81 PlacesBefore, 81 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 722 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 893, Positive cache size: 893, Positive conditional cache size: 0, Positive unconditional cache size: 893, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 726.3ms, 104 PlacesBefore, 84 PlacesAfterwards, 63 TransitionsBefore, 43 TransitionsAfterwards, 2440 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 20 TotalNumberOfCompositions, 990 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 990, positive: 990, positive conditional: 990, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 990, positive: 990, positive conditional: 0, positive unconditional: 990, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 990, positive: 990, positive conditional: 0, positive unconditional: 990, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 990, positive: 990, positive conditional: 0, positive unconditional: 990, 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: 990, positive: 610, positive conditional: 0, positive unconditional: 610, negative: 380, negative conditional: 0, negative unconditional: 380, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 380, positive: 380, positive conditional: 0, positive unconditional: 380, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 589, positive: 589, positive conditional: 0, positive unconditional: 589, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 990, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 990, unknown conditional: 0, unknown unconditional: 990] , Statistics on independence cache: Total cache size (in pairs): 990, Positive cache size: 990, Positive conditional cache size: 0, Positive unconditional cache size: 990, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8ms, 85 PlacesBefore, 85 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 990, Positive cache size: 990, Positive conditional cache size: 0, Positive unconditional cache size: 990, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 757.9ms, 109 PlacesBefore, 88 PlacesAfterwards, 66 TransitionsBefore, 45 TransitionsAfterwards, 2688 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 21 TotalNumberOfCompositions, 1092 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1092, positive: 1092, positive conditional: 1092, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1092, positive: 1092, positive conditional: 0, positive unconditional: 1092, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1092, positive: 1092, positive conditional: 0, positive unconditional: 1092, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1092, positive: 1092, positive conditional: 0, positive unconditional: 1092, 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: 1092, positive: 672, positive conditional: 0, positive unconditional: 672, negative: 420, negative conditional: 0, negative unconditional: 420, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 420, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 625, positive: 625, positive conditional: 0, positive unconditional: 625, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1092, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1092, unknown conditional: 0, unknown unconditional: 1092] , Statistics on independence cache: Total cache size (in pairs): 1092, Positive cache size: 1092, Positive conditional cache size: 0, Positive unconditional cache size: 1092, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8ms, 89 PlacesBefore, 89 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1092, Positive cache size: 1092, Positive conditional cache size: 0, Positive unconditional cache size: 1092, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 840.7ms, 114 PlacesBefore, 92 PlacesAfterwards, 69 TransitionsBefore, 47 TransitionsAfterwards, 2948 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 22 TotalNumberOfCompositions, 1199 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1199, positive: 1199, positive conditional: 1199, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1199, positive: 1199, positive conditional: 0, positive unconditional: 1199, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1199, positive: 1199, positive conditional: 0, positive unconditional: 1199, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1199, positive: 1199, positive conditional: 0, positive unconditional: 1199, 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: 1199, positive: 737, positive conditional: 0, positive unconditional: 737, negative: 462, negative conditional: 0, negative unconditional: 462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 462, positive: 462, positive conditional: 0, positive unconditional: 462, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 700, positive: 700, positive conditional: 0, positive unconditional: 700, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1199, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1199, unknown conditional: 0, unknown unconditional: 1199] , Statistics on independence cache: Total cache size (in pairs): 1199, Positive cache size: 1199, Positive conditional cache size: 0, Positive unconditional cache size: 1199, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2ms, 93 PlacesBefore, 93 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 968 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1199, Positive cache size: 1199, Positive conditional cache size: 0, Positive unconditional cache size: 1199, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 934.9ms, 119 PlacesBefore, 96 PlacesAfterwards, 72 TransitionsBefore, 49 TransitionsAfterwards, 3220 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 23 TotalNumberOfCompositions, 1311 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1311, positive: 1311, positive conditional: 1311, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1311, positive: 1311, positive conditional: 0, positive unconditional: 1311, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1311, positive: 1311, positive conditional: 0, positive unconditional: 1311, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1311, positive: 1311, positive conditional: 0, positive unconditional: 1311, 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: 1311, positive: 805, positive conditional: 0, positive unconditional: 805, negative: 506, negative conditional: 0, negative unconditional: 506, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 506, positive: 506, positive conditional: 0, positive unconditional: 506, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 774, positive: 774, positive conditional: 0, positive unconditional: 774, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1311, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1311, unknown conditional: 0, unknown unconditional: 1311] , Statistics on independence cache: Total cache size (in pairs): 1311, Positive cache size: 1311, Positive conditional cache size: 0, Positive unconditional cache size: 1311, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4ms, 97 PlacesBefore, 97 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1058 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1311, Positive cache size: 1311, Positive conditional cache size: 0, Positive unconditional cache size: 1311, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1050.9ms, 124 PlacesBefore, 100 PlacesAfterwards, 75 TransitionsBefore, 51 TransitionsAfterwards, 3504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 24 TotalNumberOfCompositions, 1428 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1428, positive: 1428, positive conditional: 1428, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1428, positive: 1428, positive conditional: 0, positive unconditional: 1428, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1428, positive: 1428, positive conditional: 0, positive unconditional: 1428, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1428, positive: 1428, positive conditional: 0, positive unconditional: 1428, 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: 1428, positive: 876, positive conditional: 0, positive unconditional: 876, negative: 552, negative conditional: 0, negative unconditional: 552, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 552, positive: 552, positive conditional: 0, positive unconditional: 552, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 865, positive: 865, positive conditional: 0, positive unconditional: 865, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1428, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1428, unknown conditional: 0, unknown unconditional: 1428] , Statistics on independence cache: Total cache size (in pairs): 1428, Positive cache size: 1428, Positive conditional cache size: 0, Positive unconditional cache size: 1428, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5ms, 101 PlacesBefore, 101 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1428, Positive cache size: 1428, Positive conditional cache size: 0, Positive unconditional cache size: 1428, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 997.8ms, 129 PlacesBefore, 104 PlacesAfterwards, 78 TransitionsBefore, 53 TransitionsAfterwards, 3800 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 25 TotalNumberOfCompositions, 1550 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1550, positive: 1550, positive conditional: 1550, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1550, positive: 1550, positive conditional: 0, positive unconditional: 1550, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1550, positive: 1550, positive conditional: 0, positive unconditional: 1550, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1550, positive: 1550, positive conditional: 0, positive unconditional: 1550, 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: 1550, positive: 950, positive conditional: 0, positive unconditional: 950, negative: 600, negative conditional: 0, negative unconditional: 600, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 600, positive: 600, positive conditional: 0, positive unconditional: 600, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 822, positive: 822, positive conditional: 0, positive unconditional: 822, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1550, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1550, unknown conditional: 0, unknown unconditional: 1550] , Statistics on independence cache: Total cache size (in pairs): 1550, Positive cache size: 1550, Positive conditional cache size: 0, Positive unconditional cache size: 1550, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1ms, 105 PlacesBefore, 105 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1550, Positive cache size: 1550, Positive conditional cache size: 0, Positive unconditional cache size: 1550, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1045.4ms, 134 PlacesBefore, 108 PlacesAfterwards, 81 TransitionsBefore, 55 TransitionsAfterwards, 4108 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 26 TotalNumberOfCompositions, 1677 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1677, positive: 1677, positive conditional: 1677, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1677, positive: 1677, positive conditional: 0, positive unconditional: 1677, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1677, positive: 1677, positive conditional: 0, positive unconditional: 1677, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1677, positive: 1677, positive conditional: 0, positive unconditional: 1677, 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: 1677, positive: 1027, positive conditional: 0, positive unconditional: 1027, negative: 650, negative conditional: 0, negative unconditional: 650, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 650, positive: 650, positive conditional: 0, positive unconditional: 650, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 889, positive: 889, positive conditional: 0, positive unconditional: 889, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1677, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1677, unknown conditional: 0, unknown unconditional: 1677] , Statistics on independence cache: Total cache size (in pairs): 1677, Positive cache size: 1677, Positive conditional cache size: 0, Positive unconditional cache size: 1677, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1ms, 109 PlacesBefore, 109 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 1352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1677, Positive cache size: 1677, Positive conditional cache size: 0, Positive unconditional cache size: 1677, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1310.3ms, 139 PlacesBefore, 112 PlacesAfterwards, 84 TransitionsBefore, 57 TransitionsAfterwards, 4428 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, 1809 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1809, positive: 1809, positive conditional: 1809, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1809, positive: 1809, positive conditional: 0, positive unconditional: 1809, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1809, positive: 1809, positive conditional: 0, positive unconditional: 1809, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1809, positive: 1809, positive conditional: 0, positive unconditional: 1809, 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: 1809, positive: 1107, positive conditional: 0, positive unconditional: 1107, negative: 702, negative conditional: 0, negative unconditional: 702, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 702, positive: 702, positive conditional: 0, positive unconditional: 702, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1111, positive: 1111, positive conditional: 0, positive unconditional: 1111, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1809, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1809, unknown conditional: 0, unknown unconditional: 1809] , Statistics on independence cache: Total cache size (in pairs): 1809, Positive cache size: 1809, Positive conditional cache size: 0, Positive unconditional cache size: 1809, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3ms, 113 PlacesBefore, 113 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 1458 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1809, Positive cache size: 1809, Positive conditional cache size: 0, Positive unconditional cache size: 1809, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1323.2ms, 144 PlacesBefore, 116 PlacesAfterwards, 87 TransitionsBefore, 59 TransitionsAfterwards, 4760 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 1946 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1946, positive: 1946, positive conditional: 1946, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1946, positive: 1946, positive conditional: 0, positive unconditional: 1946, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1946, positive: 1946, positive conditional: 0, positive unconditional: 1946, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1946, positive: 1946, positive conditional: 0, positive unconditional: 1946, 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: 1946, positive: 1190, positive conditional: 0, positive unconditional: 1190, negative: 756, negative conditional: 0, negative unconditional: 756, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 756, positive: 756, positive conditional: 0, positive unconditional: 756, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1149, positive: 1149, positive conditional: 0, positive unconditional: 1149, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1946, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1946, unknown conditional: 0, unknown unconditional: 1946] , Statistics on independence cache: Total cache size (in pairs): 1946, Positive cache size: 1946, Positive conditional cache size: 0, Positive unconditional cache size: 1946, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0ms, 117 PlacesBefore, 117 PlacesAfterwards, 58 TransitionsBefore, 58 TransitionsAfterwards, 1568 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1946, Positive cache size: 1946, Positive conditional cache size: 0, Positive unconditional cache size: 1946, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1479.6ms, 149 PlacesBefore, 120 PlacesAfterwards, 90 TransitionsBefore, 61 TransitionsAfterwards, 5104 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 29 TotalNumberOfCompositions, 2088 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2088, positive: 2088, positive conditional: 2088, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2088, positive: 2088, positive conditional: 0, positive unconditional: 2088, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2088, positive: 2088, positive conditional: 0, positive unconditional: 2088, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2088, positive: 2088, positive conditional: 0, positive unconditional: 2088, 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: 2088, positive: 1276, positive conditional: 0, positive unconditional: 1276, negative: 812, negative conditional: 0, negative unconditional: 812, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 812, positive: 812, positive conditional: 0, positive unconditional: 812, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1292, positive: 1292, positive conditional: 0, positive unconditional: 1292, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2088, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2088, unknown conditional: 0, unknown unconditional: 2088] , Statistics on independence cache: Total cache size (in pairs): 2088, Positive cache size: 2088, Positive conditional cache size: 0, Positive unconditional cache size: 2088, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.2ms, 121 PlacesBefore, 121 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 1682 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2088, Positive cache size: 2088, Positive conditional cache size: 0, Positive unconditional cache size: 2088, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1475.0ms, 154 PlacesBefore, 124 PlacesAfterwards, 93 TransitionsBefore, 63 TransitionsAfterwards, 5460 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 30 TotalNumberOfCompositions, 2235 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2235, positive: 2235, positive conditional: 2235, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2235, positive: 2235, positive conditional: 0, positive unconditional: 2235, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2235, positive: 2235, positive conditional: 0, positive unconditional: 2235, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2235, positive: 2235, positive conditional: 0, positive unconditional: 2235, 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: 2235, positive: 1365, positive conditional: 0, positive unconditional: 1365, negative: 870, negative conditional: 0, negative unconditional: 870, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 870, positive: 870, positive conditional: 0, positive unconditional: 870, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1268, positive: 1268, positive conditional: 0, positive unconditional: 1268, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2235, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2235, unknown conditional: 0, unknown unconditional: 2235] , Statistics on independence cache: Total cache size (in pairs): 2235, Positive cache size: 2235, Positive conditional cache size: 0, Positive unconditional cache size: 2235, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.8ms, 125 PlacesBefore, 125 PlacesAfterwards, 62 TransitionsBefore, 62 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2235, Positive cache size: 2235, Positive conditional cache size: 0, Positive unconditional cache size: 2235, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1914.4ms, 159 PlacesBefore, 128 PlacesAfterwards, 96 TransitionsBefore, 65 TransitionsAfterwards, 5828 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 31 TotalNumberOfCompositions, 2387 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2387, positive: 2387, positive conditional: 2387, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2387, positive: 2387, positive conditional: 0, positive unconditional: 2387, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2387, positive: 2387, positive conditional: 0, positive unconditional: 2387, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2387, positive: 2387, positive conditional: 0, positive unconditional: 2387, 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: 2387, positive: 1457, positive conditional: 0, positive unconditional: 1457, negative: 930, negative conditional: 0, negative unconditional: 930, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 930, positive: 930, positive conditional: 0, positive unconditional: 930, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1704, positive: 1704, positive conditional: 0, positive unconditional: 1704, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2387, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2387, unknown conditional: 0, unknown unconditional: 2387] , Statistics on independence cache: Total cache size (in pairs): 2387, Positive cache size: 2387, Positive conditional cache size: 0, Positive unconditional cache size: 2387, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1ms, 129 PlacesBefore, 129 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1922 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2387, Positive cache size: 2387, Positive conditional cache size: 0, Positive unconditional cache size: 2387, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1771.6ms, 164 PlacesBefore, 132 PlacesAfterwards, 99 TransitionsBefore, 67 TransitionsAfterwards, 6208 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 32 TotalNumberOfCompositions, 2544 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2544, positive: 2544, positive conditional: 2544, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2544, positive: 2544, positive conditional: 0, positive unconditional: 2544, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2544, positive: 2544, positive conditional: 0, positive unconditional: 2544, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2544, positive: 2544, positive conditional: 0, positive unconditional: 2544, 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: 2544, positive: 1552, positive conditional: 0, positive unconditional: 1552, negative: 992, negative conditional: 0, negative unconditional: 992, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 992, positive: 992, positive conditional: 0, positive unconditional: 992, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1561, positive: 1561, positive conditional: 0, positive unconditional: 1561, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2544, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2544, unknown conditional: 0, unknown unconditional: 2544] , Statistics on independence cache: Total cache size (in pairs): 2544, Positive cache size: 2544, Positive conditional cache size: 0, Positive unconditional cache size: 2544, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.5ms, 133 PlacesBefore, 133 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 2048 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2544, Positive cache size: 2544, Positive conditional cache size: 0, Positive unconditional cache size: 2544, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1803.6ms, 169 PlacesBefore, 136 PlacesAfterwards, 102 TransitionsBefore, 69 TransitionsAfterwards, 6600 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 33 TotalNumberOfCompositions, 2706 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2706, positive: 2706, positive conditional: 2706, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2706, positive: 2706, positive conditional: 0, positive unconditional: 2706, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2706, positive: 2706, positive conditional: 0, positive unconditional: 2706, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2706, positive: 2706, positive conditional: 0, positive unconditional: 2706, 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: 2706, positive: 1650, positive conditional: 0, positive unconditional: 1650, negative: 1056, negative conditional: 0, negative unconditional: 1056, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1056, positive: 1056, positive conditional: 0, positive unconditional: 1056, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1566, positive: 1566, positive conditional: 0, positive unconditional: 1566, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2706, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2706, unknown conditional: 0, unknown unconditional: 2706] , Statistics on independence cache: Total cache size (in pairs): 2706, Positive cache size: 2706, Positive conditional cache size: 0, Positive unconditional cache size: 2706, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1ms, 137 PlacesBefore, 137 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 2178 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2706, Positive cache size: 2706, Positive conditional cache size: 0, Positive unconditional cache size: 2706, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1808.2ms, 174 PlacesBefore, 140 PlacesAfterwards, 105 TransitionsBefore, 71 TransitionsAfterwards, 7004 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 34 TotalNumberOfCompositions, 2873 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2873, positive: 2873, positive conditional: 2873, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2873, positive: 2873, positive conditional: 0, positive unconditional: 2873, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2873, positive: 2873, positive conditional: 0, positive unconditional: 2873, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2873, positive: 2873, positive conditional: 0, positive unconditional: 2873, 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: 2873, positive: 1751, positive conditional: 0, positive unconditional: 1751, negative: 1122, negative conditional: 0, negative unconditional: 1122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1122, positive: 1122, positive conditional: 0, positive unconditional: 1122, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1542, positive: 1542, positive conditional: 0, positive unconditional: 1542, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2873, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2873, unknown conditional: 0, unknown unconditional: 2873] , Statistics on independence cache: Total cache size (in pairs): 2873, Positive cache size: 2873, Positive conditional cache size: 0, Positive unconditional cache size: 2873, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.8ms, 141 PlacesBefore, 141 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 2312 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2873, Positive cache size: 2873, Positive conditional cache size: 0, Positive unconditional cache size: 2873, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1971.5ms, 179 PlacesBefore, 144 PlacesAfterwards, 108 TransitionsBefore, 73 TransitionsAfterwards, 7420 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 35 TotalNumberOfCompositions, 3045 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3045, positive: 3045, positive conditional: 3045, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3045, positive: 3045, positive conditional: 0, positive unconditional: 3045, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3045, positive: 3045, positive conditional: 0, positive unconditional: 3045, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3045, positive: 3045, positive conditional: 0, positive unconditional: 3045, 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: 3045, positive: 1855, positive conditional: 0, positive unconditional: 1855, negative: 1190, negative conditional: 0, negative unconditional: 1190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1190, positive: 1190, positive conditional: 0, positive unconditional: 1190, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1744, positive: 1744, positive conditional: 0, positive unconditional: 1744, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3045, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3045, unknown conditional: 0, unknown unconditional: 3045] , Statistics on independence cache: Total cache size (in pairs): 3045, Positive cache size: 3045, Positive conditional cache size: 0, Positive unconditional cache size: 3045, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4ms, 145 PlacesBefore, 145 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 2450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3045, Positive cache size: 3045, Positive conditional cache size: 0, Positive unconditional cache size: 3045, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2022.0ms, 184 PlacesBefore, 148 PlacesAfterwards, 111 TransitionsBefore, 75 TransitionsAfterwards, 7848 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 36 TotalNumberOfCompositions, 3222 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3222, positive: 3222, positive conditional: 3222, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3222, positive: 3222, positive conditional: 0, positive unconditional: 3222, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3222, positive: 3222, positive conditional: 0, positive unconditional: 3222, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3222, positive: 3222, positive conditional: 0, positive unconditional: 3222, 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: 3222, positive: 1962, positive conditional: 0, positive unconditional: 1962, negative: 1260, negative conditional: 0, negative unconditional: 1260, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1260, positive: 1260, positive conditional: 0, positive unconditional: 1260, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1783, positive: 1783, positive conditional: 0, positive unconditional: 1783, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3222, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3222, unknown conditional: 0, unknown unconditional: 3222] , Statistics on independence cache: Total cache size (in pairs): 3222, Positive cache size: 3222, Positive conditional cache size: 0, Positive unconditional cache size: 3222, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0ms, 149 PlacesBefore, 149 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 2592 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3222, Positive cache size: 3222, Positive conditional cache size: 0, Positive unconditional cache size: 3222, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2125.8ms, 189 PlacesBefore, 152 PlacesAfterwards, 114 TransitionsBefore, 77 TransitionsAfterwards, 8288 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 37 TotalNumberOfCompositions, 3404 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3404, positive: 3404, positive conditional: 3404, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3404, positive: 3404, positive conditional: 0, positive unconditional: 3404, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3404, positive: 3404, positive conditional: 0, positive unconditional: 3404, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3404, positive: 3404, positive conditional: 0, positive unconditional: 3404, 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: 3404, positive: 2072, positive conditional: 0, positive unconditional: 2072, negative: 1332, negative conditional: 0, negative unconditional: 1332, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1332, positive: 1332, positive conditional: 0, positive unconditional: 1332, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1869, positive: 1869, positive conditional: 0, positive unconditional: 1869, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3404, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3404, unknown conditional: 0, unknown unconditional: 3404] , Statistics on independence cache: Total cache size (in pairs): 3404, Positive cache size: 3404, Positive conditional cache size: 0, Positive unconditional cache size: 3404, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.8ms, 153 PlacesBefore, 153 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 2738 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3404, Positive cache size: 3404, Positive conditional cache size: 0, Positive unconditional cache size: 3404, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1988.1ms, 194 PlacesBefore, 156 PlacesAfterwards, 117 TransitionsBefore, 79 TransitionsAfterwards, 8740 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 38 TotalNumberOfCompositions, 3591 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3591, positive: 3591, positive conditional: 3591, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3591, positive: 3591, positive conditional: 0, positive unconditional: 3591, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3591, positive: 3591, positive conditional: 0, positive unconditional: 3591, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3591, positive: 3591, positive conditional: 0, positive unconditional: 3591, 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: 3591, positive: 2185, positive conditional: 0, positive unconditional: 2185, negative: 1406, negative conditional: 0, negative unconditional: 1406, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1406, positive: 1406, positive conditional: 0, positive unconditional: 1406, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1761, positive: 1761, positive conditional: 0, positive unconditional: 1761, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3591, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3591, unknown conditional: 0, unknown unconditional: 3591] , Statistics on independence cache: Total cache size (in pairs): 3591, Positive cache size: 3591, Positive conditional cache size: 0, Positive unconditional cache size: 3591, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.3ms, 157 PlacesBefore, 157 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 2888 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3591, Positive cache size: 3591, Positive conditional cache size: 0, Positive unconditional cache size: 3591, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2168.8ms, 199 PlacesBefore, 160 PlacesAfterwards, 120 TransitionsBefore, 81 TransitionsAfterwards, 9204 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 39 TotalNumberOfCompositions, 3783 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3783, positive: 3783, positive conditional: 3783, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3783, positive: 3783, positive conditional: 0, positive unconditional: 3783, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3783, positive: 3783, positive conditional: 0, positive unconditional: 3783, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3783, positive: 3783, positive conditional: 0, positive unconditional: 3783, 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: 3783, positive: 2301, positive conditional: 0, positive unconditional: 2301, negative: 1482, negative conditional: 0, negative unconditional: 1482, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1482, positive: 1482, positive conditional: 0, positive unconditional: 1482, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1927, positive: 1927, positive conditional: 0, positive unconditional: 1927, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3783, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3783, unknown conditional: 0, unknown unconditional: 3783] , Statistics on independence cache: Total cache size (in pairs): 3783, Positive cache size: 3783, Positive conditional cache size: 0, Positive unconditional cache size: 3783, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.3ms, 161 PlacesBefore, 161 PlacesAfterwards, 80 TransitionsBefore, 80 TransitionsAfterwards, 3042 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3783, Positive cache size: 3783, Positive conditional cache size: 0, Positive unconditional cache size: 3783, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2307.3ms, 204 PlacesBefore, 164 PlacesAfterwards, 123 TransitionsBefore, 83 TransitionsAfterwards, 9680 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 3980 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3980, positive: 3980, positive conditional: 3980, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3980, positive: 3980, positive conditional: 0, positive unconditional: 3980, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3980, positive: 3980, positive conditional: 0, positive unconditional: 3980, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3980, positive: 3980, positive conditional: 0, positive unconditional: 3980, 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: 3980, positive: 2420, positive conditional: 0, positive unconditional: 2420, negative: 1560, negative conditional: 0, negative unconditional: 1560, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1560, positive: 1560, positive conditional: 0, positive unconditional: 1560, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2057, positive: 2057, positive conditional: 0, positive unconditional: 2057, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3980, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3980, unknown conditional: 0, unknown unconditional: 3980] , Statistics on independence cache: Total cache size (in pairs): 3980, Positive cache size: 3980, Positive conditional cache size: 0, Positive unconditional cache size: 3980, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.9ms, 165 PlacesBefore, 165 PlacesAfterwards, 82 TransitionsBefore, 82 TransitionsAfterwards, 3200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3980, Positive cache size: 3980, Positive conditional cache size: 0, Positive unconditional cache size: 3980, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2432.1ms, 209 PlacesBefore, 168 PlacesAfterwards, 126 TransitionsBefore, 85 TransitionsAfterwards, 10168 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 4182 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4182, positive: 4182, positive conditional: 4182, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4182, positive: 4182, positive conditional: 0, positive unconditional: 4182, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4182, positive: 4182, positive conditional: 0, positive unconditional: 4182, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4182, positive: 4182, positive conditional: 0, positive unconditional: 4182, 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: 4182, positive: 2542, positive conditional: 0, positive unconditional: 2542, negative: 1640, negative conditional: 0, negative unconditional: 1640, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1640, positive: 1640, positive conditional: 0, positive unconditional: 1640, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2106, positive: 2106, positive conditional: 0, positive unconditional: 2106, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4182, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4182, unknown conditional: 0, unknown unconditional: 4182] , Statistics on independence cache: Total cache size (in pairs): 4182, Positive cache size: 4182, Positive conditional cache size: 0, Positive unconditional cache size: 4182, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.8ms, 169 PlacesBefore, 169 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 3362 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4182, Positive cache size: 4182, Positive conditional cache size: 0, Positive unconditional cache size: 4182, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2534.0ms, 214 PlacesBefore, 172 PlacesAfterwards, 129 TransitionsBefore, 87 TransitionsAfterwards, 10668 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 42 TotalNumberOfCompositions, 4389 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4389, positive: 4389, positive conditional: 4389, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4389, positive: 4389, positive conditional: 0, positive unconditional: 4389, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4389, positive: 4389, positive conditional: 0, positive unconditional: 4389, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4389, positive: 4389, positive conditional: 0, positive unconditional: 4389, 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: 4389, positive: 2667, positive conditional: 0, positive unconditional: 2667, negative: 1722, negative conditional: 0, negative unconditional: 1722, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1722, positive: 1722, positive conditional: 0, positive unconditional: 1722, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2282, positive: 2282, positive conditional: 0, positive unconditional: 2282, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4389, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4389, unknown conditional: 0, unknown unconditional: 4389] , Statistics on independence cache: Total cache size (in pairs): 4389, Positive cache size: 4389, Positive conditional cache size: 0, Positive unconditional cache size: 4389, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.6ms, 173 PlacesBefore, 173 PlacesAfterwards, 86 TransitionsBefore, 86 TransitionsAfterwards, 3528 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4389, Positive cache size: 4389, Positive conditional cache size: 0, Positive unconditional cache size: 4389, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2653.5ms, 219 PlacesBefore, 176 PlacesAfterwards, 132 TransitionsBefore, 89 TransitionsAfterwards, 11180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 4601 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4601, positive: 4601, positive conditional: 4601, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4601, positive: 4601, positive conditional: 0, positive unconditional: 4601, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4601, positive: 4601, positive conditional: 0, positive unconditional: 4601, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4601, positive: 4601, positive conditional: 0, positive unconditional: 4601, 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: 4601, positive: 2795, positive conditional: 0, positive unconditional: 2795, negative: 1806, negative conditional: 0, negative unconditional: 1806, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1806, positive: 1806, positive conditional: 0, positive unconditional: 1806, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2381, positive: 2381, positive conditional: 0, positive unconditional: 2381, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4601, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4601, unknown conditional: 0, unknown unconditional: 4601] , Statistics on independence cache: Total cache size (in pairs): 4601, Positive cache size: 4601, Positive conditional cache size: 0, Positive unconditional cache size: 4601, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0ms, 177 PlacesBefore, 177 PlacesAfterwards, 88 TransitionsBefore, 88 TransitionsAfterwards, 3698 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4601, Positive cache size: 4601, Positive conditional cache size: 0, Positive unconditional cache size: 4601, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2778.0ms, 224 PlacesBefore, 180 PlacesAfterwards, 135 TransitionsBefore, 91 TransitionsAfterwards, 11704 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 4818 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4818, positive: 4818, positive conditional: 4818, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4818, positive: 4818, positive conditional: 0, positive unconditional: 4818, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4818, positive: 4818, positive conditional: 0, positive unconditional: 4818, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4818, positive: 4818, positive conditional: 0, positive unconditional: 4818, 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: 4818, positive: 2926, positive conditional: 0, positive unconditional: 2926, negative: 1892, negative conditional: 0, negative unconditional: 1892, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1892, positive: 1892, positive conditional: 0, positive unconditional: 1892, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2496, positive: 2496, positive conditional: 0, positive unconditional: 2496, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4818, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4818, unknown conditional: 0, unknown unconditional: 4818] , Statistics on independence cache: Total cache size (in pairs): 4818, Positive cache size: 4818, Positive conditional cache size: 0, Positive unconditional cache size: 4818, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0ms, 181 PlacesBefore, 181 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 3872 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4818, Positive cache size: 4818, Positive conditional cache size: 0, Positive unconditional cache size: 4818, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2972.6ms, 229 PlacesBefore, 184 PlacesAfterwards, 138 TransitionsBefore, 93 TransitionsAfterwards, 12240 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, 5040 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5040, positive: 5040, positive conditional: 5040, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5040, positive: 5040, positive conditional: 0, positive unconditional: 5040, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5040, positive: 5040, positive conditional: 0, positive unconditional: 5040, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5040, positive: 5040, positive conditional: 0, positive unconditional: 5040, 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: 5040, positive: 3060, positive conditional: 0, positive unconditional: 3060, negative: 1980, negative conditional: 0, negative unconditional: 1980, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1980, positive: 1980, positive conditional: 0, positive unconditional: 1980, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2681, positive: 2681, positive conditional: 0, positive unconditional: 2681, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5040, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5040, unknown conditional: 0, unknown unconditional: 5040] , Statistics on independence cache: Total cache size (in pairs): 5040, Positive cache size: 5040, Positive conditional cache size: 0, Positive unconditional cache size: 5040, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.3ms, 185 PlacesBefore, 185 PlacesAfterwards, 92 TransitionsBefore, 92 TransitionsAfterwards, 4050 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5040, Positive cache size: 5040, Positive conditional cache size: 0, Positive unconditional cache size: 5040, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3001.2ms, 234 PlacesBefore, 188 PlacesAfterwards, 141 TransitionsBefore, 95 TransitionsAfterwards, 12788 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 5267 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5267, positive: 5267, positive conditional: 5267, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5267, positive: 5267, positive conditional: 0, positive unconditional: 5267, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5267, positive: 5267, positive conditional: 0, positive unconditional: 5267, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5267, positive: 5267, positive conditional: 0, positive unconditional: 5267, 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: 5267, positive: 3197, positive conditional: 0, positive unconditional: 3197, negative: 2070, negative conditional: 0, negative unconditional: 2070, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2070, positive: 2070, positive conditional: 0, positive unconditional: 2070, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2714, positive: 2714, positive conditional: 0, positive unconditional: 2714, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5267, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5267, unknown conditional: 0, unknown unconditional: 5267] , Statistics on independence cache: Total cache size (in pairs): 5267, Positive cache size: 5267, Positive conditional cache size: 0, Positive unconditional cache size: 5267, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.1ms, 189 PlacesBefore, 189 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 4232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5267, Positive cache size: 5267, Positive conditional cache size: 0, Positive unconditional cache size: 5267, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3414.7ms, 239 PlacesBefore, 192 PlacesAfterwards, 144 TransitionsBefore, 97 TransitionsAfterwards, 13348 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 47 TotalNumberOfCompositions, 5499 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5499, positive: 5499, positive conditional: 5499, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5499, positive: 5499, positive conditional: 0, positive unconditional: 5499, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5499, positive: 5499, positive conditional: 0, positive unconditional: 5499, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5499, positive: 5499, positive conditional: 0, positive unconditional: 5499, 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: 5499, positive: 3337, positive conditional: 0, positive unconditional: 3337, negative: 2162, negative conditional: 0, negative unconditional: 2162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2162, positive: 2162, positive conditional: 0, positive unconditional: 2162, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3096, positive: 3096, positive conditional: 0, positive unconditional: 3096, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5499, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5499, unknown conditional: 0, unknown unconditional: 5499] , Statistics on independence cache: Total cache size (in pairs): 5499, Positive cache size: 5499, Positive conditional cache size: 0, Positive unconditional cache size: 5499, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.5ms, 193 PlacesBefore, 193 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 4418 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5499, Positive cache size: 5499, Positive conditional cache size: 0, Positive unconditional cache size: 5499, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3784.4ms, 244 PlacesBefore, 196 PlacesAfterwards, 147 TransitionsBefore, 99 TransitionsAfterwards, 13920 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, 5736 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5736, positive: 5736, positive conditional: 5736, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5736, positive: 5736, positive conditional: 0, positive unconditional: 5736, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5736, positive: 5736, positive conditional: 0, positive unconditional: 5736, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5736, positive: 5736, positive conditional: 0, positive unconditional: 5736, 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: 5736, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2256, negative conditional: 0, negative unconditional: 2256, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2256, positive: 2256, positive conditional: 0, positive unconditional: 2256, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3409, positive: 3409, positive conditional: 0, positive unconditional: 3409, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5736, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5736, unknown conditional: 0, unknown unconditional: 5736] , Statistics on independence cache: Total cache size (in pairs): 5736, Positive cache size: 5736, Positive conditional cache size: 0, Positive unconditional cache size: 5736, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.7ms, 197 PlacesBefore, 197 PlacesAfterwards, 98 TransitionsBefore, 98 TransitionsAfterwards, 4608 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5736, Positive cache size: 5736, Positive conditional cache size: 0, Positive unconditional cache size: 5736, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4259.6ms, 249 PlacesBefore, 200 PlacesAfterwards, 150 TransitionsBefore, 101 TransitionsAfterwards, 14504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 49 TotalNumberOfCompositions, 5978 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5978, positive: 5978, positive conditional: 5978, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5978, positive: 5978, positive conditional: 0, positive unconditional: 5978, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5978, positive: 5978, positive conditional: 0, positive unconditional: 5978, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5978, positive: 5978, positive conditional: 0, positive unconditional: 5978, 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: 5978, positive: 3626, positive conditional: 0, positive unconditional: 3626, negative: 2352, negative conditional: 0, negative unconditional: 2352, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2352, positive: 2352, positive conditional: 0, positive unconditional: 2352, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3875, positive: 3875, positive conditional: 0, positive unconditional: 3875, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5978, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5978, unknown conditional: 0, unknown unconditional: 5978] , Statistics on independence cache: Total cache size (in pairs): 5978, Positive cache size: 5978, Positive conditional cache size: 0, Positive unconditional cache size: 5978, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.3ms, 201 PlacesBefore, 201 PlacesAfterwards, 100 TransitionsBefore, 100 TransitionsAfterwards, 4802 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5978, Positive cache size: 5978, Positive conditional cache size: 0, Positive unconditional cache size: 5978, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4329.0ms, 254 PlacesBefore, 204 PlacesAfterwards, 153 TransitionsBefore, 103 TransitionsAfterwards, 15100 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 6225 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6225, positive: 6225, positive conditional: 6225, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6225, positive: 6225, positive conditional: 0, positive unconditional: 6225, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6225, positive: 6225, positive conditional: 0, positive unconditional: 6225, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6225, positive: 6225, positive conditional: 0, positive unconditional: 6225, 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: 6225, positive: 3775, positive conditional: 0, positive unconditional: 3775, negative: 2450, negative conditional: 0, negative unconditional: 2450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2450, positive: 2450, positive conditional: 0, positive unconditional: 2450, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3931, positive: 3931, positive conditional: 0, positive unconditional: 3931, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6225, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6225, unknown conditional: 0, unknown unconditional: 6225] , Statistics on independence cache: Total cache size (in pairs): 6225, Positive cache size: 6225, Positive conditional cache size: 0, Positive unconditional cache size: 6225, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.7ms, 205 PlacesBefore, 205 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 5000 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6225, Positive cache size: 6225, Positive conditional cache size: 0, Positive unconditional cache size: 6225, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4068.8ms, 259 PlacesBefore, 208 PlacesAfterwards, 156 TransitionsBefore, 105 TransitionsAfterwards, 15708 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 51 TotalNumberOfCompositions, 6477 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6477, positive: 6477, positive conditional: 6477, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6477, positive: 6477, positive conditional: 0, positive unconditional: 6477, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6477, positive: 6477, positive conditional: 0, positive unconditional: 6477, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6477, positive: 6477, positive conditional: 0, positive unconditional: 6477, 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: 6477, positive: 3927, positive conditional: 0, positive unconditional: 3927, negative: 2550, negative conditional: 0, negative unconditional: 2550, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2550, positive: 2550, positive conditional: 0, positive unconditional: 2550, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3677, positive: 3677, positive conditional: 0, positive unconditional: 3677, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6477, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6477, unknown conditional: 0, unknown unconditional: 6477] , Statistics on independence cache: Total cache size (in pairs): 6477, Positive cache size: 6477, Positive conditional cache size: 0, Positive unconditional cache size: 6477, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.4ms, 209 PlacesBefore, 209 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 5202 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6477, Positive cache size: 6477, Positive conditional cache size: 0, Positive unconditional cache size: 6477, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4173.3ms, 264 PlacesBefore, 212 PlacesAfterwards, 159 TransitionsBefore, 107 TransitionsAfterwards, 16328 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 6734 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6734, positive: 6734, positive conditional: 6734, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6734, positive: 6734, positive conditional: 0, positive unconditional: 6734, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6734, positive: 6734, positive conditional: 0, positive unconditional: 6734, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6734, positive: 6734, positive conditional: 0, positive unconditional: 6734, 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: 6734, positive: 4082, positive conditional: 0, positive unconditional: 4082, negative: 2652, negative conditional: 0, negative unconditional: 2652, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2652, positive: 2652, positive conditional: 0, positive unconditional: 2652, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3789, positive: 3789, positive conditional: 0, positive unconditional: 3789, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6734, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6734, unknown conditional: 0, unknown unconditional: 6734] , Statistics on independence cache: Total cache size (in pairs): 6734, Positive cache size: 6734, Positive conditional cache size: 0, Positive unconditional cache size: 6734, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.5ms, 213 PlacesBefore, 213 PlacesAfterwards, 106 TransitionsBefore, 106 TransitionsAfterwards, 5408 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6734, Positive cache size: 6734, Positive conditional cache size: 0, Positive unconditional cache size: 6734, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4272.9ms, 269 PlacesBefore, 216 PlacesAfterwards, 162 TransitionsBefore, 109 TransitionsAfterwards, 16960 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, 6996 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6996, positive: 6996, positive conditional: 6996, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6996, positive: 6996, positive conditional: 0, positive unconditional: 6996, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6996, positive: 6996, positive conditional: 0, positive unconditional: 6996, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6996, positive: 6996, positive conditional: 0, positive unconditional: 6996, 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: 6996, positive: 4240, positive conditional: 0, positive unconditional: 4240, negative: 2756, negative conditional: 0, negative unconditional: 2756, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2756, positive: 2756, positive conditional: 0, positive unconditional: 2756, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3903, positive: 3903, positive conditional: 0, positive unconditional: 3903, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6996, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6996, unknown conditional: 0, unknown unconditional: 6996] , Statistics on independence cache: Total cache size (in pairs): 6996, Positive cache size: 6996, Positive conditional cache size: 0, Positive unconditional cache size: 6996, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4ms, 217 PlacesBefore, 217 PlacesAfterwards, 108 TransitionsBefore, 108 TransitionsAfterwards, 5618 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6996, Positive cache size: 6996, Positive conditional cache size: 0, Positive unconditional cache size: 6996, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4287.9ms, 274 PlacesBefore, 220 PlacesAfterwards, 165 TransitionsBefore, 111 TransitionsAfterwards, 17604 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 7263 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7263, positive: 7263, positive conditional: 7263, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7263, positive: 7263, positive conditional: 0, positive unconditional: 7263, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7263, positive: 7263, positive conditional: 0, positive unconditional: 7263, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7263, positive: 7263, positive conditional: 0, positive unconditional: 7263, 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: 7263, positive: 4401, positive conditional: 0, positive unconditional: 4401, negative: 2862, negative conditional: 0, negative unconditional: 2862, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2862, positive: 2862, positive conditional: 0, positive unconditional: 2862, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3910, positive: 3910, positive conditional: 0, positive unconditional: 3910, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7263, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7263, unknown conditional: 0, unknown unconditional: 7263] , Statistics on independence cache: Total cache size (in pairs): 7263, Positive cache size: 7263, Positive conditional cache size: 0, Positive unconditional cache size: 7263, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.7ms, 221 PlacesBefore, 221 PlacesAfterwards, 110 TransitionsBefore, 110 TransitionsAfterwards, 5832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7263, Positive cache size: 7263, Positive conditional cache size: 0, Positive unconditional cache size: 7263, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4879.0ms, 279 PlacesBefore, 224 PlacesAfterwards, 168 TransitionsBefore, 113 TransitionsAfterwards, 18260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 55 TotalNumberOfCompositions, 7535 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7535, positive: 7535, positive conditional: 7535, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7535, positive: 7535, positive conditional: 0, positive unconditional: 7535, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7535, positive: 7535, positive conditional: 0, positive unconditional: 7535, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7535, positive: 7535, positive conditional: 0, positive unconditional: 7535, 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: 7535, positive: 4565, positive conditional: 0, positive unconditional: 4565, negative: 2970, negative conditional: 0, negative unconditional: 2970, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2970, positive: 2970, positive conditional: 0, positive unconditional: 2970, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4452, positive: 4452, positive conditional: 0, positive unconditional: 4452, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7535, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7535, unknown conditional: 0, unknown unconditional: 7535] , Statistics on independence cache: Total cache size (in pairs): 7535, Positive cache size: 7535, Positive conditional cache size: 0, Positive unconditional cache size: 7535, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.3ms, 225 PlacesBefore, 225 PlacesAfterwards, 112 TransitionsBefore, 112 TransitionsAfterwards, 6050 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7535, Positive cache size: 7535, Positive conditional cache size: 0, Positive unconditional cache size: 7535, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4714.2ms, 284 PlacesBefore, 228 PlacesAfterwards, 171 TransitionsBefore, 115 TransitionsAfterwards, 18928 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 56 TotalNumberOfCompositions, 7812 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7812, positive: 7812, positive conditional: 7812, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7812, positive: 7812, positive conditional: 0, positive unconditional: 7812, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7812, positive: 7812, positive conditional: 0, positive unconditional: 7812, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7812, positive: 7812, positive conditional: 0, positive unconditional: 7812, 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: 7812, positive: 4732, positive conditional: 0, positive unconditional: 4732, negative: 3080, negative conditional: 0, negative unconditional: 3080, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3080, positive: 3080, positive conditional: 0, positive unconditional: 3080, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4280, positive: 4280, positive conditional: 0, positive unconditional: 4280, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7812, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7812, unknown conditional: 0, unknown unconditional: 7812] , Statistics on independence cache: Total cache size (in pairs): 7812, Positive cache size: 7812, Positive conditional cache size: 0, Positive unconditional cache size: 7812, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.2ms, 229 PlacesBefore, 229 PlacesAfterwards, 114 TransitionsBefore, 114 TransitionsAfterwards, 6272 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7812, Positive cache size: 7812, Positive conditional cache size: 0, Positive unconditional cache size: 7812, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4771.1ms, 289 PlacesBefore, 232 PlacesAfterwards, 174 TransitionsBefore, 117 TransitionsAfterwards, 19608 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 57 TotalNumberOfCompositions, 8094 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8094, positive: 8094, positive conditional: 8094, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8094, positive: 8094, positive conditional: 0, positive unconditional: 8094, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8094, positive: 8094, positive conditional: 0, positive unconditional: 8094, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8094, positive: 8094, positive conditional: 0, positive unconditional: 8094, 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: 8094, positive: 4902, positive conditional: 0, positive unconditional: 4902, negative: 3192, negative conditional: 0, negative unconditional: 3192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3192, positive: 3192, positive conditional: 0, positive unconditional: 3192, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4341, positive: 4341, positive conditional: 0, positive unconditional: 4341, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8094, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8094, unknown conditional: 0, unknown unconditional: 8094] , Statistics on independence cache: Total cache size (in pairs): 8094, Positive cache size: 8094, Positive conditional cache size: 0, Positive unconditional cache size: 8094, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.3ms, 233 PlacesBefore, 233 PlacesAfterwards, 116 TransitionsBefore, 116 TransitionsAfterwards, 6498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8094, Positive cache size: 8094, Positive conditional cache size: 0, Positive unconditional cache size: 8094, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5746.9ms, 294 PlacesBefore, 236 PlacesAfterwards, 177 TransitionsBefore, 119 TransitionsAfterwards, 20300 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 8381 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8381, positive: 8381, positive conditional: 8381, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8381, positive: 8381, positive conditional: 0, positive unconditional: 8381, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8381, positive: 8381, positive conditional: 0, positive unconditional: 8381, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8381, positive: 8381, positive conditional: 0, positive unconditional: 8381, 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: 8381, positive: 5075, positive conditional: 0, positive unconditional: 5075, negative: 3306, negative conditional: 0, negative unconditional: 3306, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3306, positive: 3306, positive conditional: 0, positive unconditional: 3306, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5262, positive: 5262, positive conditional: 0, positive unconditional: 5262, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8381, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8381, unknown conditional: 0, unknown unconditional: 8381] , Statistics on independence cache: Total cache size (in pairs): 8381, Positive cache size: 8381, Positive conditional cache size: 0, Positive unconditional cache size: 8381, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0ms, 237 PlacesBefore, 237 PlacesAfterwards, 118 TransitionsBefore, 118 TransitionsAfterwards, 6728 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8381, Positive cache size: 8381, Positive conditional cache size: 0, Positive unconditional cache size: 8381, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5950.2ms, 299 PlacesBefore, 240 PlacesAfterwards, 180 TransitionsBefore, 121 TransitionsAfterwards, 21004 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 8673 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8673, positive: 8673, positive conditional: 8673, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8673, positive: 8673, positive conditional: 0, positive unconditional: 8673, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8673, positive: 8673, positive conditional: 0, positive unconditional: 8673, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8673, positive: 8673, positive conditional: 0, positive unconditional: 8673, 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: 8673, positive: 5251, positive conditional: 0, positive unconditional: 5251, negative: 3422, negative conditional: 0, negative unconditional: 3422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3422, positive: 3422, positive conditional: 0, positive unconditional: 3422, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5460, positive: 5460, positive conditional: 0, positive unconditional: 5460, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8673, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8673, unknown conditional: 0, unknown unconditional: 8673] , Statistics on independence cache: Total cache size (in pairs): 8673, Positive cache size: 8673, Positive conditional cache size: 0, Positive unconditional cache size: 8673, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.7ms, 241 PlacesBefore, 241 PlacesAfterwards, 120 TransitionsBefore, 120 TransitionsAfterwards, 6962 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8673, Positive cache size: 8673, Positive conditional cache size: 0, Positive unconditional cache size: 8673, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5719.6ms, 304 PlacesBefore, 244 PlacesAfterwards, 183 TransitionsBefore, 123 TransitionsAfterwards, 21720 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 60 TotalNumberOfCompositions, 8970 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8970, positive: 8970, positive conditional: 8970, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8970, positive: 8970, positive conditional: 0, positive unconditional: 8970, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8970, positive: 8970, positive conditional: 0, positive unconditional: 8970, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8970, positive: 8970, positive conditional: 0, positive unconditional: 8970, 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: 8970, positive: 5430, positive conditional: 0, positive unconditional: 5430, negative: 3540, negative conditional: 0, negative unconditional: 3540, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3540, positive: 3540, positive conditional: 0, positive unconditional: 3540, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5257, positive: 5257, positive conditional: 0, positive unconditional: 5257, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8970, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8970, unknown conditional: 0, unknown unconditional: 8970] , Statistics on independence cache: Total cache size (in pairs): 8970, Positive cache size: 8970, Positive conditional cache size: 0, Positive unconditional cache size: 8970, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.8ms, 245 PlacesBefore, 245 PlacesAfterwards, 122 TransitionsBefore, 122 TransitionsAfterwards, 7200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8970, Positive cache size: 8970, Positive conditional cache size: 0, Positive unconditional cache size: 8970, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6543.9ms, 309 PlacesBefore, 248 PlacesAfterwards, 186 TransitionsBefore, 125 TransitionsAfterwards, 22448 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 61 TotalNumberOfCompositions, 9272 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9272, positive: 9272, positive conditional: 9272, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9272, positive: 9272, positive conditional: 0, positive unconditional: 9272, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9272, positive: 9272, positive conditional: 0, positive unconditional: 9272, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9272, positive: 9272, positive conditional: 0, positive unconditional: 9272, 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: 9272, positive: 5612, positive conditional: 0, positive unconditional: 5612, negative: 3660, negative conditional: 0, negative unconditional: 3660, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3660, positive: 3660, positive conditional: 0, positive unconditional: 3660, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5839, positive: 5839, positive conditional: 0, positive unconditional: 5839, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9272, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 9272, unknown conditional: 0, unknown unconditional: 9272] , Statistics on independence cache: Total cache size (in pairs): 9272, Positive cache size: 9272, Positive conditional cache size: 0, Positive unconditional cache size: 9272, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.0ms, 249 PlacesBefore, 249 PlacesAfterwards, 124 TransitionsBefore, 124 TransitionsAfterwards, 7442 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9272, Positive cache size: 9272, Positive conditional cache size: 0, Positive unconditional cache size: 9272, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6572.6ms, 314 PlacesBefore, 252 PlacesAfterwards, 189 TransitionsBefore, 127 TransitionsAfterwards, 23188 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 62 TotalNumberOfCompositions, 9579 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9579, positive: 9579, positive conditional: 9579, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9579, positive: 9579, positive conditional: 0, positive unconditional: 9579, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9579, positive: 9579, positive conditional: 0, positive unconditional: 9579, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9579, positive: 9579, positive conditional: 0, positive unconditional: 9579, 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: 9579, positive: 5797, positive conditional: 0, positive unconditional: 5797, negative: 3782, negative conditional: 0, negative unconditional: 3782, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3782, positive: 3782, positive conditional: 0, positive unconditional: 3782, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6029, positive: 6029, positive conditional: 0, positive unconditional: 6029, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9579, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 9579, unknown conditional: 0, unknown unconditional: 9579] , Statistics on independence cache: Total cache size (in pairs): 9579, Positive cache size: 9579, Positive conditional cache size: 0, Positive unconditional cache size: 9579, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.3ms, 253 PlacesBefore, 253 PlacesAfterwards, 126 TransitionsBefore, 126 TransitionsAfterwards, 7688 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9579, Positive cache size: 9579, Positive conditional cache size: 0, Positive unconditional cache size: 9579, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7612.5ms, 319 PlacesBefore, 256 PlacesAfterwards, 192 TransitionsBefore, 129 TransitionsAfterwards, 23940 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 63 TotalNumberOfCompositions, 9891 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9891, positive: 9891, positive conditional: 9891, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9891, positive: 9891, positive conditional: 0, positive unconditional: 9891, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9891, positive: 9891, positive conditional: 0, positive unconditional: 9891, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9891, positive: 9891, positive conditional: 0, positive unconditional: 9891, 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: 9891, positive: 5985, positive conditional: 0, positive unconditional: 5985, negative: 3906, negative conditional: 0, negative unconditional: 3906, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3906, positive: 3906, positive conditional: 0, positive unconditional: 3906, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7027, positive: 7027, positive conditional: 0, positive unconditional: 7027, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9891, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 9891, unknown conditional: 0, unknown unconditional: 9891] , Statistics on independence cache: Total cache size (in pairs): 9891, Positive cache size: 9891, Positive conditional cache size: 0, Positive unconditional cache size: 9891, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.2ms, 257 PlacesBefore, 257 PlacesAfterwards, 128 TransitionsBefore, 128 TransitionsAfterwards, 7938 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9891, Positive cache size: 9891, Positive conditional cache size: 0, Positive unconditional cache size: 9891, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7484.4ms, 324 PlacesBefore, 260 PlacesAfterwards, 195 TransitionsBefore, 131 TransitionsAfterwards, 24704 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 64 TotalNumberOfCompositions, 10208 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10208, positive: 10208, positive conditional: 10208, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10208, positive: 10208, positive conditional: 0, positive unconditional: 10208, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10208, positive: 10208, positive conditional: 0, positive unconditional: 10208, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10208, positive: 10208, positive conditional: 0, positive unconditional: 10208, 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: 10208, positive: 6176, positive conditional: 0, positive unconditional: 6176, negative: 4032, negative conditional: 0, negative unconditional: 4032, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4032, positive: 4032, positive conditional: 0, positive unconditional: 4032, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6884, positive: 6884, positive conditional: 0, positive unconditional: 6884, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10208, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10208, unknown conditional: 0, unknown unconditional: 10208] , Statistics on independence cache: Total cache size (in pairs): 10208, Positive cache size: 10208, Positive conditional cache size: 0, Positive unconditional cache size: 10208, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.5ms, 261 PlacesBefore, 261 PlacesAfterwards, 130 TransitionsBefore, 130 TransitionsAfterwards, 8192 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10208, Positive cache size: 10208, Positive conditional cache size: 0, Positive unconditional cache size: 10208, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7398.9ms, 329 PlacesBefore, 264 PlacesAfterwards, 198 TransitionsBefore, 133 TransitionsAfterwards, 25480 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 65 TotalNumberOfCompositions, 10530 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10530, positive: 10530, positive conditional: 10530, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10530, positive: 10530, positive conditional: 0, positive unconditional: 10530, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10530, positive: 10530, positive conditional: 0, positive unconditional: 10530, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10530, positive: 10530, positive conditional: 0, positive unconditional: 10530, 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: 10530, positive: 6370, positive conditional: 0, positive unconditional: 6370, negative: 4160, negative conditional: 0, negative unconditional: 4160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4160, positive: 4160, positive conditional: 0, positive unconditional: 4160, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6797, positive: 6797, positive conditional: 0, positive unconditional: 6797, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10530, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10530, unknown conditional: 0, unknown unconditional: 10530] , Statistics on independence cache: Total cache size (in pairs): 10530, Positive cache size: 10530, Positive conditional cache size: 0, Positive unconditional cache size: 10530, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.7ms, 265 PlacesBefore, 265 PlacesAfterwards, 132 TransitionsBefore, 132 TransitionsAfterwards, 8450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10530, Positive cache size: 10530, Positive conditional cache size: 0, Positive unconditional cache size: 10530, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9063.7ms, 334 PlacesBefore, 268 PlacesAfterwards, 201 TransitionsBefore, 135 TransitionsAfterwards, 26268 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 66 TotalNumberOfCompositions, 10857 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10857, positive: 10857, positive conditional: 10857, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10857, positive: 10857, positive conditional: 0, positive unconditional: 10857, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10857, positive: 10857, positive conditional: 0, positive unconditional: 10857, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10857, positive: 10857, positive conditional: 0, positive unconditional: 10857, 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: 10857, positive: 6567, positive conditional: 0, positive unconditional: 6567, negative: 4290, negative conditional: 0, negative unconditional: 4290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4290, positive: 4290, positive conditional: 0, positive unconditional: 4290, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8208, positive: 8208, positive conditional: 0, positive unconditional: 8208, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10857, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10857, unknown conditional: 0, unknown unconditional: 10857] , Statistics on independence cache: Total cache size (in pairs): 10857, Positive cache size: 10857, Positive conditional cache size: 0, Positive unconditional cache size: 10857, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.1ms, 269 PlacesBefore, 269 PlacesAfterwards, 134 TransitionsBefore, 134 TransitionsAfterwards, 8712 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10857, Positive cache size: 10857, Positive conditional cache size: 0, Positive unconditional cache size: 10857, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8414.3ms, 339 PlacesBefore, 272 PlacesAfterwards, 204 TransitionsBefore, 137 TransitionsAfterwards, 27068 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 67 TotalNumberOfCompositions, 11189 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11189, positive: 11189, positive conditional: 11189, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11189, positive: 11189, positive conditional: 0, positive unconditional: 11189, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11189, positive: 11189, positive conditional: 0, positive unconditional: 11189, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11189, positive: 11189, positive conditional: 0, positive unconditional: 11189, 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: 11189, positive: 6767, positive conditional: 0, positive unconditional: 6767, negative: 4422, negative conditional: 0, negative unconditional: 4422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4422, positive: 4422, positive conditional: 0, positive unconditional: 4422, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7746, positive: 7746, positive conditional: 0, positive unconditional: 7746, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11189, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 11189, unknown conditional: 0, unknown unconditional: 11189] , Statistics on independence cache: Total cache size (in pairs): 11189, Positive cache size: 11189, Positive conditional cache size: 0, Positive unconditional cache size: 11189, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.9ms, 273 PlacesBefore, 273 PlacesAfterwards, 136 TransitionsBefore, 136 TransitionsAfterwards, 8978 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11189, Positive cache size: 11189, Positive conditional cache size: 0, Positive unconditional cache size: 11189, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9372.4ms, 344 PlacesBefore, 276 PlacesAfterwards, 207 TransitionsBefore, 139 TransitionsAfterwards, 27880 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 68 TotalNumberOfCompositions, 11526 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11526, positive: 11526, positive conditional: 11526, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11526, positive: 11526, positive conditional: 0, positive unconditional: 11526, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11526, positive: 11526, positive conditional: 0, positive unconditional: 11526, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11526, positive: 11526, positive conditional: 0, positive unconditional: 11526, 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: 11526, positive: 6970, positive conditional: 0, positive unconditional: 6970, negative: 4556, negative conditional: 0, negative unconditional: 4556, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4556, positive: 4556, positive conditional: 0, positive unconditional: 4556, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8573, positive: 8573, positive conditional: 0, positive unconditional: 8573, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11526, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 11526, unknown conditional: 0, unknown unconditional: 11526] , Statistics on independence cache: Total cache size (in pairs): 11526, Positive cache size: 11526, Positive conditional cache size: 0, Positive unconditional cache size: 11526, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.4ms, 277 PlacesBefore, 277 PlacesAfterwards, 138 TransitionsBefore, 138 TransitionsAfterwards, 9248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11526, Positive cache size: 11526, Positive conditional cache size: 0, Positive unconditional cache size: 11526, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9509.0ms, 349 PlacesBefore, 280 PlacesAfterwards, 210 TransitionsBefore, 141 TransitionsAfterwards, 28704 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 69 TotalNumberOfCompositions, 11868 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11868, positive: 11868, positive conditional: 11868, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11868, positive: 11868, positive conditional: 0, positive unconditional: 11868, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11868, positive: 11868, positive conditional: 0, positive unconditional: 11868, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11868, positive: 11868, positive conditional: 0, positive unconditional: 11868, 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: 11868, positive: 7176, positive conditional: 0, positive unconditional: 7176, negative: 4692, negative conditional: 0, negative unconditional: 4692, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4692, positive: 4692, positive conditional: 0, positive unconditional: 4692, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8789, positive: 8789, positive conditional: 0, positive unconditional: 8789, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11868, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 11868, unknown conditional: 0, unknown unconditional: 11868] , Statistics on independence cache: Total cache size (in pairs): 11868, Positive cache size: 11868, Positive conditional cache size: 0, Positive unconditional cache size: 11868, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.5ms, 281 PlacesBefore, 281 PlacesAfterwards, 140 TransitionsBefore, 140 TransitionsAfterwards, 9522 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11868, Positive cache size: 11868, Positive conditional cache size: 0, Positive unconditional cache size: 11868, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9320.7ms, 354 PlacesBefore, 284 PlacesAfterwards, 213 TransitionsBefore, 143 TransitionsAfterwards, 29540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 70 TotalNumberOfCompositions, 12215 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12215, positive: 12215, positive conditional: 12215, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12215, positive: 12215, positive conditional: 0, positive unconditional: 12215, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12215, positive: 12215, positive conditional: 0, positive unconditional: 12215, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12215, positive: 12215, positive conditional: 0, positive unconditional: 12215, 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: 12215, positive: 7385, positive conditional: 0, positive unconditional: 7385, negative: 4830, negative conditional: 0, negative unconditional: 4830, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4830, positive: 4830, positive conditional: 0, positive unconditional: 4830, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8625, positive: 8625, positive conditional: 0, positive unconditional: 8625, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12215, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12215, unknown conditional: 0, unknown unconditional: 12215] , Statistics on independence cache: Total cache size (in pairs): 12215, Positive cache size: 12215, Positive conditional cache size: 0, Positive unconditional cache size: 12215, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.2ms, 285 PlacesBefore, 285 PlacesAfterwards, 142 TransitionsBefore, 142 TransitionsAfterwards, 9800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12215, Positive cache size: 12215, Positive conditional cache size: 0, Positive unconditional cache size: 12215, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10122.2ms, 359 PlacesBefore, 288 PlacesAfterwards, 216 TransitionsBefore, 145 TransitionsAfterwards, 30388 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 71 TotalNumberOfCompositions, 12567 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12567, positive: 12567, positive conditional: 12567, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12567, positive: 12567, positive conditional: 0, positive unconditional: 12567, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12567, positive: 12567, positive conditional: 0, positive unconditional: 12567, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12567, positive: 12567, positive conditional: 0, positive unconditional: 12567, 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: 12567, positive: 7597, positive conditional: 0, positive unconditional: 7597, negative: 4970, negative conditional: 0, negative unconditional: 4970, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4970, positive: 4970, positive conditional: 0, positive unconditional: 4970, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9391, positive: 9391, positive conditional: 0, positive unconditional: 9391, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12567, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12567, unknown conditional: 0, unknown unconditional: 12567] , Statistics on independence cache: Total cache size (in pairs): 12567, Positive cache size: 12567, Positive conditional cache size: 0, Positive unconditional cache size: 12567, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.6ms, 289 PlacesBefore, 289 PlacesAfterwards, 144 TransitionsBefore, 144 TransitionsAfterwards, 10082 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12567, Positive cache size: 12567, Positive conditional cache size: 0, Positive unconditional cache size: 12567, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10497.5ms, 364 PlacesBefore, 292 PlacesAfterwards, 219 TransitionsBefore, 147 TransitionsAfterwards, 31248 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 72 TotalNumberOfCompositions, 12924 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12924, positive: 12924, positive conditional: 12924, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12924, positive: 12924, positive conditional: 0, positive unconditional: 12924, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12924, positive: 12924, positive conditional: 0, positive unconditional: 12924, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12924, positive: 12924, positive conditional: 0, positive unconditional: 12924, 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: 12924, positive: 7812, positive conditional: 0, positive unconditional: 7812, negative: 5112, negative conditional: 0, negative unconditional: 5112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5112, positive: 5112, positive conditional: 0, positive unconditional: 5112, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9710, positive: 9710, positive conditional: 0, positive unconditional: 9710, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12924, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12924, unknown conditional: 0, unknown unconditional: 12924] , Statistics on independence cache: Total cache size (in pairs): 12924, Positive cache size: 12924, Positive conditional cache size: 0, Positive unconditional cache size: 12924, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.8ms, 293 PlacesBefore, 293 PlacesAfterwards, 146 TransitionsBefore, 146 TransitionsAfterwards, 10368 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12924, Positive cache size: 12924, Positive conditional cache size: 0, Positive unconditional cache size: 12924, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10863.3ms, 369 PlacesBefore, 296 PlacesAfterwards, 222 TransitionsBefore, 149 TransitionsAfterwards, 32120 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 73 TotalNumberOfCompositions, 13286 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13286, positive: 13286, positive conditional: 13286, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13286, positive: 13286, positive conditional: 0, positive unconditional: 13286, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13286, positive: 13286, positive conditional: 0, positive unconditional: 13286, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13286, positive: 13286, positive conditional: 0, positive unconditional: 13286, 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: 13286, positive: 8030, positive conditional: 0, positive unconditional: 8030, negative: 5256, negative conditional: 0, negative unconditional: 5256, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5256, positive: 5256, positive conditional: 0, positive unconditional: 5256, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9934, positive: 9934, positive conditional: 0, positive unconditional: 9934, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13286, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 13286, unknown conditional: 0, unknown unconditional: 13286] , Statistics on independence cache: Total cache size (in pairs): 13286, Positive cache size: 13286, Positive conditional cache size: 0, Positive unconditional cache size: 13286, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.4ms, 297 PlacesBefore, 297 PlacesAfterwards, 148 TransitionsBefore, 148 TransitionsAfterwards, 10658 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13286, Positive cache size: 13286, Positive conditional cache size: 0, Positive unconditional cache size: 13286, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11343.0ms, 374 PlacesBefore, 300 PlacesAfterwards, 225 TransitionsBefore, 151 TransitionsAfterwards, 33004 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, 13653 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13653, positive: 13653, positive conditional: 13653, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13653, positive: 13653, positive conditional: 0, positive unconditional: 13653, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13653, positive: 13653, positive conditional: 0, positive unconditional: 13653, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13653, positive: 13653, positive conditional: 0, positive unconditional: 13653, 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: 13653, positive: 8251, positive conditional: 0, positive unconditional: 8251, negative: 5402, negative conditional: 0, negative unconditional: 5402, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5402, positive: 5402, positive conditional: 0, positive unconditional: 5402, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10522, positive: 10522, positive conditional: 0, positive unconditional: 10522, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13653, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 13653, unknown conditional: 0, unknown unconditional: 13653] , Statistics on independence cache: Total cache size (in pairs): 13653, Positive cache size: 13653, Positive conditional cache size: 0, Positive unconditional cache size: 13653, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.1ms, 301 PlacesBefore, 301 PlacesAfterwards, 150 TransitionsBefore, 150 TransitionsAfterwards, 10952 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13653, Positive cache size: 13653, Positive conditional cache size: 0, Positive unconditional cache size: 13653, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12943.4ms, 379 PlacesBefore, 304 PlacesAfterwards, 228 TransitionsBefore, 153 TransitionsAfterwards, 33900 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 75 TotalNumberOfCompositions, 14025 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14025, positive: 14025, positive conditional: 14025, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14025, positive: 14025, positive conditional: 0, positive unconditional: 14025, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14025, positive: 14025, positive conditional: 0, positive unconditional: 14025, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14025, positive: 14025, positive conditional: 0, positive unconditional: 14025, 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: 14025, positive: 8475, positive conditional: 0, positive unconditional: 8475, negative: 5550, negative conditional: 0, negative unconditional: 5550, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5550, positive: 5550, positive conditional: 0, positive unconditional: 5550, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11910, positive: 11910, positive conditional: 0, positive unconditional: 11910, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14025, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 14025, unknown conditional: 0, unknown unconditional: 14025] , Statistics on independence cache: Total cache size (in pairs): 14025, Positive cache size: 14025, Positive conditional cache size: 0, Positive unconditional cache size: 14025, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.5ms, 305 PlacesBefore, 305 PlacesAfterwards, 152 TransitionsBefore, 152 TransitionsAfterwards, 11250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14025, Positive cache size: 14025, Positive conditional cache size: 0, Positive unconditional cache size: 14025, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14409.1ms, 384 PlacesBefore, 308 PlacesAfterwards, 231 TransitionsBefore, 155 TransitionsAfterwards, 34808 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 76 TotalNumberOfCompositions, 14402 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14402, positive: 14402, positive conditional: 14402, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14402, positive: 14402, positive conditional: 0, positive unconditional: 14402, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14402, positive: 14402, positive conditional: 0, positive unconditional: 14402, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14402, positive: 14402, positive conditional: 0, positive unconditional: 14402, 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: 14402, positive: 8702, positive conditional: 0, positive unconditional: 8702, negative: 5700, negative conditional: 0, negative unconditional: 5700, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5700, positive: 5700, positive conditional: 0, positive unconditional: 5700, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13328, positive: 13328, positive conditional: 0, positive unconditional: 13328, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14402, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 14402, unknown conditional: 0, unknown unconditional: 14402] , Statistics on independence cache: Total cache size (in pairs): 14402, Positive cache size: 14402, Positive conditional cache size: 0, Positive unconditional cache size: 14402, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.2ms, 309 PlacesBefore, 309 PlacesAfterwards, 154 TransitionsBefore, 154 TransitionsAfterwards, 11552 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14402, Positive cache size: 14402, Positive conditional cache size: 0, Positive unconditional cache size: 14402, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14153.4ms, 389 PlacesBefore, 312 PlacesAfterwards, 234 TransitionsBefore, 157 TransitionsAfterwards, 35728 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 14784 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14784, positive: 14784, positive conditional: 14784, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14784, positive: 14784, positive conditional: 0, positive unconditional: 14784, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14784, positive: 14784, positive conditional: 0, positive unconditional: 14784, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14784, positive: 14784, positive conditional: 0, positive unconditional: 14784, 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: 14784, positive: 8932, positive conditional: 0, positive unconditional: 8932, negative: 5852, negative conditional: 0, negative unconditional: 5852, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5852, positive: 5852, positive conditional: 0, positive unconditional: 5852, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12992, positive: 12992, positive conditional: 0, positive unconditional: 12992, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14784, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 14784, unknown conditional: 0, unknown unconditional: 14784] , Statistics on independence cache: Total cache size (in pairs): 14784, Positive cache size: 14784, Positive conditional cache size: 0, Positive unconditional cache size: 14784, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.3ms, 313 PlacesBefore, 313 PlacesAfterwards, 156 TransitionsBefore, 156 TransitionsAfterwards, 11858 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14784, Positive cache size: 14784, Positive conditional cache size: 0, Positive unconditional cache size: 14784, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15851.2ms, 394 PlacesBefore, 316 PlacesAfterwards, 237 TransitionsBefore, 159 TransitionsAfterwards, 36660 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 78 TotalNumberOfCompositions, 15171 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15171, positive: 15171, positive conditional: 15171, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 15171, positive: 15171, positive conditional: 0, positive unconditional: 15171, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15171, positive: 15171, positive conditional: 0, positive unconditional: 15171, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15171, positive: 15171, positive conditional: 0, positive unconditional: 15171, 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: 15171, positive: 9165, positive conditional: 0, positive unconditional: 9165, negative: 6006, negative conditional: 0, negative unconditional: 6006, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6006, positive: 6006, positive conditional: 0, positive unconditional: 6006, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14711, positive: 14711, positive conditional: 0, positive unconditional: 14711, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15171, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15171, unknown conditional: 0, unknown unconditional: 15171] , Statistics on independence cache: Total cache size (in pairs): 15171, Positive cache size: 15171, Positive conditional cache size: 0, Positive unconditional cache size: 15171, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.3ms, 317 PlacesBefore, 317 PlacesAfterwards, 158 TransitionsBefore, 158 TransitionsAfterwards, 12168 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15171, Positive cache size: 15171, Positive conditional cache size: 0, Positive unconditional cache size: 15171, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17420.7ms, 399 PlacesBefore, 320 PlacesAfterwards, 240 TransitionsBefore, 161 TransitionsAfterwards, 37604 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 79 TotalNumberOfCompositions, 15563 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15563, positive: 15563, positive conditional: 15563, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 15563, positive: 15563, positive conditional: 0, positive unconditional: 15563, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15563, positive: 15563, positive conditional: 0, positive unconditional: 15563, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15563, positive: 15563, positive conditional: 0, positive unconditional: 15563, 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: 15563, positive: 9401, positive conditional: 0, positive unconditional: 9401, negative: 6162, negative conditional: 0, negative unconditional: 6162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6162, positive: 6162, positive conditional: 0, positive unconditional: 6162, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16048, positive: 16048, positive conditional: 0, positive unconditional: 16048, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15563, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15563, unknown conditional: 0, unknown unconditional: 15563] , Statistics on independence cache: Total cache size (in pairs): 15563, Positive cache size: 15563, Positive conditional cache size: 0, Positive unconditional cache size: 15563, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.2ms, 321 PlacesBefore, 321 PlacesAfterwards, 160 TransitionsBefore, 160 TransitionsAfterwards, 12482 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15563, Positive cache size: 15563, Positive conditional cache size: 0, Positive unconditional cache size: 15563, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18680.9ms, 404 PlacesBefore, 324 PlacesAfterwards, 243 TransitionsBefore, 163 TransitionsAfterwards, 38560 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 80 TotalNumberOfCompositions, 15960 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15960, positive: 15960, positive conditional: 15960, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 15960, positive: 15960, positive conditional: 0, positive unconditional: 15960, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15960, positive: 15960, positive conditional: 0, positive unconditional: 15960, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15960, positive: 15960, positive conditional: 0, positive unconditional: 15960, 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: 15960, positive: 9640, positive conditional: 0, positive unconditional: 9640, negative: 6320, negative conditional: 0, negative unconditional: 6320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6320, positive: 6320, positive conditional: 0, positive unconditional: 6320, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17222, positive: 17222, positive conditional: 0, positive unconditional: 17222, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15960, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15960, unknown conditional: 0, unknown unconditional: 15960] , Statistics on independence cache: Total cache size (in pairs): 15960, Positive cache size: 15960, Positive conditional cache size: 0, Positive unconditional cache size: 15960, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.9ms, 325 PlacesBefore, 325 PlacesAfterwards, 162 TransitionsBefore, 162 TransitionsAfterwards, 12800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15960, Positive cache size: 15960, Positive conditional cache size: 0, Positive unconditional cache size: 15960, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19711.0ms, 409 PlacesBefore, 328 PlacesAfterwards, 246 TransitionsBefore, 165 TransitionsAfterwards, 39528 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 81 TotalNumberOfCompositions, 16362 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16362, positive: 16362, positive conditional: 16362, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16362, positive: 16362, positive conditional: 0, positive unconditional: 16362, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16362, positive: 16362, positive conditional: 0, positive unconditional: 16362, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16362, positive: 16362, positive conditional: 0, positive unconditional: 16362, 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: 16362, positive: 9882, positive conditional: 0, positive unconditional: 9882, negative: 6480, negative conditional: 0, negative unconditional: 6480, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6480, positive: 6480, positive conditional: 0, positive unconditional: 6480, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 18319, positive: 18319, positive conditional: 0, positive unconditional: 18319, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16362, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 16362, unknown conditional: 0, unknown unconditional: 16362] , Statistics on independence cache: Total cache size (in pairs): 16362, Positive cache size: 16362, Positive conditional cache size: 0, Positive unconditional cache size: 16362, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.7ms, 329 PlacesBefore, 329 PlacesAfterwards, 164 TransitionsBefore, 164 TransitionsAfterwards, 13122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16362, Positive cache size: 16362, Positive conditional cache size: 0, Positive unconditional cache size: 16362, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20080.5ms, 414 PlacesBefore, 332 PlacesAfterwards, 249 TransitionsBefore, 167 TransitionsAfterwards, 40508 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 82 TotalNumberOfCompositions, 16769 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16769, positive: 16769, positive conditional: 16769, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16769, positive: 16769, positive conditional: 0, positive unconditional: 16769, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16769, positive: 16769, positive conditional: 0, positive unconditional: 16769, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16769, positive: 16769, positive conditional: 0, positive unconditional: 16769, 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: 16769, positive: 10127, positive conditional: 0, positive unconditional: 10127, negative: 6642, negative conditional: 0, negative unconditional: 6642, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6642, positive: 6642, positive conditional: 0, positive unconditional: 6642, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 18688, positive: 18688, positive conditional: 0, positive unconditional: 18688, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16769, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 16769, unknown conditional: 0, unknown unconditional: 16769] , Statistics on independence cache: Total cache size (in pairs): 16769, Positive cache size: 16769, Positive conditional cache size: 0, Positive unconditional cache size: 16769, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.6ms, 333 PlacesBefore, 333 PlacesAfterwards, 166 TransitionsBefore, 166 TransitionsAfterwards, 13448 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16769, Positive cache size: 16769, Positive conditional cache size: 0, Positive unconditional cache size: 16769, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21624.0ms, 419 PlacesBefore, 336 PlacesAfterwards, 252 TransitionsBefore, 169 TransitionsAfterwards, 41500 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 83 TotalNumberOfCompositions, 17181 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17181, positive: 17181, positive conditional: 17181, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 17181, positive: 17181, positive conditional: 0, positive unconditional: 17181, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17181, positive: 17181, positive conditional: 0, positive unconditional: 17181, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17181, positive: 17181, positive conditional: 0, positive unconditional: 17181, 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: 17181, positive: 10375, positive conditional: 0, positive unconditional: 10375, negative: 6806, negative conditional: 0, negative unconditional: 6806, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6806, positive: 6806, positive conditional: 0, positive unconditional: 6806, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20149, positive: 20149, positive conditional: 0, positive unconditional: 20149, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17181, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 17181, unknown conditional: 0, unknown unconditional: 17181] , Statistics on independence cache: Total cache size (in pairs): 17181, Positive cache size: 17181, Positive conditional cache size: 0, Positive unconditional cache size: 17181, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.5ms, 337 PlacesBefore, 337 PlacesAfterwards, 168 TransitionsBefore, 168 TransitionsAfterwards, 13778 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17181, Positive cache size: 17181, Positive conditional cache size: 0, Positive unconditional cache size: 17181, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23604.4ms, 424 PlacesBefore, 340 PlacesAfterwards, 255 TransitionsBefore, 171 TransitionsAfterwards, 42504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 84 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 84 TotalNumberOfCompositions, 17598 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17598, positive: 17598, positive conditional: 17598, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 17598, positive: 17598, positive conditional: 0, positive unconditional: 17598, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17598, positive: 17598, positive conditional: 0, positive unconditional: 17598, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17598, positive: 17598, positive conditional: 0, positive unconditional: 17598, 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: 17598, positive: 10626, positive conditional: 0, positive unconditional: 10626, negative: 6972, negative conditional: 0, negative unconditional: 6972, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6972, positive: 6972, positive conditional: 0, positive unconditional: 6972, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21987, positive: 21987, positive conditional: 0, positive unconditional: 21987, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17598, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 17598, unknown conditional: 0, unknown unconditional: 17598] , Statistics on independence cache: Total cache size (in pairs): 17598, Positive cache size: 17598, Positive conditional cache size: 0, Positive unconditional cache size: 17598, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.5ms, 341 PlacesBefore, 341 PlacesAfterwards, 170 TransitionsBefore, 170 TransitionsAfterwards, 14112 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17598, Positive cache size: 17598, Positive conditional cache size: 0, Positive unconditional cache size: 17598, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24141.5ms, 429 PlacesBefore, 344 PlacesAfterwards, 258 TransitionsBefore, 173 TransitionsAfterwards, 43520 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 85 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 85 TotalNumberOfCompositions, 18020 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18020, positive: 18020, positive conditional: 18020, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18020, positive: 18020, positive conditional: 0, positive unconditional: 18020, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18020, positive: 18020, positive conditional: 0, positive unconditional: 18020, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18020, positive: 18020, positive conditional: 0, positive unconditional: 18020, 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: 18020, positive: 10880, positive conditional: 0, positive unconditional: 10880, negative: 7140, negative conditional: 0, negative unconditional: 7140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7140, positive: 7140, positive conditional: 0, positive unconditional: 7140, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22501, positive: 22501, positive conditional: 0, positive unconditional: 22501, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18020, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 18020, unknown conditional: 0, unknown unconditional: 18020] , Statistics on independence cache: Total cache size (in pairs): 18020, Positive cache size: 18020, Positive conditional cache size: 0, Positive unconditional cache size: 18020, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.5ms, 345 PlacesBefore, 345 PlacesAfterwards, 172 TransitionsBefore, 172 TransitionsAfterwards, 14450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18020, Positive cache size: 18020, Positive conditional cache size: 0, Positive unconditional cache size: 18020, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26945.0ms, 434 PlacesBefore, 348 PlacesAfterwards, 261 TransitionsBefore, 175 TransitionsAfterwards, 44548 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 86 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 86 TotalNumberOfCompositions, 18447 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18447, positive: 18447, positive conditional: 18447, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18447, positive: 18447, positive conditional: 0, positive unconditional: 18447, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18447, positive: 18447, positive conditional: 0, positive unconditional: 18447, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18447, positive: 18447, positive conditional: 0, positive unconditional: 18447, 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: 18447, positive: 11137, positive conditional: 0, positive unconditional: 11137, negative: 7310, negative conditional: 0, negative unconditional: 7310, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7310, positive: 7310, positive conditional: 0, positive unconditional: 7310, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 25111, positive: 25111, positive conditional: 0, positive unconditional: 25111, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18447, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 18447, unknown conditional: 0, unknown unconditional: 18447] , Statistics on independence cache: Total cache size (in pairs): 18447, Positive cache size: 18447, Positive conditional cache size: 0, Positive unconditional cache size: 18447, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.0ms, 349 PlacesBefore, 349 PlacesAfterwards, 174 TransitionsBefore, 174 TransitionsAfterwards, 14792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18447, Positive cache size: 18447, Positive conditional cache size: 0, Positive unconditional cache size: 18447, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29199.6ms, 439 PlacesBefore, 352 PlacesAfterwards, 264 TransitionsBefore, 177 TransitionsAfterwards, 45588 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 87 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 87 TotalNumberOfCompositions, 18879 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18879, positive: 18879, positive conditional: 18879, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18879, positive: 18879, positive conditional: 0, positive unconditional: 18879, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18879, positive: 18879, positive conditional: 0, positive unconditional: 18879, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18879, positive: 18879, positive conditional: 0, positive unconditional: 18879, 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: 18879, positive: 11397, positive conditional: 0, positive unconditional: 11397, negative: 7482, negative conditional: 0, negative unconditional: 7482, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7482, positive: 7482, positive conditional: 0, positive unconditional: 7482, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27193, positive: 27193, positive conditional: 0, positive unconditional: 27193, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18879, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 18879, unknown conditional: 0, unknown unconditional: 18879] , Statistics on independence cache: Total cache size (in pairs): 18879, Positive cache size: 18879, Positive conditional cache size: 0, Positive unconditional cache size: 18879, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.5ms, 353 PlacesBefore, 353 PlacesAfterwards, 176 TransitionsBefore, 176 TransitionsAfterwards, 15138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18879, Positive cache size: 18879, Positive conditional cache size: 0, Positive unconditional cache size: 18879, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29502.5ms, 444 PlacesBefore, 356 PlacesAfterwards, 267 TransitionsBefore, 179 TransitionsAfterwards, 46640 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 88 TotalNumberOfCompositions, 19316 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19316, positive: 19316, positive conditional: 19316, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19316, positive: 19316, positive conditional: 0, positive unconditional: 19316, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19316, positive: 19316, positive conditional: 0, positive unconditional: 19316, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19316, positive: 19316, positive conditional: 0, positive unconditional: 19316, 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: 19316, positive: 11660, positive conditional: 0, positive unconditional: 11660, negative: 7656, negative conditional: 0, negative unconditional: 7656, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7656, positive: 7656, positive conditional: 0, positive unconditional: 7656, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27334, positive: 27334, positive conditional: 0, positive unconditional: 27334, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19316, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 19316, unknown conditional: 0, unknown unconditional: 19316] , Statistics on independence cache: Total cache size (in pairs): 19316, Positive cache size: 19316, Positive conditional cache size: 0, Positive unconditional cache size: 19316, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.4ms, 357 PlacesBefore, 357 PlacesAfterwards, 178 TransitionsBefore, 178 TransitionsAfterwards, 15488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 19316, Positive cache size: 19316, Positive conditional cache size: 0, Positive unconditional cache size: 19316, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33486.6ms, 449 PlacesBefore, 360 PlacesAfterwards, 270 TransitionsBefore, 181 TransitionsAfterwards, 47704 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 89 TotalNumberOfCompositions, 19758 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19758, positive: 19758, positive conditional: 19758, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19758, positive: 19758, positive conditional: 0, positive unconditional: 19758, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19758, positive: 19758, positive conditional: 0, positive unconditional: 19758, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19758, positive: 19758, positive conditional: 0, positive unconditional: 19758, 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: 19758, positive: 11926, positive conditional: 0, positive unconditional: 11926, negative: 7832, negative conditional: 0, negative unconditional: 7832, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7832, positive: 7832, positive conditional: 0, positive unconditional: 7832, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31209, positive: 31209, positive conditional: 0, positive unconditional: 31209, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19758, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 19758, unknown conditional: 0, unknown unconditional: 19758] , Statistics on independence cache: Total cache size (in pairs): 19758, Positive cache size: 19758, Positive conditional cache size: 0, Positive unconditional cache size: 19758, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.9ms, 361 PlacesBefore, 361 PlacesAfterwards, 180 TransitionsBefore, 180 TransitionsAfterwards, 15842 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 19758, Positive cache size: 19758, Positive conditional cache size: 0, Positive unconditional cache size: 19758, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36558.6ms, 454 PlacesBefore, 364 PlacesAfterwards, 273 TransitionsBefore, 183 TransitionsAfterwards, 48780 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 90 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 90 TotalNumberOfCompositions, 20205 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20205, positive: 20205, positive conditional: 20205, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 20205, positive: 20205, positive conditional: 0, positive unconditional: 20205, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 20205, positive: 20205, positive conditional: 0, positive unconditional: 20205, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20205, positive: 20205, positive conditional: 0, positive unconditional: 20205, 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: 20205, positive: 12195, positive conditional: 0, positive unconditional: 12195, negative: 8010, negative conditional: 0, negative unconditional: 8010, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8010, positive: 8010, positive conditional: 0, positive unconditional: 8010, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34080, positive: 34080, positive conditional: 0, positive unconditional: 34080, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20205, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 20205, unknown conditional: 0, unknown unconditional: 20205] , Statistics on independence cache: Total cache size (in pairs): 20205, Positive cache size: 20205, Positive conditional cache size: 0, Positive unconditional cache size: 20205, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.8ms, 365 PlacesBefore, 365 PlacesAfterwards, 182 TransitionsBefore, 182 TransitionsAfterwards, 16200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 20205, Positive cache size: 20205, Positive conditional cache size: 0, Positive unconditional cache size: 20205, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38280.1ms, 459 PlacesBefore, 368 PlacesAfterwards, 276 TransitionsBefore, 185 TransitionsAfterwards, 49868 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 91 TotalNumberOfCompositions, 20657 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20657, positive: 20657, positive conditional: 20657, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 20657, positive: 20657, positive conditional: 0, positive unconditional: 20657, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 20657, positive: 20657, positive conditional: 0, positive unconditional: 20657, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20657, positive: 20657, positive conditional: 0, positive unconditional: 20657, 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: 20657, positive: 12467, positive conditional: 0, positive unconditional: 12467, negative: 8190, negative conditional: 0, negative unconditional: 8190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8190, positive: 8190, positive conditional: 0, positive unconditional: 8190, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35688, positive: 35688, positive conditional: 0, positive unconditional: 35688, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20657, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 20657, unknown conditional: 0, unknown unconditional: 20657] , Statistics on independence cache: Total cache size (in pairs): 20657, Positive cache size: 20657, Positive conditional cache size: 0, Positive unconditional cache size: 20657, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 179.4ms, 369 PlacesBefore, 369 PlacesAfterwards, 184 TransitionsBefore, 184 TransitionsAfterwards, 16562 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 20657, Positive cache size: 20657, Positive conditional cache size: 0, Positive unconditional cache size: 20657, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40307.9ms, 464 PlacesBefore, 372 PlacesAfterwards, 279 TransitionsBefore, 187 TransitionsAfterwards, 50968 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 92 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 92 TotalNumberOfCompositions, 21114 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21114, positive: 21114, positive conditional: 21114, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21114, positive: 21114, positive conditional: 0, positive unconditional: 21114, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21114, positive: 21114, positive conditional: 0, positive unconditional: 21114, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21114, positive: 21114, positive conditional: 0, positive unconditional: 21114, 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: 21114, positive: 12742, positive conditional: 0, positive unconditional: 12742, negative: 8372, negative conditional: 0, negative unconditional: 8372, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8372, positive: 8372, positive conditional: 0, positive unconditional: 8372, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37622, positive: 37622, positive conditional: 0, positive unconditional: 37622, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21114, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 21114, unknown conditional: 0, unknown unconditional: 21114] , Statistics on independence cache: Total cache size (in pairs): 21114, Positive cache size: 21114, Positive conditional cache size: 0, Positive unconditional cache size: 21114, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.4ms, 373 PlacesBefore, 373 PlacesAfterwards, 186 TransitionsBefore, 186 TransitionsAfterwards, 16928 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21114, Positive cache size: 21114, Positive conditional cache size: 0, Positive unconditional cache size: 21114, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41897.3ms, 469 PlacesBefore, 376 PlacesAfterwards, 282 TransitionsBefore, 189 TransitionsAfterwards, 52080 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 93 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 93 TotalNumberOfCompositions, 21576 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21576, positive: 21576, positive conditional: 21576, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 21576, positive: 21576, positive conditional: 0, positive unconditional: 21576, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21576, positive: 21576, positive conditional: 0, positive unconditional: 21576, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21576, positive: 21576, positive conditional: 0, positive unconditional: 21576, 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: 21576, positive: 13020, positive conditional: 0, positive unconditional: 13020, negative: 8556, negative conditional: 0, negative unconditional: 8556, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8556, positive: 8556, positive conditional: 0, positive unconditional: 8556, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 39158, positive: 39158, positive conditional: 0, positive unconditional: 39158, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21576, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 21576, unknown conditional: 0, unknown unconditional: 21576] , Statistics on independence cache: Total cache size (in pairs): 21576, Positive cache size: 21576, Positive conditional cache size: 0, Positive unconditional cache size: 21576, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.2ms, 377 PlacesBefore, 377 PlacesAfterwards, 188 TransitionsBefore, 188 TransitionsAfterwards, 17298 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21576, Positive cache size: 21576, Positive conditional cache size: 0, Positive unconditional cache size: 21576, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 30). Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 474 places, 285 transitions, 9782 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 474 places, 285 transitions, 9782 flow and 53204 co-enabled transitions pairs.,while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 1 error locations. Started 94 CEGAR loops. EmptinessCheckTime: 60.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 768517.3ms, OverallIterations: 186, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 10074.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 751996.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 93 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 363.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9399occurred in iteration=0, InterpolantAutomatonStates: 279, 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: 93.4ms SsaConstructionTime, 276.9ms SatisfiabilityAnalysisTime, 784.5ms InterpolantComputationTime, 4743 NumberOfCodeBlocks, 4743 NumberOfCodeBlocksAsserted, 186 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 279 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 93 InterpolantComputations, 93 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown