/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/fork_loop_noop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:44:19,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:44:19,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:44:19,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:44:19,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:44:20,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:44:20,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:44:20,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:44:20,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:44:20,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:44:20,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:44:20,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:44:20,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:44:20,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:44:20,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:44:20,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:44:20,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:44:20,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:44:20,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:44:20,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:44:20,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:44:20,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:44:20,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:44:20,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:44:20,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:44:20,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:44:20,079 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:44:20,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:44:20,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:44:20,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:44:20,081 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:44:20,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:44:20,082 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:44:20,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:44:20,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:44:20,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:44:20,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:44:20,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:44:20,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:44:20,086 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:44:20,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:44:20,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:44:20,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:44:20,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:44:20,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:44:20,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:44:20,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:44:20,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:44:20,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:44:20,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:44:20,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:44:20,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:44:20,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:44:20,092 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:44:20,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:44:20,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:44:20,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:44:20,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:44:20,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:44:20,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:44:20,513 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 03:44:20,514 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 03:44:20,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/fork_loop_noop.bpl [2021-04-29 03:44:20,516 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/fork_loop_noop.bpl' [2021-04-29 03:44:20,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:44:20,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 03:44:20,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:44:20,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:44:20,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:44:20,616 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 29.04 03:44:20" (1/1) ... [2021-04-29 03:44:20,624 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 29.04 03:44:20" (1/1) ... [2021-04-29 03:44:20,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:44:20,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:44:20,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:44:20,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:44:20,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:44:20" (1/1) ... [2021-04-29 03:44:20,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:44:20" (1/1) ... [2021-04-29 03:44:20,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:44:20" (1/1) ... [2021-04-29 03:44:20,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:44:20" (1/1) ... [2021-04-29 03:44:20,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:44:20" (1/1) ... [2021-04-29 03:44:20,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:44:20" (1/1) ... [2021-04-29 03:44:20,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:44:20" (1/1) ... [2021-04-29 03:44:20,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:44:20,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:44:20,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:44:20,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:44:20,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:44:20" (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 [2021-04-29 03:44:20,759 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 03:44:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:44:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:44:20,762 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2021-04-29 03:44:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-04-29 03:44:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-04-29 03:44:20,764 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:44:20,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:44:20,927 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-29 03:44:20,929 INFO L202 PluginConnector]: Adding new model fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:44:20 BoogieIcfgContainer [2021-04-29 03:44:20,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:44:20,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:44:20,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:44:20,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:44:20,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 03:44:20" (1/2) ... [2021-04-29 03:44:20,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f573b93 and model type fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:44:20, skipping insertion in model container [2021-04-29 03:44:20,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:44:20" (2/2) ... [2021-04-29 03:44:20,938 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_loop_noop.bpl [2021-04-29 03:44:20,946 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:44:20,951 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:44:20,952 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:44:20,981 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:21,006 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:21,036 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:21,037 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:21,037 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:21,037 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:21,037 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:21,037 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:21,037 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:21,038 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:21,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 11 places, 8 transitions, 21 flow [2021-04-29 03:44:21,073 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 03:44:21,074 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,076 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. [2021-04-29 03:44:21,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 11 places, 8 transitions, 21 flow [2021-04-29 03:44:21,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 9 places, 6 transitions, 17 flow [2021-04-29 03:44:21,083 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:21,104 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 9 places, 6 transitions, 17 flow [2021-04-29 03:44:21,109 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 9 places, 6 transitions, 17 flow [2021-04-29 03:44:21,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 9 places, 6 transitions, 17 flow [2021-04-29 03:44:21,113 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-04-29 03:44:21,113 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,113 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. [2021-04-29 03:44:21,116 INFO L146 LiptonReduction]: Number of co-enabled transitions 8 [2021-04-29 03:44:21,200 INFO L158 LiptonReduction]: Checked pairs total: 2 [2021-04-29 03:44:21,200 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 03:44:21,203 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 121 [2021-04-29 03:44:21,229 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:21,230 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,230 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:21,231 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:21,231 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:21,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:21,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1315, now seen corresponding path program 1 times [2021-04-29 03:44:21,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:21,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580240935] [2021-04-29 03:44:21,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:21,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:21,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:21,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580240935] [2021-04-29 03:44:21,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:21,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:21,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244692538] [2021-04-29 03:44:21,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:21,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:21,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:21,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:21,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 9 [2021-04-29 03:44:21,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 6 transitions, 17 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) [2021-04-29 03:44:21,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:21,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 9 [2021-04-29 03:44:21,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:21,637 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2021-04-29 03:44:21,637 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 5 events. 0/5 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 3 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. [2021-04-29 03:44:21,639 INFO L132 encePairwiseOnDemand]: 7/9 looper letters, 0 selfloop transitions, 1 changer transitions 0/5 dead transitions. [2021-04-29 03:44:21,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 5 transitions, 17 flow [2021-04-29 03:44:21,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:21,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2021-04-29 03:44:21,656 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2021-04-29 03:44:21,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 20 transitions. [2021-04-29 03:44:21,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 20 transitions. [2021-04-29 03:44:21,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:21,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 20 transitions. [2021-04-29 03:44:21,667 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) [2021-04-29 03:44:21,672 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) [2021-04-29 03:44:21,673 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) [2021-04-29 03:44:21,675 INFO L185 Difference]: Start difference. First operand has 9 places, 6 transitions, 17 flow. Second operand 3 states and 20 transitions. [2021-04-29 03:44:21,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 5 transitions, 17 flow [2021-04-29 03:44:21,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 5 transitions, 17 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:21,684 INFO L241 Difference]: Finished difference. Result has 10 places, 5 transitions, 17 flow [2021-04-29 03:44:21,687 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=9, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=17, PETRI_PLACES=10, PETRI_TRANSITIONS=5} [2021-04-29 03:44:21,688 INFO L343 CegarLoopForPetriNet]: 9 programPoint places, 1 predicate places. [2021-04-29 03:44:21,689 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:21,689 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 10 places, 5 transitions, 17 flow [2021-04-29 03:44:21,691 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 10 places, 5 transitions, 17 flow [2021-04-29 03:44:21,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 10 places, 5 transitions, 17 flow [2021-04-29 03:44:21,696 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2021-04-29 03:44:21,696 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 5 events. 0/5 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 3 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. [2021-04-29 03:44:21,697 INFO L146 LiptonReduction]: Number of co-enabled transitions 4 [2021-04-29 03:44:21,698 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:21,699 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:21,699 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-04-29 03:44:21,703 INFO L480 AbstractCegarLoop]: Abstraction has has 10 places, 5 transitions, 17 flow [2021-04-29 03:44:21,704 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) [2021-04-29 03:44:21,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:21,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 03:44:21,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:44:21,705 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:21,708 INFO L82 PathProgramCache]: Analyzing trace with hash 41033, now seen corresponding path program 1 times [2021-04-29 03:44:21,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:21,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334411099] [2021-04-29 03:44:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:21,724 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:21,731 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:21,751 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:21,751 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:21,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:44:21,754 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:21,758 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-04-29 03:44:21,774 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:21,775 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:21,778 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:21,779 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:21,779 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:21,779 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:21,779 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:21,779 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:21,779 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:21,780 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:21,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 16 places, 11 transitions, 34 flow [2021-04-29 03:44:21,788 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-04-29 03:44:21,788 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,789 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. [2021-04-29 03:44:21,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 16 places, 11 transitions, 34 flow [2021-04-29 03:44:21,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 14 places, 9 transitions, 30 flow [2021-04-29 03:44:21,790 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:21,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 9 transitions, 30 flow [2021-04-29 03:44:21,791 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 9 transitions, 30 flow [2021-04-29 03:44:21,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 9 transitions, 30 flow [2021-04-29 03:44:21,806 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 03:44:21,807 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,811 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. [2021-04-29 03:44:21,813 INFO L146 LiptonReduction]: Number of co-enabled transitions 28 [2021-04-29 03:44:21,906 INFO L158 LiptonReduction]: Checked pairs total: 9 [2021-04-29 03:44:21,906 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-29 03:44:21,907 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-04-29 03:44:21,909 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:21,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,910 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:21,910 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:21,910 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:21,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:21,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-04-29 03:44:21,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:21,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076508634] [2021-04-29 03:44:21,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:21,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:21,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:21,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:21,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076508634] [2021-04-29 03:44:21,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:21,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:21,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983526381] [2021-04-29 03:44:21,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:21,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:21,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:21,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:21,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 13 [2021-04-29 03:44:21,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 9 transitions, 30 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) [2021-04-29 03:44:21,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:21,928 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 13 [2021-04-29 03:44:21,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:21,932 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-04-29 03:44:21,932 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 8 events. 0/8 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. 3/9 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 03:44:21,933 INFO L132 encePairwiseOnDemand]: 11/13 looper letters, 0 selfloop transitions, 1 changer transitions 0/8 dead transitions. [2021-04-29 03:44:21,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 8 transitions, 30 flow [2021-04-29 03:44:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:21,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:21,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2021-04-29 03:44:21,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2021-04-29 03:44:21,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 32 transitions. [2021-04-29 03:44:21,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 32 transitions. [2021-04-29 03:44:21,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:21,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 32 transitions. [2021-04-29 03:44:21,936 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) [2021-04-29 03:44:21,937 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) [2021-04-29 03:44:21,937 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) [2021-04-29 03:44:21,937 INFO L185 Difference]: Start difference. First operand has 14 places, 9 transitions, 30 flow. Second operand 3 states and 32 transitions. [2021-04-29 03:44:21,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 8 transitions, 30 flow [2021-04-29 03:44:21,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 8 transitions, 28 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:21,939 INFO L241 Difference]: Finished difference. Result has 15 places, 8 transitions, 28 flow [2021-04-29 03:44:21,940 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, 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=28, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2021-04-29 03:44:21,940 INFO L343 CegarLoopForPetriNet]: 14 programPoint places, 1 predicate places. [2021-04-29 03:44:21,940 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:21,940 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 8 transitions, 28 flow [2021-04-29 03:44:21,941 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 8 transitions, 28 flow [2021-04-29 03:44:21,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 15 places, 8 transitions, 28 flow [2021-04-29 03:44:21,944 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-04-29 03:44:21,944 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19 conditions, 8 events. 0/8 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. 0/6 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 03:44:21,945 INFO L146 LiptonReduction]: Number of co-enabled transitions 20 [2021-04-29 03:44:21,946 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:21,946 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:21,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-04-29 03:44:21,948 INFO L480 AbstractCegarLoop]: Abstraction has has 15 places, 8 transitions, 28 flow [2021-04-29 03:44:21,948 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) [2021-04-29 03:44:21,949 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:21,949 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 03:44:21,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 03:44:21,949 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:21,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:21,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1643499, now seen corresponding path program 1 times [2021-04-29 03:44:21,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:21,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206619944] [2021-04-29 03:44:21,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:21,955 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:21,959 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:21,961 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:21,961 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:21,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 03:44:21,961 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:21,963 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-04-29 03:44:21,971 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:21,971 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:21,973 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:21,973 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:21,973 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:21,973 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:21,973 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:21,973 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:21,974 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:21,974 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:21,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 14 transitions, 49 flow [2021-04-29 03:44:21,981 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-04-29 03:44:21,981 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,981 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. [2021-04-29 03:44:21,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 14 transitions, 49 flow [2021-04-29 03:44:21,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 12 transitions, 45 flow [2021-04-29 03:44:21,982 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:21,983 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 12 transitions, 45 flow [2021-04-29 03:44:21,983 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 12 transitions, 45 flow [2021-04-29 03:44:21,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 12 transitions, 45 flow [2021-04-29 03:44:21,988 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-04-29 03:44:21,988 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:21,989 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. [2021-04-29 03:44:21,989 INFO L146 LiptonReduction]: Number of co-enabled transitions 60 [2021-04-29 03:44:22,055 INFO L158 LiptonReduction]: Checked pairs total: 21 [2021-04-29 03:44:22,055 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-29 03:44:22,056 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-04-29 03:44:22,058 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:22,058 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:22,058 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:22,059 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:22,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:22,059 INFO L82 PathProgramCache]: Analyzing trace with hash 2211, now seen corresponding path program 1 times [2021-04-29 03:44:22,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:22,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808365024] [2021-04-29 03:44:22,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:22,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:22,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:22,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808365024] [2021-04-29 03:44:22,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:22,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:22,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424746613] [2021-04-29 03:44:22,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:22,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:22,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:22,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:22,073 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 17 [2021-04-29 03:44:22,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 45 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) [2021-04-29 03:44:22,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:22,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 17 [2021-04-29 03:44:22,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:22,078 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 03:44:22,079 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 11 events. 0/11 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. 4/12 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 03:44:22,079 INFO L132 encePairwiseOnDemand]: 15/17 looper letters, 0 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2021-04-29 03:44:22,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 45 flow [2021-04-29 03:44:22,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2021-04-29 03:44:22,081 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8627450980392157 [2021-04-29 03:44:22,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 44 transitions. [2021-04-29 03:44:22,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 44 transitions. [2021-04-29 03:44:22,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:22,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 44 transitions. [2021-04-29 03:44:22,082 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) [2021-04-29 03:44:22,083 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) [2021-04-29 03:44:22,083 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) [2021-04-29 03:44:22,083 INFO L185 Difference]: Start difference. First operand has 19 places, 12 transitions, 45 flow. Second operand 3 states and 44 transitions. [2021-04-29 03:44:22,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 45 flow [2021-04-29 03:44:22,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 39 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:22,085 INFO L241 Difference]: Finished difference. Result has 20 places, 11 transitions, 39 flow [2021-04-29 03:44:22,085 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=39, PETRI_PLACES=20, PETRI_TRANSITIONS=11} [2021-04-29 03:44:22,086 INFO L343 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2021-04-29 03:44:22,086 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:22,086 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 11 transitions, 39 flow [2021-04-29 03:44:22,086 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 11 transitions, 39 flow [2021-04-29 03:44:22,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 11 transitions, 39 flow [2021-04-29 03:44:22,090 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 03:44:22,090 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 11 events. 0/11 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. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 03:44:22,091 INFO L146 LiptonReduction]: Number of co-enabled transitions 48 [2021-04-29 03:44:22,092 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:22,092 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:22,092 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-04-29 03:44:22,094 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 39 flow [2021-04-29 03:44:22,094 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) [2021-04-29 03:44:22,094 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:22,094 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 03:44:22,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 03:44:22,095 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:22,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:22,095 INFO L82 PathProgramCache]: Analyzing trace with hash 66279044, now seen corresponding path program 1 times [2021-04-29 03:44:22,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:22,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233559535] [2021-04-29 03:44:22,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:22,100 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:22,104 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:22,105 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:22,106 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:22,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 03:44:22,106 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:22,106 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-04-29 03:44:22,115 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:22,115 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:22,116 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:22,117 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:22,117 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:22,117 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:22,117 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:22,117 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:22,117 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:22,117 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:22,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 17 transitions, 66 flow [2021-04-29 03:44:22,125 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-04-29 03:44:22,125 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,125 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. [2021-04-29 03:44:22,125 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 17 transitions, 66 flow [2021-04-29 03:44:22,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 15 transitions, 62 flow [2021-04-29 03:44:22,126 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:22,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 15 transitions, 62 flow [2021-04-29 03:44:22,127 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 15 transitions, 62 flow [2021-04-29 03:44:22,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 15 transitions, 62 flow [2021-04-29 03:44:22,132 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-04-29 03:44:22,132 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,132 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. [2021-04-29 03:44:22,133 INFO L146 LiptonReduction]: Number of co-enabled transitions 104 [2021-04-29 03:44:22,214 INFO L158 LiptonReduction]: Checked pairs total: 38 [2021-04-29 03:44:22,214 INFO L160 LiptonReduction]: Total number of compositions: 4 [2021-04-29 03:44:22,214 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-04-29 03:44:22,217 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:22,217 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,217 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:22,217 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:22,217 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:22,218 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 1 times [2021-04-29 03:44:22,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:22,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967597978] [2021-04-29 03:44:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:22,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:22,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:22,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:22,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967597978] [2021-04-29 03:44:22,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:22,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:22,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680927533] [2021-04-29 03:44:22,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:22,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:22,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:22,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:22,233 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 21 [2021-04-29 03:44:22,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 62 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) [2021-04-29 03:44:22,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:22,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 21 [2021-04-29 03:44:22,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:22,240 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-04-29 03:44:22,240 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 14 events. 0/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 18 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. [2021-04-29 03:44:22,241 INFO L132 encePairwiseOnDemand]: 19/21 looper letters, 0 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2021-04-29 03:44:22,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 14 transitions, 62 flow [2021-04-29 03:44:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2021-04-29 03:44:22,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-04-29 03:44:22,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 56 transitions. [2021-04-29 03:44:22,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 56 transitions. [2021-04-29 03:44:22,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:22,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 56 transitions. [2021-04-29 03:44:22,244 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) [2021-04-29 03:44:22,245 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) [2021-04-29 03:44:22,245 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) [2021-04-29 03:44:22,246 INFO L185 Difference]: Start difference. First operand has 24 places, 15 transitions, 62 flow. Second operand 3 states and 56 transitions. [2021-04-29 03:44:22,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 14 transitions, 62 flow [2021-04-29 03:44:22,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 14 transitions, 50 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:22,248 INFO L241 Difference]: Finished difference. Result has 25 places, 14 transitions, 50 flow [2021-04-29 03:44:22,248 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=50, PETRI_PLACES=25, PETRI_TRANSITIONS=14} [2021-04-29 03:44:22,248 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2021-04-29 03:44:22,248 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:22,249 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 14 transitions, 50 flow [2021-04-29 03:44:22,249 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 14 transitions, 50 flow [2021-04-29 03:44:22,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 14 transitions, 50 flow [2021-04-29 03:44:22,253 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-04-29 03:44:22,254 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 14 events. 0/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 18 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. [2021-04-29 03:44:22,255 INFO L146 LiptonReduction]: Number of co-enabled transitions 88 [2021-04-29 03:44:22,256 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:22,256 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:22,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-29 03:44:22,258 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 14 transitions, 50 flow [2021-04-29 03:44:22,259 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) [2021-04-29 03:44:22,259 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:22,259 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 03:44:22,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 03:44:22,259 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:22,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1646739026, now seen corresponding path program 1 times [2021-04-29 03:44:22,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:22,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197940423] [2021-04-29 03:44:22,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:22,266 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:22,269 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:22,271 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:22,271 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:22,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 03:44:22,272 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:22,272 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-04-29 03:44:22,282 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:22,283 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:22,284 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:22,284 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:22,284 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:22,284 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:22,284 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:22,285 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:22,285 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:22,285 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:22,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 20 transitions, 85 flow [2021-04-29 03:44:22,293 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-04-29 03:44:22,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,293 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. [2021-04-29 03:44:22,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 20 transitions, 85 flow [2021-04-29 03:44:22,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 18 transitions, 81 flow [2021-04-29 03:44:22,294 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:22,295 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 18 transitions, 81 flow [2021-04-29 03:44:22,295 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 18 transitions, 81 flow [2021-04-29 03:44:22,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 18 transitions, 81 flow [2021-04-29 03:44:22,300 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-04-29 03:44:22,301 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,301 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. [2021-04-29 03:44:22,302 INFO L146 LiptonReduction]: Number of co-enabled transitions 160 [2021-04-29 03:44:22,450 INFO L158 LiptonReduction]: Checked pairs total: 60 [2021-04-29 03:44:22,450 INFO L160 LiptonReduction]: Total number of compositions: 5 [2021-04-29 03:44:22,450 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 156 [2021-04-29 03:44:22,460 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:22,460 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,460 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:22,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:22,461 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:22,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:22,462 INFO L82 PathProgramCache]: Analyzing trace with hash 3619, now seen corresponding path program 1 times [2021-04-29 03:44:22,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:22,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143196836] [2021-04-29 03:44:22,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:22,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:22,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:22,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143196836] [2021-04-29 03:44:22,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:22,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:22,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290386026] [2021-04-29 03:44:22,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:22,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:22,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:22,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:22,492 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 25 [2021-04-29 03:44:22,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 81 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) [2021-04-29 03:44:22,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:22,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 25 [2021-04-29 03:44:22,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:22,504 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-04-29 03:44:22,507 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 21 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. [2021-04-29 03:44:22,508 INFO L132 encePairwiseOnDemand]: 23/25 looper letters, 0 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2021-04-29 03:44:22,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 17 transitions, 81 flow [2021-04-29 03:44:22,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:22,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2021-04-29 03:44:22,509 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9066666666666666 [2021-04-29 03:44:22,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 68 transitions. [2021-04-29 03:44:22,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 68 transitions. [2021-04-29 03:44:22,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:22,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 68 transitions. [2021-04-29 03:44:22,512 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) [2021-04-29 03:44:22,515 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) [2021-04-29 03:44:22,516 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) [2021-04-29 03:44:22,516 INFO L185 Difference]: Start difference. First operand has 29 places, 18 transitions, 81 flow. Second operand 3 states and 68 transitions. [2021-04-29 03:44:22,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 17 transitions, 81 flow [2021-04-29 03:44:22,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 17 transitions, 61 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:22,524 INFO L241 Difference]: Finished difference. Result has 30 places, 17 transitions, 61 flow [2021-04-29 03:44:22,524 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=30, PETRI_TRANSITIONS=17} [2021-04-29 03:44:22,524 INFO L343 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2021-04-29 03:44:22,524 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:22,524 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 17 transitions, 61 flow [2021-04-29 03:44:22,525 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 17 transitions, 61 flow [2021-04-29 03:44:22,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 17 transitions, 61 flow [2021-04-29 03:44:22,533 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-04-29 03:44:22,533 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 25 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. [2021-04-29 03:44:22,534 INFO L146 LiptonReduction]: Number of co-enabled transitions 140 [2021-04-29 03:44:22,541 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:22,542 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:22,542 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-04-29 03:44:22,543 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 17 transitions, 61 flow [2021-04-29 03:44:22,543 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) [2021-04-29 03:44:22,544 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:22,544 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:22,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 03:44:22,544 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:22,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:22,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1085119695, now seen corresponding path program 1 times [2021-04-29 03:44:22,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:22,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298478933] [2021-04-29 03:44:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:22,555 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:22,559 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:22,562 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:22,562 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:22,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 03:44:22,562 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:22,563 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-04-29 03:44:22,573 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:22,573 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:22,574 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:22,575 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:22,575 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:22,575 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:22,575 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:22,575 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:22,575 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:22,575 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:22,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 23 transitions, 106 flow [2021-04-29 03:44:22,583 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-04-29 03:44:22,584 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,584 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. [2021-04-29 03:44:22,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 23 transitions, 106 flow [2021-04-29 03:44:22,585 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 21 transitions, 102 flow [2021-04-29 03:44:22,585 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:22,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 21 transitions, 102 flow [2021-04-29 03:44:22,585 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 21 transitions, 102 flow [2021-04-29 03:44:22,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 21 transitions, 102 flow [2021-04-29 03:44:22,593 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-29 03:44:22,593 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,594 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. [2021-04-29 03:44:22,594 INFO L146 LiptonReduction]: Number of co-enabled transitions 228 [2021-04-29 03:44:22,804 INFO L158 LiptonReduction]: Checked pairs total: 87 [2021-04-29 03:44:22,804 INFO L160 LiptonReduction]: Total number of compositions: 6 [2021-04-29 03:44:22,805 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 220 [2021-04-29 03:44:22,811 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:22,811 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,811 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:22,811 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:22,812 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:22,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:22,812 INFO L82 PathProgramCache]: Analyzing trace with hash 4515, now seen corresponding path program 1 times [2021-04-29 03:44:22,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:22,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046965679] [2021-04-29 03:44:22,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:22,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:22,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:22,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046965679] [2021-04-29 03:44:22,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:22,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:22,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771424163] [2021-04-29 03:44:22,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:22,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:22,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:22,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:22,845 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 29 [2021-04-29 03:44:22,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 102 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) [2021-04-29 03:44:22,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:22,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 29 [2021-04-29 03:44:22,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:22,858 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-04-29 03:44:22,858 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 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. [2021-04-29 03:44:22,859 INFO L132 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2021-04-29 03:44:22,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 20 transitions, 102 flow [2021-04-29 03:44:22,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:22,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:22,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2021-04-29 03:44:22,865 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9195402298850575 [2021-04-29 03:44:22,865 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 80 transitions. [2021-04-29 03:44:22,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 80 transitions. [2021-04-29 03:44:22,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:22,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 80 transitions. [2021-04-29 03:44:22,869 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) [2021-04-29 03:44:22,871 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) [2021-04-29 03:44:22,871 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) [2021-04-29 03:44:22,872 INFO L185 Difference]: Start difference. First operand has 34 places, 21 transitions, 102 flow. Second operand 3 states and 80 transitions. [2021-04-29 03:44:22,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 20 transitions, 102 flow [2021-04-29 03:44:22,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 20 transitions, 72 flow, removed 15 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:22,877 INFO L241 Difference]: Finished difference. Result has 35 places, 20 transitions, 72 flow [2021-04-29 03:44:22,877 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=33, 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=72, PETRI_PLACES=35, PETRI_TRANSITIONS=20} [2021-04-29 03:44:22,877 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2021-04-29 03:44:22,878 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:22,878 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 20 transitions, 72 flow [2021-04-29 03:44:22,878 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 20 transitions, 72 flow [2021-04-29 03:44:22,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 20 transitions, 72 flow [2021-04-29 03:44:22,885 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-04-29 03:44:22,885 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 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. [2021-04-29 03:44:22,886 INFO L146 LiptonReduction]: Number of co-enabled transitions 204 [2021-04-29 03:44:22,889 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:22,889 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:22,889 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-04-29 03:44:22,891 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 20 transitions, 72 flow [2021-04-29 03:44:22,891 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) [2021-04-29 03:44:22,891 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:22,891 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:22,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 03:44:22,892 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:22,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:22,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1719135375, now seen corresponding path program 1 times [2021-04-29 03:44:22,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:22,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916873140] [2021-04-29 03:44:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:22,909 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:22,916 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:22,922 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:22,923 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:22,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 03:44:22,923 WARN L342 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:22,923 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-04-29 03:44:22,944 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:22,944 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:22,946 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:22,946 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:22,946 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:22,949 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:22,949 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:22,950 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:22,950 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:22,950 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:22,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 26 transitions, 129 flow [2021-04-29 03:44:22,961 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-04-29 03:44:22,961 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,962 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. [2021-04-29 03:44:22,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 26 transitions, 129 flow [2021-04-29 03:44:22,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 24 transitions, 125 flow [2021-04-29 03:44:22,963 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:22,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 24 transitions, 125 flow [2021-04-29 03:44:22,963 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 24 transitions, 125 flow [2021-04-29 03:44:22,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 24 transitions, 125 flow [2021-04-29 03:44:22,977 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-04-29 03:44:22,977 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:22,978 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. [2021-04-29 03:44:22,979 INFO L146 LiptonReduction]: Number of co-enabled transitions 308 [2021-04-29 03:44:23,205 INFO L158 LiptonReduction]: Checked pairs total: 119 [2021-04-29 03:44:23,206 INFO L160 LiptonReduction]: Total number of compositions: 7 [2021-04-29 03:44:23,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 243 [2021-04-29 03:44:23,208 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:23,208 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,208 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:23,208 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:23,208 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:23,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:23,209 INFO L82 PathProgramCache]: Analyzing trace with hash 5539, now seen corresponding path program 1 times [2021-04-29 03:44:23,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:23,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512188421] [2021-04-29 03:44:23,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:23,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:23,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:23,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:23,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512188421] [2021-04-29 03:44:23,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:23,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:23,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635597000] [2021-04-29 03:44:23,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:23,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:23,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:23,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:23,222 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 33 [2021-04-29 03:44:23,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 125 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) [2021-04-29 03:44:23,223 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:23,223 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 33 [2021-04-29 03:44:23,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:23,228 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-04-29 03:44:23,229 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 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 39 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. [2021-04-29 03:44:23,229 INFO L132 encePairwiseOnDemand]: 31/33 looper letters, 0 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2021-04-29 03:44:23,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 23 transitions, 125 flow [2021-04-29 03:44:23,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:23,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:23,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2021-04-29 03:44:23,230 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9292929292929293 [2021-04-29 03:44:23,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 92 transitions. [2021-04-29 03:44:23,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 92 transitions. [2021-04-29 03:44:23,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:23,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 92 transitions. [2021-04-29 03:44:23,232 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) [2021-04-29 03:44:23,232 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) [2021-04-29 03:44:23,233 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) [2021-04-29 03:44:23,233 INFO L185 Difference]: Start difference. First operand has 39 places, 24 transitions, 125 flow. Second operand 3 states and 92 transitions. [2021-04-29 03:44:23,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 23 transitions, 125 flow [2021-04-29 03:44:23,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 23 transitions, 83 flow, removed 21 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:23,236 INFO L241 Difference]: Finished difference. Result has 40 places, 23 transitions, 83 flow [2021-04-29 03:44:23,236 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2021-04-29 03:44:23,236 INFO L343 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2021-04-29 03:44:23,236 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:23,237 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 23 transitions, 83 flow [2021-04-29 03:44:23,237 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 23 transitions, 83 flow [2021-04-29 03:44:23,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 23 transitions, 83 flow [2021-04-29 03:44:23,241 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-04-29 03:44:23,241 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,241 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 51 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. [2021-04-29 03:44:23,242 INFO L146 LiptonReduction]: Number of co-enabled transitions 280 [2021-04-29 03:44:23,244 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:23,245 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:23,245 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-29 03:44:23,246 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 83 flow [2021-04-29 03:44:23,246 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) [2021-04-29 03:44:23,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:23,246 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:23,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-29 03:44:23,247 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:23,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:23,247 INFO L82 PathProgramCache]: Analyzing trace with hash 779611434, now seen corresponding path program 1 times [2021-04-29 03:44:23,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:23,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708147043] [2021-04-29 03:44:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:23,253 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:23,257 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:23,260 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:23,260 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:23,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-29 03:44:23,260 WARN L342 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:23,261 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-04-29 03:44:23,273 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:23,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:23,274 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:23,275 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:23,275 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:23,275 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:23,275 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:23,275 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:23,275 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:23,275 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:23,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 29 transitions, 154 flow [2021-04-29 03:44:23,282 INFO L129 PetriNetUnfolder]: 0/53 cut-off events. [2021-04-29 03:44:23,282 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,282 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. [2021-04-29 03:44:23,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 29 transitions, 154 flow [2021-04-29 03:44:23,283 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 27 transitions, 150 flow [2021-04-29 03:44:23,283 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:23,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 27 transitions, 150 flow [2021-04-29 03:44:23,284 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 27 transitions, 150 flow [2021-04-29 03:44:23,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 27 transitions, 150 flow [2021-04-29 03:44:23,288 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-04-29 03:44:23,288 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,289 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. [2021-04-29 03:44:23,290 INFO L146 LiptonReduction]: Number of co-enabled transitions 400 [2021-04-29 03:44:23,480 INFO L158 LiptonReduction]: Checked pairs total: 156 [2021-04-29 03:44:23,480 INFO L160 LiptonReduction]: Total number of compositions: 8 [2021-04-29 03:44:23,481 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 198 [2021-04-29 03:44:23,482 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:23,482 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,482 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:23,483 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:23,483 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:23,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:23,483 INFO L82 PathProgramCache]: Analyzing trace with hash 6691, now seen corresponding path program 1 times [2021-04-29 03:44:23,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:23,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483573593] [2021-04-29 03:44:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:23,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:23,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:23,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483573593] [2021-04-29 03:44:23,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:23,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:23,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015933881] [2021-04-29 03:44:23,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:23,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:23,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:23,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:23,496 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 37 [2021-04-29 03:44:23,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 150 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) [2021-04-29 03:44:23,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:23,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 37 [2021-04-29 03:44:23,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:23,502 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-04-29 03:44:23,502 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 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. [2021-04-29 03:44:23,502 INFO L132 encePairwiseOnDemand]: 35/37 looper letters, 0 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2021-04-29 03:44:23,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 26 transitions, 150 flow [2021-04-29 03:44:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:23,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2021-04-29 03:44:23,518 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9369369369369369 [2021-04-29 03:44:23,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 104 transitions. [2021-04-29 03:44:23,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 104 transitions. [2021-04-29 03:44:23,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:23,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 104 transitions. [2021-04-29 03:44:23,520 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) [2021-04-29 03:44:23,521 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) [2021-04-29 03:44:23,521 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) [2021-04-29 03:44:23,521 INFO L185 Difference]: Start difference. First operand has 44 places, 27 transitions, 150 flow. Second operand 3 states and 104 transitions. [2021-04-29 03:44:23,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 26 transitions, 150 flow [2021-04-29 03:44:23,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 26 transitions, 94 flow, removed 28 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:23,524 INFO L241 Difference]: Finished difference. Result has 45 places, 26 transitions, 94 flow [2021-04-29 03:44:23,524 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=43, 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=94, PETRI_PLACES=45, PETRI_TRANSITIONS=26} [2021-04-29 03:44:23,524 INFO L343 CegarLoopForPetriNet]: 44 programPoint places, 1 predicate places. [2021-04-29 03:44:23,524 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:23,524 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 26 transitions, 94 flow [2021-04-29 03:44:23,525 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 26 transitions, 94 flow [2021-04-29 03:44:23,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 26 transitions, 94 flow [2021-04-29 03:44:23,528 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-04-29 03:44:23,529 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 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. [2021-04-29 03:44:23,529 INFO L146 LiptonReduction]: Number of co-enabled transitions 368 [2021-04-29 03:44:23,532 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:23,532 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:23,532 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-04-29 03:44:23,533 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 26 transitions, 94 flow [2021-04-29 03:44:23,533 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) [2021-04-29 03:44:23,533 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:23,534 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:23,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-29 03:44:23,534 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:23,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:23,534 INFO L82 PathProgramCache]: Analyzing trace with hash -2053304524, now seen corresponding path program 1 times [2021-04-29 03:44:23,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:23,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839887003] [2021-04-29 03:44:23,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:23,540 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:23,543 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:23,546 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:23,546 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:23,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-29 03:44:23,546 WARN L342 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:23,547 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2021-04-29 03:44:23,558 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:23,558 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:23,559 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:23,560 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:23,560 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:23,560 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:23,560 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:23,560 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:23,560 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:23,560 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:23,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 32 transitions, 181 flow [2021-04-29 03:44:23,567 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-04-29 03:44:23,567 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,567 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. [2021-04-29 03:44:23,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 32 transitions, 181 flow [2021-04-29 03:44:23,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 30 transitions, 177 flow [2021-04-29 03:44:23,568 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:23,568 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 30 transitions, 177 flow [2021-04-29 03:44:23,569 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 30 transitions, 177 flow [2021-04-29 03:44:23,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 30 transitions, 177 flow [2021-04-29 03:44:23,574 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-04-29 03:44:23,574 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,574 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. [2021-04-29 03:44:23,575 INFO L146 LiptonReduction]: Number of co-enabled transitions 504 [2021-04-29 03:44:23,806 INFO L158 LiptonReduction]: Checked pairs total: 198 [2021-04-29 03:44:23,806 INFO L160 LiptonReduction]: Total number of compositions: 9 [2021-04-29 03:44:23,807 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 239 [2021-04-29 03:44:23,808 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:23,808 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,809 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:23,809 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:23,809 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:23,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:23,809 INFO L82 PathProgramCache]: Analyzing trace with hash 7971, now seen corresponding path program 1 times [2021-04-29 03:44:23,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:23,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70801454] [2021-04-29 03:44:23,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:23,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:23,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:23,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:23,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70801454] [2021-04-29 03:44:23,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:23,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:23,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99080450] [2021-04-29 03:44:23,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:23,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:23,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:23,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:23,823 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 41 [2021-04-29 03:44:23,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 177 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) [2021-04-29 03:44:23,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:23,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 41 [2021-04-29 03:44:23,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:23,830 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-04-29 03:44:23,830 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 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. [2021-04-29 03:44:23,830 INFO L132 encePairwiseOnDemand]: 39/41 looper letters, 0 selfloop transitions, 1 changer transitions 0/29 dead transitions. [2021-04-29 03:44:23,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 29 transitions, 177 flow [2021-04-29 03:44:23,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:23,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:23,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2021-04-29 03:44:23,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.943089430894309 [2021-04-29 03:44:23,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 116 transitions. [2021-04-29 03:44:23,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 116 transitions. [2021-04-29 03:44:23,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:23,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 116 transitions. [2021-04-29 03:44:23,833 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) [2021-04-29 03:44:23,833 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) [2021-04-29 03:44:23,834 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) [2021-04-29 03:44:23,834 INFO L185 Difference]: Start difference. First operand has 49 places, 30 transitions, 177 flow. Second operand 3 states and 116 transitions. [2021-04-29 03:44:23,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 29 transitions, 177 flow [2021-04-29 03:44:23,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 29 transitions, 105 flow, removed 36 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:23,837 INFO L241 Difference]: Finished difference. Result has 50 places, 29 transitions, 105 flow [2021-04-29 03:44:23,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=50, PETRI_TRANSITIONS=29} [2021-04-29 03:44:23,838 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2021-04-29 03:44:23,838 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:23,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 29 transitions, 105 flow [2021-04-29 03:44:23,839 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 29 transitions, 105 flow [2021-04-29 03:44:23,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 29 transitions, 105 flow [2021-04-29 03:44:23,843 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-04-29 03:44:23,843 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 44 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. [2021-04-29 03:44:23,844 INFO L146 LiptonReduction]: Number of co-enabled transitions 468 [2021-04-29 03:44:23,847 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:23,847 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:23,847 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-29 03:44:23,848 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 29 transitions, 105 flow [2021-04-29 03:44:23,848 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) [2021-04-29 03:44:23,848 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:23,848 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:23,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-29 03:44:23,849 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:23,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:23,849 INFO L82 PathProgramCache]: Analyzing trace with hash -607272555, now seen corresponding path program 1 times [2021-04-29 03:44:23,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:23,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756126375] [2021-04-29 03:44:23,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:23,855 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:23,859 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:23,861 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:23,861 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:23,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-04-29 03:44:23,862 WARN L342 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:23,862 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2021-04-29 03:44:23,881 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:23,881 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:23,882 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:23,882 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:23,883 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:23,883 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:23,883 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:23,883 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:23,883 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:23,883 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:23,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 35 transitions, 210 flow [2021-04-29 03:44:23,894 INFO L129 PetriNetUnfolder]: 0/65 cut-off events. [2021-04-29 03:44:23,894 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,894 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. [2021-04-29 03:44:23,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 35 transitions, 210 flow [2021-04-29 03:44:23,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 33 transitions, 206 flow [2021-04-29 03:44:23,896 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:23,897 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 33 transitions, 206 flow [2021-04-29 03:44:23,897 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 33 transitions, 206 flow [2021-04-29 03:44:23,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 33 transitions, 206 flow [2021-04-29 03:44:23,910 INFO L129 PetriNetUnfolder]: 0/43 cut-off events. [2021-04-29 03:44:23,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:23,911 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. [2021-04-29 03:44:23,914 INFO L146 LiptonReduction]: Number of co-enabled transitions 620 [2021-04-29 03:44:24,207 INFO L158 LiptonReduction]: Checked pairs total: 245 [2021-04-29 03:44:24,208 INFO L160 LiptonReduction]: Total number of compositions: 10 [2021-04-29 03:44:24,208 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 312 [2021-04-29 03:44:24,209 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:24,210 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,210 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:24,210 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:24,210 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:24,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:24,210 INFO L82 PathProgramCache]: Analyzing trace with hash 9379, now seen corresponding path program 1 times [2021-04-29 03:44:24,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:24,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164106256] [2021-04-29 03:44:24,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:24,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:24,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:24,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:24,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164106256] [2021-04-29 03:44:24,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:24,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:24,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185740258] [2021-04-29 03:44:24,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:24,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:24,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:24,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:24,222 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 45 [2021-04-29 03:44:24,223 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 33 transitions, 206 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) [2021-04-29 03:44:24,223 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:24,223 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 45 [2021-04-29 03:44:24,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:24,229 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-04-29 03:44:24,229 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 32 events. 0/32 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. 11/33 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-04-29 03:44:24,229 INFO L132 encePairwiseOnDemand]: 43/45 looper letters, 0 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2021-04-29 03:44:24,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 32 transitions, 206 flow [2021-04-29 03:44:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:24,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2021-04-29 03:44:24,231 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9481481481481482 [2021-04-29 03:44:24,231 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 128 transitions. [2021-04-29 03:44:24,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 128 transitions. [2021-04-29 03:44:24,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:24,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 128 transitions. [2021-04-29 03:44:24,232 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) [2021-04-29 03:44:24,232 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) [2021-04-29 03:44:24,233 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) [2021-04-29 03:44:24,233 INFO L185 Difference]: Start difference. First operand has 54 places, 33 transitions, 206 flow. Second operand 3 states and 128 transitions. [2021-04-29 03:44:24,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 32 transitions, 206 flow [2021-04-29 03:44:24,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 32 transitions, 116 flow, removed 45 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:24,236 INFO L241 Difference]: Finished difference. Result has 55 places, 32 transitions, 116 flow [2021-04-29 03:44:24,236 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=53, 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=116, PETRI_PLACES=55, PETRI_TRANSITIONS=32} [2021-04-29 03:44:24,237 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2021-04-29 03:44:24,237 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:24,237 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 32 transitions, 116 flow [2021-04-29 03:44:24,237 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 32 transitions, 116 flow [2021-04-29 03:44:24,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 32 transitions, 116 flow [2021-04-29 03:44:24,241 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-04-29 03:44:24,241 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 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. [2021-04-29 03:44:24,242 INFO L146 LiptonReduction]: Number of co-enabled transitions 580 [2021-04-29 03:44:24,246 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:24,246 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:24,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-29 03:44:24,247 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 32 transitions, 116 flow [2021-04-29 03:44:24,247 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) [2021-04-29 03:44:24,247 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:24,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:24,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-04-29 03:44:24,248 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:24,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:24,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1208304905, now seen corresponding path program 1 times [2021-04-29 03:44:24,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:24,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680554355] [2021-04-29 03:44:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:24,254 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:24,257 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:24,260 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:24,260 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:24,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-04-29 03:44:24,261 WARN L342 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:24,261 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2021-04-29 03:44:24,277 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:24,277 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:24,278 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:24,278 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:24,278 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:24,278 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:24,278 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:24,279 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:24,279 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:24,279 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:24,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 38 transitions, 241 flow [2021-04-29 03:44:24,287 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-04-29 03:44:24,288 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,288 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. [2021-04-29 03:44:24,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 38 transitions, 241 flow [2021-04-29 03:44:24,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 36 transitions, 237 flow [2021-04-29 03:44:24,289 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:24,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 36 transitions, 237 flow [2021-04-29 03:44:24,289 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 36 transitions, 237 flow [2021-04-29 03:44:24,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 36 transitions, 237 flow [2021-04-29 03:44:24,296 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-04-29 03:44:24,296 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,296 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. [2021-04-29 03:44:24,298 INFO L146 LiptonReduction]: Number of co-enabled transitions 748 [2021-04-29 03:44:24,677 INFO L158 LiptonReduction]: Checked pairs total: 297 [2021-04-29 03:44:24,677 INFO L160 LiptonReduction]: Total number of compositions: 11 [2021-04-29 03:44:24,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 389 [2021-04-29 03:44:24,679 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:24,680 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:24,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:24,680 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:24,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:24,680 INFO L82 PathProgramCache]: Analyzing trace with hash 10915, now seen corresponding path program 1 times [2021-04-29 03:44:24,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:24,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575260684] [2021-04-29 03:44:24,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:24,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:24,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:24,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:24,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575260684] [2021-04-29 03:44:24,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:24,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:24,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931480286] [2021-04-29 03:44:24,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:24,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:24,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:24,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:24,694 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 49 [2021-04-29 03:44:24,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 36 transitions, 237 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) [2021-04-29 03:44:24,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:24,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 49 [2021-04-29 03:44:24,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:24,701 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-04-29 03:44:24,701 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 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 57 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. [2021-04-29 03:44:24,702 INFO L132 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 1 changer transitions 0/35 dead transitions. [2021-04-29 03:44:24,702 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 35 transitions, 237 flow [2021-04-29 03:44:24,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:24,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2021-04-29 03:44:24,703 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-04-29 03:44:24,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 140 transitions. [2021-04-29 03:44:24,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 140 transitions. [2021-04-29 03:44:24,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:24,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 140 transitions. [2021-04-29 03:44:24,704 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) [2021-04-29 03:44:24,705 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) [2021-04-29 03:44:24,705 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) [2021-04-29 03:44:24,705 INFO L185 Difference]: Start difference. First operand has 59 places, 36 transitions, 237 flow. Second operand 3 states and 140 transitions. [2021-04-29 03:44:24,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 35 transitions, 237 flow [2021-04-29 03:44:24,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 35 transitions, 127 flow, removed 55 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:24,709 INFO L241 Difference]: Finished difference. Result has 60 places, 35 transitions, 127 flow [2021-04-29 03:44:24,709 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=60, PETRI_TRANSITIONS=35} [2021-04-29 03:44:24,709 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 1 predicate places. [2021-04-29 03:44:24,709 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:24,710 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 35 transitions, 127 flow [2021-04-29 03:44:24,710 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 35 transitions, 127 flow [2021-04-29 03:44:24,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 35 transitions, 127 flow [2021-04-29 03:44:24,715 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-04-29 03:44:24,715 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 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 59 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. [2021-04-29 03:44:24,716 INFO L146 LiptonReduction]: Number of co-enabled transitions 704 [2021-04-29 03:44:24,720 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:24,720 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:24,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-04-29 03:44:24,721 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 35 transitions, 127 flow [2021-04-29 03:44:24,722 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) [2021-04-29 03:44:24,722 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:24,722 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:24,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-04-29 03:44:24,722 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:24,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:24,723 INFO L82 PathProgramCache]: Analyzing trace with hash 941462544, now seen corresponding path program 1 times [2021-04-29 03:44:24,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:24,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009052558] [2021-04-29 03:44:24,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:24,728 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:24,732 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:24,734 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:24,735 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:24,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-04-29 03:44:24,735 WARN L342 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:24,735 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2021-04-29 03:44:24,753 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:24,753 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:24,754 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:24,754 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:24,754 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:24,755 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:24,755 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:24,755 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:24,755 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:24,755 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:24,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 41 transitions, 274 flow [2021-04-29 03:44:24,764 INFO L129 PetriNetUnfolder]: 0/77 cut-off events. [2021-04-29 03:44:24,765 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,765 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. [2021-04-29 03:44:24,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 41 transitions, 274 flow [2021-04-29 03:44:24,766 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 39 transitions, 270 flow [2021-04-29 03:44:24,766 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:24,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 39 transitions, 270 flow [2021-04-29 03:44:24,767 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 39 transitions, 270 flow [2021-04-29 03:44:24,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 39 transitions, 270 flow [2021-04-29 03:44:24,774 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-04-29 03:44:24,774 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:24,775 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. [2021-04-29 03:44:24,776 INFO L146 LiptonReduction]: Number of co-enabled transitions 888 [2021-04-29 03:44:25,155 INFO L158 LiptonReduction]: Checked pairs total: 354 [2021-04-29 03:44:25,155 INFO L160 LiptonReduction]: Total number of compositions: 12 [2021-04-29 03:44:25,155 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 389 [2021-04-29 03:44:25,157 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:25,157 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,157 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:25,157 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:25,157 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:25,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:25,158 INFO L82 PathProgramCache]: Analyzing trace with hash 12579, now seen corresponding path program 1 times [2021-04-29 03:44:25,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:25,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434334298] [2021-04-29 03:44:25,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:25,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:25,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:25,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434334298] [2021-04-29 03:44:25,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:25,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:25,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842220283] [2021-04-29 03:44:25,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:25,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:25,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:25,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:25,169 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 53 [2021-04-29 03:44:25,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 39 transitions, 270 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) [2021-04-29 03:44:25,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:25,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 53 [2021-04-29 03:44:25,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:25,177 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-04-29 03:44:25,177 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 66 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. [2021-04-29 03:44:25,178 INFO L132 encePairwiseOnDemand]: 51/53 looper letters, 0 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2021-04-29 03:44:25,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 38 transitions, 270 flow [2021-04-29 03:44:25,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:25,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2021-04-29 03:44:25,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9559748427672956 [2021-04-29 03:44:25,179 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 152 transitions. [2021-04-29 03:44:25,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 152 transitions. [2021-04-29 03:44:25,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:25,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 152 transitions. [2021-04-29 03:44:25,180 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) [2021-04-29 03:44:25,181 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) [2021-04-29 03:44:25,181 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) [2021-04-29 03:44:25,181 INFO L185 Difference]: Start difference. First operand has 64 places, 39 transitions, 270 flow. Second operand 3 states and 152 transitions. [2021-04-29 03:44:25,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 38 transitions, 270 flow [2021-04-29 03:44:25,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 38 transitions, 138 flow, removed 66 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:25,185 INFO L241 Difference]: Finished difference. Result has 65 places, 38 transitions, 138 flow [2021-04-29 03:44:25,185 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=63, 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=138, PETRI_PLACES=65, PETRI_TRANSITIONS=38} [2021-04-29 03:44:25,185 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2021-04-29 03:44:25,185 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:25,186 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 38 transitions, 138 flow [2021-04-29 03:44:25,186 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 38 transitions, 138 flow [2021-04-29 03:44:25,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 38 transitions, 138 flow [2021-04-29 03:44:25,191 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-04-29 03:44:25,191 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 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. [2021-04-29 03:44:25,192 INFO L146 LiptonReduction]: Number of co-enabled transitions 840 [2021-04-29 03:44:25,197 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:25,197 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:25,197 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-04-29 03:44:25,198 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 38 transitions, 138 flow [2021-04-29 03:44:25,198 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) [2021-04-29 03:44:25,198 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:25,198 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:25,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-04-29 03:44:25,199 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:25,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:25,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1127292090, now seen corresponding path program 1 times [2021-04-29 03:44:25,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:25,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460543526] [2021-04-29 03:44:25,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:25,205 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:25,208 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:25,211 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:25,211 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:25,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-04-29 03:44:25,212 WARN L342 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:25,212 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2021-04-29 03:44:25,229 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:25,230 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:25,231 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:25,231 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:25,231 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:25,231 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:25,231 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:25,232 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:25,232 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:25,232 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:25,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 44 transitions, 309 flow [2021-04-29 03:44:25,241 INFO L129 PetriNetUnfolder]: 0/83 cut-off events. [2021-04-29 03:44:25,241 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,241 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. [2021-04-29 03:44:25,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 44 transitions, 309 flow [2021-04-29 03:44:25,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 42 transitions, 305 flow [2021-04-29 03:44:25,242 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:25,243 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 42 transitions, 305 flow [2021-04-29 03:44:25,243 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 42 transitions, 305 flow [2021-04-29 03:44:25,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 42 transitions, 305 flow [2021-04-29 03:44:25,250 INFO L129 PetriNetUnfolder]: 0/55 cut-off events. [2021-04-29 03:44:25,250 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,250 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. [2021-04-29 03:44:25,252 INFO L146 LiptonReduction]: Number of co-enabled transitions 1040 [2021-04-29 03:44:25,705 INFO L158 LiptonReduction]: Checked pairs total: 416 [2021-04-29 03:44:25,705 INFO L160 LiptonReduction]: Total number of compositions: 13 [2021-04-29 03:44:25,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 463 [2021-04-29 03:44:25,707 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:25,707 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,707 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:25,708 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:25,708 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:25,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:25,708 INFO L82 PathProgramCache]: Analyzing trace with hash 14371, now seen corresponding path program 1 times [2021-04-29 03:44:25,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:25,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962654740] [2021-04-29 03:44:25,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:25,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:25,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:25,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962654740] [2021-04-29 03:44:25,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:25,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:25,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557353313] [2021-04-29 03:44:25,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:25,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:25,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:25,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:25,722 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 57 [2021-04-29 03:44:25,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 42 transitions, 305 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) [2021-04-29 03:44:25,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:25,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 57 [2021-04-29 03:44:25,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:25,732 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-04-29 03:44:25,732 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 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. [2021-04-29 03:44:25,733 INFO L132 encePairwiseOnDemand]: 55/57 looper letters, 0 selfloop transitions, 1 changer transitions 0/41 dead transitions. [2021-04-29 03:44:25,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 41 transitions, 305 flow [2021-04-29 03:44:25,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 164 transitions. [2021-04-29 03:44:25,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9590643274853801 [2021-04-29 03:44:25,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 164 transitions. [2021-04-29 03:44:25,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 164 transitions. [2021-04-29 03:44:25,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:25,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 164 transitions. [2021-04-29 03:44:25,736 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) [2021-04-29 03:44:25,736 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) [2021-04-29 03:44:25,737 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) [2021-04-29 03:44:25,737 INFO L185 Difference]: Start difference. First operand has 69 places, 42 transitions, 305 flow. Second operand 3 states and 164 transitions. [2021-04-29 03:44:25,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 41 transitions, 305 flow [2021-04-29 03:44:25,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 41 transitions, 149 flow, removed 78 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:25,742 INFO L241 Difference]: Finished difference. Result has 70 places, 41 transitions, 149 flow [2021-04-29 03:44:25,742 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=70, PETRI_TRANSITIONS=41} [2021-04-29 03:44:25,742 INFO L343 CegarLoopForPetriNet]: 69 programPoint places, 1 predicate places. [2021-04-29 03:44:25,742 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:25,742 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 41 transitions, 149 flow [2021-04-29 03:44:25,743 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 41 transitions, 149 flow [2021-04-29 03:44:25,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 41 transitions, 149 flow [2021-04-29 03:44:25,749 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-04-29 03:44:25,750 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 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. [2021-04-29 03:44:25,751 INFO L146 LiptonReduction]: Number of co-enabled transitions 988 [2021-04-29 03:44:25,757 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:25,757 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:25,757 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-04-29 03:44:25,758 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 41 transitions, 149 flow [2021-04-29 03:44:25,759 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) [2021-04-29 03:44:25,759 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:25,759 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:25,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-04-29 03:44:25,759 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:25,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:25,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1451810459, now seen corresponding path program 1 times [2021-04-29 03:44:25,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:25,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131173121] [2021-04-29 03:44:25,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:25,766 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:25,771 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:25,774 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:25,774 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:25,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-04-29 03:44:25,775 WARN L342 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:25,775 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2021-04-29 03:44:25,817 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:25,818 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:25,819 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:25,819 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:25,819 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:25,819 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:25,819 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:25,819 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:25,819 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:25,819 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:25,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 47 transitions, 346 flow [2021-04-29 03:44:25,830 INFO L129 PetriNetUnfolder]: 0/89 cut-off events. [2021-04-29 03:44:25,830 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,830 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. [2021-04-29 03:44:25,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 47 transitions, 346 flow [2021-04-29 03:44:25,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 45 transitions, 342 flow [2021-04-29 03:44:25,831 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:25,832 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 45 transitions, 342 flow [2021-04-29 03:44:25,832 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 45 transitions, 342 flow [2021-04-29 03:44:25,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 45 transitions, 342 flow [2021-04-29 03:44:25,839 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-04-29 03:44:25,839 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:25,839 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. [2021-04-29 03:44:25,841 INFO L146 LiptonReduction]: Number of co-enabled transitions 1204 [2021-04-29 03:44:26,358 INFO L158 LiptonReduction]: Checked pairs total: 483 [2021-04-29 03:44:26,358 INFO L160 LiptonReduction]: Total number of compositions: 14 [2021-04-29 03:44:26,358 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 527 [2021-04-29 03:44:26,360 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:26,360 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:26,361 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:26,361 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:26,361 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:26,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:26,361 INFO L82 PathProgramCache]: Analyzing trace with hash 16291, now seen corresponding path program 1 times [2021-04-29 03:44:26,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:26,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76273901] [2021-04-29 03:44:26,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:26,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:26,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:26,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76273901] [2021-04-29 03:44:26,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:26,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:26,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893580963] [2021-04-29 03:44:26,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:26,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:26,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:26,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:26,373 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 61 [2021-04-29 03:44:26,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 45 transitions, 342 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) [2021-04-29 03:44:26,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:26,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 61 [2021-04-29 03:44:26,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:26,382 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2021-04-29 03:44:26,383 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:26,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 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. [2021-04-29 03:44:26,383 INFO L132 encePairwiseOnDemand]: 59/61 looper letters, 0 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2021-04-29 03:44:26,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 44 transitions, 342 flow [2021-04-29 03:44:26,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:26,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:26,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2021-04-29 03:44:26,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9617486338797814 [2021-04-29 03:44:26,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2021-04-29 03:44:26,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2021-04-29 03:44:26,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:26,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2021-04-29 03:44:26,386 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) [2021-04-29 03:44:26,386 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) [2021-04-29 03:44:26,387 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) [2021-04-29 03:44:26,387 INFO L185 Difference]: Start difference. First operand has 74 places, 45 transitions, 342 flow. Second operand 3 states and 176 transitions. [2021-04-29 03:44:26,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 44 transitions, 342 flow [2021-04-29 03:44:26,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 44 transitions, 160 flow, removed 91 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:26,391 INFO L241 Difference]: Finished difference. Result has 75 places, 44 transitions, 160 flow [2021-04-29 03:44:26,391 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=73, 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=160, PETRI_PLACES=75, PETRI_TRANSITIONS=44} [2021-04-29 03:44:26,392 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 1 predicate places. [2021-04-29 03:44:26,392 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:26,392 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 44 transitions, 160 flow [2021-04-29 03:44:26,392 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 44 transitions, 160 flow [2021-04-29 03:44:26,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 44 transitions, 160 flow [2021-04-29 03:44:26,398 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2021-04-29 03:44:26,398 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:26,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 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. [2021-04-29 03:44:26,400 INFO L146 LiptonReduction]: Number of co-enabled transitions 1148 [2021-04-29 03:44:26,406 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:26,406 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:26,406 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-04-29 03:44:26,407 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 44 transitions, 160 flow [2021-04-29 03:44:26,408 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) [2021-04-29 03:44:26,408 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:26,408 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:26,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-04-29 03:44:26,408 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:26,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:26,409 INFO L82 PathProgramCache]: Analyzing trace with hash -138593667, now seen corresponding path program 1 times [2021-04-29 03:44:26,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:26,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719415936] [2021-04-29 03:44:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:26,415 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:26,419 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:26,422 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:26,422 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:26,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-04-29 03:44:26,422 WARN L342 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:26,423 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2021-04-29 03:44:26,442 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:26,442 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:26,443 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:26,443 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:26,443 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:26,443 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:26,444 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:26,444 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:26,444 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:26,444 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:26,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 50 transitions, 385 flow [2021-04-29 03:44:26,455 INFO L129 PetriNetUnfolder]: 0/95 cut-off events. [2021-04-29 03:44:26,456 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:26,456 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. [2021-04-29 03:44:26,456 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 50 transitions, 385 flow [2021-04-29 03:44:26,457 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 48 transitions, 381 flow [2021-04-29 03:44:26,457 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:26,457 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 48 transitions, 381 flow [2021-04-29 03:44:26,457 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 48 transitions, 381 flow [2021-04-29 03:44:26,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 48 transitions, 381 flow [2021-04-29 03:44:26,466 INFO L129 PetriNetUnfolder]: 0/63 cut-off events. [2021-04-29 03:44:26,467 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:26,467 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. [2021-04-29 03:44:26,469 INFO L146 LiptonReduction]: Number of co-enabled transitions 1380 [2021-04-29 03:44:27,067 INFO L158 LiptonReduction]: Checked pairs total: 555 [2021-04-29 03:44:27,067 INFO L160 LiptonReduction]: Total number of compositions: 15 [2021-04-29 03:44:27,068 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 611 [2021-04-29 03:44:27,070 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:27,070 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:27,070 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:27,070 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:27,070 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:27,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:27,071 INFO L82 PathProgramCache]: Analyzing trace with hash 18339, now seen corresponding path program 1 times [2021-04-29 03:44:27,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:27,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909726175] [2021-04-29 03:44:27,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:27,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:27,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:27,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909726175] [2021-04-29 03:44:27,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:27,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:27,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567131292] [2021-04-29 03:44:27,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:27,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:27,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:27,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:27,102 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 65 [2021-04-29 03:44:27,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 48 transitions, 381 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) [2021-04-29 03:44:27,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:27,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 65 [2021-04-29 03:44:27,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:27,113 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-04-29 03:44:27,114 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:27,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 47 events. 0/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 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. [2021-04-29 03:44:27,114 INFO L132 encePairwiseOnDemand]: 63/65 looper letters, 0 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2021-04-29 03:44:27,115 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 47 transitions, 381 flow [2021-04-29 03:44:27,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:27,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:27,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2021-04-29 03:44:27,116 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9641025641025641 [2021-04-29 03:44:27,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 188 transitions. [2021-04-29 03:44:27,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 188 transitions. [2021-04-29 03:44:27,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:27,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 188 transitions. [2021-04-29 03:44:27,117 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) [2021-04-29 03:44:27,118 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) [2021-04-29 03:44:27,118 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) [2021-04-29 03:44:27,119 INFO L185 Difference]: Start difference. First operand has 79 places, 48 transitions, 381 flow. Second operand 3 states and 188 transitions. [2021-04-29 03:44:27,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 47 transitions, 381 flow [2021-04-29 03:44:27,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 47 transitions, 171 flow, removed 105 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:27,126 INFO L241 Difference]: Finished difference. Result has 80 places, 47 transitions, 171 flow [2021-04-29 03:44:27,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=80, PETRI_TRANSITIONS=47} [2021-04-29 03:44:27,126 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, 1 predicate places. [2021-04-29 03:44:27,127 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:27,127 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 47 transitions, 171 flow [2021-04-29 03:44:27,127 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 47 transitions, 171 flow [2021-04-29 03:44:27,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 47 transitions, 171 flow [2021-04-29 03:44:27,138 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-04-29 03:44:27,138 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:27,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 47 events. 0/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 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. [2021-04-29 03:44:27,140 INFO L146 LiptonReduction]: Number of co-enabled transitions 1320 [2021-04-29 03:44:27,147 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:27,147 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:27,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-29 03:44:27,149 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 47 transitions, 171 flow [2021-04-29 03:44:27,149 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) [2021-04-29 03:44:27,150 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:27,150 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:27,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-04-29 03:44:27,150 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:27,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1465640138, now seen corresponding path program 1 times [2021-04-29 03:44:27,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:27,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209555441] [2021-04-29 03:44:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:27,175 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:27,179 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:27,186 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:27,187 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:27,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-04-29 03:44:27,189 WARN L342 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:27,190 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2021-04-29 03:44:27,221 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:27,221 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:27,223 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:27,223 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:27,223 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:27,223 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:27,224 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:27,224 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:27,224 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:27,224 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:27,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 53 transitions, 426 flow [2021-04-29 03:44:27,244 INFO L129 PetriNetUnfolder]: 0/101 cut-off events. [2021-04-29 03:44:27,244 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:27,244 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. [2021-04-29 03:44:27,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 53 transitions, 426 flow [2021-04-29 03:44:27,245 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 51 transitions, 422 flow [2021-04-29 03:44:27,246 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:27,246 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 51 transitions, 422 flow [2021-04-29 03:44:27,246 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 51 transitions, 422 flow [2021-04-29 03:44:27,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 51 transitions, 422 flow [2021-04-29 03:44:27,256 INFO L129 PetriNetUnfolder]: 0/67 cut-off events. [2021-04-29 03:44:27,257 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:27,257 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. [2021-04-29 03:44:27,260 INFO L146 LiptonReduction]: Number of co-enabled transitions 1568 [2021-04-29 03:44:27,960 INFO L158 LiptonReduction]: Checked pairs total: 632 [2021-04-29 03:44:27,960 INFO L160 LiptonReduction]: Total number of compositions: 16 [2021-04-29 03:44:27,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 714 [2021-04-29 03:44:27,962 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:27,962 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:27,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:27,963 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:27,963 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:27,963 INFO L82 PathProgramCache]: Analyzing trace with hash 20515, now seen corresponding path program 1 times [2021-04-29 03:44:27,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:27,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118475279] [2021-04-29 03:44:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:27,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:27,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:27,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118475279] [2021-04-29 03:44:27,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:27,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:27,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464400453] [2021-04-29 03:44:27,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:27,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:27,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:27,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:27,975 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 69 [2021-04-29 03:44:27,975 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 51 transitions, 422 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) [2021-04-29 03:44:27,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:27,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 69 [2021-04-29 03:44:27,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:27,985 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-04-29 03:44:27,986 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:27,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 50 events. 0/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 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. [2021-04-29 03:44:27,986 INFO L132 encePairwiseOnDemand]: 67/69 looper letters, 0 selfloop transitions, 1 changer transitions 0/50 dead transitions. [2021-04-29 03:44:27,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 50 transitions, 422 flow [2021-04-29 03:44:27,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:27,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:27,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2021-04-29 03:44:27,988 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.966183574879227 [2021-04-29 03:44:27,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2021-04-29 03:44:27,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2021-04-29 03:44:27,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:27,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2021-04-29 03:44:27,989 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) [2021-04-29 03:44:27,990 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) [2021-04-29 03:44:27,990 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) [2021-04-29 03:44:27,990 INFO L185 Difference]: Start difference. First operand has 84 places, 51 transitions, 422 flow. Second operand 3 states and 200 transitions. [2021-04-29 03:44:27,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 50 transitions, 422 flow [2021-04-29 03:44:27,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 50 transitions, 182 flow, removed 120 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:27,995 INFO L241 Difference]: Finished difference. Result has 85 places, 50 transitions, 182 flow [2021-04-29 03:44:27,995 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=83, 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=182, PETRI_PLACES=85, PETRI_TRANSITIONS=50} [2021-04-29 03:44:27,995 INFO L343 CegarLoopForPetriNet]: 84 programPoint places, 1 predicate places. [2021-04-29 03:44:27,996 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:27,996 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 50 transitions, 182 flow [2021-04-29 03:44:27,996 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 50 transitions, 182 flow [2021-04-29 03:44:27,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 50 transitions, 182 flow [2021-04-29 03:44:28,002 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-04-29 03:44:28,003 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:28,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 50 events. 0/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 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. [2021-04-29 03:44:28,004 INFO L146 LiptonReduction]: Number of co-enabled transitions 1504 [2021-04-29 03:44:28,012 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:28,012 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:28,012 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 03:44:28,013 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 50 transitions, 182 flow [2021-04-29 03:44:28,014 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) [2021-04-29 03:44:28,014 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:28,014 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:28,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-04-29 03:44:28,014 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:28,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:28,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1833507392, now seen corresponding path program 1 times [2021-04-29 03:44:28,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:28,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680437039] [2021-04-29 03:44:28,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:28,020 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:28,023 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:28,026 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:28,027 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:28,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-04-29 03:44:28,027 WARN L342 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:28,027 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2021-04-29 03:44:28,048 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:28,049 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:28,049 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:28,049 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:28,050 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:28,050 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:28,050 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:28,050 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:28,050 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:28,050 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:28,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 56 transitions, 469 flow [2021-04-29 03:44:28,064 INFO L129 PetriNetUnfolder]: 0/107 cut-off events. [2021-04-29 03:44:28,064 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:28,064 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. [2021-04-29 03:44:28,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 56 transitions, 469 flow [2021-04-29 03:44:28,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 54 transitions, 465 flow [2021-04-29 03:44:28,065 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:28,065 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 54 transitions, 465 flow [2021-04-29 03:44:28,066 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 54 transitions, 465 flow [2021-04-29 03:44:28,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 54 transitions, 465 flow [2021-04-29 03:44:28,075 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-04-29 03:44:28,076 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:28,076 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. [2021-04-29 03:44:28,078 INFO L146 LiptonReduction]: Number of co-enabled transitions 1768 [2021-04-29 03:44:28,862 INFO L158 LiptonReduction]: Checked pairs total: 714 [2021-04-29 03:44:28,863 INFO L160 LiptonReduction]: Total number of compositions: 17 [2021-04-29 03:44:28,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 798 [2021-04-29 03:44:28,864 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:28,864 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:28,865 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:28,865 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:28,865 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:28,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:28,865 INFO L82 PathProgramCache]: Analyzing trace with hash 22819, now seen corresponding path program 1 times [2021-04-29 03:44:28,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:28,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751747504] [2021-04-29 03:44:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:28,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:28,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:28,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751747504] [2021-04-29 03:44:28,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:28,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:28,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369515105] [2021-04-29 03:44:28,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:28,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:28,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:28,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:28,878 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 73 [2021-04-29 03:44:28,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 54 transitions, 465 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) [2021-04-29 03:44:28,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:28,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 73 [2021-04-29 03:44:28,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:28,890 INFO L129 PetriNetUnfolder]: 0/53 cut-off events. [2021-04-29 03:44:28,890 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:28,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 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. [2021-04-29 03:44:28,891 INFO L132 encePairwiseOnDemand]: 71/73 looper letters, 0 selfloop transitions, 1 changer transitions 0/53 dead transitions. [2021-04-29 03:44:28,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 53 transitions, 465 flow [2021-04-29 03:44:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:28,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2021-04-29 03:44:28,892 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9680365296803652 [2021-04-29 03:44:28,892 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 212 transitions. [2021-04-29 03:44:28,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 212 transitions. [2021-04-29 03:44:28,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:28,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 212 transitions. [2021-04-29 03:44:28,893 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) [2021-04-29 03:44:28,894 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) [2021-04-29 03:44:28,894 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) [2021-04-29 03:44:28,894 INFO L185 Difference]: Start difference. First operand has 89 places, 54 transitions, 465 flow. Second operand 3 states and 212 transitions. [2021-04-29 03:44:28,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 53 transitions, 465 flow [2021-04-29 03:44:28,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 53 transitions, 193 flow, removed 136 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:28,899 INFO L241 Difference]: Finished difference. Result has 90 places, 53 transitions, 193 flow [2021-04-29 03:44:28,900 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=90, PETRI_TRANSITIONS=53} [2021-04-29 03:44:28,900 INFO L343 CegarLoopForPetriNet]: 89 programPoint places, 1 predicate places. [2021-04-29 03:44:28,900 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:28,900 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 53 transitions, 193 flow [2021-04-29 03:44:28,900 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 53 transitions, 193 flow [2021-04-29 03:44:28,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 53 transitions, 193 flow [2021-04-29 03:44:28,908 INFO L129 PetriNetUnfolder]: 0/53 cut-off events. [2021-04-29 03:44:28,908 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:28,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 124 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. [2021-04-29 03:44:28,910 INFO L146 LiptonReduction]: Number of co-enabled transitions 1700 [2021-04-29 03:44:28,918 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:28,918 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:28,918 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-04-29 03:44:28,919 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 53 transitions, 193 flow [2021-04-29 03:44:28,919 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) [2021-04-29 03:44:28,920 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:28,920 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:28,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-04-29 03:44:28,920 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:28,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:28,920 INFO L82 PathProgramCache]: Analyzing trace with hash 825672673, now seen corresponding path program 1 times [2021-04-29 03:44:28,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:28,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339099646] [2021-04-29 03:44:28,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:28,926 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:28,928 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:28,932 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:28,932 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:28,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-04-29 03:44:28,932 WARN L342 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:28,933 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2021-04-29 03:44:28,955 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:28,956 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:28,956 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:28,957 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:28,957 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:28,957 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:28,957 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:28,957 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:28,957 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:28,957 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:28,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 59 transitions, 514 flow [2021-04-29 03:44:28,972 INFO L129 PetriNetUnfolder]: 0/113 cut-off events. [2021-04-29 03:44:28,973 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:28,973 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. [2021-04-29 03:44:28,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 59 transitions, 514 flow [2021-04-29 03:44:28,974 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 57 transitions, 510 flow [2021-04-29 03:44:28,974 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:28,975 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 57 transitions, 510 flow [2021-04-29 03:44:28,975 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 57 transitions, 510 flow [2021-04-29 03:44:28,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 57 transitions, 510 flow [2021-04-29 03:44:28,986 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-04-29 03:44:28,986 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:28,986 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. [2021-04-29 03:44:28,989 INFO L146 LiptonReduction]: Number of co-enabled transitions 1980 [2021-04-29 03:44:29,766 INFO L158 LiptonReduction]: Checked pairs total: 801 [2021-04-29 03:44:29,767 INFO L160 LiptonReduction]: Total number of compositions: 18 [2021-04-29 03:44:29,767 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 793 [2021-04-29 03:44:29,769 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:29,769 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:29,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:29,769 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:29,769 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:29,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:29,770 INFO L82 PathProgramCache]: Analyzing trace with hash 25251, now seen corresponding path program 1 times [2021-04-29 03:44:29,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:29,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413990374] [2021-04-29 03:44:29,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:29,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:29,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:29,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413990374] [2021-04-29 03:44:29,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:29,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:29,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784415934] [2021-04-29 03:44:29,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:29,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:29,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:29,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:29,781 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 77 [2021-04-29 03:44:29,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 57 transitions, 510 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) [2021-04-29 03:44:29,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:29,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 77 [2021-04-29 03:44:29,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:29,797 INFO L129 PetriNetUnfolder]: 0/56 cut-off events. [2021-04-29 03:44:29,797 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:29,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 56 events. 0/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 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. [2021-04-29 03:44:29,798 INFO L132 encePairwiseOnDemand]: 75/77 looper letters, 0 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2021-04-29 03:44:29,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 56 transitions, 510 flow [2021-04-29 03:44:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:29,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2021-04-29 03:44:29,799 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9696969696969697 [2021-04-29 03:44:29,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2021-04-29 03:44:29,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2021-04-29 03:44:29,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:29,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2021-04-29 03:44:29,801 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) [2021-04-29 03:44:29,802 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) [2021-04-29 03:44:29,803 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) [2021-04-29 03:44:29,803 INFO L185 Difference]: Start difference. First operand has 94 places, 57 transitions, 510 flow. Second operand 3 states and 224 transitions. [2021-04-29 03:44:29,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 56 transitions, 510 flow [2021-04-29 03:44:29,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 56 transitions, 204 flow, removed 153 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:29,809 INFO L241 Difference]: Finished difference. Result has 95 places, 56 transitions, 204 flow [2021-04-29 03:44:29,809 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=93, 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=204, PETRI_PLACES=95, PETRI_TRANSITIONS=56} [2021-04-29 03:44:29,810 INFO L343 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2021-04-29 03:44:29,810 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:29,810 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 56 transitions, 204 flow [2021-04-29 03:44:29,810 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 56 transitions, 204 flow [2021-04-29 03:44:29,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 56 transitions, 204 flow [2021-04-29 03:44:29,819 INFO L129 PetriNetUnfolder]: 0/56 cut-off events. [2021-04-29 03:44:29,820 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:29,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 56 events. 0/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 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. [2021-04-29 03:44:29,822 INFO L146 LiptonReduction]: Number of co-enabled transitions 1908 [2021-04-29 03:44:29,826 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:29,827 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:29,827 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-04-29 03:44:29,828 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 56 transitions, 204 flow [2021-04-29 03:44:29,829 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) [2021-04-29 03:44:29,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:29,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:29,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-04-29 03:44:29,829 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:29,830 INFO L82 PathProgramCache]: Analyzing trace with hash 334217731, now seen corresponding path program 1 times [2021-04-29 03:44:29,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:29,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920907500] [2021-04-29 03:44:29,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:29,836 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:29,839 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:29,843 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:29,843 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:29,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-04-29 03:44:29,843 WARN L342 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:29,844 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2021-04-29 03:44:29,919 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:29,919 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:29,920 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:29,920 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:29,921 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:29,921 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:29,921 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:29,921 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:29,921 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:29,921 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:29,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 62 transitions, 561 flow [2021-04-29 03:44:29,938 INFO L129 PetriNetUnfolder]: 0/119 cut-off events. [2021-04-29 03:44:29,938 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:29,938 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. [2021-04-29 03:44:29,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 62 transitions, 561 flow [2021-04-29 03:44:29,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 60 transitions, 557 flow [2021-04-29 03:44:29,940 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:29,940 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 60 transitions, 557 flow [2021-04-29 03:44:29,940 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 60 transitions, 557 flow [2021-04-29 03:44:29,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 60 transitions, 557 flow [2021-04-29 03:44:29,952 INFO L129 PetriNetUnfolder]: 0/79 cut-off events. [2021-04-29 03:44:29,953 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:29,953 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. [2021-04-29 03:44:29,956 INFO L146 LiptonReduction]: Number of co-enabled transitions 2204 [2021-04-29 03:44:30,840 INFO L158 LiptonReduction]: Checked pairs total: 893 [2021-04-29 03:44:30,840 INFO L160 LiptonReduction]: Total number of compositions: 19 [2021-04-29 03:44:30,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 900 [2021-04-29 03:44:30,849 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:30,849 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:30,849 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:30,849 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:30,849 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:30,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:30,850 INFO L82 PathProgramCache]: Analyzing trace with hash 27811, now seen corresponding path program 1 times [2021-04-29 03:44:30,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:30,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321937689] [2021-04-29 03:44:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:30,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:30,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:30,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321937689] [2021-04-29 03:44:30,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:30,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:30,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873530988] [2021-04-29 03:44:30,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:30,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:30,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:30,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:30,864 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 81 [2021-04-29 03:44:30,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 60 transitions, 557 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) [2021-04-29 03:44:30,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:30,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 81 [2021-04-29 03:44:30,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:30,877 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-04-29 03:44:30,877 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:30,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 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. [2021-04-29 03:44:30,878 INFO L132 encePairwiseOnDemand]: 79/81 looper letters, 0 selfloop transitions, 1 changer transitions 0/59 dead transitions. [2021-04-29 03:44:30,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 59 transitions, 557 flow [2021-04-29 03:44:30,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:30,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2021-04-29 03:44:30,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9711934156378601 [2021-04-29 03:44:30,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 236 transitions. [2021-04-29 03:44:30,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 236 transitions. [2021-04-29 03:44:30,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:30,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 236 transitions. [2021-04-29 03:44:30,881 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) [2021-04-29 03:44:30,881 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) [2021-04-29 03:44:30,882 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) [2021-04-29 03:44:30,882 INFO L185 Difference]: Start difference. First operand has 99 places, 60 transitions, 557 flow. Second operand 3 states and 236 transitions. [2021-04-29 03:44:30,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 59 transitions, 557 flow [2021-04-29 03:44:30,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 59 transitions, 215 flow, removed 171 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:30,889 INFO L241 Difference]: Finished difference. Result has 100 places, 59 transitions, 215 flow [2021-04-29 03:44:30,889 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=100, PETRI_TRANSITIONS=59} [2021-04-29 03:44:30,889 INFO L343 CegarLoopForPetriNet]: 99 programPoint places, 1 predicate places. [2021-04-29 03:44:30,889 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:30,890 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 59 transitions, 215 flow [2021-04-29 03:44:30,890 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 59 transitions, 215 flow [2021-04-29 03:44:30,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 59 transitions, 215 flow [2021-04-29 03:44:30,898 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-04-29 03:44:30,899 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:30,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 131 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. [2021-04-29 03:44:30,901 INFO L146 LiptonReduction]: Number of co-enabled transitions 2128 [2021-04-29 03:44:30,905 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:30,905 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:30,905 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 03:44:30,906 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 59 transitions, 215 flow [2021-04-29 03:44:30,906 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) [2021-04-29 03:44:30,907 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:30,907 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] [2021-04-29 03:44:30,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-04-29 03:44:30,907 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:30,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:30,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1359261028, now seen corresponding path program 1 times [2021-04-29 03:44:30,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:30,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857194719] [2021-04-29 03:44:30,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:30,916 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:30,922 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:30,932 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:30,932 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:30,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-04-29 03:44:30,932 WARN L342 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:30,933 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2021-04-29 03:44:30,961 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:30,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:30,962 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:30,962 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:30,962 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:30,962 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:30,963 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:30,963 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:30,963 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:30,963 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:30,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 65 transitions, 610 flow [2021-04-29 03:44:30,980 INFO L129 PetriNetUnfolder]: 0/125 cut-off events. [2021-04-29 03:44:30,980 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:30,980 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. [2021-04-29 03:44:30,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 65 transitions, 610 flow [2021-04-29 03:44:30,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 63 transitions, 606 flow [2021-04-29 03:44:30,983 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:30,983 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 63 transitions, 606 flow [2021-04-29 03:44:30,983 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 63 transitions, 606 flow [2021-04-29 03:44:30,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 63 transitions, 606 flow [2021-04-29 03:44:30,995 INFO L129 PetriNetUnfolder]: 0/83 cut-off events. [2021-04-29 03:44:30,995 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:30,995 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. [2021-04-29 03:44:30,999 INFO L146 LiptonReduction]: Number of co-enabled transitions 2440 [2021-04-29 03:44:32,091 INFO L158 LiptonReduction]: Checked pairs total: 990 [2021-04-29 03:44:32,091 INFO L160 LiptonReduction]: Total number of compositions: 20 [2021-04-29 03:44:32,091 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1108 [2021-04-29 03:44:32,093 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:32,093 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:32,093 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:32,094 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:32,094 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:32,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:32,094 INFO L82 PathProgramCache]: Analyzing trace with hash 30499, now seen corresponding path program 1 times [2021-04-29 03:44:32,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:32,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709895519] [2021-04-29 03:44:32,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:32,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:32,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:32,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709895519] [2021-04-29 03:44:32,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:32,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:32,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869525297] [2021-04-29 03:44:32,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:32,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:32,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:32,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:32,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 85 [2021-04-29 03:44:32,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 63 transitions, 606 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) [2021-04-29 03:44:32,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:32,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 85 [2021-04-29 03:44:32,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:32,119 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-29 03:44:32,120 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:32,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 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. [2021-04-29 03:44:32,120 INFO L132 encePairwiseOnDemand]: 83/85 looper letters, 0 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2021-04-29 03:44:32,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 62 transitions, 606 flow [2021-04-29 03:44:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:32,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2021-04-29 03:44:32,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9725490196078431 [2021-04-29 03:44:32,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2021-04-29 03:44:32,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2021-04-29 03:44:32,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:32,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2021-04-29 03:44:32,123 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) [2021-04-29 03:44:32,124 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) [2021-04-29 03:44:32,124 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) [2021-04-29 03:44:32,125 INFO L185 Difference]: Start difference. First operand has 104 places, 63 transitions, 606 flow. Second operand 3 states and 248 transitions. [2021-04-29 03:44:32,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 62 transitions, 606 flow [2021-04-29 03:44:32,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 62 transitions, 226 flow, removed 190 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:32,134 INFO L241 Difference]: Finished difference. Result has 105 places, 62 transitions, 226 flow [2021-04-29 03:44:32,134 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=103, 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=226, PETRI_PLACES=105, PETRI_TRANSITIONS=62} [2021-04-29 03:44:32,134 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2021-04-29 03:44:32,134 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:32,134 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 62 transitions, 226 flow [2021-04-29 03:44:32,135 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 62 transitions, 226 flow [2021-04-29 03:44:32,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 62 transitions, 226 flow [2021-04-29 03:44:32,144 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-29 03:44:32,144 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:32,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 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. [2021-04-29 03:44:32,147 INFO L146 LiptonReduction]: Number of co-enabled transitions 2360 [2021-04-29 03:44:32,151 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:32,152 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:32,152 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-04-29 03:44:32,153 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 62 transitions, 226 flow [2021-04-29 03:44:32,153 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) [2021-04-29 03:44:32,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:32,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:44:32,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-04-29 03:44:32,154 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:32,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:32,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1298741190, now seen corresponding path program 1 times [2021-04-29 03:44:32,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:32,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809810149] [2021-04-29 03:44:32,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:32,160 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:32,162 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:32,166 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:32,167 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:32,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-04-29 03:44:32,167 WARN L342 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:32,167 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2021-04-29 03:44:32,200 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:32,200 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:32,201 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:32,201 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:32,201 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:32,201 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:32,201 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:32,201 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:32,201 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:32,202 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:32,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 68 transitions, 661 flow [2021-04-29 03:44:32,219 INFO L129 PetriNetUnfolder]: 0/131 cut-off events. [2021-04-29 03:44:32,220 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:32,220 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. [2021-04-29 03:44:32,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 68 transitions, 661 flow [2021-04-29 03:44:32,221 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 66 transitions, 657 flow [2021-04-29 03:44:32,221 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:32,222 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 66 transitions, 657 flow [2021-04-29 03:44:32,222 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 66 transitions, 657 flow [2021-04-29 03:44:32,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 66 transitions, 657 flow [2021-04-29 03:44:32,235 INFO L129 PetriNetUnfolder]: 0/87 cut-off events. [2021-04-29 03:44:32,235 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:32,235 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. [2021-04-29 03:44:32,239 INFO L146 LiptonReduction]: Number of co-enabled transitions 2688 [2021-04-29 03:44:33,503 INFO L158 LiptonReduction]: Checked pairs total: 1092 [2021-04-29 03:44:33,503 INFO L160 LiptonReduction]: Total number of compositions: 21 [2021-04-29 03:44:33,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1283 [2021-04-29 03:44:33,511 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:33,512 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:33,512 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:33,512 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:33,512 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:33,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:33,512 INFO L82 PathProgramCache]: Analyzing trace with hash 33315, now seen corresponding path program 1 times [2021-04-29 03:44:33,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:33,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800167131] [2021-04-29 03:44:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:33,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:33,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:33,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800167131] [2021-04-29 03:44:33,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:33,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:33,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114898839] [2021-04-29 03:44:33,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:33,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:33,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:33,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:33,526 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 89 [2021-04-29 03:44:33,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 66 transitions, 657 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) [2021-04-29 03:44:33,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:33,527 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 89 [2021-04-29 03:44:33,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:33,545 INFO L129 PetriNetUnfolder]: 0/65 cut-off events. [2021-04-29 03:44:33,545 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:33,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 65 events. 0/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 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. [2021-04-29 03:44:33,546 INFO L132 encePairwiseOnDemand]: 87/89 looper letters, 0 selfloop transitions, 1 changer transitions 0/65 dead transitions. [2021-04-29 03:44:33,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 65 transitions, 657 flow [2021-04-29 03:44:33,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:33,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:33,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2021-04-29 03:44:33,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9737827715355806 [2021-04-29 03:44:33,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2021-04-29 03:44:33,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2021-04-29 03:44:33,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:33,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2021-04-29 03:44:33,550 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) [2021-04-29 03:44:33,558 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) [2021-04-29 03:44:33,560 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) [2021-04-29 03:44:33,560 INFO L185 Difference]: Start difference. First operand has 109 places, 66 transitions, 657 flow. Second operand 3 states and 260 transitions. [2021-04-29 03:44:33,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 65 transitions, 657 flow [2021-04-29 03:44:33,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 65 transitions, 237 flow, removed 210 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:33,570 INFO L241 Difference]: Finished difference. Result has 110 places, 65 transitions, 237 flow [2021-04-29 03:44:33,571 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=110, PETRI_TRANSITIONS=65} [2021-04-29 03:44:33,571 INFO L343 CegarLoopForPetriNet]: 109 programPoint places, 1 predicate places. [2021-04-29 03:44:33,571 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:33,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 65 transitions, 237 flow [2021-04-29 03:44:33,572 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 65 transitions, 237 flow [2021-04-29 03:44:33,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 65 transitions, 237 flow [2021-04-29 03:44:33,583 INFO L129 PetriNetUnfolder]: 0/65 cut-off events. [2021-04-29 03:44:33,583 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:33,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 65 events. 0/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 143 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. [2021-04-29 03:44:33,586 INFO L146 LiptonReduction]: Number of co-enabled transitions 2604 [2021-04-29 03:44:33,592 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:33,592 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:33,592 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-29 03:44:33,593 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 65 transitions, 237 flow [2021-04-29 03:44:33,594 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) [2021-04-29 03:44:33,594 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:33,594 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] [2021-04-29 03:44:33,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-04-29 03:44:33,595 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:33,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:33,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1084276377, now seen corresponding path program 1 times [2021-04-29 03:44:33,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:33,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795386933] [2021-04-29 03:44:33,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:33,616 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:33,619 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:33,633 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:33,634 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:33,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-04-29 03:44:33,634 WARN L342 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:33,634 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2021-04-29 03:44:33,664 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:33,665 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:33,666 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:33,666 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:33,666 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:33,666 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:33,666 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:33,666 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:33,666 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:33,667 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:33,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 71 transitions, 714 flow [2021-04-29 03:44:33,689 INFO L129 PetriNetUnfolder]: 0/137 cut-off events. [2021-04-29 03:44:33,689 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:33,690 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. [2021-04-29 03:44:33,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 71 transitions, 714 flow [2021-04-29 03:44:33,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 69 transitions, 710 flow [2021-04-29 03:44:33,691 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:33,692 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 69 transitions, 710 flow [2021-04-29 03:44:33,692 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 69 transitions, 710 flow [2021-04-29 03:44:33,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 69 transitions, 710 flow [2021-04-29 03:44:33,707 INFO L129 PetriNetUnfolder]: 0/91 cut-off events. [2021-04-29 03:44:33,707 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:33,707 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. [2021-04-29 03:44:33,711 INFO L146 LiptonReduction]: Number of co-enabled transitions 2948 [2021-04-29 03:44:34,907 INFO L158 LiptonReduction]: Checked pairs total: 1199 [2021-04-29 03:44:34,907 INFO L160 LiptonReduction]: Total number of compositions: 22 [2021-04-29 03:44:34,907 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1216 [2021-04-29 03:44:34,909 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:34,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:34,910 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:34,910 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:34,910 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:34,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:34,910 INFO L82 PathProgramCache]: Analyzing trace with hash 36259, now seen corresponding path program 1 times [2021-04-29 03:44:34,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:34,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105238436] [2021-04-29 03:44:34,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:34,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:34,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:34,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105238436] [2021-04-29 03:44:34,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:34,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:34,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889193896] [2021-04-29 03:44:34,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:34,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:34,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:34,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:34,922 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 93 [2021-04-29 03:44:34,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 69 transitions, 710 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) [2021-04-29 03:44:34,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:34,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 93 [2021-04-29 03:44:34,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:34,937 INFO L129 PetriNetUnfolder]: 0/68 cut-off events. [2021-04-29 03:44:34,938 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:34,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 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. [2021-04-29 03:44:34,938 INFO L132 encePairwiseOnDemand]: 91/93 looper letters, 0 selfloop transitions, 1 changer transitions 0/68 dead transitions. [2021-04-29 03:44:34,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 68 transitions, 710 flow [2021-04-29 03:44:34,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:34,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2021-04-29 03:44:34,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.974910394265233 [2021-04-29 03:44:34,940 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2021-04-29 03:44:34,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2021-04-29 03:44:34,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:34,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2021-04-29 03:44:34,941 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) [2021-04-29 03:44:34,942 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) [2021-04-29 03:44:34,942 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) [2021-04-29 03:44:34,942 INFO L185 Difference]: Start difference. First operand has 114 places, 69 transitions, 710 flow. Second operand 3 states and 272 transitions. [2021-04-29 03:44:34,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 68 transitions, 710 flow [2021-04-29 03:44:34,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 68 transitions, 248 flow, removed 231 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:34,953 INFO L241 Difference]: Finished difference. Result has 115 places, 68 transitions, 248 flow [2021-04-29 03:44:34,953 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=113, 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=248, PETRI_PLACES=115, PETRI_TRANSITIONS=68} [2021-04-29 03:44:34,953 INFO L343 CegarLoopForPetriNet]: 114 programPoint places, 1 predicate places. [2021-04-29 03:44:34,953 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:34,954 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 68 transitions, 248 flow [2021-04-29 03:44:34,954 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 68 transitions, 248 flow [2021-04-29 03:44:34,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 115 places, 68 transitions, 248 flow [2021-04-29 03:44:34,963 INFO L129 PetriNetUnfolder]: 0/68 cut-off events. [2021-04-29 03:44:34,963 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:34,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 143 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. [2021-04-29 03:44:34,966 INFO L146 LiptonReduction]: Number of co-enabled transitions 2860 [2021-04-29 03:44:34,971 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:34,971 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:34,971 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-04-29 03:44:34,972 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 68 transitions, 248 flow [2021-04-29 03:44:34,973 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) [2021-04-29 03:44:34,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:34,973 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] [2021-04-29 03:44:34,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-04-29 03:44:34,973 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:34,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:34,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1905098359, now seen corresponding path program 1 times [2021-04-29 03:44:34,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:34,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198362574] [2021-04-29 03:44:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:34,979 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:34,981 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:34,986 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:34,986 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:34,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-04-29 03:44:34,986 WARN L342 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:34,987 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2021-04-29 03:44:35,014 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:35,015 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:35,015 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:35,016 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:35,016 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:35,016 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:35,016 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:35,016 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:35,016 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:35,016 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:35,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 74 transitions, 769 flow [2021-04-29 03:44:35,037 INFO L129 PetriNetUnfolder]: 0/143 cut-off events. [2021-04-29 03:44:35,037 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:35,038 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. [2021-04-29 03:44:35,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 74 transitions, 769 flow [2021-04-29 03:44:35,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 72 transitions, 765 flow [2021-04-29 03:44:35,039 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:35,040 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 72 transitions, 765 flow [2021-04-29 03:44:35,040 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 72 transitions, 765 flow [2021-04-29 03:44:35,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 72 transitions, 765 flow [2021-04-29 03:44:35,054 INFO L129 PetriNetUnfolder]: 0/95 cut-off events. [2021-04-29 03:44:35,055 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:35,055 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. [2021-04-29 03:44:35,060 INFO L146 LiptonReduction]: Number of co-enabled transitions 3220 [2021-04-29 03:44:36,343 INFO L158 LiptonReduction]: Checked pairs total: 1311 [2021-04-29 03:44:36,343 INFO L160 LiptonReduction]: Total number of compositions: 23 [2021-04-29 03:44:36,343 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1304 [2021-04-29 03:44:36,345 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:36,345 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:36,345 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:36,346 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:36,346 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:36,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:36,346 INFO L82 PathProgramCache]: Analyzing trace with hash 39331, now seen corresponding path program 1 times [2021-04-29 03:44:36,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:36,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901322712] [2021-04-29 03:44:36,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:36,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:36,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:36,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:36,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901322712] [2021-04-29 03:44:36,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:36,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:36,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198241713] [2021-04-29 03:44:36,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:36,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:36,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:36,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:36,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 97 [2021-04-29 03:44:36,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 72 transitions, 765 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) [2021-04-29 03:44:36,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:36,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 97 [2021-04-29 03:44:36,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:36,375 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-04-29 03:44:36,375 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:36,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 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. [2021-04-29 03:44:36,376 INFO L132 encePairwiseOnDemand]: 95/97 looper letters, 0 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2021-04-29 03:44:36,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 71 transitions, 765 flow [2021-04-29 03:44:36,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:36,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2021-04-29 03:44:36,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9759450171821306 [2021-04-29 03:44:36,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2021-04-29 03:44:36,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2021-04-29 03:44:36,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:36,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2021-04-29 03:44:36,379 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) [2021-04-29 03:44:36,379 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) [2021-04-29 03:44:36,380 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) [2021-04-29 03:44:36,380 INFO L185 Difference]: Start difference. First operand has 119 places, 72 transitions, 765 flow. Second operand 3 states and 284 transitions. [2021-04-29 03:44:36,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 71 transitions, 765 flow [2021-04-29 03:44:36,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 71 transitions, 259 flow, removed 253 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:36,390 INFO L241 Difference]: Finished difference. Result has 120 places, 71 transitions, 259 flow [2021-04-29 03:44:36,390 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=120, PETRI_TRANSITIONS=71} [2021-04-29 03:44:36,390 INFO L343 CegarLoopForPetriNet]: 119 programPoint places, 1 predicate places. [2021-04-29 03:44:36,391 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:36,391 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 71 transitions, 259 flow [2021-04-29 03:44:36,391 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 71 transitions, 259 flow [2021-04-29 03:44:36,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 71 transitions, 259 flow [2021-04-29 03:44:36,401 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-04-29 03:44:36,401 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:36,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 146 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. [2021-04-29 03:44:36,404 INFO L146 LiptonReduction]: Number of co-enabled transitions 3128 [2021-04-29 03:44:36,409 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:36,409 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:36,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-04-29 03:44:36,410 INFO L480 AbstractCegarLoop]: Abstraction has has 120 places, 71 transitions, 259 flow [2021-04-29 03:44:36,410 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) [2021-04-29 03:44:36,411 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:36,411 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] [2021-04-29 03:44:36,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-04-29 03:44:36,411 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:36,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:36,411 INFO L82 PathProgramCache]: Analyzing trace with hash -113046974, now seen corresponding path program 1 times [2021-04-29 03:44:36,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:36,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100481329] [2021-04-29 03:44:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:36,417 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:36,419 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:36,424 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:36,424 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:36,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-04-29 03:44:36,424 WARN L342 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:36,424 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2021-04-29 03:44:36,452 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:36,453 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:36,454 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:36,454 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:36,454 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:36,454 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:36,454 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:36,454 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:36,454 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:36,454 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:36,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 77 transitions, 826 flow [2021-04-29 03:44:36,525 INFO L129 PetriNetUnfolder]: 0/149 cut-off events. [2021-04-29 03:44:36,526 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:36,526 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. [2021-04-29 03:44:36,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 77 transitions, 826 flow [2021-04-29 03:44:36,529 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 75 transitions, 822 flow [2021-04-29 03:44:36,530 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:36,530 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 75 transitions, 822 flow [2021-04-29 03:44:36,530 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 75 transitions, 822 flow [2021-04-29 03:44:36,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 75 transitions, 822 flow [2021-04-29 03:44:36,545 INFO L129 PetriNetUnfolder]: 0/99 cut-off events. [2021-04-29 03:44:36,545 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:36,545 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. [2021-04-29 03:44:36,550 INFO L146 LiptonReduction]: Number of co-enabled transitions 3504 [2021-04-29 03:44:37,868 INFO L158 LiptonReduction]: Checked pairs total: 1428 [2021-04-29 03:44:37,869 INFO L160 LiptonReduction]: Total number of compositions: 24 [2021-04-29 03:44:37,869 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1339 [2021-04-29 03:44:37,871 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:37,871 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:37,871 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:37,871 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:37,871 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:37,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:37,871 INFO L82 PathProgramCache]: Analyzing trace with hash 42531, now seen corresponding path program 1 times [2021-04-29 03:44:37,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:37,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600502959] [2021-04-29 03:44:37,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:37,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:37,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:37,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:37,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600502959] [2021-04-29 03:44:37,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:37,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:37,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176550594] [2021-04-29 03:44:37,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:37,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:37,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:37,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:37,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 101 [2021-04-29 03:44:37,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 75 transitions, 822 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) [2021-04-29 03:44:37,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:37,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 101 [2021-04-29 03:44:37,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:37,901 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2021-04-29 03:44:37,901 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:37,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 74 events. 0/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 156 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. [2021-04-29 03:44:37,902 INFO L132 encePairwiseOnDemand]: 99/101 looper letters, 0 selfloop transitions, 1 changer transitions 0/74 dead transitions. [2021-04-29 03:44:37,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 74 transitions, 822 flow [2021-04-29 03:44:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:37,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:37,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-04-29 03:44:37,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.976897689768977 [2021-04-29 03:44:37,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-04-29 03:44:37,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-04-29 03:44:37,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:37,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-04-29 03:44:37,905 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) [2021-04-29 03:44:37,906 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) [2021-04-29 03:44:37,907 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) [2021-04-29 03:44:37,907 INFO L185 Difference]: Start difference. First operand has 124 places, 75 transitions, 822 flow. Second operand 3 states and 296 transitions. [2021-04-29 03:44:37,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 74 transitions, 822 flow [2021-04-29 03:44:37,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 74 transitions, 270 flow, removed 276 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:37,919 INFO L241 Difference]: Finished difference. Result has 125 places, 74 transitions, 270 flow [2021-04-29 03:44:37,919 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=123, 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=270, PETRI_PLACES=125, PETRI_TRANSITIONS=74} [2021-04-29 03:44:37,919 INFO L343 CegarLoopForPetriNet]: 124 programPoint places, 1 predicate places. [2021-04-29 03:44:37,919 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:37,919 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 74 transitions, 270 flow [2021-04-29 03:44:37,920 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 74 transitions, 270 flow [2021-04-29 03:44:37,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 74 transitions, 270 flow [2021-04-29 03:44:37,931 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2021-04-29 03:44:37,931 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:37,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 74 events. 0/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 154 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. [2021-04-29 03:44:37,933 INFO L146 LiptonReduction]: Number of co-enabled transitions 3408 [2021-04-29 03:44:37,940 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:37,941 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:37,941 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 03:44:37,942 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 74 transitions, 270 flow [2021-04-29 03:44:37,942 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) [2021-04-29 03:44:37,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:37,943 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] [2021-04-29 03:44:37,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-04-29 03:44:37,943 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:37,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:37,943 INFO L82 PathProgramCache]: Analyzing trace with hash -2014993076, now seen corresponding path program 1 times [2021-04-29 03:44:37,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:37,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666839062] [2021-04-29 03:44:37,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:37,949 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:37,952 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:37,956 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:37,956 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:37,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-04-29 03:44:37,957 WARN L342 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:37,957 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2021-04-29 03:44:37,989 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:37,990 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:37,991 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:37,991 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:37,991 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:37,991 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:37,991 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:37,992 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:37,992 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:37,992 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:37,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 131 places, 80 transitions, 885 flow [2021-04-29 03:44:38,018 INFO L129 PetriNetUnfolder]: 0/155 cut-off events. [2021-04-29 03:44:38,019 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:38,019 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. [2021-04-29 03:44:38,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 80 transitions, 885 flow [2021-04-29 03:44:38,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 78 transitions, 881 flow [2021-04-29 03:44:38,021 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:38,022 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 78 transitions, 881 flow [2021-04-29 03:44:38,022 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 78 transitions, 881 flow [2021-04-29 03:44:38,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 78 transitions, 881 flow [2021-04-29 03:44:38,042 INFO L129 PetriNetUnfolder]: 0/103 cut-off events. [2021-04-29 03:44:38,042 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:38,042 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. [2021-04-29 03:44:38,049 INFO L146 LiptonReduction]: Number of co-enabled transitions 3800 [2021-04-29 03:44:38,326 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-04-29 03:44:39,604 INFO L158 LiptonReduction]: Checked pairs total: 1550 [2021-04-29 03:44:39,604 INFO L160 LiptonReduction]: Total number of compositions: 25 [2021-04-29 03:44:39,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1583 [2021-04-29 03:44:39,606 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:39,606 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:39,606 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:39,606 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:39,606 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:39,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:39,607 INFO L82 PathProgramCache]: Analyzing trace with hash 45859, now seen corresponding path program 1 times [2021-04-29 03:44:39,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:39,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439360233] [2021-04-29 03:44:39,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:39,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:39,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:39,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439360233] [2021-04-29 03:44:39,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:39,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:39,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817536159] [2021-04-29 03:44:39,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:39,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:39,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:39,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:39,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 105 [2021-04-29 03:44:39,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 78 transitions, 881 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) [2021-04-29 03:44:39,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:39,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 105 [2021-04-29 03:44:39,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:39,637 INFO L129 PetriNetUnfolder]: 0/77 cut-off events. [2021-04-29 03:44:39,637 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:39,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 77 events. 0/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 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. [2021-04-29 03:44:39,638 INFO L132 encePairwiseOnDemand]: 103/105 looper letters, 0 selfloop transitions, 1 changer transitions 0/77 dead transitions. [2021-04-29 03:44:39,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 77 transitions, 881 flow [2021-04-29 03:44:39,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:39,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:39,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2021-04-29 03:44:39,640 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9777777777777777 [2021-04-29 03:44:39,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2021-04-29 03:44:39,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2021-04-29 03:44:39,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:39,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2021-04-29 03:44:39,642 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) [2021-04-29 03:44:39,643 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) [2021-04-29 03:44:39,643 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) [2021-04-29 03:44:39,643 INFO L185 Difference]: Start difference. First operand has 129 places, 78 transitions, 881 flow. Second operand 3 states and 308 transitions. [2021-04-29 03:44:39,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 77 transitions, 881 flow [2021-04-29 03:44:39,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 77 transitions, 281 flow, removed 300 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:39,657 INFO L241 Difference]: Finished difference. Result has 130 places, 77 transitions, 281 flow [2021-04-29 03:44:39,657 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=130, PETRI_TRANSITIONS=77} [2021-04-29 03:44:39,657 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, 1 predicate places. [2021-04-29 03:44:39,658 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:39,658 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 77 transitions, 281 flow [2021-04-29 03:44:39,658 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 77 transitions, 281 flow [2021-04-29 03:44:39,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 77 transitions, 281 flow [2021-04-29 03:44:39,669 INFO L129 PetriNetUnfolder]: 0/77 cut-off events. [2021-04-29 03:44:39,670 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:39,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 77 events. 0/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 143 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. [2021-04-29 03:44:39,672 INFO L146 LiptonReduction]: Number of co-enabled transitions 3700 [2021-04-29 03:44:39,678 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:39,678 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:39,678 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-29 03:44:39,679 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 77 transitions, 281 flow [2021-04-29 03:44:39,680 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) [2021-04-29 03:44:39,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:39,680 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] [2021-04-29 03:44:39,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-04-29 03:44:39,680 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:39,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:39,681 INFO L82 PathProgramCache]: Analyzing trace with hash -4577491, now seen corresponding path program 1 times [2021-04-29 03:44:39,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:39,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969334437] [2021-04-29 03:44:39,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:39,687 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:39,689 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:39,694 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:39,694 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:39,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-04-29 03:44:39,695 WARN L342 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:39,695 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2021-04-29 03:44:39,725 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:39,726 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:39,726 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:39,726 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:39,727 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:39,727 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:39,727 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:39,727 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:39,727 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:39,727 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:39,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 83 transitions, 946 flow [2021-04-29 03:44:39,752 INFO L129 PetriNetUnfolder]: 0/161 cut-off events. [2021-04-29 03:44:39,752 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:39,752 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. [2021-04-29 03:44:39,752 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 83 transitions, 946 flow [2021-04-29 03:44:39,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 81 transitions, 942 flow [2021-04-29 03:44:39,754 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:39,755 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 81 transitions, 942 flow [2021-04-29 03:44:39,755 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 81 transitions, 942 flow [2021-04-29 03:44:39,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 81 transitions, 942 flow [2021-04-29 03:44:39,774 INFO L129 PetriNetUnfolder]: 0/107 cut-off events. [2021-04-29 03:44:39,774 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:39,774 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. [2021-04-29 03:44:39,780 INFO L146 LiptonReduction]: Number of co-enabled transitions 4108 [2021-04-29 03:44:41,534 INFO L158 LiptonReduction]: Checked pairs total: 1677 [2021-04-29 03:44:41,534 INFO L160 LiptonReduction]: Total number of compositions: 26 [2021-04-29 03:44:41,535 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1781 [2021-04-29 03:44:41,536 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:41,536 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:41,537 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:41,537 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:41,537 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:41,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:41,537 INFO L82 PathProgramCache]: Analyzing trace with hash 49315, now seen corresponding path program 1 times [2021-04-29 03:44:41,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:41,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729188005] [2021-04-29 03:44:41,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:41,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:41,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:41,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729188005] [2021-04-29 03:44:41,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:41,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:41,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169775548] [2021-04-29 03:44:41,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:41,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:41,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:41,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:41,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 109 [2021-04-29 03:44:41,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 81 transitions, 942 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) [2021-04-29 03:44:41,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:41,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 109 [2021-04-29 03:44:41,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:41,570 INFO L129 PetriNetUnfolder]: 0/80 cut-off events. [2021-04-29 03:44:41,570 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:41,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 80 events. 0/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 114 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. [2021-04-29 03:44:41,571 INFO L132 encePairwiseOnDemand]: 107/109 looper letters, 0 selfloop transitions, 1 changer transitions 0/80 dead transitions. [2021-04-29 03:44:41,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 80 transitions, 942 flow [2021-04-29 03:44:41,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:41,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2021-04-29 03:44:41,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9785932721712538 [2021-04-29 03:44:41,572 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2021-04-29 03:44:41,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2021-04-29 03:44:41,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:41,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2021-04-29 03:44:41,574 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) [2021-04-29 03:44:41,575 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) [2021-04-29 03:44:41,575 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) [2021-04-29 03:44:41,575 INFO L185 Difference]: Start difference. First operand has 134 places, 81 transitions, 942 flow. Second operand 3 states and 320 transitions. [2021-04-29 03:44:41,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 80 transitions, 942 flow [2021-04-29 03:44:41,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 80 transitions, 292 flow, removed 325 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:41,590 INFO L241 Difference]: Finished difference. Result has 135 places, 80 transitions, 292 flow [2021-04-29 03:44:41,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=133, 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=292, PETRI_PLACES=135, PETRI_TRANSITIONS=80} [2021-04-29 03:44:41,590 INFO L343 CegarLoopForPetriNet]: 134 programPoint places, 1 predicate places. [2021-04-29 03:44:41,590 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:41,591 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 80 transitions, 292 flow [2021-04-29 03:44:41,591 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 80 transitions, 292 flow [2021-04-29 03:44:41,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 80 transitions, 292 flow [2021-04-29 03:44:41,603 INFO L129 PetriNetUnfolder]: 0/80 cut-off events. [2021-04-29 03:44:41,603 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:41,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 80 events. 0/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 169 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. [2021-04-29 03:44:41,605 INFO L146 LiptonReduction]: Number of co-enabled transitions 4004 [2021-04-29 03:44:41,611 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:41,611 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:41,612 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 03:44:41,613 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 80 transitions, 292 flow [2021-04-29 03:44:41,613 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) [2021-04-29 03:44:41,613 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:41,613 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] [2021-04-29 03:44:41,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-04-29 03:44:41,614 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:41,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1477290255, now seen corresponding path program 1 times [2021-04-29 03:44:41,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:41,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471630273] [2021-04-29 03:44:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:41,620 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:41,622 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:41,627 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:41,627 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:41,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-04-29 03:44:41,627 WARN L342 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:41,627 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2021-04-29 03:44:41,657 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:41,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:41,658 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:41,658 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:41,658 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:41,658 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:41,658 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:41,658 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:41,659 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:41,659 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:41,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 86 transitions, 1009 flow [2021-04-29 03:44:41,683 INFO L129 PetriNetUnfolder]: 0/167 cut-off events. [2021-04-29 03:44:41,683 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:41,683 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. [2021-04-29 03:44:41,683 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 86 transitions, 1009 flow [2021-04-29 03:44:41,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 84 transitions, 1005 flow [2021-04-29 03:44:41,685 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:41,685 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 84 transitions, 1005 flow [2021-04-29 03:44:41,686 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 84 transitions, 1005 flow [2021-04-29 03:44:41,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 84 transitions, 1005 flow [2021-04-29 03:44:41,705 INFO L129 PetriNetUnfolder]: 0/111 cut-off events. [2021-04-29 03:44:41,705 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:41,705 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. [2021-04-29 03:44:41,710 INFO L146 LiptonReduction]: Number of co-enabled transitions 4428 [2021-04-29 03:44:43,624 INFO L158 LiptonReduction]: Checked pairs total: 1809 [2021-04-29 03:44:43,625 INFO L160 LiptonReduction]: Total number of compositions: 27 [2021-04-29 03:44:43,625 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1940 [2021-04-29 03:44:43,627 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:43,627 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:43,627 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:43,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:43,628 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:43,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:43,628 INFO L82 PathProgramCache]: Analyzing trace with hash 52899, now seen corresponding path program 1 times [2021-04-29 03:44:43,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:43,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073317687] [2021-04-29 03:44:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:43,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:43,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:43,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:43,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073317687] [2021-04-29 03:44:43,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:43,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:43,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4047412] [2021-04-29 03:44:43,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:43,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:43,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:43,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:43,640 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 113 [2021-04-29 03:44:43,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 84 transitions, 1005 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) [2021-04-29 03:44:43,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:43,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 113 [2021-04-29 03:44:43,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:43,661 INFO L129 PetriNetUnfolder]: 0/83 cut-off events. [2021-04-29 03:44:43,661 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:43,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 83 events. 0/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 165 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. [2021-04-29 03:44:43,662 INFO L132 encePairwiseOnDemand]: 111/113 looper letters, 0 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2021-04-29 03:44:43,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 83 transitions, 1005 flow [2021-04-29 03:44:43,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:43,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2021-04-29 03:44:43,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9793510324483776 [2021-04-29 03:44:43,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2021-04-29 03:44:43,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2021-04-29 03:44:43,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:43,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2021-04-29 03:44:43,665 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) [2021-04-29 03:44:43,666 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) [2021-04-29 03:44:43,667 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) [2021-04-29 03:44:43,667 INFO L185 Difference]: Start difference. First operand has 139 places, 84 transitions, 1005 flow. Second operand 3 states and 332 transitions. [2021-04-29 03:44:43,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 83 transitions, 1005 flow [2021-04-29 03:44:43,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 83 transitions, 303 flow, removed 351 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:43,683 INFO L241 Difference]: Finished difference. Result has 140 places, 83 transitions, 303 flow [2021-04-29 03:44:43,683 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=140, PETRI_TRANSITIONS=83} [2021-04-29 03:44:43,683 INFO L343 CegarLoopForPetriNet]: 139 programPoint places, 1 predicate places. [2021-04-29 03:44:43,683 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:43,684 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 83 transitions, 303 flow [2021-04-29 03:44:43,684 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 83 transitions, 303 flow [2021-04-29 03:44:43,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 83 transitions, 303 flow [2021-04-29 03:44:43,696 INFO L129 PetriNetUnfolder]: 0/83 cut-off events. [2021-04-29 03:44:43,697 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:43,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 83 events. 0/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 172 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. [2021-04-29 03:44:43,699 INFO L146 LiptonReduction]: Number of co-enabled transitions 4320 [2021-04-29 03:44:43,706 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:43,706 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:43,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-29 03:44:43,707 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 83 transitions, 303 flow [2021-04-29 03:44:43,708 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) [2021-04-29 03:44:43,708 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:43,708 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] [2021-04-29 03:44:43,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-04-29 03:44:43,708 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:43,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:43,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1932848600, now seen corresponding path program 1 times [2021-04-29 03:44:43,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:43,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115645101] [2021-04-29 03:44:43,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:43,715 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:43,717 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:43,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:43,722 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:43,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-04-29 03:44:43,723 WARN L342 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:43,723 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2021-04-29 03:44:43,763 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:43,764 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:43,765 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:43,765 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:43,765 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:43,765 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:43,765 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:43,765 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:43,765 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:43,765 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:43,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 89 transitions, 1074 flow [2021-04-29 03:44:43,791 INFO L129 PetriNetUnfolder]: 0/173 cut-off events. [2021-04-29 03:44:43,792 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:43,792 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. [2021-04-29 03:44:43,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 89 transitions, 1074 flow [2021-04-29 03:44:43,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 87 transitions, 1070 flow [2021-04-29 03:44:43,794 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:43,794 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 87 transitions, 1070 flow [2021-04-29 03:44:43,794 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 87 transitions, 1070 flow [2021-04-29 03:44:43,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 87 transitions, 1070 flow [2021-04-29 03:44:43,814 INFO L129 PetriNetUnfolder]: 0/115 cut-off events. [2021-04-29 03:44:43,814 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:43,814 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. [2021-04-29 03:44:43,820 INFO L146 LiptonReduction]: Number of co-enabled transitions 4760 [2021-04-29 03:44:45,879 INFO L158 LiptonReduction]: Checked pairs total: 1946 [2021-04-29 03:44:45,880 INFO L160 LiptonReduction]: Total number of compositions: 28 [2021-04-29 03:44:45,880 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2086 [2021-04-29 03:44:45,882 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:45,882 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:45,882 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:45,882 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:45,883 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:45,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:45,883 INFO L82 PathProgramCache]: Analyzing trace with hash 56611, now seen corresponding path program 1 times [2021-04-29 03:44:45,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:45,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135930055] [2021-04-29 03:44:45,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:45,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:45,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:45,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:45,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135930055] [2021-04-29 03:44:45,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:45,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:45,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221868101] [2021-04-29 03:44:45,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:45,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:45,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:45,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:45,896 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 117 [2021-04-29 03:44:45,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 87 transitions, 1070 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) [2021-04-29 03:44:45,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:45,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 117 [2021-04-29 03:44:45,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:45,919 INFO L129 PetriNetUnfolder]: 0/86 cut-off events. [2021-04-29 03:44:45,919 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:45,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 579 conditions, 86 events. 0/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 186 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. [2021-04-29 03:44:45,920 INFO L132 encePairwiseOnDemand]: 115/117 looper letters, 0 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2021-04-29 03:44:45,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 86 transitions, 1070 flow [2021-04-29 03:44:45,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:45,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:45,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2021-04-29 03:44:45,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.98005698005698 [2021-04-29 03:44:45,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2021-04-29 03:44:45,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2021-04-29 03:44:45,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:45,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2021-04-29 03:44:45,923 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) [2021-04-29 03:44:45,924 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) [2021-04-29 03:44:45,925 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) [2021-04-29 03:44:45,925 INFO L185 Difference]: Start difference. First operand has 144 places, 87 transitions, 1070 flow. Second operand 3 states and 344 transitions. [2021-04-29 03:44:45,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 86 transitions, 1070 flow [2021-04-29 03:44:45,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 86 transitions, 314 flow, removed 378 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:45,944 INFO L241 Difference]: Finished difference. Result has 145 places, 86 transitions, 314 flow [2021-04-29 03:44:45,944 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=143, 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=314, PETRI_PLACES=145, PETRI_TRANSITIONS=86} [2021-04-29 03:44:45,944 INFO L343 CegarLoopForPetriNet]: 144 programPoint places, 1 predicate places. [2021-04-29 03:44:45,945 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:45,945 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 86 transitions, 314 flow [2021-04-29 03:44:45,945 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 86 transitions, 314 flow [2021-04-29 03:44:45,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 86 transitions, 314 flow [2021-04-29 03:44:45,958 INFO L129 PetriNetUnfolder]: 0/86 cut-off events. [2021-04-29 03:44:45,959 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:45,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 86 events. 0/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 166 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. [2021-04-29 03:44:45,962 INFO L146 LiptonReduction]: Number of co-enabled transitions 4648 [2021-04-29 03:44:45,969 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:45,970 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:45,970 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 03:44:45,971 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 86 transitions, 314 flow [2021-04-29 03:44:45,971 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) [2021-04-29 03:44:45,971 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:45,972 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] [2021-04-29 03:44:45,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-04-29 03:44:45,972 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:45,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:45,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1008561454, now seen corresponding path program 1 times [2021-04-29 03:44:45,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:45,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115490183] [2021-04-29 03:44:45,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:45,979 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:45,981 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:45,987 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:45,987 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:45,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-04-29 03:44:45,987 WARN L342 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:45,987 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2021-04-29 03:44:46,021 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:46,022 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:46,022 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:46,023 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:46,023 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:46,023 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:46,023 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:46,023 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:46,023 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:46,023 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:46,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 92 transitions, 1141 flow [2021-04-29 03:44:46,052 INFO L129 PetriNetUnfolder]: 0/179 cut-off events. [2021-04-29 03:44:46,053 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:46,053 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. [2021-04-29 03:44:46,053 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 92 transitions, 1141 flow [2021-04-29 03:44:46,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 90 transitions, 1137 flow [2021-04-29 03:44:46,055 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:46,055 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 90 transitions, 1137 flow [2021-04-29 03:44:46,055 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 90 transitions, 1137 flow [2021-04-29 03:44:46,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 90 transitions, 1137 flow [2021-04-29 03:44:46,078 INFO L129 PetriNetUnfolder]: 0/119 cut-off events. [2021-04-29 03:44:46,078 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:46,078 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. [2021-04-29 03:44:46,085 INFO L146 LiptonReduction]: Number of co-enabled transitions 5104 [2021-04-29 03:44:48,300 INFO L158 LiptonReduction]: Checked pairs total: 2088 [2021-04-29 03:44:48,300 INFO L160 LiptonReduction]: Total number of compositions: 29 [2021-04-29 03:44:48,301 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2246 [2021-04-29 03:44:48,302 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:48,302 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:48,302 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:48,302 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:48,302 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:48,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:48,303 INFO L82 PathProgramCache]: Analyzing trace with hash 60451, now seen corresponding path program 1 times [2021-04-29 03:44:48,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:48,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027902229] [2021-04-29 03:44:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:48,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:48,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:48,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027902229] [2021-04-29 03:44:48,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:48,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:48,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188276] [2021-04-29 03:44:48,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:48,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:48,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:48,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:48,323 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 121 [2021-04-29 03:44:48,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 90 transitions, 1137 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) [2021-04-29 03:44:48,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:48,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 121 [2021-04-29 03:44:48,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:48,355 INFO L129 PetriNetUnfolder]: 0/89 cut-off events. [2021-04-29 03:44:48,356 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:48,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 89 events. 0/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 159 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. [2021-04-29 03:44:48,356 INFO L132 encePairwiseOnDemand]: 119/121 looper letters, 0 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2021-04-29 03:44:48,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 89 transitions, 1137 flow [2021-04-29 03:44:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:48,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:48,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2021-04-29 03:44:48,358 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9807162534435262 [2021-04-29 03:44:48,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2021-04-29 03:44:48,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2021-04-29 03:44:48,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:48,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2021-04-29 03:44:48,360 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) [2021-04-29 03:44:48,361 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) [2021-04-29 03:44:48,361 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) [2021-04-29 03:44:48,361 INFO L185 Difference]: Start difference. First operand has 149 places, 90 transitions, 1137 flow. Second operand 3 states and 356 transitions. [2021-04-29 03:44:48,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 89 transitions, 1137 flow [2021-04-29 03:44:48,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 89 transitions, 325 flow, removed 406 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:48,382 INFO L241 Difference]: Finished difference. Result has 150 places, 89 transitions, 325 flow [2021-04-29 03:44:48,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=150, PETRI_TRANSITIONS=89} [2021-04-29 03:44:48,385 INFO L343 CegarLoopForPetriNet]: 149 programPoint places, 1 predicate places. [2021-04-29 03:44:48,386 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:48,386 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 89 transitions, 325 flow [2021-04-29 03:44:48,386 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 89 transitions, 325 flow [2021-04-29 03:44:48,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 89 transitions, 325 flow [2021-04-29 03:44:48,399 INFO L129 PetriNetUnfolder]: 0/89 cut-off events. [2021-04-29 03:44:48,400 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:48,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 89 events. 0/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 156 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. [2021-04-29 03:44:48,402 INFO L146 LiptonReduction]: Number of co-enabled transitions 4988 [2021-04-29 03:44:48,410 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:48,411 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:48,411 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 03:44:48,412 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 89 transitions, 325 flow [2021-04-29 03:44:48,412 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) [2021-04-29 03:44:48,412 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:48,412 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] [2021-04-29 03:44:48,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-04-29 03:44:48,413 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:48,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:48,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1949254963, now seen corresponding path program 1 times [2021-04-29 03:44:48,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:48,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654331146] [2021-04-29 03:44:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:48,419 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:48,422 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:48,427 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:48,427 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:48,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-04-29 03:44:48,428 WARN L342 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:48,428 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2021-04-29 03:44:48,461 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:48,461 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:48,462 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:48,463 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:48,463 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:48,463 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:48,463 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:48,463 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:48,463 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:48,463 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:48,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 95 transitions, 1210 flow [2021-04-29 03:44:48,492 INFO L129 PetriNetUnfolder]: 0/185 cut-off events. [2021-04-29 03:44:48,493 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:48,493 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. [2021-04-29 03:44:48,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 95 transitions, 1210 flow [2021-04-29 03:44:48,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 93 transitions, 1206 flow [2021-04-29 03:44:48,498 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:48,499 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 93 transitions, 1206 flow [2021-04-29 03:44:48,499 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 93 transitions, 1206 flow [2021-04-29 03:44:48,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 93 transitions, 1206 flow [2021-04-29 03:44:48,522 INFO L129 PetriNetUnfolder]: 0/123 cut-off events. [2021-04-29 03:44:48,522 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:48,523 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. [2021-04-29 03:44:48,529 INFO L146 LiptonReduction]: Number of co-enabled transitions 5460 [2021-04-29 03:44:50,910 INFO L158 LiptonReduction]: Checked pairs total: 2235 [2021-04-29 03:44:50,910 INFO L160 LiptonReduction]: Total number of compositions: 30 [2021-04-29 03:44:50,910 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2412 [2021-04-29 03:44:50,912 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:50,912 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:50,912 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:50,913 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:50,913 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:50,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:50,976 INFO L82 PathProgramCache]: Analyzing trace with hash 64419, now seen corresponding path program 1 times [2021-04-29 03:44:50,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:50,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50361788] [2021-04-29 03:44:50,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:50,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:50,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:50,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50361788] [2021-04-29 03:44:50,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:50,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:50,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441211448] [2021-04-29 03:44:50,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:50,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:50,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:50,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:50,990 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 125 [2021-04-29 03:44:50,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 93 transitions, 1206 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) [2021-04-29 03:44:50,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:50,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 125 [2021-04-29 03:44:50,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:51,014 INFO L129 PetriNetUnfolder]: 0/92 cut-off events. [2021-04-29 03:44:51,014 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:51,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 150 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. [2021-04-29 03:44:51,015 INFO L132 encePairwiseOnDemand]: 123/125 looper letters, 0 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2021-04-29 03:44:51,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 92 transitions, 1206 flow [2021-04-29 03:44:51,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:51,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2021-04-29 03:44:51,017 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9813333333333333 [2021-04-29 03:44:51,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2021-04-29 03:44:51,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2021-04-29 03:44:51,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:51,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2021-04-29 03:44:51,018 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) [2021-04-29 03:44:51,019 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) [2021-04-29 03:44:51,023 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) [2021-04-29 03:44:51,023 INFO L185 Difference]: Start difference. First operand has 154 places, 93 transitions, 1206 flow. Second operand 3 states and 368 transitions. [2021-04-29 03:44:51,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 92 transitions, 1206 flow [2021-04-29 03:44:51,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 92 transitions, 336 flow, removed 435 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:51,047 INFO L241 Difference]: Finished difference. Result has 155 places, 92 transitions, 336 flow [2021-04-29 03:44:51,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=153, 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=336, PETRI_PLACES=155, PETRI_TRANSITIONS=92} [2021-04-29 03:44:51,047 INFO L343 CegarLoopForPetriNet]: 154 programPoint places, 1 predicate places. [2021-04-29 03:44:51,047 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:51,047 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 92 transitions, 336 flow [2021-04-29 03:44:51,048 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 92 transitions, 336 flow [2021-04-29 03:44:51,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 155 places, 92 transitions, 336 flow [2021-04-29 03:44:51,065 INFO L129 PetriNetUnfolder]: 0/92 cut-off events. [2021-04-29 03:44:51,065 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:51,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 165 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. [2021-04-29 03:44:51,069 INFO L146 LiptonReduction]: Number of co-enabled transitions 5340 [2021-04-29 03:44:51,077 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:51,078 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:51,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-04-29 03:44:51,079 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 92 transitions, 336 flow [2021-04-29 03:44:51,079 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) [2021-04-29 03:44:51,079 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:51,080 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] [2021-04-29 03:44:51,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-04-29 03:44:51,080 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:51,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:51,080 INFO L82 PathProgramCache]: Analyzing trace with hash 2018076821, now seen corresponding path program 1 times [2021-04-29 03:44:51,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:51,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049256049] [2021-04-29 03:44:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:51,088 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:51,091 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:51,097 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:51,097 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:51,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-04-29 03:44:51,097 WARN L342 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:51,097 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2021-04-29 03:44:51,138 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:51,139 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:51,140 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:51,140 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:51,140 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:51,140 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:51,140 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:51,140 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:51,140 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:51,140 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:51,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 98 transitions, 1281 flow [2021-04-29 03:44:51,179 INFO L129 PetriNetUnfolder]: 0/191 cut-off events. [2021-04-29 03:44:51,179 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:51,179 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. [2021-04-29 03:44:51,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 98 transitions, 1281 flow [2021-04-29 03:44:51,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 96 transitions, 1277 flow [2021-04-29 03:44:51,182 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:51,182 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 96 transitions, 1277 flow [2021-04-29 03:44:51,182 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 96 transitions, 1277 flow [2021-04-29 03:44:51,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 96 transitions, 1277 flow [2021-04-29 03:44:51,211 INFO L129 PetriNetUnfolder]: 0/127 cut-off events. [2021-04-29 03:44:51,211 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:51,212 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. [2021-04-29 03:44:51,220 INFO L146 LiptonReduction]: Number of co-enabled transitions 5828 [2021-04-29 03:44:53,916 INFO L158 LiptonReduction]: Checked pairs total: 2387 [2021-04-29 03:44:53,916 INFO L160 LiptonReduction]: Total number of compositions: 31 [2021-04-29 03:44:53,916 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2734 [2021-04-29 03:44:53,918 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:44:53,918 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:53,919 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:53,919 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:53,919 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:53,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:53,919 INFO L82 PathProgramCache]: Analyzing trace with hash 68515, now seen corresponding path program 1 times [2021-04-29 03:44:53,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:53,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570414999] [2021-04-29 03:44:53,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:53,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:53,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:53,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:53,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570414999] [2021-04-29 03:44:53,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:53,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:53,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675568954] [2021-04-29 03:44:53,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:53,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:53,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:53,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:53,931 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 129 [2021-04-29 03:44:53,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 96 transitions, 1277 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) [2021-04-29 03:44:53,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:53,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 129 [2021-04-29 03:44:53,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:53,958 INFO L129 PetriNetUnfolder]: 0/95 cut-off events. [2021-04-29 03:44:53,958 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:53,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 95 events. 0/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 189 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. [2021-04-29 03:44:53,959 INFO L132 encePairwiseOnDemand]: 127/129 looper letters, 0 selfloop transitions, 1 changer transitions 0/95 dead transitions. [2021-04-29 03:44:53,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 95 transitions, 1277 flow [2021-04-29 03:44:53,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:53,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2021-04-29 03:44:53,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9819121447028424 [2021-04-29 03:44:53,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2021-04-29 03:44:53,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2021-04-29 03:44:53,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:53,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2021-04-29 03:44:53,962 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) [2021-04-29 03:44:53,963 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) [2021-04-29 03:44:53,963 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) [2021-04-29 03:44:53,964 INFO L185 Difference]: Start difference. First operand has 159 places, 96 transitions, 1277 flow. Second operand 3 states and 380 transitions. [2021-04-29 03:44:53,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 95 transitions, 1277 flow [2021-04-29 03:44:53,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 95 transitions, 347 flow, removed 465 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:53,987 INFO L241 Difference]: Finished difference. Result has 160 places, 95 transitions, 347 flow [2021-04-29 03:44:53,987 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=160, PETRI_TRANSITIONS=95} [2021-04-29 03:44:53,988 INFO L343 CegarLoopForPetriNet]: 159 programPoint places, 1 predicate places. [2021-04-29 03:44:53,988 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:53,988 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 95 transitions, 347 flow [2021-04-29 03:44:53,988 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 95 transitions, 347 flow [2021-04-29 03:44:53,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 95 transitions, 347 flow [2021-04-29 03:44:54,004 INFO L129 PetriNetUnfolder]: 0/95 cut-off events. [2021-04-29 03:44:54,004 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:54,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 95 events. 0/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 191 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. [2021-04-29 03:44:54,008 INFO L146 LiptonReduction]: Number of co-enabled transitions 5704 [2021-04-29 03:44:54,016 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:54,016 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:54,017 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-29 03:44:54,018 INFO L480 AbstractCegarLoop]: Abstraction has has 160 places, 95 transitions, 347 flow [2021-04-29 03:44:54,019 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) [2021-04-29 03:44:54,019 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:54,019 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] [2021-04-29 03:44:54,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-04-29 03:44:54,019 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:54,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:54,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1642907058, now seen corresponding path program 1 times [2021-04-29 03:44:54,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:54,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24374879] [2021-04-29 03:44:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:54,026 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:54,029 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:54,035 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:54,035 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:54,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-04-29 03:44:54,036 WARN L342 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:54,036 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2021-04-29 03:44:54,079 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:54,080 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:54,080 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:54,080 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:54,080 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:54,081 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:54,081 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:54,081 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:54,081 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:54,081 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:54,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 101 transitions, 1354 flow [2021-04-29 03:44:54,116 INFO L129 PetriNetUnfolder]: 0/197 cut-off events. [2021-04-29 03:44:54,116 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:54,116 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. [2021-04-29 03:44:54,117 INFO L82 GeneralOperation]: Start removeDead. Operand has 166 places, 101 transitions, 1354 flow [2021-04-29 03:44:54,118 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 99 transitions, 1350 flow [2021-04-29 03:44:54,119 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:54,119 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 99 transitions, 1350 flow [2021-04-29 03:44:54,119 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 99 transitions, 1350 flow [2021-04-29 03:44:54,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 164 places, 99 transitions, 1350 flow [2021-04-29 03:44:54,145 INFO L129 PetriNetUnfolder]: 0/131 cut-off events. [2021-04-29 03:44:54,146 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:54,146 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. [2021-04-29 03:44:54,153 INFO L146 LiptonReduction]: Number of co-enabled transitions 6208 [2021-04-29 03:44:56,912 INFO L158 LiptonReduction]: Checked pairs total: 2544 [2021-04-29 03:44:56,912 INFO L160 LiptonReduction]: Total number of compositions: 32 [2021-04-29 03:44:56,912 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2793 [2021-04-29 03:44:56,915 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:44:56,915 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:56,915 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:56,915 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:44:56,915 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:56,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:56,915 INFO L82 PathProgramCache]: Analyzing trace with hash 72739, now seen corresponding path program 1 times [2021-04-29 03:44:56,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:56,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504273685] [2021-04-29 03:44:56,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:44:56,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:44:56,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:44:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:44:56,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504273685] [2021-04-29 03:44:56,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:44:56,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:44:56,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393618846] [2021-04-29 03:44:56,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:44:56,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:44:56,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:44:56,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:44:56,931 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 133 [2021-04-29 03:44:56,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 99 transitions, 1350 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) [2021-04-29 03:44:56,932 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:44:56,932 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 133 [2021-04-29 03:44:56,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:44:56,959 INFO L129 PetriNetUnfolder]: 0/98 cut-off events. [2021-04-29 03:44:56,959 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:56,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 98 events. 0/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 204 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. [2021-04-29 03:44:56,960 INFO L132 encePairwiseOnDemand]: 131/133 looper letters, 0 selfloop transitions, 1 changer transitions 0/98 dead transitions. [2021-04-29 03:44:56,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 98 transitions, 1350 flow [2021-04-29 03:44:56,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:44:56,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:44:56,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2021-04-29 03:44:56,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9824561403508771 [2021-04-29 03:44:56,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2021-04-29 03:44:56,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2021-04-29 03:44:56,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:44:56,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2021-04-29 03:44:56,963 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) [2021-04-29 03:44:56,964 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) [2021-04-29 03:44:56,964 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) [2021-04-29 03:44:56,964 INFO L185 Difference]: Start difference. First operand has 164 places, 99 transitions, 1350 flow. Second operand 3 states and 392 transitions. [2021-04-29 03:44:56,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 98 transitions, 1350 flow [2021-04-29 03:44:56,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 98 transitions, 358 flow, removed 496 selfloop flow, removed 0 redundant places. [2021-04-29 03:44:56,991 INFO L241 Difference]: Finished difference. Result has 165 places, 98 transitions, 358 flow [2021-04-29 03:44:56,991 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=163, 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=358, PETRI_PLACES=165, PETRI_TRANSITIONS=98} [2021-04-29 03:44:56,991 INFO L343 CegarLoopForPetriNet]: 164 programPoint places, 1 predicate places. [2021-04-29 03:44:56,991 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:56,991 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 98 transitions, 358 flow [2021-04-29 03:44:56,992 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 98 transitions, 358 flow [2021-04-29 03:44:56,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 165 places, 98 transitions, 358 flow [2021-04-29 03:44:57,008 INFO L129 PetriNetUnfolder]: 0/98 cut-off events. [2021-04-29 03:44:57,008 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:57,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 98 events. 0/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 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. [2021-04-29 03:44:57,011 INFO L146 LiptonReduction]: Number of co-enabled transitions 6080 [2021-04-29 03:44:57,020 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:44:57,020 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:44:57,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-29 03:44:57,022 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 98 transitions, 358 flow [2021-04-29 03:44:57,022 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) [2021-04-29 03:44:57,022 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:44:57,022 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] [2021-04-29 03:44:57,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-04-29 03:44:57,022 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:44:57,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:44:57,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1398026328, now seen corresponding path program 1 times [2021-04-29 03:44:57,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:44:57,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808697815] [2021-04-29 03:44:57,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:44:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:57,029 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:44:57,032 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:44:57,038 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:44:57,038 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:44:57,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-04-29 03:44:57,038 WARN L342 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:44:57,038 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2021-04-29 03:44:57,075 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:44:57,075 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:44:57,076 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:44:57,076 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:44:57,076 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:44:57,076 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:44:57,076 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:44:57,077 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:44:57,077 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:44:57,077 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:44:57,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 104 transitions, 1429 flow [2021-04-29 03:44:57,112 INFO L129 PetriNetUnfolder]: 0/203 cut-off events. [2021-04-29 03:44:57,113 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:57,113 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. [2021-04-29 03:44:57,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 104 transitions, 1429 flow [2021-04-29 03:44:57,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 102 transitions, 1425 flow [2021-04-29 03:44:57,115 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:44:57,115 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 102 transitions, 1425 flow [2021-04-29 03:44:57,115 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 102 transitions, 1425 flow [2021-04-29 03:44:57,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 102 transitions, 1425 flow [2021-04-29 03:44:57,142 INFO L129 PetriNetUnfolder]: 0/135 cut-off events. [2021-04-29 03:44:57,142 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:44:57,142 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. [2021-04-29 03:44:57,151 INFO L146 LiptonReduction]: Number of co-enabled transitions 6600 [2021-04-29 03:45:00,109 INFO L158 LiptonReduction]: Checked pairs total: 2706 [2021-04-29 03:45:00,110 INFO L160 LiptonReduction]: Total number of compositions: 33 [2021-04-29 03:45:00,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2995 [2021-04-29 03:45:00,112 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:45:00,112 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:00,112 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:00,112 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:00,112 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:00,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:00,113 INFO L82 PathProgramCache]: Analyzing trace with hash 77091, now seen corresponding path program 1 times [2021-04-29 03:45:00,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:00,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865406038] [2021-04-29 03:45:00,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:00,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:00,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:00,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:00,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865406038] [2021-04-29 03:45:00,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:00,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:00,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225799097] [2021-04-29 03:45:00,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:00,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:00,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:00,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:00,125 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 137 [2021-04-29 03:45:00,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 102 transitions, 1425 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) [2021-04-29 03:45:00,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:00,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 137 [2021-04-29 03:45:00,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:00,153 INFO L129 PetriNetUnfolder]: 0/101 cut-off events. [2021-04-29 03:45:00,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:00,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 201 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. [2021-04-29 03:45:00,154 INFO L132 encePairwiseOnDemand]: 135/137 looper letters, 0 selfloop transitions, 1 changer transitions 0/101 dead transitions. [2021-04-29 03:45:00,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 101 transitions, 1425 flow [2021-04-29 03:45:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:00,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:00,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2021-04-29 03:45:00,156 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9829683698296837 [2021-04-29 03:45:00,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2021-04-29 03:45:00,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2021-04-29 03:45:00,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:00,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2021-04-29 03:45:00,158 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) [2021-04-29 03:45:00,159 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) [2021-04-29 03:45:00,159 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) [2021-04-29 03:45:00,159 INFO L185 Difference]: Start difference. First operand has 169 places, 102 transitions, 1425 flow. Second operand 3 states and 404 transitions. [2021-04-29 03:45:00,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 101 transitions, 1425 flow [2021-04-29 03:45:00,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 101 transitions, 369 flow, removed 528 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:00,189 INFO L241 Difference]: Finished difference. Result has 170 places, 101 transitions, 369 flow [2021-04-29 03:45:00,189 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=170, PETRI_TRANSITIONS=101} [2021-04-29 03:45:00,190 INFO L343 CegarLoopForPetriNet]: 169 programPoint places, 1 predicate places. [2021-04-29 03:45:00,190 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:00,190 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 101 transitions, 369 flow [2021-04-29 03:45:00,190 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 101 transitions, 369 flow [2021-04-29 03:45:00,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 170 places, 101 transitions, 369 flow [2021-04-29 03:45:00,207 INFO L129 PetriNetUnfolder]: 0/101 cut-off events. [2021-04-29 03:45:00,208 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:00,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 213 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. [2021-04-29 03:45:00,211 INFO L146 LiptonReduction]: Number of co-enabled transitions 6468 [2021-04-29 03:45:00,220 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:00,220 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:00,220 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-04-29 03:45:00,222 INFO L480 AbstractCegarLoop]: Abstraction has has 170 places, 101 transitions, 369 flow [2021-04-29 03:45:00,222 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) [2021-04-29 03:45:00,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:00,222 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] [2021-04-29 03:45:00,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-04-29 03:45:00,223 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:00,223 INFO L82 PathProgramCache]: Analyzing trace with hash -103388295, now seen corresponding path program 1 times [2021-04-29 03:45:00,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:00,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277783530] [2021-04-29 03:45:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:00,230 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:00,232 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:00,238 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:00,238 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:00,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-04-29 03:45:00,239 WARN L342 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:00,239 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2021-04-29 03:45:00,276 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:00,277 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:00,277 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:00,277 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:00,277 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:00,277 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:00,278 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:00,278 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:00,278 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:00,278 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:00,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 176 places, 107 transitions, 1506 flow [2021-04-29 03:45:00,315 INFO L129 PetriNetUnfolder]: 0/209 cut-off events. [2021-04-29 03:45:00,316 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:00,316 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. [2021-04-29 03:45:00,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 107 transitions, 1506 flow [2021-04-29 03:45:00,318 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 105 transitions, 1502 flow [2021-04-29 03:45:00,318 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:00,318 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 105 transitions, 1502 flow [2021-04-29 03:45:00,318 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 105 transitions, 1502 flow [2021-04-29 03:45:00,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 105 transitions, 1502 flow [2021-04-29 03:45:00,347 INFO L129 PetriNetUnfolder]: 0/139 cut-off events. [2021-04-29 03:45:00,347 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:00,347 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. [2021-04-29 03:45:00,355 INFO L146 LiptonReduction]: Number of co-enabled transitions 7004 [2021-04-29 03:45:03,537 INFO L158 LiptonReduction]: Checked pairs total: 2873 [2021-04-29 03:45:03,537 INFO L160 LiptonReduction]: Total number of compositions: 34 [2021-04-29 03:45:03,537 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3219 [2021-04-29 03:45:03,539 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:45:03,539 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:03,539 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:03,539 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:03,540 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:03,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:03,540 INFO L82 PathProgramCache]: Analyzing trace with hash 81571, now seen corresponding path program 1 times [2021-04-29 03:45:03,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:03,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123901180] [2021-04-29 03:45:03,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:03,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:03,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:03,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123901180] [2021-04-29 03:45:03,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:03,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:03,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399476293] [2021-04-29 03:45:03,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:03,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:03,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:03,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:03,554 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 141 [2021-04-29 03:45:03,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 105 transitions, 1502 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) [2021-04-29 03:45:03,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:03,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 141 [2021-04-29 03:45:03,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:03,581 INFO L129 PetriNetUnfolder]: 0/104 cut-off events. [2021-04-29 03:45:03,582 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:03,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 804 conditions, 104 events. 0/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 228 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. [2021-04-29 03:45:03,583 INFO L132 encePairwiseOnDemand]: 139/141 looper letters, 0 selfloop transitions, 1 changer transitions 0/104 dead transitions. [2021-04-29 03:45:03,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 104 transitions, 1502 flow [2021-04-29 03:45:03,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2021-04-29 03:45:03,585 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.983451536643026 [2021-04-29 03:45:03,585 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2021-04-29 03:45:03,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2021-04-29 03:45:03,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:03,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2021-04-29 03:45:03,586 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) [2021-04-29 03:45:03,587 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) [2021-04-29 03:45:03,588 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) [2021-04-29 03:45:03,588 INFO L185 Difference]: Start difference. First operand has 174 places, 105 transitions, 1502 flow. Second operand 3 states and 416 transitions. [2021-04-29 03:45:03,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 104 transitions, 1502 flow [2021-04-29 03:45:03,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 104 transitions, 380 flow, removed 561 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:03,615 INFO L241 Difference]: Finished difference. Result has 175 places, 104 transitions, 380 flow [2021-04-29 03:45:03,615 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=173, 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=380, PETRI_PLACES=175, PETRI_TRANSITIONS=104} [2021-04-29 03:45:03,615 INFO L343 CegarLoopForPetriNet]: 174 programPoint places, 1 predicate places. [2021-04-29 03:45:03,615 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:03,616 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 104 transitions, 380 flow [2021-04-29 03:45:03,616 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 104 transitions, 380 flow [2021-04-29 03:45:03,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 104 transitions, 380 flow [2021-04-29 03:45:03,634 INFO L129 PetriNetUnfolder]: 0/104 cut-off events. [2021-04-29 03:45:03,634 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:03,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 104 events. 0/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 204 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. [2021-04-29 03:45:03,638 INFO L146 LiptonReduction]: Number of co-enabled transitions 6868 [2021-04-29 03:45:03,647 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:03,648 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:03,648 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-29 03:45:03,649 INFO L480 AbstractCegarLoop]: Abstraction has has 175 places, 104 transitions, 380 flow [2021-04-29 03:45:03,650 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) [2021-04-29 03:45:03,650 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:03,650 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] [2021-04-29 03:45:03,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-04-29 03:45:03,650 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:03,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:03,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1249775589, now seen corresponding path program 1 times [2021-04-29 03:45:03,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:03,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210717130] [2021-04-29 03:45:03,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:03,658 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:03,660 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:03,667 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:03,667 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:03,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-04-29 03:45:03,667 WARN L342 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:03,667 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2021-04-29 03:45:03,707 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:03,707 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:03,708 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:03,708 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:03,708 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:03,708 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:03,708 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:03,708 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:03,708 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:03,709 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:03,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 110 transitions, 1585 flow [2021-04-29 03:45:03,751 INFO L129 PetriNetUnfolder]: 0/215 cut-off events. [2021-04-29 03:45:03,751 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:03,751 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. [2021-04-29 03:45:03,751 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 110 transitions, 1585 flow [2021-04-29 03:45:03,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 108 transitions, 1581 flow [2021-04-29 03:45:03,754 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:03,754 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 108 transitions, 1581 flow [2021-04-29 03:45:03,754 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 108 transitions, 1581 flow [2021-04-29 03:45:03,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 108 transitions, 1581 flow [2021-04-29 03:45:03,785 INFO L129 PetriNetUnfolder]: 0/143 cut-off events. [2021-04-29 03:45:03,785 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:03,786 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. [2021-04-29 03:45:03,795 INFO L146 LiptonReduction]: Number of co-enabled transitions 7420 [2021-04-29 03:45:07,316 INFO L158 LiptonReduction]: Checked pairs total: 3045 [2021-04-29 03:45:07,316 INFO L160 LiptonReduction]: Total number of compositions: 35 [2021-04-29 03:45:07,316 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3562 [2021-04-29 03:45:07,318 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:45:07,319 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:07,319 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:07,319 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:07,319 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:07,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:07,319 INFO L82 PathProgramCache]: Analyzing trace with hash 86179, now seen corresponding path program 1 times [2021-04-29 03:45:07,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:07,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286585626] [2021-04-29 03:45:07,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:07,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:07,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:07,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286585626] [2021-04-29 03:45:07,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:07,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:07,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459984299] [2021-04-29 03:45:07,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:07,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:07,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:07,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:07,333 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 145 [2021-04-29 03:45:07,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 108 transitions, 1581 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) [2021-04-29 03:45:07,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:07,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 145 [2021-04-29 03:45:07,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:07,365 INFO L129 PetriNetUnfolder]: 0/107 cut-off events. [2021-04-29 03:45:07,365 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:07,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 107 events. 0/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 213 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. [2021-04-29 03:45:07,366 INFO L132 encePairwiseOnDemand]: 143/145 looper letters, 0 selfloop transitions, 1 changer transitions 0/107 dead transitions. [2021-04-29 03:45:07,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 107 transitions, 1581 flow [2021-04-29 03:45:07,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:07,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:07,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2021-04-29 03:45:07,368 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9839080459770115 [2021-04-29 03:45:07,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2021-04-29 03:45:07,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2021-04-29 03:45:07,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:07,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2021-04-29 03:45:07,370 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) [2021-04-29 03:45:07,371 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) [2021-04-29 03:45:07,371 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) [2021-04-29 03:45:07,371 INFO L185 Difference]: Start difference. First operand has 179 places, 108 transitions, 1581 flow. Second operand 3 states and 428 transitions. [2021-04-29 03:45:07,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 107 transitions, 1581 flow [2021-04-29 03:45:07,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 107 transitions, 391 flow, removed 595 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:07,397 INFO L241 Difference]: Finished difference. Result has 180 places, 107 transitions, 391 flow [2021-04-29 03:45:07,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=391, PETRI_PLACES=180, PETRI_TRANSITIONS=107} [2021-04-29 03:45:07,398 INFO L343 CegarLoopForPetriNet]: 179 programPoint places, 1 predicate places. [2021-04-29 03:45:07,398 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:07,398 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 107 transitions, 391 flow [2021-04-29 03:45:07,398 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 107 transitions, 391 flow [2021-04-29 03:45:07,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 180 places, 107 transitions, 391 flow [2021-04-29 03:45:07,421 INFO L129 PetriNetUnfolder]: 0/107 cut-off events. [2021-04-29 03:45:07,421 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:07,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 107 events. 0/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 222 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. [2021-04-29 03:45:07,426 INFO L146 LiptonReduction]: Number of co-enabled transitions 7280 [2021-04-29 03:45:07,437 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:07,437 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:07,437 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-04-29 03:45:07,439 INFO L480 AbstractCegarLoop]: Abstraction has has 180 places, 107 transitions, 391 flow [2021-04-29 03:45:07,439 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) [2021-04-29 03:45:07,439 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:07,439 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] [2021-04-29 03:45:07,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-04-29 03:45:07,440 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:07,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:07,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1758155444, now seen corresponding path program 1 times [2021-04-29 03:45:07,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:07,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72779241] [2021-04-29 03:45:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:07,450 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:07,453 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:07,459 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:07,460 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:07,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-04-29 03:45:07,460 WARN L342 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:07,460 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2021-04-29 03:45:07,505 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:07,505 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:07,506 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:07,506 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:07,506 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:07,507 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:07,507 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:07,507 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:07,507 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:07,507 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:07,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 186 places, 113 transitions, 1666 flow [2021-04-29 03:45:07,559 INFO L129 PetriNetUnfolder]: 0/221 cut-off events. [2021-04-29 03:45:07,559 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:07,559 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. [2021-04-29 03:45:07,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 113 transitions, 1666 flow [2021-04-29 03:45:07,562 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 111 transitions, 1662 flow [2021-04-29 03:45:07,562 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:07,562 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 111 transitions, 1662 flow [2021-04-29 03:45:07,562 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 111 transitions, 1662 flow [2021-04-29 03:45:07,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 111 transitions, 1662 flow [2021-04-29 03:45:07,599 INFO L129 PetriNetUnfolder]: 0/147 cut-off events. [2021-04-29 03:45:07,599 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:07,599 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. [2021-04-29 03:45:07,609 INFO L146 LiptonReduction]: Number of co-enabled transitions 7848 [2021-04-29 03:45:11,186 INFO L158 LiptonReduction]: Checked pairs total: 3222 [2021-04-29 03:45:11,187 INFO L160 LiptonReduction]: Total number of compositions: 36 [2021-04-29 03:45:11,187 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3625 [2021-04-29 03:45:11,188 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:45:11,189 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:11,189 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:11,189 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:11,189 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:11,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:11,189 INFO L82 PathProgramCache]: Analyzing trace with hash 90915, now seen corresponding path program 1 times [2021-04-29 03:45:11,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:11,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118586713] [2021-04-29 03:45:11,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:11,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:11,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:11,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118586713] [2021-04-29 03:45:11,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:11,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:11,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032918968] [2021-04-29 03:45:11,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:11,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:11,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:11,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:11,204 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 149 [2021-04-29 03:45:11,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 111 transitions, 1662 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) [2021-04-29 03:45:11,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:11,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 149 [2021-04-29 03:45:11,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:11,232 INFO L129 PetriNetUnfolder]: 0/110 cut-off events. [2021-04-29 03:45:11,233 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:11,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 110 events. 0/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 240 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. [2021-04-29 03:45:11,234 INFO L132 encePairwiseOnDemand]: 147/149 looper letters, 0 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2021-04-29 03:45:11,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 110 transitions, 1662 flow [2021-04-29 03:45:11,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:11,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:11,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2021-04-29 03:45:11,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9843400447427293 [2021-04-29 03:45:11,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2021-04-29 03:45:11,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2021-04-29 03:45:11,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:11,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2021-04-29 03:45:11,237 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) [2021-04-29 03:45:11,238 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) [2021-04-29 03:45:11,238 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) [2021-04-29 03:45:11,239 INFO L185 Difference]: Start difference. First operand has 184 places, 111 transitions, 1662 flow. Second operand 3 states and 440 transitions. [2021-04-29 03:45:11,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 110 transitions, 1662 flow [2021-04-29 03:45:11,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 110 transitions, 402 flow, removed 630 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:11,263 INFO L241 Difference]: Finished difference. Result has 185 places, 110 transitions, 402 flow [2021-04-29 03:45:11,264 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=183, 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=402, PETRI_PLACES=185, PETRI_TRANSITIONS=110} [2021-04-29 03:45:11,264 INFO L343 CegarLoopForPetriNet]: 184 programPoint places, 1 predicate places. [2021-04-29 03:45:11,264 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:11,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 110 transitions, 402 flow [2021-04-29 03:45:11,264 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 110 transitions, 402 flow [2021-04-29 03:45:11,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 185 places, 110 transitions, 402 flow [2021-04-29 03:45:11,283 INFO L129 PetriNetUnfolder]: 0/110 cut-off events. [2021-04-29 03:45:11,283 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:11,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 110 events. 0/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 231 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. [2021-04-29 03:45:11,287 INFO L146 LiptonReduction]: Number of co-enabled transitions 7704 [2021-04-29 03:45:11,298 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:11,298 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:11,299 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-29 03:45:11,300 INFO L480 AbstractCegarLoop]: Abstraction has has 185 places, 110 transitions, 402 flow [2021-04-29 03:45:11,300 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) [2021-04-29 03:45:11,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:11,301 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] [2021-04-29 03:45:11,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-04-29 03:45:11,301 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:11,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:11,301 INFO L82 PathProgramCache]: Analyzing trace with hash -620843554, now seen corresponding path program 1 times [2021-04-29 03:45:11,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:11,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024492632] [2021-04-29 03:45:11,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:11,308 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:11,311 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:11,317 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:11,318 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:11,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-04-29 03:45:11,318 WARN L342 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:11,318 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2021-04-29 03:45:11,360 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:11,360 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:11,361 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:11,361 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:11,361 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:11,361 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:11,361 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:11,361 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:11,361 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:11,362 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:11,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 191 places, 116 transitions, 1749 flow [2021-04-29 03:45:11,401 INFO L129 PetriNetUnfolder]: 0/227 cut-off events. [2021-04-29 03:45:11,401 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:11,401 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. [2021-04-29 03:45:11,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 116 transitions, 1749 flow [2021-04-29 03:45:11,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 114 transitions, 1745 flow [2021-04-29 03:45:11,403 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:11,403 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 189 places, 114 transitions, 1745 flow [2021-04-29 03:45:11,404 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 189 places, 114 transitions, 1745 flow [2021-04-29 03:45:11,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 189 places, 114 transitions, 1745 flow [2021-04-29 03:45:11,437 INFO L129 PetriNetUnfolder]: 0/151 cut-off events. [2021-04-29 03:45:11,438 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:11,438 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. [2021-04-29 03:45:11,448 INFO L146 LiptonReduction]: Number of co-enabled transitions 8288 [2021-04-29 03:45:15,258 INFO L158 LiptonReduction]: Checked pairs total: 3404 [2021-04-29 03:45:15,258 INFO L160 LiptonReduction]: Total number of compositions: 37 [2021-04-29 03:45:15,259 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3856 [2021-04-29 03:45:15,260 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:45:15,261 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:15,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:15,261 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:15,261 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:15,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:15,263 INFO L82 PathProgramCache]: Analyzing trace with hash 95779, now seen corresponding path program 1 times [2021-04-29 03:45:15,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:15,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848917586] [2021-04-29 03:45:15,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:15,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:15,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:15,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:15,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848917586] [2021-04-29 03:45:15,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:15,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:15,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651948601] [2021-04-29 03:45:15,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:15,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:15,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:15,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:15,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 153 [2021-04-29 03:45:15,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 114 transitions, 1745 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) [2021-04-29 03:45:15,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:15,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 153 [2021-04-29 03:45:15,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:15,305 INFO L129 PetriNetUnfolder]: 0/113 cut-off events. [2021-04-29 03:45:15,306 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:15,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 113 events. 0/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 207 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. [2021-04-29 03:45:15,307 INFO L132 encePairwiseOnDemand]: 151/153 looper letters, 0 selfloop transitions, 1 changer transitions 0/113 dead transitions. [2021-04-29 03:45:15,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 113 transitions, 1745 flow [2021-04-29 03:45:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:15,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:15,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2021-04-29 03:45:15,309 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9847494553376906 [2021-04-29 03:45:15,309 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2021-04-29 03:45:15,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2021-04-29 03:45:15,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:15,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2021-04-29 03:45:15,311 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) [2021-04-29 03:45:15,312 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) [2021-04-29 03:45:15,312 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) [2021-04-29 03:45:15,312 INFO L185 Difference]: Start difference. First operand has 189 places, 114 transitions, 1745 flow. Second operand 3 states and 452 transitions. [2021-04-29 03:45:15,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 113 transitions, 1745 flow [2021-04-29 03:45:15,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 113 transitions, 413 flow, removed 666 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:15,339 INFO L241 Difference]: Finished difference. Result has 190 places, 113 transitions, 413 flow [2021-04-29 03:45:15,339 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=413, PETRI_PLACES=190, PETRI_TRANSITIONS=113} [2021-04-29 03:45:15,339 INFO L343 CegarLoopForPetriNet]: 189 programPoint places, 1 predicate places. [2021-04-29 03:45:15,339 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:15,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 113 transitions, 413 flow [2021-04-29 03:45:15,339 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 113 transitions, 413 flow [2021-04-29 03:45:15,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 190 places, 113 transitions, 413 flow [2021-04-29 03:45:15,358 INFO L129 PetriNetUnfolder]: 0/113 cut-off events. [2021-04-29 03:45:15,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:15,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 113 events. 0/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 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. [2021-04-29 03:45:15,362 INFO L146 LiptonReduction]: Number of co-enabled transitions 8140 [2021-04-29 03:45:15,372 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:15,373 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:15,373 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-04-29 03:45:15,378 INFO L480 AbstractCegarLoop]: Abstraction has has 190 places, 113 transitions, 413 flow [2021-04-29 03:45:15,379 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) [2021-04-29 03:45:15,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:15,379 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] [2021-04-29 03:45:15,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-04-29 03:45:15,380 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:15,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:15,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1594398209, now seen corresponding path program 1 times [2021-04-29 03:45:15,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:15,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879039624] [2021-04-29 03:45:15,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:15,387 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:15,390 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:15,397 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:15,398 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:15,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-04-29 03:45:15,398 WARN L342 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:15,398 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2021-04-29 03:45:15,440 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:15,441 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:15,441 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:15,441 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:15,442 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:15,442 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:15,442 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:15,442 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:15,442 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:15,442 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:15,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 119 transitions, 1834 flow [2021-04-29 03:45:15,488 INFO L129 PetriNetUnfolder]: 0/233 cut-off events. [2021-04-29 03:45:15,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:15,489 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. [2021-04-29 03:45:15,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 119 transitions, 1834 flow [2021-04-29 03:45:15,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 194 places, 117 transitions, 1830 flow [2021-04-29 03:45:15,491 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:15,492 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 194 places, 117 transitions, 1830 flow [2021-04-29 03:45:15,492 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 194 places, 117 transitions, 1830 flow [2021-04-29 03:45:15,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 194 places, 117 transitions, 1830 flow [2021-04-29 03:45:15,523 INFO L129 PetriNetUnfolder]: 0/155 cut-off events. [2021-04-29 03:45:15,524 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:15,524 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. [2021-04-29 03:45:15,532 INFO L146 LiptonReduction]: Number of co-enabled transitions 8740 [2021-04-29 03:45:19,482 INFO L158 LiptonReduction]: Checked pairs total: 3591 [2021-04-29 03:45:19,482 INFO L160 LiptonReduction]: Total number of compositions: 38 [2021-04-29 03:45:19,483 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3992 [2021-04-29 03:45:19,485 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:45:19,485 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:19,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:19,486 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:19,486 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:19,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:19,486 INFO L82 PathProgramCache]: Analyzing trace with hash 100771, now seen corresponding path program 1 times [2021-04-29 03:45:19,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:19,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079246123] [2021-04-29 03:45:19,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:19,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:19,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:19,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079246123] [2021-04-29 03:45:19,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:19,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:19,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224323904] [2021-04-29 03:45:19,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:19,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:19,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:19,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:19,500 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 157 [2021-04-29 03:45:19,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 117 transitions, 1830 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) [2021-04-29 03:45:19,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:19,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 157 [2021-04-29 03:45:19,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:19,532 INFO L129 PetriNetUnfolder]: 0/116 cut-off events. [2021-04-29 03:45:19,532 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:19,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 116 events. 0/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 222 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. [2021-04-29 03:45:19,533 INFO L132 encePairwiseOnDemand]: 155/157 looper letters, 0 selfloop transitions, 1 changer transitions 0/116 dead transitions. [2021-04-29 03:45:19,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 116 transitions, 1830 flow [2021-04-29 03:45:19,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:19,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:19,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2021-04-29 03:45:19,535 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9851380042462845 [2021-04-29 03:45:19,535 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 464 transitions. [2021-04-29 03:45:19,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 464 transitions. [2021-04-29 03:45:19,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:19,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 464 transitions. [2021-04-29 03:45:19,536 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) [2021-04-29 03:45:19,538 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) [2021-04-29 03:45:19,538 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) [2021-04-29 03:45:19,538 INFO L185 Difference]: Start difference. First operand has 194 places, 117 transitions, 1830 flow. Second operand 3 states and 464 transitions. [2021-04-29 03:45:19,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 116 transitions, 1830 flow [2021-04-29 03:45:19,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 116 transitions, 424 flow, removed 703 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:19,558 INFO L241 Difference]: Finished difference. Result has 195 places, 116 transitions, 424 flow [2021-04-29 03:45:19,559 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=193, 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=424, PETRI_PLACES=195, PETRI_TRANSITIONS=116} [2021-04-29 03:45:19,559 INFO L343 CegarLoopForPetriNet]: 194 programPoint places, 1 predicate places. [2021-04-29 03:45:19,559 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:19,559 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 195 places, 116 transitions, 424 flow [2021-04-29 03:45:19,559 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 195 places, 116 transitions, 424 flow [2021-04-29 03:45:19,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 195 places, 116 transitions, 424 flow [2021-04-29 03:45:19,575 INFO L129 PetriNetUnfolder]: 0/116 cut-off events. [2021-04-29 03:45:19,575 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:19,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 116 events. 0/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 201 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. [2021-04-29 03:45:19,578 INFO L146 LiptonReduction]: Number of co-enabled transitions 8588 [2021-04-29 03:45:19,587 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:19,587 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:19,587 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-04-29 03:45:19,589 INFO L480 AbstractCegarLoop]: Abstraction has has 195 places, 116 transitions, 424 flow [2021-04-29 03:45:19,589 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) [2021-04-29 03:45:19,589 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:19,589 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:45:19,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-04-29 03:45:19,589 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:19,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:19,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1021538209, now seen corresponding path program 1 times [2021-04-29 03:45:19,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:19,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220644256] [2021-04-29 03:45:19,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:19,598 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:19,601 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:19,608 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:19,608 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:19,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-04-29 03:45:19,608 WARN L342 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:19,608 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2021-04-29 03:45:19,653 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:19,654 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:19,654 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:19,654 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:19,655 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:19,655 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:19,655 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:19,655 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:19,655 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:19,655 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:19,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 201 places, 122 transitions, 1921 flow [2021-04-29 03:45:19,697 INFO L129 PetriNetUnfolder]: 0/239 cut-off events. [2021-04-29 03:45:19,697 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:19,697 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. [2021-04-29 03:45:19,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 122 transitions, 1921 flow [2021-04-29 03:45:19,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 120 transitions, 1917 flow [2021-04-29 03:45:19,809 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:19,809 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 120 transitions, 1917 flow [2021-04-29 03:45:19,810 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 120 transitions, 1917 flow [2021-04-29 03:45:19,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 199 places, 120 transitions, 1917 flow [2021-04-29 03:45:19,838 INFO L129 PetriNetUnfolder]: 0/159 cut-off events. [2021-04-29 03:45:19,838 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:19,838 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. [2021-04-29 03:45:19,846 INFO L146 LiptonReduction]: Number of co-enabled transitions 9204 [2021-04-29 03:45:24,050 INFO L158 LiptonReduction]: Checked pairs total: 3783 [2021-04-29 03:45:24,051 INFO L160 LiptonReduction]: Total number of compositions: 39 [2021-04-29 03:45:24,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4242 [2021-04-29 03:45:24,054 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:45:24,054 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:24,054 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:24,054 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:24,055 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:24,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:24,055 INFO L82 PathProgramCache]: Analyzing trace with hash 105891, now seen corresponding path program 1 times [2021-04-29 03:45:24,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:24,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586937845] [2021-04-29 03:45:24,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:24,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:24,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:24,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586937845] [2021-04-29 03:45:24,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:24,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:24,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369007556] [2021-04-29 03:45:24,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:24,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:24,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:24,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:24,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 161 [2021-04-29 03:45:24,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 120 transitions, 1917 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) [2021-04-29 03:45:24,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:24,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 161 [2021-04-29 03:45:24,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:24,094 INFO L129 PetriNetUnfolder]: 0/119 cut-off events. [2021-04-29 03:45:24,094 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:24,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 119 events. 0/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 231 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. [2021-04-29 03:45:24,095 INFO L132 encePairwiseOnDemand]: 159/161 looper letters, 0 selfloop transitions, 1 changer transitions 0/119 dead transitions. [2021-04-29 03:45:24,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 119 transitions, 1917 flow [2021-04-29 03:45:24,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:24,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2021-04-29 03:45:24,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9855072463768116 [2021-04-29 03:45:24,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2021-04-29 03:45:24,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2021-04-29 03:45:24,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:24,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2021-04-29 03:45:24,098 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) [2021-04-29 03:45:24,100 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) [2021-04-29 03:45:24,100 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) [2021-04-29 03:45:24,100 INFO L185 Difference]: Start difference. First operand has 199 places, 120 transitions, 1917 flow. Second operand 3 states and 476 transitions. [2021-04-29 03:45:24,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 119 transitions, 1917 flow [2021-04-29 03:45:24,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 119 transitions, 435 flow, removed 741 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:24,122 INFO L241 Difference]: Finished difference. Result has 200 places, 119 transitions, 435 flow [2021-04-29 03:45:24,122 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=435, PETRI_PLACES=200, PETRI_TRANSITIONS=119} [2021-04-29 03:45:24,123 INFO L343 CegarLoopForPetriNet]: 199 programPoint places, 1 predicate places. [2021-04-29 03:45:24,123 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:24,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 119 transitions, 435 flow [2021-04-29 03:45:24,123 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 119 transitions, 435 flow [2021-04-29 03:45:24,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 119 transitions, 435 flow [2021-04-29 03:45:24,137 INFO L129 PetriNetUnfolder]: 0/119 cut-off events. [2021-04-29 03:45:24,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:24,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 119 events. 0/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 242 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. [2021-04-29 03:45:24,140 INFO L146 LiptonReduction]: Number of co-enabled transitions 9048 [2021-04-29 03:45:24,148 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:24,148 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:24,149 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-29 03:45:24,150 INFO L480 AbstractCegarLoop]: Abstraction has has 200 places, 119 transitions, 435 flow [2021-04-29 03:45:24,151 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) [2021-04-29 03:45:24,151 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:24,151 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:45:24,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-04-29 03:45:24,151 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:24,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:24,151 INFO L82 PathProgramCache]: Analyzing trace with hash 131279706, now seen corresponding path program 1 times [2021-04-29 03:45:24,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:24,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704290486] [2021-04-29 03:45:24,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:24,159 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:24,163 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:24,169 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:24,169 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:24,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-04-29 03:45:24,169 WARN L342 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:24,169 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2021-04-29 03:45:24,216 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:24,216 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:24,217 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:24,217 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:24,217 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:24,217 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:24,217 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:24,217 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:24,217 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:24,217 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:24,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 206 places, 125 transitions, 2010 flow [2021-04-29 03:45:24,260 INFO L129 PetriNetUnfolder]: 0/245 cut-off events. [2021-04-29 03:45:24,260 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:24,260 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. [2021-04-29 03:45:24,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 125 transitions, 2010 flow [2021-04-29 03:45:24,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 123 transitions, 2006 flow [2021-04-29 03:45:24,261 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:24,262 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 123 transitions, 2006 flow [2021-04-29 03:45:24,262 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 123 transitions, 2006 flow [2021-04-29 03:45:24,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 123 transitions, 2006 flow [2021-04-29 03:45:24,296 INFO L129 PetriNetUnfolder]: 0/163 cut-off events. [2021-04-29 03:45:24,297 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:24,297 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. [2021-04-29 03:45:24,305 INFO L146 LiptonReduction]: Number of co-enabled transitions 9680 [2021-04-29 03:45:29,080 INFO L158 LiptonReduction]: Checked pairs total: 3980 [2021-04-29 03:45:29,080 INFO L160 LiptonReduction]: Total number of compositions: 40 [2021-04-29 03:45:29,080 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4819 [2021-04-29 03:45:29,083 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:45:29,083 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:29,083 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:29,083 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:29,083 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:29,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:29,084 INFO L82 PathProgramCache]: Analyzing trace with hash 111139, now seen corresponding path program 1 times [2021-04-29 03:45:29,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:29,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696897876] [2021-04-29 03:45:29,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:29,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:29,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:29,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696897876] [2021-04-29 03:45:29,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:29,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:29,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166727203] [2021-04-29 03:45:29,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:29,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:29,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:29,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:29,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 165 [2021-04-29 03:45:29,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 123 transitions, 2006 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) [2021-04-29 03:45:29,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:29,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 165 [2021-04-29 03:45:29,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:29,133 INFO L129 PetriNetUnfolder]: 0/122 cut-off events. [2021-04-29 03:45:29,133 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:29,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 122 events. 0/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 210 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. [2021-04-29 03:45:29,134 INFO L132 encePairwiseOnDemand]: 163/165 looper letters, 0 selfloop transitions, 1 changer transitions 0/122 dead transitions. [2021-04-29 03:45:29,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 122 transitions, 2006 flow [2021-04-29 03:45:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:29,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:29,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 488 transitions. [2021-04-29 03:45:29,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9858585858585859 [2021-04-29 03:45:29,135 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 488 transitions. [2021-04-29 03:45:29,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 488 transitions. [2021-04-29 03:45:29,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:29,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 488 transitions. [2021-04-29 03:45:29,137 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) [2021-04-29 03:45:29,138 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) [2021-04-29 03:45:29,138 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) [2021-04-29 03:45:29,138 INFO L185 Difference]: Start difference. First operand has 204 places, 123 transitions, 2006 flow. Second operand 3 states and 488 transitions. [2021-04-29 03:45:29,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 122 transitions, 2006 flow [2021-04-29 03:45:29,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 122 transitions, 446 flow, removed 780 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:29,175 INFO L241 Difference]: Finished difference. Result has 205 places, 122 transitions, 446 flow [2021-04-29 03:45:29,176 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=203, 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=446, PETRI_PLACES=205, PETRI_TRANSITIONS=122} [2021-04-29 03:45:29,176 INFO L343 CegarLoopForPetriNet]: 204 programPoint places, 1 predicate places. [2021-04-29 03:45:29,176 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:29,176 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 122 transitions, 446 flow [2021-04-29 03:45:29,176 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 122 transitions, 446 flow [2021-04-29 03:45:29,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 205 places, 122 transitions, 446 flow [2021-04-29 03:45:29,192 INFO L129 PetriNetUnfolder]: 0/122 cut-off events. [2021-04-29 03:45:29,193 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:29,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 122 events. 0/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 269 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. [2021-04-29 03:45:29,196 INFO L146 LiptonReduction]: Number of co-enabled transitions 9520 [2021-04-29 03:45:29,208 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:29,209 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:29,209 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-29 03:45:29,211 INFO L480 AbstractCegarLoop]: Abstraction has has 205 places, 122 transitions, 446 flow [2021-04-29 03:45:29,212 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) [2021-04-29 03:45:29,212 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:29,212 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] [2021-04-29 03:45:29,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-04-29 03:45:29,212 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:29,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:29,213 INFO L82 PathProgramCache]: Analyzing trace with hash -92914844, now seen corresponding path program 1 times [2021-04-29 03:45:29,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:29,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003410377] [2021-04-29 03:45:29,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:29,222 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:29,225 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:29,232 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:29,232 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:29,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-04-29 03:45:29,232 WARN L342 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:29,232 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2021-04-29 03:45:29,281 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:29,281 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:29,282 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:29,282 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:29,282 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:29,282 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:29,282 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:29,283 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:29,283 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:29,283 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:29,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 211 places, 128 transitions, 2101 flow [2021-04-29 03:45:29,337 INFO L129 PetriNetUnfolder]: 0/251 cut-off events. [2021-04-29 03:45:29,338 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:29,338 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. [2021-04-29 03:45:29,338 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 128 transitions, 2101 flow [2021-04-29 03:45:29,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 126 transitions, 2097 flow [2021-04-29 03:45:29,340 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:29,341 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 126 transitions, 2097 flow [2021-04-29 03:45:29,341 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 126 transitions, 2097 flow [2021-04-29 03:45:29,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 209 places, 126 transitions, 2097 flow [2021-04-29 03:45:29,374 INFO L129 PetriNetUnfolder]: 0/167 cut-off events. [2021-04-29 03:45:29,374 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:29,374 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. [2021-04-29 03:45:29,387 INFO L146 LiptonReduction]: Number of co-enabled transitions 10168 [2021-04-29 03:45:34,233 INFO L158 LiptonReduction]: Checked pairs total: 4182 [2021-04-29 03:45:34,234 INFO L160 LiptonReduction]: Total number of compositions: 41 [2021-04-29 03:45:34,234 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4894 [2021-04-29 03:45:34,236 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:45:34,236 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:34,237 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:34,237 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:34,237 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:34,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:34,237 INFO L82 PathProgramCache]: Analyzing trace with hash 116515, now seen corresponding path program 1 times [2021-04-29 03:45:34,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:34,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224626997] [2021-04-29 03:45:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:34,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:34,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:34,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224626997] [2021-04-29 03:45:34,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:34,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:34,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546170394] [2021-04-29 03:45:34,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:34,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:34,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:34,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:34,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 169 [2021-04-29 03:45:34,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 126 transitions, 2097 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) [2021-04-29 03:45:34,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:34,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 169 [2021-04-29 03:45:34,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:34,287 INFO L129 PetriNetUnfolder]: 0/125 cut-off events. [2021-04-29 03:45:34,287 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:34,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1112 conditions, 125 events. 0/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 237 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. [2021-04-29 03:45:34,288 INFO L132 encePairwiseOnDemand]: 167/169 looper letters, 0 selfloop transitions, 1 changer transitions 0/125 dead transitions. [2021-04-29 03:45:34,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 125 transitions, 2097 flow [2021-04-29 03:45:34,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:34,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2021-04-29 03:45:34,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9861932938856016 [2021-04-29 03:45:34,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 500 transitions. [2021-04-29 03:45:34,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 500 transitions. [2021-04-29 03:45:34,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:34,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 500 transitions. [2021-04-29 03:45:34,291 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) [2021-04-29 03:45:34,292 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) [2021-04-29 03:45:34,292 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) [2021-04-29 03:45:34,292 INFO L185 Difference]: Start difference. First operand has 209 places, 126 transitions, 2097 flow. Second operand 3 states and 500 transitions. [2021-04-29 03:45:34,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 125 transitions, 2097 flow [2021-04-29 03:45:34,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 125 transitions, 457 flow, removed 820 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:34,329 INFO L241 Difference]: Finished difference. Result has 210 places, 125 transitions, 457 flow [2021-04-29 03:45:34,329 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=457, PETRI_PLACES=210, PETRI_TRANSITIONS=125} [2021-04-29 03:45:34,329 INFO L343 CegarLoopForPetriNet]: 209 programPoint places, 1 predicate places. [2021-04-29 03:45:34,329 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:34,330 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 125 transitions, 457 flow [2021-04-29 03:45:34,330 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 125 transitions, 457 flow [2021-04-29 03:45:34,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 125 transitions, 457 flow [2021-04-29 03:45:34,353 INFO L129 PetriNetUnfolder]: 0/125 cut-off events. [2021-04-29 03:45:34,353 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:34,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 125 events. 0/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 254 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. [2021-04-29 03:45:34,358 INFO L146 LiptonReduction]: Number of co-enabled transitions 10004 [2021-04-29 03:45:34,371 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:34,372 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:34,372 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-29 03:45:34,374 INFO L480 AbstractCegarLoop]: Abstraction has has 210 places, 125 transitions, 457 flow [2021-04-29 03:45:34,375 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) [2021-04-29 03:45:34,375 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:34,375 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] [2021-04-29 03:45:34,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-04-29 03:45:34,375 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:34,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:34,376 INFO L82 PathProgramCache]: Analyzing trace with hash -2062937915, now seen corresponding path program 1 times [2021-04-29 03:45:34,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:34,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197812851] [2021-04-29 03:45:34,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:34,386 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:34,389 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:34,396 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:34,396 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:34,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-04-29 03:45:34,397 WARN L342 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:34,397 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2021-04-29 03:45:34,454 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:34,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:34,455 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:34,455 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:34,455 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:34,455 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:34,455 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:34,455 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:34,455 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:34,455 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:34,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 216 places, 131 transitions, 2194 flow [2021-04-29 03:45:34,517 INFO L129 PetriNetUnfolder]: 0/257 cut-off events. [2021-04-29 03:45:34,518 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:34,518 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. [2021-04-29 03:45:34,518 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 131 transitions, 2194 flow [2021-04-29 03:45:34,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 129 transitions, 2190 flow [2021-04-29 03:45:34,521 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:34,521 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 214 places, 129 transitions, 2190 flow [2021-04-29 03:45:34,521 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 214 places, 129 transitions, 2190 flow [2021-04-29 03:45:34,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 129 transitions, 2190 flow [2021-04-29 03:45:34,572 INFO L129 PetriNetUnfolder]: 0/171 cut-off events. [2021-04-29 03:45:34,573 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:34,573 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. [2021-04-29 03:45:34,590 INFO L146 LiptonReduction]: Number of co-enabled transitions 10668 [2021-04-29 03:45:39,636 INFO L158 LiptonReduction]: Checked pairs total: 4389 [2021-04-29 03:45:39,636 INFO L160 LiptonReduction]: Total number of compositions: 42 [2021-04-29 03:45:39,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5116 [2021-04-29 03:45:39,640 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:45:39,640 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:39,640 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:39,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:39,640 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:39,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:39,640 INFO L82 PathProgramCache]: Analyzing trace with hash 122019, now seen corresponding path program 1 times [2021-04-29 03:45:39,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:39,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708387321] [2021-04-29 03:45:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:39,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:39,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:39,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:39,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708387321] [2021-04-29 03:45:39,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:39,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:39,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582788358] [2021-04-29 03:45:39,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:39,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:39,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:39,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:39,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 173 [2021-04-29 03:45:39,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 129 transitions, 2190 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) [2021-04-29 03:45:39,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:39,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 173 [2021-04-29 03:45:39,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:39,690 INFO L129 PetriNetUnfolder]: 0/128 cut-off events. [2021-04-29 03:45:39,690 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:39,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 128 events. 0/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 264 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. [2021-04-29 03:45:39,691 INFO L132 encePairwiseOnDemand]: 171/173 looper letters, 0 selfloop transitions, 1 changer transitions 0/128 dead transitions. [2021-04-29 03:45:39,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 128 transitions, 2190 flow [2021-04-29 03:45:39,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:39,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2021-04-29 03:45:39,692 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9865125240847784 [2021-04-29 03:45:39,692 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2021-04-29 03:45:39,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2021-04-29 03:45:39,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:39,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2021-04-29 03:45:39,694 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) [2021-04-29 03:45:39,695 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) [2021-04-29 03:45:39,695 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) [2021-04-29 03:45:39,696 INFO L185 Difference]: Start difference. First operand has 214 places, 129 transitions, 2190 flow. Second operand 3 states and 512 transitions. [2021-04-29 03:45:39,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 128 transitions, 2190 flow [2021-04-29 03:45:39,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 128 transitions, 468 flow, removed 861 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:39,746 INFO L241 Difference]: Finished difference. Result has 215 places, 128 transitions, 468 flow [2021-04-29 03:45:39,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=213, 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=468, PETRI_PLACES=215, PETRI_TRANSITIONS=128} [2021-04-29 03:45:39,746 INFO L343 CegarLoopForPetriNet]: 214 programPoint places, 1 predicate places. [2021-04-29 03:45:39,746 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:39,747 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 128 transitions, 468 flow [2021-04-29 03:45:39,747 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 128 transitions, 468 flow [2021-04-29 03:45:39,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 215 places, 128 transitions, 468 flow [2021-04-29 03:45:39,772 INFO L129 PetriNetUnfolder]: 0/128 cut-off events. [2021-04-29 03:45:39,772 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:39,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 128 events. 0/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 279 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. [2021-04-29 03:45:39,778 INFO L146 LiptonReduction]: Number of co-enabled transitions 10500 [2021-04-29 03:45:39,792 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:39,792 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:39,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-04-29 03:45:39,795 INFO L480 AbstractCegarLoop]: Abstraction has has 215 places, 128 transitions, 468 flow [2021-04-29 03:45:39,795 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) [2021-04-29 03:45:39,795 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:39,796 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] [2021-04-29 03:45:39,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-04-29 03:45:39,796 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:39,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:39,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1248466727, now seen corresponding path program 1 times [2021-04-29 03:45:39,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:39,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526703521] [2021-04-29 03:45:39,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:39,805 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:39,809 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:39,816 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:39,816 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:39,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-04-29 03:45:39,817 WARN L342 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:39,817 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2021-04-29 03:45:39,871 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:39,872 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:39,872 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:39,872 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:39,872 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:39,873 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:39,873 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:39,873 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:39,873 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:39,873 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:39,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 134 transitions, 2289 flow [2021-04-29 03:45:39,935 INFO L129 PetriNetUnfolder]: 0/263 cut-off events. [2021-04-29 03:45:39,936 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:39,936 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. [2021-04-29 03:45:39,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 134 transitions, 2289 flow [2021-04-29 03:45:39,938 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 132 transitions, 2285 flow [2021-04-29 03:45:39,938 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:39,939 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 132 transitions, 2285 flow [2021-04-29 03:45:39,939 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 132 transitions, 2285 flow [2021-04-29 03:45:39,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 219 places, 132 transitions, 2285 flow [2021-04-29 03:45:39,989 INFO L129 PetriNetUnfolder]: 0/175 cut-off events. [2021-04-29 03:45:39,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:39,989 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. [2021-04-29 03:45:40,005 INFO L146 LiptonReduction]: Number of co-enabled transitions 11180 [2021-04-29 03:45:45,555 INFO L158 LiptonReduction]: Checked pairs total: 4601 [2021-04-29 03:45:45,555 INFO L160 LiptonReduction]: Total number of compositions: 43 [2021-04-29 03:45:45,555 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5617 [2021-04-29 03:45:45,558 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:45:45,559 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:45,559 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:45,559 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:45,559 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:45,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:45,559 INFO L82 PathProgramCache]: Analyzing trace with hash 127651, now seen corresponding path program 1 times [2021-04-29 03:45:45,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:45,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828266150] [2021-04-29 03:45:45,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:45,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:45,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:45,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:45,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828266150] [2021-04-29 03:45:45,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:45,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:45,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236527665] [2021-04-29 03:45:45,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:45,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:45,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:45,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:45,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 177 [2021-04-29 03:45:45,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 132 transitions, 2285 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) [2021-04-29 03:45:45,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:45,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 177 [2021-04-29 03:45:45,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:45,614 INFO L129 PetriNetUnfolder]: 0/131 cut-off events. [2021-04-29 03:45:45,614 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:45,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1209 conditions, 131 events. 0/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 249 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. [2021-04-29 03:45:45,615 INFO L132 encePairwiseOnDemand]: 175/177 looper letters, 0 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2021-04-29 03:45:45,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 131 transitions, 2285 flow [2021-04-29 03:45:45,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2021-04-29 03:45:45,617 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9868173258003766 [2021-04-29 03:45:45,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2021-04-29 03:45:45,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2021-04-29 03:45:45,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:45,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2021-04-29 03:45:45,618 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) [2021-04-29 03:45:45,620 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) [2021-04-29 03:45:45,620 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) [2021-04-29 03:45:45,620 INFO L185 Difference]: Start difference. First operand has 219 places, 132 transitions, 2285 flow. Second operand 3 states and 524 transitions. [2021-04-29 03:45:45,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 131 transitions, 2285 flow [2021-04-29 03:45:45,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 131 transitions, 479 flow, removed 903 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:45,678 INFO L241 Difference]: Finished difference. Result has 220 places, 131 transitions, 479 flow [2021-04-29 03:45:45,679 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=479, PETRI_PLACES=220, PETRI_TRANSITIONS=131} [2021-04-29 03:45:45,679 INFO L343 CegarLoopForPetriNet]: 219 programPoint places, 1 predicate places. [2021-04-29 03:45:45,679 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:45,679 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 131 transitions, 479 flow [2021-04-29 03:45:45,679 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 131 transitions, 479 flow [2021-04-29 03:45:45,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 220 places, 131 transitions, 479 flow [2021-04-29 03:45:45,703 INFO L129 PetriNetUnfolder]: 0/131 cut-off events. [2021-04-29 03:45:45,703 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:45,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 131 events. 0/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 240 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. [2021-04-29 03:45:45,707 INFO L146 LiptonReduction]: Number of co-enabled transitions 11008 [2021-04-29 03:45:45,717 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:45,717 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:45,717 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-29 03:45:45,720 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 131 transitions, 479 flow [2021-04-29 03:45:45,721 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) [2021-04-29 03:45:45,721 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:45,721 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] [2021-04-29 03:45:45,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-04-29 03:45:45,721 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:45,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:45,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1295684672, now seen corresponding path program 1 times [2021-04-29 03:45:45,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:45,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963547739] [2021-04-29 03:45:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:45,730 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:45,734 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:45,740 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:45,741 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:45,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-04-29 03:45:45,741 WARN L342 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:45,741 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2021-04-29 03:45:45,799 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:45,800 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:45,801 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:45,801 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:45,801 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:45,801 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:45,801 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:45,801 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:45,801 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:45,801 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:45,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 226 places, 137 transitions, 2386 flow [2021-04-29 03:45:45,844 INFO L129 PetriNetUnfolder]: 0/269 cut-off events. [2021-04-29 03:45:45,844 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:45,844 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. [2021-04-29 03:45:45,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 137 transitions, 2386 flow [2021-04-29 03:45:45,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 135 transitions, 2382 flow [2021-04-29 03:45:45,846 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:45,846 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 135 transitions, 2382 flow [2021-04-29 03:45:45,846 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 135 transitions, 2382 flow [2021-04-29 03:45:45,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 135 transitions, 2382 flow [2021-04-29 03:45:45,880 INFO L129 PetriNetUnfolder]: 0/179 cut-off events. [2021-04-29 03:45:45,880 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:45,880 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. [2021-04-29 03:45:45,895 INFO L146 LiptonReduction]: Number of co-enabled transitions 11704 [2021-04-29 03:45:52,008 INFO L158 LiptonReduction]: Checked pairs total: 4818 [2021-04-29 03:45:52,008 INFO L160 LiptonReduction]: Total number of compositions: 44 [2021-04-29 03:45:52,008 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6162 [2021-04-29 03:45:52,011 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:45:52,011 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:52,011 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:52,011 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:52,011 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:52,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:52,012 INFO L82 PathProgramCache]: Analyzing trace with hash 133411, now seen corresponding path program 1 times [2021-04-29 03:45:52,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:52,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17249261] [2021-04-29 03:45:52,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:52,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:52,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:52,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17249261] [2021-04-29 03:45:52,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:52,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:52,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187174739] [2021-04-29 03:45:52,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:52,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:52,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:52,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:52,026 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 181 [2021-04-29 03:45:52,027 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 135 transitions, 2382 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) [2021-04-29 03:45:52,027 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:52,027 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 181 [2021-04-29 03:45:52,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:52,081 INFO L129 PetriNetUnfolder]: 0/134 cut-off events. [2021-04-29 03:45:52,081 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:52,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 134 events. 0/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 234 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. [2021-04-29 03:45:52,082 INFO L132 encePairwiseOnDemand]: 179/181 looper letters, 0 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2021-04-29 03:45:52,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 134 transitions, 2382 flow [2021-04-29 03:45:52,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:52,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:52,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2021-04-29 03:45:52,083 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9871086556169429 [2021-04-29 03:45:52,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2021-04-29 03:45:52,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2021-04-29 03:45:52,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:52,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2021-04-29 03:45:52,085 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) [2021-04-29 03:45:52,086 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) [2021-04-29 03:45:52,087 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) [2021-04-29 03:45:52,087 INFO L185 Difference]: Start difference. First operand has 224 places, 135 transitions, 2382 flow. Second operand 3 states and 536 transitions. [2021-04-29 03:45:52,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 134 transitions, 2382 flow [2021-04-29 03:45:52,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 134 transitions, 490 flow, removed 946 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:52,166 INFO L241 Difference]: Finished difference. Result has 225 places, 134 transitions, 490 flow [2021-04-29 03:45:52,166 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=223, 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=490, PETRI_PLACES=225, PETRI_TRANSITIONS=134} [2021-04-29 03:45:52,166 INFO L343 CegarLoopForPetriNet]: 224 programPoint places, 1 predicate places. [2021-04-29 03:45:52,166 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:52,166 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 134 transitions, 490 flow [2021-04-29 03:45:52,167 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 134 transitions, 490 flow [2021-04-29 03:45:52,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 134 transitions, 490 flow [2021-04-29 03:45:52,193 INFO L129 PetriNetUnfolder]: 0/134 cut-off events. [2021-04-29 03:45:52,194 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:52,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 134 events. 0/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 283 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. [2021-04-29 03:45:52,199 INFO L146 LiptonReduction]: Number of co-enabled transitions 11528 [2021-04-29 03:45:52,215 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:52,216 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:52,216 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-04-29 03:45:52,219 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 134 transitions, 490 flow [2021-04-29 03:45:52,220 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) [2021-04-29 03:45:52,220 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:52,220 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] [2021-04-29 03:45:52,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-04-29 03:45:52,220 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:52,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:52,220 INFO L82 PathProgramCache]: Analyzing trace with hash -199292694, now seen corresponding path program 1 times [2021-04-29 03:45:52,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:52,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746016817] [2021-04-29 03:45:52,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:52,235 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:52,238 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:52,250 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:52,250 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:52,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-04-29 03:45:52,250 WARN L342 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:52,250 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2021-04-29 03:45:52,336 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:52,336 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:52,337 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:52,337 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:52,337 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:52,337 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:52,338 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:52,338 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:52,338 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:52,338 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:52,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 231 places, 140 transitions, 2485 flow [2021-04-29 03:45:52,406 INFO L129 PetriNetUnfolder]: 0/275 cut-off events. [2021-04-29 03:45:52,406 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:52,406 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. [2021-04-29 03:45:52,406 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 140 transitions, 2485 flow [2021-04-29 03:45:52,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 138 transitions, 2481 flow [2021-04-29 03:45:52,409 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:52,409 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 138 transitions, 2481 flow [2021-04-29 03:45:52,409 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 138 transitions, 2481 flow [2021-04-29 03:45:52,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 138 transitions, 2481 flow [2021-04-29 03:45:52,462 INFO L129 PetriNetUnfolder]: 0/183 cut-off events. [2021-04-29 03:45:52,462 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:52,462 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. [2021-04-29 03:45:52,478 INFO L146 LiptonReduction]: Number of co-enabled transitions 12240 [2021-04-29 03:45:58,559 INFO L158 LiptonReduction]: Checked pairs total: 5040 [2021-04-29 03:45:58,560 INFO L160 LiptonReduction]: Total number of compositions: 45 [2021-04-29 03:45:58,560 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6151 [2021-04-29 03:45:58,562 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:45:58,562 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:58,563 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:58,563 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:45:58,563 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:58,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:58,563 INFO L82 PathProgramCache]: Analyzing trace with hash 139299, now seen corresponding path program 1 times [2021-04-29 03:45:58,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:58,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954933298] [2021-04-29 03:45:58,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:45:58,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:45:58,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:45:58,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:45:58,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954933298] [2021-04-29 03:45:58,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:45:58,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:45:58,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564715045] [2021-04-29 03:45:58,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:45:58,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:45:58,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:45:58,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:45:58,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 185 [2021-04-29 03:45:58,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 138 transitions, 2481 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) [2021-04-29 03:45:58,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:45:58,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 185 [2021-04-29 03:45:58,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:45:58,618 INFO L129 PetriNetUnfolder]: 0/137 cut-off events. [2021-04-29 03:45:58,618 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:58,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1310 conditions, 137 events. 0/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 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. [2021-04-29 03:45:58,619 INFO L132 encePairwiseOnDemand]: 183/185 looper letters, 0 selfloop transitions, 1 changer transitions 0/137 dead transitions. [2021-04-29 03:45:58,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 137 transitions, 2481 flow [2021-04-29 03:45:58,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:45:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:45:58,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2021-04-29 03:45:58,620 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9873873873873874 [2021-04-29 03:45:58,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2021-04-29 03:45:58,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2021-04-29 03:45:58,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:45:58,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2021-04-29 03:45:58,621 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) [2021-04-29 03:45:58,622 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) [2021-04-29 03:45:58,623 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) [2021-04-29 03:45:58,623 INFO L185 Difference]: Start difference. First operand has 229 places, 138 transitions, 2481 flow. Second operand 3 states and 548 transitions. [2021-04-29 03:45:58,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 137 transitions, 2481 flow [2021-04-29 03:45:58,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 137 transitions, 501 flow, removed 990 selfloop flow, removed 0 redundant places. [2021-04-29 03:45:58,688 INFO L241 Difference]: Finished difference. Result has 230 places, 137 transitions, 501 flow [2021-04-29 03:45:58,688 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=501, PETRI_PLACES=230, PETRI_TRANSITIONS=137} [2021-04-29 03:45:58,688 INFO L343 CegarLoopForPetriNet]: 229 programPoint places, 1 predicate places. [2021-04-29 03:45:58,688 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:58,689 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 137 transitions, 501 flow [2021-04-29 03:45:58,689 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 137 transitions, 501 flow [2021-04-29 03:45:58,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 230 places, 137 transitions, 501 flow [2021-04-29 03:45:58,708 INFO L129 PetriNetUnfolder]: 0/137 cut-off events. [2021-04-29 03:45:58,709 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:58,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 137 events. 0/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 285 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. [2021-04-29 03:45:58,713 INFO L146 LiptonReduction]: Number of co-enabled transitions 12060 [2021-04-29 03:45:58,723 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:45:58,723 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:45:58,724 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-04-29 03:45:58,725 INFO L480 AbstractCegarLoop]: Abstraction has has 230 places, 137 transitions, 501 flow [2021-04-29 03:45:58,726 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) [2021-04-29 03:45:58,726 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:45:58,726 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, 1, 1] [2021-04-29 03:45:58,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-04-29 03:45:58,726 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:45:58,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:45:58,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1531564085, now seen corresponding path program 1 times [2021-04-29 03:45:58,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:45:58,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26887569] [2021-04-29 03:45:58,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:45:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:58,737 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:45:58,740 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:45:58,747 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:45:58,747 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:45:58,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-04-29 03:45:58,747 WARN L342 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:45:58,748 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2021-04-29 03:45:58,808 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:45:58,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:45:58,809 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:45:58,809 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:45:58,809 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:45:58,809 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:45:58,809 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:45:58,809 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:45:58,810 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:45:58,810 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:45:58,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 236 places, 143 transitions, 2586 flow [2021-04-29 03:45:58,866 INFO L129 PetriNetUnfolder]: 0/281 cut-off events. [2021-04-29 03:45:58,866 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:58,866 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. [2021-04-29 03:45:58,867 INFO L82 GeneralOperation]: Start removeDead. Operand has 236 places, 143 transitions, 2586 flow [2021-04-29 03:45:58,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 141 transitions, 2582 flow [2021-04-29 03:45:58,869 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:45:58,869 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 141 transitions, 2582 flow [2021-04-29 03:45:58,869 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 141 transitions, 2582 flow [2021-04-29 03:45:58,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 234 places, 141 transitions, 2582 flow [2021-04-29 03:45:58,910 INFO L129 PetriNetUnfolder]: 0/187 cut-off events. [2021-04-29 03:45:58,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:45:58,910 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. [2021-04-29 03:45:58,921 INFO L146 LiptonReduction]: Number of co-enabled transitions 12788 [2021-04-29 03:46:05,248 INFO L158 LiptonReduction]: Checked pairs total: 5267 [2021-04-29 03:46:05,248 INFO L160 LiptonReduction]: Total number of compositions: 46 [2021-04-29 03:46:05,249 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6380 [2021-04-29 03:46:05,252 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:46:05,252 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:05,252 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:05,252 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:46:05,252 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:05,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:05,253 INFO L82 PathProgramCache]: Analyzing trace with hash 145315, now seen corresponding path program 1 times [2021-04-29 03:46:05,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:05,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464625001] [2021-04-29 03:46:05,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:46:05,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:46:05,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:46:05,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:46:05,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464625001] [2021-04-29 03:46:05,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:46:05,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:46:05,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453162802] [2021-04-29 03:46:05,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:46:05,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:46:05,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:46:05,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:46:05,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 189 [2021-04-29 03:46:05,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 141 transitions, 2582 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) [2021-04-29 03:46:05,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:46:05,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 189 [2021-04-29 03:46:05,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:46:05,324 INFO L129 PetriNetUnfolder]: 0/140 cut-off events. [2021-04-29 03:46:05,324 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:05,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 140 events. 0/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 270 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. [2021-04-29 03:46:05,325 INFO L132 encePairwiseOnDemand]: 187/189 looper letters, 0 selfloop transitions, 1 changer transitions 0/140 dead transitions. [2021-04-29 03:46:05,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 140 transitions, 2582 flow [2021-04-29 03:46:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:46:05,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:46:05,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2021-04-29 03:46:05,326 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9876543209876543 [2021-04-29 03:46:05,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2021-04-29 03:46:05,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2021-04-29 03:46:05,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:46:05,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2021-04-29 03:46:05,327 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) [2021-04-29 03:46:05,328 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) [2021-04-29 03:46:05,328 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) [2021-04-29 03:46:05,329 INFO L185 Difference]: Start difference. First operand has 234 places, 141 transitions, 2582 flow. Second operand 3 states and 560 transitions. [2021-04-29 03:46:05,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 140 transitions, 2582 flow [2021-04-29 03:46:05,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 140 transitions, 512 flow, removed 1035 selfloop flow, removed 0 redundant places. [2021-04-29 03:46:05,375 INFO L241 Difference]: Finished difference. Result has 235 places, 140 transitions, 512 flow [2021-04-29 03:46:05,375 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=233, 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=512, PETRI_PLACES=235, PETRI_TRANSITIONS=140} [2021-04-29 03:46:05,375 INFO L343 CegarLoopForPetriNet]: 234 programPoint places, 1 predicate places. [2021-04-29 03:46:05,375 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:05,375 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 235 places, 140 transitions, 512 flow [2021-04-29 03:46:05,375 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 235 places, 140 transitions, 512 flow [2021-04-29 03:46:05,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 235 places, 140 transitions, 512 flow [2021-04-29 03:46:05,393 INFO L129 PetriNetUnfolder]: 0/140 cut-off events. [2021-04-29 03:46:05,394 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:05,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 140 events. 0/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 276 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. [2021-04-29 03:46:05,398 INFO L146 LiptonReduction]: Number of co-enabled transitions 12604 [2021-04-29 03:46:05,409 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:46:05,409 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:46:05,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-04-29 03:46:05,411 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 140 transitions, 512 flow [2021-04-29 03:46:05,411 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) [2021-04-29 03:46:05,411 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:05,412 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] [2021-04-29 03:46:05,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-04-29 03:46:05,412 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:05,412 INFO L82 PathProgramCache]: Analyzing trace with hash -790489427, now seen corresponding path program 1 times [2021-04-29 03:46:05,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:05,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063495882] [2021-04-29 03:46:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:05,421 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:05,432 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:05,441 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:46:05,441 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:46:05,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-04-29 03:46:05,441 WARN L342 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:46:05,441 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2021-04-29 03:46:05,509 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:46:05,510 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:46:05,511 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:46:05,511 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:46:05,511 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:46:05,511 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:46:05,511 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:46:05,511 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:46:05,511 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:46:05,511 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:46:05,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 146 transitions, 2689 flow [2021-04-29 03:46:05,559 INFO L129 PetriNetUnfolder]: 0/287 cut-off events. [2021-04-29 03:46:05,559 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:05,560 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. [2021-04-29 03:46:05,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 146 transitions, 2689 flow [2021-04-29 03:46:05,562 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 144 transitions, 2685 flow [2021-04-29 03:46:05,562 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:05,562 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 144 transitions, 2685 flow [2021-04-29 03:46:05,563 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 144 transitions, 2685 flow [2021-04-29 03:46:05,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 144 transitions, 2685 flow [2021-04-29 03:46:05,619 INFO L129 PetriNetUnfolder]: 0/191 cut-off events. [2021-04-29 03:46:05,619 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:05,620 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. [2021-04-29 03:46:05,637 INFO L146 LiptonReduction]: Number of co-enabled transitions 13348 [2021-04-29 03:46:07,645 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-04-29 03:46:12,139 INFO L158 LiptonReduction]: Checked pairs total: 5499 [2021-04-29 03:46:12,139 INFO L160 LiptonReduction]: Total number of compositions: 47 [2021-04-29 03:46:12,139 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6577 [2021-04-29 03:46:12,142 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:46:12,142 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:12,142 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:12,143 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:46:12,143 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:12,143 INFO L82 PathProgramCache]: Analyzing trace with hash 151459, now seen corresponding path program 1 times [2021-04-29 03:46:12,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:12,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770658032] [2021-04-29 03:46:12,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:46:12,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:46:12,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:46:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:46:12,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770658032] [2021-04-29 03:46:12,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:46:12,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:46:12,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575660237] [2021-04-29 03:46:12,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:46:12,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:46:12,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:46:12,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:46:12,157 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 193 [2021-04-29 03:46:12,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 144 transitions, 2685 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) [2021-04-29 03:46:12,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:46:12,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 193 [2021-04-29 03:46:12,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:46:12,200 INFO L129 PetriNetUnfolder]: 0/143 cut-off events. [2021-04-29 03:46:12,200 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:12,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1415 conditions, 143 events. 0/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 255 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. [2021-04-29 03:46:12,201 INFO L132 encePairwiseOnDemand]: 191/193 looper letters, 0 selfloop transitions, 1 changer transitions 0/143 dead transitions. [2021-04-29 03:46:12,201 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 143 transitions, 2685 flow [2021-04-29 03:46:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:46:12,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:46:12,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 572 transitions. [2021-04-29 03:46:12,202 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9879101899827288 [2021-04-29 03:46:12,203 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 572 transitions. [2021-04-29 03:46:12,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 572 transitions. [2021-04-29 03:46:12,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:46:12,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 572 transitions. [2021-04-29 03:46:12,204 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) [2021-04-29 03:46:12,205 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) [2021-04-29 03:46:12,205 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) [2021-04-29 03:46:12,206 INFO L185 Difference]: Start difference. First operand has 239 places, 144 transitions, 2685 flow. Second operand 3 states and 572 transitions. [2021-04-29 03:46:12,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 143 transitions, 2685 flow [2021-04-29 03:46:12,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 143 transitions, 523 flow, removed 1081 selfloop flow, removed 0 redundant places. [2021-04-29 03:46:12,265 INFO L241 Difference]: Finished difference. Result has 240 places, 143 transitions, 523 flow [2021-04-29 03:46:12,265 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=240, PETRI_TRANSITIONS=143} [2021-04-29 03:46:12,265 INFO L343 CegarLoopForPetriNet]: 239 programPoint places, 1 predicate places. [2021-04-29 03:46:12,265 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:12,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 143 transitions, 523 flow [2021-04-29 03:46:12,265 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 143 transitions, 523 flow [2021-04-29 03:46:12,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 143 transitions, 523 flow [2021-04-29 03:46:12,285 INFO L129 PetriNetUnfolder]: 0/143 cut-off events. [2021-04-29 03:46:12,285 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:12,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 143 events. 0/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 277 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. [2021-04-29 03:46:12,290 INFO L146 LiptonReduction]: Number of co-enabled transitions 13160 [2021-04-29 03:46:12,301 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:46:12,301 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:46:12,302 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-04-29 03:46:12,304 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 143 transitions, 523 flow [2021-04-29 03:46:12,304 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) [2021-04-29 03:46:12,304 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:12,305 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:46:12,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-04-29 03:46:12,305 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:12,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1706992282, now seen corresponding path program 1 times [2021-04-29 03:46:12,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:12,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122318158] [2021-04-29 03:46:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:12,316 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:12,319 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:12,327 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:46:12,327 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:46:12,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-04-29 03:46:12,327 WARN L342 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:46:12,327 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2021-04-29 03:46:12,397 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:46:12,398 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:46:12,398 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:46:12,398 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:46:12,399 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:46:12,399 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:46:12,399 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:46:12,399 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:46:12,399 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:46:12,399 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:46:12,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 246 places, 149 transitions, 2794 flow [2021-04-29 03:46:12,475 INFO L129 PetriNetUnfolder]: 0/293 cut-off events. [2021-04-29 03:46:12,476 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:12,476 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. [2021-04-29 03:46:12,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 149 transitions, 2794 flow [2021-04-29 03:46:12,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 244 places, 147 transitions, 2790 flow [2021-04-29 03:46:12,479 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:12,479 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 147 transitions, 2790 flow [2021-04-29 03:46:12,479 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 147 transitions, 2790 flow [2021-04-29 03:46:12,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 244 places, 147 transitions, 2790 flow [2021-04-29 03:46:12,534 INFO L129 PetriNetUnfolder]: 0/195 cut-off events. [2021-04-29 03:46:12,534 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:12,534 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. [2021-04-29 03:46:12,552 INFO L146 LiptonReduction]: Number of co-enabled transitions 13920 [2021-04-29 03:46:19,740 INFO L158 LiptonReduction]: Checked pairs total: 5736 [2021-04-29 03:46:19,740 INFO L160 LiptonReduction]: Total number of compositions: 48 [2021-04-29 03:46:19,740 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7261 [2021-04-29 03:46:19,743 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:46:19,743 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:19,743 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:19,743 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:46:19,743 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:19,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:19,744 INFO L82 PathProgramCache]: Analyzing trace with hash 157731, now seen corresponding path program 1 times [2021-04-29 03:46:19,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:19,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019143015] [2021-04-29 03:46:19,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:46:19,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:46:19,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:46:19,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:46:19,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019143015] [2021-04-29 03:46:19,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:46:19,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:46:19,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741811980] [2021-04-29 03:46:19,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:46:19,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:46:19,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:46:19,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:46:19,760 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 197 [2021-04-29 03:46:19,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 147 transitions, 2790 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) [2021-04-29 03:46:19,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:46:19,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 197 [2021-04-29 03:46:19,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:46:19,798 INFO L129 PetriNetUnfolder]: 0/146 cut-off events. [2021-04-29 03:46:19,798 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:19,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 146 events. 0/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 252 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. [2021-04-29 03:46:19,799 INFO L132 encePairwiseOnDemand]: 195/197 looper letters, 0 selfloop transitions, 1 changer transitions 0/146 dead transitions. [2021-04-29 03:46:19,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 146 transitions, 2790 flow [2021-04-29 03:46:19,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:46:19,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:46:19,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 584 transitions. [2021-04-29 03:46:19,801 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.988155668358714 [2021-04-29 03:46:19,801 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 584 transitions. [2021-04-29 03:46:19,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 584 transitions. [2021-04-29 03:46:19,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:46:19,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 584 transitions. [2021-04-29 03:46:19,802 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) [2021-04-29 03:46:19,803 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) [2021-04-29 03:46:19,804 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) [2021-04-29 03:46:19,804 INFO L185 Difference]: Start difference. First operand has 244 places, 147 transitions, 2790 flow. Second operand 3 states and 584 transitions. [2021-04-29 03:46:19,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 146 transitions, 2790 flow [2021-04-29 03:46:19,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 146 transitions, 534 flow, removed 1128 selfloop flow, removed 0 redundant places. [2021-04-29 03:46:19,879 INFO L241 Difference]: Finished difference. Result has 245 places, 146 transitions, 534 flow [2021-04-29 03:46:19,879 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=243, 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=534, PETRI_PLACES=245, PETRI_TRANSITIONS=146} [2021-04-29 03:46:19,879 INFO L343 CegarLoopForPetriNet]: 244 programPoint places, 1 predicate places. [2021-04-29 03:46:19,879 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:19,879 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 146 transitions, 534 flow [2021-04-29 03:46:19,880 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 146 transitions, 534 flow [2021-04-29 03:46:19,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 245 places, 146 transitions, 534 flow [2021-04-29 03:46:19,911 INFO L129 PetriNetUnfolder]: 0/146 cut-off events. [2021-04-29 03:46:19,911 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:19,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 146 events. 0/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 291 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. [2021-04-29 03:46:19,918 INFO L146 LiptonReduction]: Number of co-enabled transitions 13728 [2021-04-29 03:46:19,935 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:46:19,936 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:46:19,936 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-04-29 03:46:19,939 INFO L480 AbstractCegarLoop]: Abstraction has has 245 places, 146 transitions, 534 flow [2021-04-29 03:46:19,940 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) [2021-04-29 03:46:19,940 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:19,940 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] [2021-04-29 03:46:19,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-04-29 03:46:19,940 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:19,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:19,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1429030512, now seen corresponding path program 1 times [2021-04-29 03:46:19,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:19,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127603401] [2021-04-29 03:46:19,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:19,953 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:19,957 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:19,964 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:46:19,964 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:46:19,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-04-29 03:46:19,965 WARN L342 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:46:19,965 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2021-04-29 03:46:20,039 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:46:20,040 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:46:20,041 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:46:20,041 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:46:20,041 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:46:20,041 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:46:20,041 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:46:20,041 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:46:20,041 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:46:20,042 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:46:20,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 251 places, 152 transitions, 2901 flow [2021-04-29 03:46:20,095 INFO L129 PetriNetUnfolder]: 0/299 cut-off events. [2021-04-29 03:46:20,095 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:20,096 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. [2021-04-29 03:46:20,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 152 transitions, 2901 flow [2021-04-29 03:46:20,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 150 transitions, 2897 flow [2021-04-29 03:46:20,098 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:20,098 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 150 transitions, 2897 flow [2021-04-29 03:46:20,098 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 150 transitions, 2897 flow [2021-04-29 03:46:20,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 249 places, 150 transitions, 2897 flow [2021-04-29 03:46:20,140 INFO L129 PetriNetUnfolder]: 0/199 cut-off events. [2021-04-29 03:46:20,140 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:20,140 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. [2021-04-29 03:46:20,153 INFO L146 LiptonReduction]: Number of co-enabled transitions 14504 [2021-04-29 03:46:27,464 INFO L158 LiptonReduction]: Checked pairs total: 5978 [2021-04-29 03:46:27,464 INFO L160 LiptonReduction]: Total number of compositions: 49 [2021-04-29 03:46:27,464 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7366 [2021-04-29 03:46:27,469 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:46:27,469 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:27,469 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:27,469 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:46:27,470 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:27,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:27,470 INFO L82 PathProgramCache]: Analyzing trace with hash 164131, now seen corresponding path program 1 times [2021-04-29 03:46:27,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:27,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926377376] [2021-04-29 03:46:27,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:46:27,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:46:27,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:46:27,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:46:27,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926377376] [2021-04-29 03:46:27,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:46:27,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:46:27,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523369611] [2021-04-29 03:46:27,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:46:27,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:46:27,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:46:27,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:46:27,487 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 201 [2021-04-29 03:46:27,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 150 transitions, 2897 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) [2021-04-29 03:46:27,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:46:27,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 201 [2021-04-29 03:46:27,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:46:27,531 INFO L129 PetriNetUnfolder]: 0/149 cut-off events. [2021-04-29 03:46:27,531 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:27,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1524 conditions, 149 events. 0/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 297 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. [2021-04-29 03:46:27,532 INFO L132 encePairwiseOnDemand]: 199/201 looper letters, 0 selfloop transitions, 1 changer transitions 0/149 dead transitions. [2021-04-29 03:46:27,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 149 transitions, 2897 flow [2021-04-29 03:46:27,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:46:27,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:46:27,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2021-04-29 03:46:27,533 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.988391376451078 [2021-04-29 03:46:27,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2021-04-29 03:46:27,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2021-04-29 03:46:27,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:46:27,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2021-04-29 03:46:27,535 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) [2021-04-29 03:46:27,536 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) [2021-04-29 03:46:27,536 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) [2021-04-29 03:46:27,537 INFO L185 Difference]: Start difference. First operand has 249 places, 150 transitions, 2897 flow. Second operand 3 states and 596 transitions. [2021-04-29 03:46:27,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 149 transitions, 2897 flow [2021-04-29 03:46:27,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 149 transitions, 545 flow, removed 1176 selfloop flow, removed 0 redundant places. [2021-04-29 03:46:27,615 INFO L241 Difference]: Finished difference. Result has 250 places, 149 transitions, 545 flow [2021-04-29 03:46:27,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=250, PETRI_TRANSITIONS=149} [2021-04-29 03:46:27,616 INFO L343 CegarLoopForPetriNet]: 249 programPoint places, 1 predicate places. [2021-04-29 03:46:27,616 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:27,616 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 250 places, 149 transitions, 545 flow [2021-04-29 03:46:27,616 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 250 places, 149 transitions, 545 flow [2021-04-29 03:46:27,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 250 places, 149 transitions, 545 flow [2021-04-29 03:46:27,650 INFO L129 PetriNetUnfolder]: 0/149 cut-off events. [2021-04-29 03:46:27,650 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:27,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 149 events. 0/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 272 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. [2021-04-29 03:46:27,658 INFO L146 LiptonReduction]: Number of co-enabled transitions 14308 [2021-04-29 03:46:27,678 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:46:27,679 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:46:27,679 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-04-29 03:46:27,683 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 149 transitions, 545 flow [2021-04-29 03:46:27,683 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) [2021-04-29 03:46:27,683 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:27,683 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:46:27,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-04-29 03:46:27,684 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:27,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:27,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1177315567, now seen corresponding path program 1 times [2021-04-29 03:46:27,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:27,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495747161] [2021-04-29 03:46:27,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:27,700 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:27,703 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:27,712 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:46:27,712 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:46:27,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-04-29 03:46:27,712 WARN L342 ceAbstractionStarter]: 49 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:46:27,713 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 50 thread instances. [2021-04-29 03:46:27,778 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:46:27,778 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:46:27,779 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:46:27,779 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:46:27,779 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:46:27,779 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:46:27,779 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:46:27,779 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:46:27,779 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:46:27,779 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:46:27,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 256 places, 155 transitions, 3010 flow [2021-04-29 03:46:27,870 INFO L129 PetriNetUnfolder]: 0/305 cut-off events. [2021-04-29 03:46:27,870 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:27,870 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. [2021-04-29 03:46:27,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 155 transitions, 3010 flow [2021-04-29 03:46:27,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 153 transitions, 3006 flow [2021-04-29 03:46:27,873 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:27,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 153 transitions, 3006 flow [2021-04-29 03:46:27,874 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 153 transitions, 3006 flow [2021-04-29 03:46:27,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 254 places, 153 transitions, 3006 flow [2021-04-29 03:46:27,940 INFO L129 PetriNetUnfolder]: 0/203 cut-off events. [2021-04-29 03:46:27,941 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:27,941 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. [2021-04-29 03:46:27,955 INFO L146 LiptonReduction]: Number of co-enabled transitions 15100 [2021-04-29 03:46:35,602 INFO L158 LiptonReduction]: Checked pairs total: 6225 [2021-04-29 03:46:35,602 INFO L160 LiptonReduction]: Total number of compositions: 50 [2021-04-29 03:46:35,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7729 [2021-04-29 03:46:35,605 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:46:35,606 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:35,606 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:35,606 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:46:35,606 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:35,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:35,606 INFO L82 PathProgramCache]: Analyzing trace with hash 170659, now seen corresponding path program 1 times [2021-04-29 03:46:35,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:35,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344233942] [2021-04-29 03:46:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:46:35,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:46:35,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:46:35,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:46:35,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344233942] [2021-04-29 03:46:35,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:46:35,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:46:35,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689109506] [2021-04-29 03:46:35,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:46:35,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:46:35,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:46:35,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:46:35,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 205 [2021-04-29 03:46:35,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 153 transitions, 3006 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) [2021-04-29 03:46:35,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:46:35,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 205 [2021-04-29 03:46:35,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:46:35,673 INFO L129 PetriNetUnfolder]: 0/152 cut-off events. [2021-04-29 03:46:35,673 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:35,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1580 conditions, 152 events. 0/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 264 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. [2021-04-29 03:46:35,674 INFO L132 encePairwiseOnDemand]: 203/205 looper letters, 0 selfloop transitions, 1 changer transitions 0/152 dead transitions. [2021-04-29 03:46:35,675 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 152 transitions, 3006 flow [2021-04-29 03:46:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:46:35,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:46:35,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2021-04-29 03:46:35,676 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9886178861788618 [2021-04-29 03:46:35,676 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 608 transitions. [2021-04-29 03:46:35,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 608 transitions. [2021-04-29 03:46:35,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:46:35,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 608 transitions. [2021-04-29 03:46:35,677 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) [2021-04-29 03:46:35,679 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) [2021-04-29 03:46:35,679 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) [2021-04-29 03:46:35,679 INFO L185 Difference]: Start difference. First operand has 254 places, 153 transitions, 3006 flow. Second operand 3 states and 608 transitions. [2021-04-29 03:46:35,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 152 transitions, 3006 flow [2021-04-29 03:46:35,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 152 transitions, 556 flow, removed 1225 selfloop flow, removed 0 redundant places. [2021-04-29 03:46:35,760 INFO L241 Difference]: Finished difference. Result has 255 places, 152 transitions, 556 flow [2021-04-29 03:46:35,760 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=253, 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=556, PETRI_PLACES=255, PETRI_TRANSITIONS=152} [2021-04-29 03:46:35,761 INFO L343 CegarLoopForPetriNet]: 254 programPoint places, 1 predicate places. [2021-04-29 03:46:35,761 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:35,761 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 255 places, 152 transitions, 556 flow [2021-04-29 03:46:35,761 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 255 places, 152 transitions, 556 flow [2021-04-29 03:46:35,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 255 places, 152 transitions, 556 flow [2021-04-29 03:46:35,787 INFO L129 PetriNetUnfolder]: 0/152 cut-off events. [2021-04-29 03:46:35,787 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:35,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 152 events. 0/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 307 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. [2021-04-29 03:46:35,792 INFO L146 LiptonReduction]: Number of co-enabled transitions 14900 [2021-04-29 03:46:35,806 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:46:35,806 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:46:35,806 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-04-29 03:46:35,809 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 152 transitions, 556 flow [2021-04-29 03:46:35,809 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) [2021-04-29 03:46:35,809 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:35,809 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] [2021-04-29 03:46:35,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-04-29 03:46:35,810 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:35,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:35,810 INFO L82 PathProgramCache]: Analyzing trace with hash 568827443, now seen corresponding path program 1 times [2021-04-29 03:46:35,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:35,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384478034] [2021-04-29 03:46:35,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:35,821 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:35,824 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:35,831 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:46:35,831 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:46:35,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-04-29 03:46:35,832 WARN L342 ceAbstractionStarter]: 50 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:46:35,832 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 51 thread instances. [2021-04-29 03:46:35,914 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:46:35,915 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:46:35,915 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:46:35,915 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:46:35,916 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:46:35,916 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:46:35,916 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:46:35,916 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:46:35,916 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:46:35,916 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:46:35,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 158 transitions, 3121 flow [2021-04-29 03:46:36,025 INFO L129 PetriNetUnfolder]: 0/311 cut-off events. [2021-04-29 03:46:36,026 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:36,026 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. [2021-04-29 03:46:36,026 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 158 transitions, 3121 flow [2021-04-29 03:46:36,032 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 259 places, 156 transitions, 3117 flow [2021-04-29 03:46:36,032 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:36,032 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 259 places, 156 transitions, 3117 flow [2021-04-29 03:46:36,033 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 259 places, 156 transitions, 3117 flow [2021-04-29 03:46:36,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 259 places, 156 transitions, 3117 flow [2021-04-29 03:46:36,155 INFO L129 PetriNetUnfolder]: 0/207 cut-off events. [2021-04-29 03:46:36,155 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:36,155 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. [2021-04-29 03:46:36,188 INFO L146 LiptonReduction]: Number of co-enabled transitions 15708 [2021-04-29 03:46:44,833 INFO L158 LiptonReduction]: Checked pairs total: 6477 [2021-04-29 03:46:44,833 INFO L160 LiptonReduction]: Total number of compositions: 51 [2021-04-29 03:46:44,833 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8801 [2021-04-29 03:46:44,837 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:46:44,837 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:44,837 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:44,837 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:46:44,837 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:44,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:44,838 INFO L82 PathProgramCache]: Analyzing trace with hash 177315, now seen corresponding path program 1 times [2021-04-29 03:46:44,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:44,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270389230] [2021-04-29 03:46:44,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:46:44,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:46:44,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:46:44,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:46:44,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270389230] [2021-04-29 03:46:44,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:46:44,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:46:44,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91254499] [2021-04-29 03:46:44,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:46:44,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:46:44,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:46:44,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:46:44,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 209 [2021-04-29 03:46:44,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 156 transitions, 3117 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) [2021-04-29 03:46:44,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:46:44,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 209 [2021-04-29 03:46:44,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:46:44,911 INFO L129 PetriNetUnfolder]: 0/155 cut-off events. [2021-04-29 03:46:44,911 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:44,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1637 conditions, 155 events. 0/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 321 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. [2021-04-29 03:46:44,912 INFO L132 encePairwiseOnDemand]: 207/209 looper letters, 0 selfloop transitions, 1 changer transitions 0/155 dead transitions. [2021-04-29 03:46:44,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 155 transitions, 3117 flow [2021-04-29 03:46:44,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:46:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:46:44,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 620 transitions. [2021-04-29 03:46:44,913 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.988835725677831 [2021-04-29 03:46:44,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 620 transitions. [2021-04-29 03:46:44,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 620 transitions. [2021-04-29 03:46:44,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:46:44,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 620 transitions. [2021-04-29 03:46:44,914 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) [2021-04-29 03:46:44,915 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) [2021-04-29 03:46:44,916 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) [2021-04-29 03:46:44,916 INFO L185 Difference]: Start difference. First operand has 259 places, 156 transitions, 3117 flow. Second operand 3 states and 620 transitions. [2021-04-29 03:46:44,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 155 transitions, 3117 flow [2021-04-29 03:46:44,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 155 transitions, 567 flow, removed 1275 selfloop flow, removed 0 redundant places. [2021-04-29 03:46:44,980 INFO L241 Difference]: Finished difference. Result has 260 places, 155 transitions, 567 flow [2021-04-29 03:46:44,980 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=567, PETRI_PLACES=260, PETRI_TRANSITIONS=155} [2021-04-29 03:46:44,980 INFO L343 CegarLoopForPetriNet]: 259 programPoint places, 1 predicate places. [2021-04-29 03:46:44,980 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:44,980 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 260 places, 155 transitions, 567 flow [2021-04-29 03:46:44,981 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 260 places, 155 transitions, 567 flow [2021-04-29 03:46:44,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 260 places, 155 transitions, 567 flow [2021-04-29 03:46:45,003 INFO L129 PetriNetUnfolder]: 0/155 cut-off events. [2021-04-29 03:46:45,003 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:45,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 155 events. 0/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 359 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. [2021-04-29 03:46:45,008 INFO L146 LiptonReduction]: Number of co-enabled transitions 15504 [2021-04-29 03:46:45,021 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:46:45,021 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:46:45,022 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-04-29 03:46:45,024 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 155 transitions, 567 flow [2021-04-29 03:46:45,024 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) [2021-04-29 03:46:45,025 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:45,025 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] [2021-04-29 03:46:45,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-04-29 03:46:45,025 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:45,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:45,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1219012916, now seen corresponding path program 1 times [2021-04-29 03:46:45,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:45,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675749558] [2021-04-29 03:46:45,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:45,037 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:45,041 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:45,049 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:46:45,049 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:46:45,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-04-29 03:46:45,049 WARN L342 ceAbstractionStarter]: 51 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:46:45,049 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 52 thread instances. [2021-04-29 03:46:45,125 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:46:45,126 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:46:45,127 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:46:45,127 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:46:45,127 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:46:45,127 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:46:45,127 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:46:45,127 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:46:45,127 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:46:45,127 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:46:45,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 266 places, 161 transitions, 3234 flow [2021-04-29 03:46:45,223 INFO L129 PetriNetUnfolder]: 0/317 cut-off events. [2021-04-29 03:46:45,224 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:45,224 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. [2021-04-29 03:46:45,224 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 161 transitions, 3234 flow [2021-04-29 03:46:45,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 159 transitions, 3230 flow [2021-04-29 03:46:45,227 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:45,227 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 159 transitions, 3230 flow [2021-04-29 03:46:45,227 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 159 transitions, 3230 flow [2021-04-29 03:46:45,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 264 places, 159 transitions, 3230 flow [2021-04-29 03:46:45,306 INFO L129 PetriNetUnfolder]: 0/211 cut-off events. [2021-04-29 03:46:45,307 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:45,307 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. [2021-04-29 03:46:45,333 INFO L146 LiptonReduction]: Number of co-enabled transitions 16328 [2021-04-29 03:46:53,910 INFO L158 LiptonReduction]: Checked pairs total: 6734 [2021-04-29 03:46:53,910 INFO L160 LiptonReduction]: Total number of compositions: 52 [2021-04-29 03:46:53,911 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8684 [2021-04-29 03:46:53,915 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:46:53,915 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:53,916 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:53,916 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:46:53,916 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:53,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:53,916 INFO L82 PathProgramCache]: Analyzing trace with hash 184099, now seen corresponding path program 1 times [2021-04-29 03:46:53,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:53,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225706651] [2021-04-29 03:46:53,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:46:53,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:46:53,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:46:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:46:53,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225706651] [2021-04-29 03:46:53,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:46:53,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:46:53,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743706371] [2021-04-29 03:46:53,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:46:53,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:46:53,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:46:53,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:46:53,934 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 213 [2021-04-29 03:46:53,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 159 transitions, 3230 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) [2021-04-29 03:46:53,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:46:53,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 213 [2021-04-29 03:46:53,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:46:53,984 INFO L129 PetriNetUnfolder]: 0/158 cut-off events. [2021-04-29 03:46:53,985 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:53,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 158 events. 0/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 372 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. [2021-04-29 03:46:53,985 INFO L132 encePairwiseOnDemand]: 211/213 looper letters, 0 selfloop transitions, 1 changer transitions 0/158 dead transitions. [2021-04-29 03:46:53,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 158 transitions, 3230 flow [2021-04-29 03:46:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:46:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:46:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 632 transitions. [2021-04-29 03:46:53,986 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9890453834115805 [2021-04-29 03:46:53,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 632 transitions. [2021-04-29 03:46:53,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 632 transitions. [2021-04-29 03:46:53,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:46:53,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 632 transitions. [2021-04-29 03:46:53,988 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) [2021-04-29 03:46:53,989 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) [2021-04-29 03:46:53,989 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) [2021-04-29 03:46:53,989 INFO L185 Difference]: Start difference. First operand has 264 places, 159 transitions, 3230 flow. Second operand 3 states and 632 transitions. [2021-04-29 03:46:53,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 158 transitions, 3230 flow [2021-04-29 03:46:54,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 158 transitions, 578 flow, removed 1326 selfloop flow, removed 0 redundant places. [2021-04-29 03:46:54,058 INFO L241 Difference]: Finished difference. Result has 265 places, 158 transitions, 578 flow [2021-04-29 03:46:54,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=263, 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=578, PETRI_PLACES=265, PETRI_TRANSITIONS=158} [2021-04-29 03:46:54,059 INFO L343 CegarLoopForPetriNet]: 264 programPoint places, 1 predicate places. [2021-04-29 03:46:54,059 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:54,059 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 158 transitions, 578 flow [2021-04-29 03:46:54,059 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 158 transitions, 578 flow [2021-04-29 03:46:54,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 265 places, 158 transitions, 578 flow [2021-04-29 03:46:54,085 INFO L129 PetriNetUnfolder]: 0/158 cut-off events. [2021-04-29 03:46:54,086 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:54,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 158 events. 0/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 303 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. [2021-04-29 03:46:54,091 INFO L146 LiptonReduction]: Number of co-enabled transitions 16120 [2021-04-29 03:46:54,104 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:46:54,104 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:46:54,105 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-04-29 03:46:54,107 INFO L480 AbstractCegarLoop]: Abstraction has has 265 places, 158 transitions, 578 flow [2021-04-29 03:46:54,108 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) [2021-04-29 03:46:54,108 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:46:54,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:46:54,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-04-29 03:46:54,108 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:46:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:46:54,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1650121738, now seen corresponding path program 1 times [2021-04-29 03:46:54,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:46:54,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367618886] [2021-04-29 03:46:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:46:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:54,118 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:46:54,120 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:46:54,128 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:46:54,128 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:46:54,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-04-29 03:46:54,128 WARN L342 ceAbstractionStarter]: 52 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:46:54,128 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 53 thread instances. [2021-04-29 03:46:54,214 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:46:54,215 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:46:54,216 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:46:54,216 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:46:54,216 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:46:54,216 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:46:54,216 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:46:54,216 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:46:54,216 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:46:54,216 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:46:54,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 271 places, 164 transitions, 3349 flow [2021-04-29 03:46:54,448 INFO L129 PetriNetUnfolder]: 0/323 cut-off events. [2021-04-29 03:46:54,448 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:54,448 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. [2021-04-29 03:46:54,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 164 transitions, 3349 flow [2021-04-29 03:46:54,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 269 places, 162 transitions, 3345 flow [2021-04-29 03:46:54,451 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:46:54,451 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 162 transitions, 3345 flow [2021-04-29 03:46:54,452 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 162 transitions, 3345 flow [2021-04-29 03:46:54,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 269 places, 162 transitions, 3345 flow [2021-04-29 03:46:54,533 INFO L129 PetriNetUnfolder]: 0/215 cut-off events. [2021-04-29 03:46:54,534 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:46:54,534 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. [2021-04-29 03:46:54,554 INFO L146 LiptonReduction]: Number of co-enabled transitions 16960 [2021-04-29 03:47:03,885 INFO L158 LiptonReduction]: Checked pairs total: 6996 [2021-04-29 03:47:03,886 INFO L160 LiptonReduction]: Total number of compositions: 53 [2021-04-29 03:47:03,886 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9435 [2021-04-29 03:47:03,890 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:47:03,891 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:03,891 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:03,891 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:47:03,891 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:03,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:03,891 INFO L82 PathProgramCache]: Analyzing trace with hash 191011, now seen corresponding path program 1 times [2021-04-29 03:47:03,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:03,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506122458] [2021-04-29 03:47:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:47:03,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:47:03,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:47:03,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:47:03,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506122458] [2021-04-29 03:47:03,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:47:03,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:47:03,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303114665] [2021-04-29 03:47:03,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:47:03,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:47:03,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:47:03,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:47:03,907 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 217 [2021-04-29 03:47:03,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 162 transitions, 3345 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) [2021-04-29 03:47:03,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:47:03,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 217 [2021-04-29 03:47:03,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:47:03,965 INFO L129 PetriNetUnfolder]: 0/161 cut-off events. [2021-04-29 03:47:03,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:03,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 161 events. 0/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 309 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. [2021-04-29 03:47:03,966 INFO L132 encePairwiseOnDemand]: 215/217 looper letters, 0 selfloop transitions, 1 changer transitions 0/161 dead transitions. [2021-04-29 03:47:03,966 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 161 transitions, 3345 flow [2021-04-29 03:47:03,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:47:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:47:03,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-04-29 03:47:03,967 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.989247311827957 [2021-04-29 03:47:03,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-04-29 03:47:03,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-04-29 03:47:03,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:47:03,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-04-29 03:47:03,969 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) [2021-04-29 03:47:03,970 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) [2021-04-29 03:47:03,970 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) [2021-04-29 03:47:03,970 INFO L185 Difference]: Start difference. First operand has 269 places, 162 transitions, 3345 flow. Second operand 3 states and 644 transitions. [2021-04-29 03:47:03,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 161 transitions, 3345 flow [2021-04-29 03:47:04,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 161 transitions, 589 flow, removed 1378 selfloop flow, removed 0 redundant places. [2021-04-29 03:47:04,051 INFO L241 Difference]: Finished difference. Result has 270 places, 161 transitions, 589 flow [2021-04-29 03:47:04,052 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=589, PETRI_PLACES=270, PETRI_TRANSITIONS=161} [2021-04-29 03:47:04,052 INFO L343 CegarLoopForPetriNet]: 269 programPoint places, 1 predicate places. [2021-04-29 03:47:04,052 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:04,052 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 161 transitions, 589 flow [2021-04-29 03:47:04,052 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 161 transitions, 589 flow [2021-04-29 03:47:04,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 270 places, 161 transitions, 589 flow [2021-04-29 03:47:04,076 INFO L129 PetriNetUnfolder]: 0/161 cut-off events. [2021-04-29 03:47:04,076 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:04,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 161 events. 0/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 343 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. [2021-04-29 03:47:04,081 INFO L146 LiptonReduction]: Number of co-enabled transitions 16748 [2021-04-29 03:47:04,095 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:47:04,095 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:47:04,095 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-29 03:47:04,099 INFO L480 AbstractCegarLoop]: Abstraction has has 270 places, 161 transitions, 589 flow [2021-04-29 03:47:04,100 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) [2021-04-29 03:47:04,100 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:04,100 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:47:04,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-04-29 03:47:04,100 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:04,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:04,100 INFO L82 PathProgramCache]: Analyzing trace with hash 292165271, now seen corresponding path program 1 times [2021-04-29 03:47:04,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:04,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568777951] [2021-04-29 03:47:04,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:04,112 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:04,115 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:04,124 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:47:04,124 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:47:04,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-04-29 03:47:04,125 WARN L342 ceAbstractionStarter]: 53 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:47:04,125 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 54 thread instances. [2021-04-29 03:47:04,199 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:47:04,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:47:04,200 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:47:04,200 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:47:04,200 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:47:04,201 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:47:04,201 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:47:04,201 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:47:04,201 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:47:04,201 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:47:04,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 276 places, 167 transitions, 3466 flow [2021-04-29 03:47:04,283 INFO L129 PetriNetUnfolder]: 0/329 cut-off events. [2021-04-29 03:47:04,283 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:04,283 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. [2021-04-29 03:47:04,284 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 167 transitions, 3466 flow [2021-04-29 03:47:04,286 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 165 transitions, 3462 flow [2021-04-29 03:47:04,287 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:04,287 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 165 transitions, 3462 flow [2021-04-29 03:47:04,287 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 165 transitions, 3462 flow [2021-04-29 03:47:04,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 274 places, 165 transitions, 3462 flow [2021-04-29 03:47:04,362 INFO L129 PetriNetUnfolder]: 0/219 cut-off events. [2021-04-29 03:47:04,363 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:04,363 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. [2021-04-29 03:47:04,390 INFO L146 LiptonReduction]: Number of co-enabled transitions 17604 [2021-04-29 03:47:13,962 INFO L158 LiptonReduction]: Checked pairs total: 7263 [2021-04-29 03:47:13,962 INFO L160 LiptonReduction]: Total number of compositions: 54 [2021-04-29 03:47:13,962 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9675 [2021-04-29 03:47:13,967 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:47:13,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:13,967 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:13,967 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:47:13,967 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:13,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:13,967 INFO L82 PathProgramCache]: Analyzing trace with hash 198051, now seen corresponding path program 1 times [2021-04-29 03:47:13,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:13,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640093779] [2021-04-29 03:47:13,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:47:13,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:47:13,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:47:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:47:13,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640093779] [2021-04-29 03:47:13,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:47:13,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:47:13,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59486977] [2021-04-29 03:47:13,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:47:13,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:47:13,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:47:13,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:47:13,991 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 221 [2021-04-29 03:47:13,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 165 transitions, 3462 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) [2021-04-29 03:47:13,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:47:13,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 221 [2021-04-29 03:47:13,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:47:14,073 INFO L129 PetriNetUnfolder]: 0/164 cut-off events. [2021-04-29 03:47:14,073 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:14,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1814 conditions, 164 events. 0/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 324 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. [2021-04-29 03:47:14,074 INFO L132 encePairwiseOnDemand]: 219/221 looper letters, 0 selfloop transitions, 1 changer transitions 0/164 dead transitions. [2021-04-29 03:47:14,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 164 transitions, 3462 flow [2021-04-29 03:47:14,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:47:14,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:47:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 656 transitions. [2021-04-29 03:47:14,077 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9894419306184012 [2021-04-29 03:47:14,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 656 transitions. [2021-04-29 03:47:14,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 656 transitions. [2021-04-29 03:47:14,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:47:14,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 656 transitions. [2021-04-29 03:47:14,079 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) [2021-04-29 03:47:14,080 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) [2021-04-29 03:47:14,080 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) [2021-04-29 03:47:14,080 INFO L185 Difference]: Start difference. First operand has 274 places, 165 transitions, 3462 flow. Second operand 3 states and 656 transitions. [2021-04-29 03:47:14,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 164 transitions, 3462 flow [2021-04-29 03:47:14,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 164 transitions, 600 flow, removed 1431 selfloop flow, removed 0 redundant places. [2021-04-29 03:47:14,189 INFO L241 Difference]: Finished difference. Result has 275 places, 164 transitions, 600 flow [2021-04-29 03:47:14,189 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=273, 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=600, PETRI_PLACES=275, PETRI_TRANSITIONS=164} [2021-04-29 03:47:14,189 INFO L343 CegarLoopForPetriNet]: 274 programPoint places, 1 predicate places. [2021-04-29 03:47:14,189 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:14,189 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 164 transitions, 600 flow [2021-04-29 03:47:14,190 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 164 transitions, 600 flow [2021-04-29 03:47:14,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 275 places, 164 transitions, 600 flow [2021-04-29 03:47:14,214 INFO L129 PetriNetUnfolder]: 0/164 cut-off events. [2021-04-29 03:47:14,214 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:14,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 164 events. 0/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 303 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. [2021-04-29 03:47:14,220 INFO L146 LiptonReduction]: Number of co-enabled transitions 17388 [2021-04-29 03:47:14,235 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:47:14,235 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:47:14,235 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-04-29 03:47:14,239 INFO L480 AbstractCegarLoop]: Abstraction has has 275 places, 164 transitions, 600 flow [2021-04-29 03:47:14,240 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) [2021-04-29 03:47:14,240 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:14,240 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] [2021-04-29 03:47:14,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-04-29 03:47:14,240 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:14,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1780032071, now seen corresponding path program 1 times [2021-04-29 03:47:14,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:14,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9686150] [2021-04-29 03:47:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:14,252 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:14,255 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:14,265 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:47:14,265 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:47:14,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-04-29 03:47:14,265 WARN L342 ceAbstractionStarter]: 54 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:47:14,265 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 55 thread instances. [2021-04-29 03:47:14,350 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:47:14,351 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:47:14,352 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:47:14,352 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:47:14,352 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:47:14,352 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:47:14,352 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:47:14,352 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:47:14,352 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:47:14,352 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:47:14,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 281 places, 170 transitions, 3585 flow [2021-04-29 03:47:14,439 INFO L129 PetriNetUnfolder]: 0/335 cut-off events. [2021-04-29 03:47:14,439 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:14,439 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. [2021-04-29 03:47:14,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 170 transitions, 3585 flow [2021-04-29 03:47:14,442 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 168 transitions, 3581 flow [2021-04-29 03:47:14,442 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:14,443 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 279 places, 168 transitions, 3581 flow [2021-04-29 03:47:14,443 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 279 places, 168 transitions, 3581 flow [2021-04-29 03:47:14,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 279 places, 168 transitions, 3581 flow [2021-04-29 03:47:14,497 INFO L129 PetriNetUnfolder]: 0/223 cut-off events. [2021-04-29 03:47:14,497 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:14,497 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. [2021-04-29 03:47:14,514 INFO L146 LiptonReduction]: Number of co-enabled transitions 18260 [2021-04-29 03:47:24,518 INFO L158 LiptonReduction]: Checked pairs total: 7535 [2021-04-29 03:47:24,518 INFO L160 LiptonReduction]: Total number of compositions: 55 [2021-04-29 03:47:24,518 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10076 [2021-04-29 03:47:24,522 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:47:24,522 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:24,522 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:24,522 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:47:24,522 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:24,522 INFO L82 PathProgramCache]: Analyzing trace with hash 205219, now seen corresponding path program 1 times [2021-04-29 03:47:24,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:24,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315453788] [2021-04-29 03:47:24,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:47:24,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:47:24,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:47:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:47:24,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315453788] [2021-04-29 03:47:24,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:47:24,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:47:24,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058456111] [2021-04-29 03:47:24,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:47:24,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:47:24,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:47:24,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:47:24,539 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 225 [2021-04-29 03:47:24,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 168 transitions, 3581 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) [2021-04-29 03:47:24,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:47:24,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 225 [2021-04-29 03:47:24,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:47:24,604 INFO L129 PetriNetUnfolder]: 0/167 cut-off events. [2021-04-29 03:47:24,604 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:24,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1875 conditions, 167 events. 0/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 315 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. [2021-04-29 03:47:24,605 INFO L132 encePairwiseOnDemand]: 223/225 looper letters, 0 selfloop transitions, 1 changer transitions 0/167 dead transitions. [2021-04-29 03:47:24,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 167 transitions, 3581 flow [2021-04-29 03:47:24,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:47:24,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:47:24,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2021-04-29 03:47:24,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9896296296296296 [2021-04-29 03:47:24,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 668 transitions. [2021-04-29 03:47:24,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 668 transitions. [2021-04-29 03:47:24,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:47:24,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 668 transitions. [2021-04-29 03:47:24,607 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) [2021-04-29 03:47:24,608 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) [2021-04-29 03:47:24,608 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) [2021-04-29 03:47:24,608 INFO L185 Difference]: Start difference. First operand has 279 places, 168 transitions, 3581 flow. Second operand 3 states and 668 transitions. [2021-04-29 03:47:24,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 167 transitions, 3581 flow [2021-04-29 03:47:24,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 167 transitions, 611 flow, removed 1485 selfloop flow, removed 0 redundant places. [2021-04-29 03:47:24,722 INFO L241 Difference]: Finished difference. Result has 280 places, 167 transitions, 611 flow [2021-04-29 03:47:24,722 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=611, PETRI_PLACES=280, PETRI_TRANSITIONS=167} [2021-04-29 03:47:24,722 INFO L343 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2021-04-29 03:47:24,722 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:24,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 167 transitions, 611 flow [2021-04-29 03:47:24,723 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 167 transitions, 611 flow [2021-04-29 03:47:24,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 280 places, 167 transitions, 611 flow [2021-04-29 03:47:24,761 INFO L129 PetriNetUnfolder]: 0/167 cut-off events. [2021-04-29 03:47:24,761 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:24,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 167 events. 0/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 324 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. [2021-04-29 03:47:24,767 INFO L146 LiptonReduction]: Number of co-enabled transitions 18040 [2021-04-29 03:47:24,783 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:47:24,783 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:47:24,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-04-29 03:47:24,786 INFO L480 AbstractCegarLoop]: Abstraction has has 280 places, 167 transitions, 611 flow [2021-04-29 03:47:24,786 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) [2021-04-29 03:47:24,786 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:24,786 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] [2021-04-29 03:47:24,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-04-29 03:47:24,787 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:24,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:24,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1407430542, now seen corresponding path program 1 times [2021-04-29 03:47:24,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:24,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47323271] [2021-04-29 03:47:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:24,797 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:24,801 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:24,810 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:47:24,810 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:47:24,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-04-29 03:47:24,811 WARN L342 ceAbstractionStarter]: 55 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:47:24,811 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 56 thread instances. [2021-04-29 03:47:24,896 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:47:24,896 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:47:24,897 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:47:24,897 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:47:24,897 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:47:24,897 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:47:24,897 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:47:24,897 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:47:24,897 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:47:24,897 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:47:24,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 286 places, 173 transitions, 3706 flow [2021-04-29 03:47:24,976 INFO L129 PetriNetUnfolder]: 0/341 cut-off events. [2021-04-29 03:47:24,976 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:24,976 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. [2021-04-29 03:47:24,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 173 transitions, 3706 flow [2021-04-29 03:47:24,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 284 places, 171 transitions, 3702 flow [2021-04-29 03:47:24,979 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:24,979 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 284 places, 171 transitions, 3702 flow [2021-04-29 03:47:24,979 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 284 places, 171 transitions, 3702 flow [2021-04-29 03:47:24,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 284 places, 171 transitions, 3702 flow [2021-04-29 03:47:25,030 INFO L129 PetriNetUnfolder]: 0/227 cut-off events. [2021-04-29 03:47:25,030 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:25,030 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. [2021-04-29 03:47:25,049 INFO L146 LiptonReduction]: Number of co-enabled transitions 18928 [2021-04-29 03:47:35,873 INFO L158 LiptonReduction]: Checked pairs total: 7812 [2021-04-29 03:47:35,874 INFO L160 LiptonReduction]: Total number of compositions: 56 [2021-04-29 03:47:35,874 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10895 [2021-04-29 03:47:35,878 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:47:35,878 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:35,878 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:35,878 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:47:35,878 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:35,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:35,878 INFO L82 PathProgramCache]: Analyzing trace with hash 212515, now seen corresponding path program 1 times [2021-04-29 03:47:35,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:35,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081723452] [2021-04-29 03:47:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:47:35,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:47:35,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:47:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:47:35,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081723452] [2021-04-29 03:47:35,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:47:35,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:47:35,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938373735] [2021-04-29 03:47:35,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:47:35,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:47:35,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:47:35,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:47:35,897 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 229 [2021-04-29 03:47:35,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 171 transitions, 3702 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) [2021-04-29 03:47:35,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:47:35,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 229 [2021-04-29 03:47:35,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:47:35,951 INFO L129 PetriNetUnfolder]: 0/170 cut-off events. [2021-04-29 03:47:35,951 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:35,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1937 conditions, 170 events. 0/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 312 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. [2021-04-29 03:47:35,951 INFO L132 encePairwiseOnDemand]: 227/229 looper letters, 0 selfloop transitions, 1 changer transitions 0/170 dead transitions. [2021-04-29 03:47:35,951 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 170 transitions, 3702 flow [2021-04-29 03:47:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:47:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:47:35,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 680 transitions. [2021-04-29 03:47:35,953 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9898107714701602 [2021-04-29 03:47:35,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 680 transitions. [2021-04-29 03:47:35,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 680 transitions. [2021-04-29 03:47:35,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:47:35,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 680 transitions. [2021-04-29 03:47:35,954 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) [2021-04-29 03:47:35,954 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) [2021-04-29 03:47:35,955 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) [2021-04-29 03:47:35,955 INFO L185 Difference]: Start difference. First operand has 284 places, 171 transitions, 3702 flow. Second operand 3 states and 680 transitions. [2021-04-29 03:47:35,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 170 transitions, 3702 flow [2021-04-29 03:47:36,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 170 transitions, 622 flow, removed 1540 selfloop flow, removed 0 redundant places. [2021-04-29 03:47:36,030 INFO L241 Difference]: Finished difference. Result has 285 places, 170 transitions, 622 flow [2021-04-29 03:47:36,030 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=283, 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=622, PETRI_PLACES=285, PETRI_TRANSITIONS=170} [2021-04-29 03:47:36,031 INFO L343 CegarLoopForPetriNet]: 284 programPoint places, 1 predicate places. [2021-04-29 03:47:36,031 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:36,031 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 170 transitions, 622 flow [2021-04-29 03:47:36,031 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 170 transitions, 622 flow [2021-04-29 03:47:36,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 285 places, 170 transitions, 622 flow [2021-04-29 03:47:36,071 INFO L129 PetriNetUnfolder]: 0/170 cut-off events. [2021-04-29 03:47:36,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:36,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 170 events. 0/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 361 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. [2021-04-29 03:47:36,080 INFO L146 LiptonReduction]: Number of co-enabled transitions 18704 [2021-04-29 03:47:36,099 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:47:36,100 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:47:36,100 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-04-29 03:47:36,103 INFO L480 AbstractCegarLoop]: Abstraction has has 285 places, 170 transitions, 622 flow [2021-04-29 03:47:36,104 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) [2021-04-29 03:47:36,104 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:36,104 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] [2021-04-29 03:47:36,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-04-29 03:47:36,104 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:36,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:36,104 INFO L82 PathProgramCache]: Analyzing trace with hash -396701316, now seen corresponding path program 1 times [2021-04-29 03:47:36,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:36,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684356492] [2021-04-29 03:47:36,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:36,115 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:36,118 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:36,128 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:47:36,129 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:47:36,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-04-29 03:47:36,129 WARN L342 ceAbstractionStarter]: 56 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:47:36,129 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 57 thread instances. [2021-04-29 03:47:36,213 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:47:36,213 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:47:36,214 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:47:36,214 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:47:36,214 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:47:36,214 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:47:36,214 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:47:36,215 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:47:36,215 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:47:36,215 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:47:36,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 291 places, 176 transitions, 3829 flow [2021-04-29 03:47:36,281 INFO L129 PetriNetUnfolder]: 0/347 cut-off events. [2021-04-29 03:47:36,281 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:36,282 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. [2021-04-29 03:47:36,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 291 places, 176 transitions, 3829 flow [2021-04-29 03:47:36,284 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 174 transitions, 3825 flow [2021-04-29 03:47:36,284 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:36,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 174 transitions, 3825 flow [2021-04-29 03:47:36,284 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 174 transitions, 3825 flow [2021-04-29 03:47:36,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 289 places, 174 transitions, 3825 flow [2021-04-29 03:47:36,335 INFO L129 PetriNetUnfolder]: 0/231 cut-off events. [2021-04-29 03:47:36,336 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:36,336 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. [2021-04-29 03:47:36,354 INFO L146 LiptonReduction]: Number of co-enabled transitions 19608 [2021-04-29 03:47:47,540 INFO L158 LiptonReduction]: Checked pairs total: 8094 [2021-04-29 03:47:47,541 INFO L160 LiptonReduction]: Total number of compositions: 57 [2021-04-29 03:47:47,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11257 [2021-04-29 03:47:47,545 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:47:47,545 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:47,545 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:47,545 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:47:47,546 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:47,546 INFO L82 PathProgramCache]: Analyzing trace with hash 219939, now seen corresponding path program 1 times [2021-04-29 03:47:47,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:47,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158025561] [2021-04-29 03:47:47,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:47:47,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:47:47,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:47:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:47:47,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158025561] [2021-04-29 03:47:47,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:47:47,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:47:47,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725232655] [2021-04-29 03:47:47,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:47:47,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:47:47,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:47:47,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:47:47,564 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 233 [2021-04-29 03:47:47,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 174 transitions, 3825 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) [2021-04-29 03:47:47,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:47:47,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 233 [2021-04-29 03:47:47,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:47:47,804 INFO L129 PetriNetUnfolder]: 0/173 cut-off events. [2021-04-29 03:47:47,804 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:47,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2000 conditions, 173 events. 0/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 321 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. [2021-04-29 03:47:47,805 INFO L132 encePairwiseOnDemand]: 231/233 looper letters, 0 selfloop transitions, 1 changer transitions 0/173 dead transitions. [2021-04-29 03:47:47,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 173 transitions, 3825 flow [2021-04-29 03:47:47,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:47:47,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:47:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions. [2021-04-29 03:47:47,806 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9899856938483548 [2021-04-29 03:47:47,806 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 692 transitions. [2021-04-29 03:47:47,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 692 transitions. [2021-04-29 03:47:47,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:47:47,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 692 transitions. [2021-04-29 03:47:47,810 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) [2021-04-29 03:47:47,811 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) [2021-04-29 03:47:47,811 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) [2021-04-29 03:47:47,811 INFO L185 Difference]: Start difference. First operand has 289 places, 174 transitions, 3825 flow. Second operand 3 states and 692 transitions. [2021-04-29 03:47:47,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 173 transitions, 3825 flow [2021-04-29 03:47:47,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 173 transitions, 633 flow, removed 1596 selfloop flow, removed 0 redundant places. [2021-04-29 03:47:47,944 INFO L241 Difference]: Finished difference. Result has 290 places, 173 transitions, 633 flow [2021-04-29 03:47:47,944 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=633, PETRI_PLACES=290, PETRI_TRANSITIONS=173} [2021-04-29 03:47:47,944 INFO L343 CegarLoopForPetriNet]: 289 programPoint places, 1 predicate places. [2021-04-29 03:47:47,944 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:47,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 290 places, 173 transitions, 633 flow [2021-04-29 03:47:47,944 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 290 places, 173 transitions, 633 flow [2021-04-29 03:47:47,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 290 places, 173 transitions, 633 flow [2021-04-29 03:47:47,986 INFO L129 PetriNetUnfolder]: 0/173 cut-off events. [2021-04-29 03:47:47,986 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:47,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 173 events. 0/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 355 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. [2021-04-29 03:47:47,996 INFO L146 LiptonReduction]: Number of co-enabled transitions 19380 [2021-04-29 03:47:48,020 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:47:48,020 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:47:48,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-04-29 03:47:48,023 INFO L480 AbstractCegarLoop]: Abstraction has has 290 places, 173 transitions, 633 flow [2021-04-29 03:47:48,023 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) [2021-04-29 03:47:48,024 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:47:48,024 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] [2021-04-29 03:47:48,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-04-29 03:47:48,024 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:47:48,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:47:48,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1672576605, now seen corresponding path program 1 times [2021-04-29 03:47:48,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:47:48,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501203869] [2021-04-29 03:47:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:47:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:48,040 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:47:48,044 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:47:48,059 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:47:48,059 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:47:48,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-04-29 03:47:48,060 WARN L342 ceAbstractionStarter]: 57 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:47:48,060 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 58 thread instances. [2021-04-29 03:47:48,142 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:47:48,143 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:47:48,143 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:47:48,144 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:47:48,144 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:47:48,144 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:47:48,144 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:47:48,144 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:47:48,144 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:47:48,144 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:47:48,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 296 places, 179 transitions, 3954 flow [2021-04-29 03:47:48,262 INFO L129 PetriNetUnfolder]: 0/353 cut-off events. [2021-04-29 03:47:48,262 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:48,263 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. [2021-04-29 03:47:48,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 296 places, 179 transitions, 3954 flow [2021-04-29 03:47:48,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 177 transitions, 3950 flow [2021-04-29 03:47:48,266 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:47:48,266 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 294 places, 177 transitions, 3950 flow [2021-04-29 03:47:48,266 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 294 places, 177 transitions, 3950 flow [2021-04-29 03:47:48,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 294 places, 177 transitions, 3950 flow [2021-04-29 03:47:48,333 INFO L129 PetriNetUnfolder]: 0/235 cut-off events. [2021-04-29 03:47:48,333 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:47:48,333 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. [2021-04-29 03:47:48,352 INFO L146 LiptonReduction]: Number of co-enabled transitions 20300 [2021-04-29 03:48:00,394 INFO L158 LiptonReduction]: Checked pairs total: 8381 [2021-04-29 03:48:00,394 INFO L160 LiptonReduction]: Total number of compositions: 58 [2021-04-29 03:48:00,394 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12128 [2021-04-29 03:48:00,400 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:48:00,400 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:00,400 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:00,400 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:48:00,400 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:00,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:00,400 INFO L82 PathProgramCache]: Analyzing trace with hash 227491, now seen corresponding path program 1 times [2021-04-29 03:48:00,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:00,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774994581] [2021-04-29 03:48:00,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:48:00,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:48:00,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:48:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:48:00,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774994581] [2021-04-29 03:48:00,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:48:00,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:48:00,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651118184] [2021-04-29 03:48:00,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:48:00,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:48:00,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:48:00,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:48:00,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 237 [2021-04-29 03:48:00,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 177 transitions, 3950 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) [2021-04-29 03:48:00,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:48:00,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 237 [2021-04-29 03:48:00,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:48:00,485 INFO L129 PetriNetUnfolder]: 0/176 cut-off events. [2021-04-29 03:48:00,485 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:00,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2064 conditions, 176 events. 0/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 288 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. [2021-04-29 03:48:00,486 INFO L132 encePairwiseOnDemand]: 235/237 looper letters, 0 selfloop transitions, 1 changer transitions 0/176 dead transitions. [2021-04-29 03:48:00,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 176 transitions, 3950 flow [2021-04-29 03:48:00,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:48:00,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:48:00,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 704 transitions. [2021-04-29 03:48:00,487 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9901547116736991 [2021-04-29 03:48:00,487 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 704 transitions. [2021-04-29 03:48:00,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 704 transitions. [2021-04-29 03:48:00,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:48:00,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 704 transitions. [2021-04-29 03:48:00,489 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) [2021-04-29 03:48:00,490 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) [2021-04-29 03:48:00,490 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) [2021-04-29 03:48:00,490 INFO L185 Difference]: Start difference. First operand has 294 places, 177 transitions, 3950 flow. Second operand 3 states and 704 transitions. [2021-04-29 03:48:00,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 176 transitions, 3950 flow [2021-04-29 03:48:00,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 176 transitions, 644 flow, removed 1653 selfloop flow, removed 0 redundant places. [2021-04-29 03:48:00,644 INFO L241 Difference]: Finished difference. Result has 295 places, 176 transitions, 644 flow [2021-04-29 03:48:00,644 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=293, 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=644, PETRI_PLACES=295, PETRI_TRANSITIONS=176} [2021-04-29 03:48:00,644 INFO L343 CegarLoopForPetriNet]: 294 programPoint places, 1 predicate places. [2021-04-29 03:48:00,644 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:00,644 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 295 places, 176 transitions, 644 flow [2021-04-29 03:48:00,647 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 295 places, 176 transitions, 644 flow [2021-04-29 03:48:00,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 295 places, 176 transitions, 644 flow [2021-04-29 03:48:00,694 INFO L129 PetriNetUnfolder]: 0/176 cut-off events. [2021-04-29 03:48:00,694 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:00,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 176 events. 0/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 346 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. [2021-04-29 03:48:00,703 INFO L146 LiptonReduction]: Number of co-enabled transitions 20068 [2021-04-29 03:48:00,729 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:48:00,729 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:48:00,729 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85 [2021-04-29 03:48:00,736 INFO L480 AbstractCegarLoop]: Abstraction has has 295 places, 176 transitions, 644 flow [2021-04-29 03:48:00,736 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) [2021-04-29 03:48:00,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:00,737 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] [2021-04-29 03:48:00,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-04-29 03:48:00,737 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:00,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:00,737 INFO L82 PathProgramCache]: Analyzing trace with hash 874251583, now seen corresponding path program 1 times [2021-04-29 03:48:00,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:00,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601073693] [2021-04-29 03:48:00,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:00,753 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:00,761 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:00,772 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:48:00,773 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:48:00,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-04-29 03:48:00,773 WARN L342 ceAbstractionStarter]: 58 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:48:00,773 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 59 thread instances. [2021-04-29 03:48:00,866 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:48:00,866 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:48:00,867 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:48:00,867 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:48:00,867 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:48:00,867 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:48:00,867 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:48:00,867 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:48:00,867 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:48:00,868 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:48:00,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 301 places, 182 transitions, 4081 flow [2021-04-29 03:48:01,135 INFO L129 PetriNetUnfolder]: 0/359 cut-off events. [2021-04-29 03:48:01,135 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:01,135 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. [2021-04-29 03:48:01,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 182 transitions, 4081 flow [2021-04-29 03:48:01,137 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 180 transitions, 4077 flow [2021-04-29 03:48:01,137 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:01,137 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 299 places, 180 transitions, 4077 flow [2021-04-29 03:48:01,138 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 299 places, 180 transitions, 4077 flow [2021-04-29 03:48:01,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 299 places, 180 transitions, 4077 flow [2021-04-29 03:48:01,195 INFO L129 PetriNetUnfolder]: 0/239 cut-off events. [2021-04-29 03:48:01,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:01,195 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. [2021-04-29 03:48:01,216 INFO L146 LiptonReduction]: Number of co-enabled transitions 21004 [2021-04-29 03:48:14,084 INFO L158 LiptonReduction]: Checked pairs total: 8673 [2021-04-29 03:48:14,085 INFO L160 LiptonReduction]: Total number of compositions: 59 [2021-04-29 03:48:14,085 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12948 [2021-04-29 03:48:14,088 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:48:14,088 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:14,088 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:14,089 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:48:14,089 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:14,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:14,089 INFO L82 PathProgramCache]: Analyzing trace with hash 235171, now seen corresponding path program 1 times [2021-04-29 03:48:14,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:14,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457775898] [2021-04-29 03:48:14,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:48:14,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:48:14,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:48:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:48:14,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457775898] [2021-04-29 03:48:14,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:48:14,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:48:14,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208120235] [2021-04-29 03:48:14,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:48:14,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:48:14,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:48:14,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:48:14,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 241 [2021-04-29 03:48:14,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 180 transitions, 4077 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) [2021-04-29 03:48:14,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:48:14,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 241 [2021-04-29 03:48:14,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:48:14,174 INFO L129 PetriNetUnfolder]: 0/179 cut-off events. [2021-04-29 03:48:14,174 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:14,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2129 conditions, 179 events. 0/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 321 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. [2021-04-29 03:48:14,175 INFO L132 encePairwiseOnDemand]: 239/241 looper letters, 0 selfloop transitions, 1 changer transitions 0/179 dead transitions. [2021-04-29 03:48:14,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 179 transitions, 4077 flow [2021-04-29 03:48:14,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:48:14,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:48:14,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 716 transitions. [2021-04-29 03:48:14,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9903181189488244 [2021-04-29 03:48:14,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 716 transitions. [2021-04-29 03:48:14,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 716 transitions. [2021-04-29 03:48:14,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:48:14,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 716 transitions. [2021-04-29 03:48:14,177 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) [2021-04-29 03:48:14,178 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) [2021-04-29 03:48:14,178 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) [2021-04-29 03:48:14,178 INFO L185 Difference]: Start difference. First operand has 299 places, 180 transitions, 4077 flow. Second operand 3 states and 716 transitions. [2021-04-29 03:48:14,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 179 transitions, 4077 flow [2021-04-29 03:48:14,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 179 transitions, 655 flow, removed 1711 selfloop flow, removed 0 redundant places. [2021-04-29 03:48:14,276 INFO L241 Difference]: Finished difference. Result has 300 places, 179 transitions, 655 flow [2021-04-29 03:48:14,277 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=300, PETRI_TRANSITIONS=179} [2021-04-29 03:48:14,277 INFO L343 CegarLoopForPetriNet]: 299 programPoint places, 1 predicate places. [2021-04-29 03:48:14,277 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:14,277 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 300 places, 179 transitions, 655 flow [2021-04-29 03:48:14,277 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 300 places, 179 transitions, 655 flow [2021-04-29 03:48:14,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 300 places, 179 transitions, 655 flow [2021-04-29 03:48:14,305 INFO L129 PetriNetUnfolder]: 0/179 cut-off events. [2021-04-29 03:48:14,305 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:14,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 179 events. 0/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 367 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. [2021-04-29 03:48:14,312 INFO L146 LiptonReduction]: Number of co-enabled transitions 20768 [2021-04-29 03:48:14,330 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:48:14,330 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:48:14,330 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-04-29 03:48:14,333 INFO L480 AbstractCegarLoop]: Abstraction has has 300 places, 179 transitions, 655 flow [2021-04-29 03:48:14,333 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) [2021-04-29 03:48:14,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:14,333 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] [2021-04-29 03:48:14,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-04-29 03:48:14,334 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:14,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:14,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1755309480, now seen corresponding path program 1 times [2021-04-29 03:48:14,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:14,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949247361] [2021-04-29 03:48:14,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:14,347 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:14,351 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:14,363 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:48:14,363 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:48:14,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-04-29 03:48:14,363 WARN L342 ceAbstractionStarter]: 59 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:48:14,363 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 60 thread instances. [2021-04-29 03:48:14,457 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:48:14,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:48:14,458 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:48:14,459 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:48:14,459 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:48:14,459 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:48:14,459 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:48:14,459 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:48:14,459 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:48:14,459 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:48:14,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 306 places, 185 transitions, 4210 flow [2021-04-29 03:48:14,544 INFO L129 PetriNetUnfolder]: 0/365 cut-off events. [2021-04-29 03:48:14,544 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:14,544 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. [2021-04-29 03:48:14,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 185 transitions, 4210 flow [2021-04-29 03:48:14,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 183 transitions, 4206 flow [2021-04-29 03:48:14,547 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:14,547 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 183 transitions, 4206 flow [2021-04-29 03:48:14,547 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 183 transitions, 4206 flow [2021-04-29 03:48:14,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 304 places, 183 transitions, 4206 flow [2021-04-29 03:48:14,612 INFO L129 PetriNetUnfolder]: 0/243 cut-off events. [2021-04-29 03:48:14,612 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:14,612 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. [2021-04-29 03:48:14,634 INFO L146 LiptonReduction]: Number of co-enabled transitions 21720 [2021-04-29 03:48:28,137 INFO L158 LiptonReduction]: Checked pairs total: 8970 [2021-04-29 03:48:28,138 INFO L160 LiptonReduction]: Total number of compositions: 60 [2021-04-29 03:48:28,138 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13592 [2021-04-29 03:48:28,144 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:48:28,145 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:28,145 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:28,145 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:48:28,145 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:28,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:28,145 INFO L82 PathProgramCache]: Analyzing trace with hash 242979, now seen corresponding path program 1 times [2021-04-29 03:48:28,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:28,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185140382] [2021-04-29 03:48:28,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:48:28,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:48:28,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:48:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:48:28,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185140382] [2021-04-29 03:48:28,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:48:28,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:48:28,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695251474] [2021-04-29 03:48:28,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:48:28,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:48:28,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:48:28,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:48:28,172 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 245 [2021-04-29 03:48:28,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 183 transitions, 4206 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) [2021-04-29 03:48:28,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:48:28,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 245 [2021-04-29 03:48:28,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:48:28,282 INFO L129 PetriNetUnfolder]: 0/182 cut-off events. [2021-04-29 03:48:28,282 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:28,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2195 conditions, 182 events. 0/182 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 348 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. [2021-04-29 03:48:28,283 INFO L132 encePairwiseOnDemand]: 243/245 looper letters, 0 selfloop transitions, 1 changer transitions 0/182 dead transitions. [2021-04-29 03:48:28,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 182 transitions, 4206 flow [2021-04-29 03:48:28,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:48:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:48:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 728 transitions. [2021-04-29 03:48:28,285 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9904761904761905 [2021-04-29 03:48:28,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 728 transitions. [2021-04-29 03:48:28,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 728 transitions. [2021-04-29 03:48:28,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:48:28,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 728 transitions. [2021-04-29 03:48:28,287 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) [2021-04-29 03:48:28,288 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) [2021-04-29 03:48:28,288 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) [2021-04-29 03:48:28,288 INFO L185 Difference]: Start difference. First operand has 304 places, 183 transitions, 4206 flow. Second operand 3 states and 728 transitions. [2021-04-29 03:48:28,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 182 transitions, 4206 flow [2021-04-29 03:48:28,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 182 transitions, 666 flow, removed 1770 selfloop flow, removed 0 redundant places. [2021-04-29 03:48:28,462 INFO L241 Difference]: Finished difference. Result has 305 places, 182 transitions, 666 flow [2021-04-29 03:48:28,462 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=303, 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=666, PETRI_PLACES=305, PETRI_TRANSITIONS=182} [2021-04-29 03:48:28,462 INFO L343 CegarLoopForPetriNet]: 304 programPoint places, 1 predicate places. [2021-04-29 03:48:28,462 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:28,462 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 305 places, 182 transitions, 666 flow [2021-04-29 03:48:28,463 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 305 places, 182 transitions, 666 flow [2021-04-29 03:48:28,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 305 places, 182 transitions, 666 flow [2021-04-29 03:48:28,510 INFO L129 PetriNetUnfolder]: 0/182 cut-off events. [2021-04-29 03:48:28,510 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:28,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 182 events. 0/182 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 363 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. [2021-04-29 03:48:28,521 INFO L146 LiptonReduction]: Number of co-enabled transitions 21480 [2021-04-29 03:48:28,549 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:48:28,549 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:48:28,549 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87 [2021-04-29 03:48:28,555 INFO L480 AbstractCegarLoop]: Abstraction has has 305 places, 182 transitions, 666 flow [2021-04-29 03:48:28,555 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) [2021-04-29 03:48:28,555 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:28,557 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] [2021-04-29 03:48:28,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-04-29 03:48:28,558 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:28,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:28,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1829601534, now seen corresponding path program 1 times [2021-04-29 03:48:28,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:28,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528678474] [2021-04-29 03:48:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:28,578 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:28,581 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:28,596 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:48:28,596 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:48:28,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-04-29 03:48:28,597 WARN L342 ceAbstractionStarter]: 60 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:48:28,597 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 61 thread instances. [2021-04-29 03:48:28,692 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:48:28,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:48:28,694 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:48:28,694 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:48:28,695 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:48:28,695 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:48:28,695 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:48:28,695 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:48:28,695 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:48:28,695 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:48:28,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 311 places, 188 transitions, 4341 flow [2021-04-29 03:48:28,828 INFO L129 PetriNetUnfolder]: 0/371 cut-off events. [2021-04-29 03:48:28,828 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:28,828 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. [2021-04-29 03:48:28,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 311 places, 188 transitions, 4341 flow [2021-04-29 03:48:28,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 186 transitions, 4337 flow [2021-04-29 03:48:28,832 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:28,832 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 309 places, 186 transitions, 4337 flow [2021-04-29 03:48:28,832 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 309 places, 186 transitions, 4337 flow [2021-04-29 03:48:28,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 309 places, 186 transitions, 4337 flow [2021-04-29 03:48:28,936 INFO L129 PetriNetUnfolder]: 0/247 cut-off events. [2021-04-29 03:48:28,937 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:28,937 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. [2021-04-29 03:48:28,966 INFO L146 LiptonReduction]: Number of co-enabled transitions 22448 [2021-04-29 03:48:43,496 INFO L158 LiptonReduction]: Checked pairs total: 9272 [2021-04-29 03:48:43,496 INFO L160 LiptonReduction]: Total number of compositions: 61 [2021-04-29 03:48:43,496 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14664 [2021-04-29 03:48:43,500 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:48:43,500 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:43,500 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:43,500 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:48:43,500 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:43,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:43,501 INFO L82 PathProgramCache]: Analyzing trace with hash 250915, now seen corresponding path program 1 times [2021-04-29 03:48:43,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:43,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197748089] [2021-04-29 03:48:43,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:48:43,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:48:43,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:48:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:48:43,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197748089] [2021-04-29 03:48:43,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:48:43,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:48:43,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161596473] [2021-04-29 03:48:43,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:48:43,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:48:43,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:48:43,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:48:43,520 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 249 [2021-04-29 03:48:43,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 186 transitions, 4337 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) [2021-04-29 03:48:43,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:48:43,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 249 [2021-04-29 03:48:43,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:48:43,587 INFO L129 PetriNetUnfolder]: 0/185 cut-off events. [2021-04-29 03:48:43,587 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:43,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2262 conditions, 185 events. 0/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 405 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. [2021-04-29 03:48:43,587 INFO L132 encePairwiseOnDemand]: 247/249 looper letters, 0 selfloop transitions, 1 changer transitions 0/185 dead transitions. [2021-04-29 03:48:43,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 185 transitions, 4337 flow [2021-04-29 03:48:43,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:48:43,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:48:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 740 transitions. [2021-04-29 03:48:43,588 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9906291834002677 [2021-04-29 03:48:43,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 740 transitions. [2021-04-29 03:48:43,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 740 transitions. [2021-04-29 03:48:43,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:48:43,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 740 transitions. [2021-04-29 03:48:43,590 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) [2021-04-29 03:48:43,591 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) [2021-04-29 03:48:43,591 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) [2021-04-29 03:48:43,591 INFO L185 Difference]: Start difference. First operand has 309 places, 186 transitions, 4337 flow. Second operand 3 states and 740 transitions. [2021-04-29 03:48:43,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 185 transitions, 4337 flow [2021-04-29 03:48:43,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 185 transitions, 677 flow, removed 1830 selfloop flow, removed 0 redundant places. [2021-04-29 03:48:43,701 INFO L241 Difference]: Finished difference. Result has 310 places, 185 transitions, 677 flow [2021-04-29 03:48:43,701 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=310, PETRI_TRANSITIONS=185} [2021-04-29 03:48:43,702 INFO L343 CegarLoopForPetriNet]: 309 programPoint places, 1 predicate places. [2021-04-29 03:48:43,702 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:43,702 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 310 places, 185 transitions, 677 flow [2021-04-29 03:48:43,702 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 310 places, 185 transitions, 677 flow [2021-04-29 03:48:43,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 310 places, 185 transitions, 677 flow [2021-04-29 03:48:43,743 INFO L129 PetriNetUnfolder]: 0/185 cut-off events. [2021-04-29 03:48:43,744 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:43,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 185 events. 0/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 379 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. [2021-04-29 03:48:43,750 INFO L146 LiptonReduction]: Number of co-enabled transitions 22204 [2021-04-29 03:48:43,769 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:48:43,769 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:48:43,769 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-04-29 03:48:43,772 INFO L480 AbstractCegarLoop]: Abstraction has has 310 places, 185 transitions, 677 flow [2021-04-29 03:48:43,772 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) [2021-04-29 03:48:43,772 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:43,772 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] [2021-04-29 03:48:43,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-04-29 03:48:43,772 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:43,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:43,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1408131485, now seen corresponding path program 1 times [2021-04-29 03:48:43,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:43,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742428109] [2021-04-29 03:48:43,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:43,786 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:43,790 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:43,802 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:48:43,802 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:48:43,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-04-29 03:48:43,803 WARN L342 ceAbstractionStarter]: 61 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:48:43,803 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 62 thread instances. [2021-04-29 03:48:43,905 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:48:43,906 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:48:43,907 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:48:43,907 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:48:43,907 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:48:43,907 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:48:43,907 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:48:43,908 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:48:43,908 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:48:43,908 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:48:43,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 316 places, 191 transitions, 4474 flow [2021-04-29 03:48:44,000 INFO L129 PetriNetUnfolder]: 0/377 cut-off events. [2021-04-29 03:48:44,000 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:44,000 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. [2021-04-29 03:48:44,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 316 places, 191 transitions, 4474 flow [2021-04-29 03:48:44,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 314 places, 189 transitions, 4470 flow [2021-04-29 03:48:44,003 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:44,003 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 314 places, 189 transitions, 4470 flow [2021-04-29 03:48:44,003 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 314 places, 189 transitions, 4470 flow [2021-04-29 03:48:44,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 314 places, 189 transitions, 4470 flow [2021-04-29 03:48:44,070 INFO L129 PetriNetUnfolder]: 0/251 cut-off events. [2021-04-29 03:48:44,070 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:44,071 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. [2021-04-29 03:48:44,107 INFO L146 LiptonReduction]: Number of co-enabled transitions 23188 [2021-04-29 03:48:59,407 INFO L158 LiptonReduction]: Checked pairs total: 9579 [2021-04-29 03:48:59,407 INFO L160 LiptonReduction]: Total number of compositions: 62 [2021-04-29 03:48:59,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15404 [2021-04-29 03:48:59,414 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:48:59,414 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:59,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:59,414 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:48:59,414 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:59,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:59,414 INFO L82 PathProgramCache]: Analyzing trace with hash 258979, now seen corresponding path program 1 times [2021-04-29 03:48:59,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:59,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289155938] [2021-04-29 03:48:59,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:48:59,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:48:59,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:48:59,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:48:59,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289155938] [2021-04-29 03:48:59,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:48:59,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:48:59,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863292282] [2021-04-29 03:48:59,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:48:59,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:48:59,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:48:59,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:48:59,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 253 [2021-04-29 03:48:59,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 189 transitions, 4470 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) [2021-04-29 03:48:59,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:48:59,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 253 [2021-04-29 03:48:59,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:48:59,504 INFO L129 PetriNetUnfolder]: 0/188 cut-off events. [2021-04-29 03:48:59,504 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:59,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2330 conditions, 188 events. 0/188 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 366 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. [2021-04-29 03:48:59,505 INFO L132 encePairwiseOnDemand]: 251/253 looper letters, 0 selfloop transitions, 1 changer transitions 0/188 dead transitions. [2021-04-29 03:48:59,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 188 transitions, 4470 flow [2021-04-29 03:48:59,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:48:59,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:48:59,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 752 transitions. [2021-04-29 03:48:59,506 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9907773386034255 [2021-04-29 03:48:59,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 752 transitions. [2021-04-29 03:48:59,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 752 transitions. [2021-04-29 03:48:59,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:48:59,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 752 transitions. [2021-04-29 03:48:59,507 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) [2021-04-29 03:48:59,508 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) [2021-04-29 03:48:59,508 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) [2021-04-29 03:48:59,508 INFO L185 Difference]: Start difference. First operand has 314 places, 189 transitions, 4470 flow. Second operand 3 states and 752 transitions. [2021-04-29 03:48:59,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 188 transitions, 4470 flow [2021-04-29 03:48:59,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 188 transitions, 688 flow, removed 1891 selfloop flow, removed 0 redundant places. [2021-04-29 03:48:59,630 INFO L241 Difference]: Finished difference. Result has 315 places, 188 transitions, 688 flow [2021-04-29 03:48:59,630 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=313, 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=688, PETRI_PLACES=315, PETRI_TRANSITIONS=188} [2021-04-29 03:48:59,630 INFO L343 CegarLoopForPetriNet]: 314 programPoint places, 1 predicate places. [2021-04-29 03:48:59,630 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:59,630 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 315 places, 188 transitions, 688 flow [2021-04-29 03:48:59,630 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 315 places, 188 transitions, 688 flow [2021-04-29 03:48:59,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 315 places, 188 transitions, 688 flow [2021-04-29 03:48:59,660 INFO L129 PetriNetUnfolder]: 0/188 cut-off events. [2021-04-29 03:48:59,661 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:59,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 188 events. 0/188 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 378 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. [2021-04-29 03:48:59,667 INFO L146 LiptonReduction]: Number of co-enabled transitions 22940 [2021-04-29 03:48:59,686 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:48:59,686 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:48:59,686 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-04-29 03:48:59,691 INFO L480 AbstractCegarLoop]: Abstraction has has 315 places, 188 transitions, 688 flow [2021-04-29 03:48:59,691 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) [2021-04-29 03:48:59,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:48:59,691 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] [2021-04-29 03:48:59,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-04-29 03:48:59,692 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:48:59,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:48:59,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1519600837, now seen corresponding path program 1 times [2021-04-29 03:48:59,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:48:59,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397204273] [2021-04-29 03:48:59,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:48:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:59,706 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:48:59,710 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:48:59,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:48:59,722 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:48:59,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-04-29 03:48:59,723 WARN L342 ceAbstractionStarter]: 62 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:48:59,723 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 63 thread instances. [2021-04-29 03:48:59,826 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:48:59,827 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:48:59,828 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:48:59,828 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:48:59,828 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:48:59,828 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:48:59,828 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:48:59,828 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:48:59,828 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:48:59,828 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:48:59,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 321 places, 194 transitions, 4609 flow [2021-04-29 03:48:59,927 INFO L129 PetriNetUnfolder]: 0/383 cut-off events. [2021-04-29 03:48:59,927 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:59,927 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. [2021-04-29 03:48:59,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 194 transitions, 4609 flow [2021-04-29 03:48:59,929 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 319 places, 192 transitions, 4605 flow [2021-04-29 03:48:59,930 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:48:59,930 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 319 places, 192 transitions, 4605 flow [2021-04-29 03:48:59,930 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 319 places, 192 transitions, 4605 flow [2021-04-29 03:48:59,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 319 places, 192 transitions, 4605 flow [2021-04-29 03:48:59,997 INFO L129 PetriNetUnfolder]: 0/255 cut-off events. [2021-04-29 03:48:59,998 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:48:59,998 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. [2021-04-29 03:49:00,022 INFO L146 LiptonReduction]: Number of co-enabled transitions 23940 [2021-04-29 03:49:16,087 INFO L158 LiptonReduction]: Checked pairs total: 9891 [2021-04-29 03:49:16,087 INFO L160 LiptonReduction]: Total number of compositions: 63 [2021-04-29 03:49:16,087 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16157 [2021-04-29 03:49:16,092 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:49:16,092 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:16,093 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:49:16,093 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:49:16,093 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:49:16,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:49:16,093 INFO L82 PathProgramCache]: Analyzing trace with hash 267171, now seen corresponding path program 1 times [2021-04-29 03:49:16,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:49:16,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916938540] [2021-04-29 03:49:16,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:49:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:49:16,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:49:16,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:49:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:49:16,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916938540] [2021-04-29 03:49:16,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:49:16,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:49:16,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661723250] [2021-04-29 03:49:16,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:49:16,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:49:16,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:49:16,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:49:16,115 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 257 [2021-04-29 03:49:16,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 192 transitions, 4605 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) [2021-04-29 03:49:16,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:49:16,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 257 [2021-04-29 03:49:16,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:49:16,187 INFO L129 PetriNetUnfolder]: 0/191 cut-off events. [2021-04-29 03:49:16,187 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:16,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2399 conditions, 191 events. 0/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 363 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. [2021-04-29 03:49:16,187 INFO L132 encePairwiseOnDemand]: 255/257 looper letters, 0 selfloop transitions, 1 changer transitions 0/191 dead transitions. [2021-04-29 03:49:16,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 191 transitions, 4605 flow [2021-04-29 03:49:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:49:16,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:49:16,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 764 transitions. [2021-04-29 03:49:16,188 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9909208819714657 [2021-04-29 03:49:16,188 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 764 transitions. [2021-04-29 03:49:16,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 764 transitions. [2021-04-29 03:49:16,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:49:16,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 764 transitions. [2021-04-29 03:49:16,190 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) [2021-04-29 03:49:16,190 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) [2021-04-29 03:49:16,191 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) [2021-04-29 03:49:16,191 INFO L185 Difference]: Start difference. First operand has 319 places, 192 transitions, 4605 flow. Second operand 3 states and 764 transitions. [2021-04-29 03:49:16,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 191 transitions, 4605 flow [2021-04-29 03:49:16,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 191 transitions, 699 flow, removed 1953 selfloop flow, removed 0 redundant places. [2021-04-29 03:49:16,326 INFO L241 Difference]: Finished difference. Result has 320 places, 191 transitions, 699 flow [2021-04-29 03:49:16,326 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=699, PETRI_PLACES=320, PETRI_TRANSITIONS=191} [2021-04-29 03:49:16,326 INFO L343 CegarLoopForPetriNet]: 319 programPoint places, 1 predicate places. [2021-04-29 03:49:16,326 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:49:16,326 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 320 places, 191 transitions, 699 flow [2021-04-29 03:49:16,326 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 320 places, 191 transitions, 699 flow [2021-04-29 03:49:16,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 320 places, 191 transitions, 699 flow [2021-04-29 03:49:16,357 INFO L129 PetriNetUnfolder]: 0/191 cut-off events. [2021-04-29 03:49:16,357 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:16,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 191 events. 0/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 331 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. [2021-04-29 03:49:16,364 INFO L146 LiptonReduction]: Number of co-enabled transitions 23688 [2021-04-29 03:49:16,384 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:49:16,384 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:49:16,384 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-04-29 03:49:16,387 INFO L480 AbstractCegarLoop]: Abstraction has has 320 places, 191 transitions, 699 flow [2021-04-29 03:49:16,388 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) [2021-04-29 03:49:16,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:49:16,388 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] [2021-04-29 03:49:16,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-04-29 03:49:16,388 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:49:16,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:49:16,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2027780994, now seen corresponding path program 1 times [2021-04-29 03:49:16,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:49:16,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076975359] [2021-04-29 03:49:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:49:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:49:16,402 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:49:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:49:16,406 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:49:16,419 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:49:16,419 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:49:16,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-04-29 03:49:16,419 WARN L342 ceAbstractionStarter]: 63 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:49:16,419 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 64 thread instances. [2021-04-29 03:49:16,541 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:49:16,541 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:49:16,542 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:49:16,542 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:49:16,542 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:49:16,542 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:49:16,543 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:49:16,543 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:49:16,543 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:49:16,543 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:49:16,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 326 places, 197 transitions, 4746 flow [2021-04-29 03:49:16,643 INFO L129 PetriNetUnfolder]: 0/389 cut-off events. [2021-04-29 03:49:16,643 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:16,643 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. [2021-04-29 03:49:16,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 326 places, 197 transitions, 4746 flow [2021-04-29 03:49:16,645 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 195 transitions, 4742 flow [2021-04-29 03:49:16,646 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:49:16,646 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 195 transitions, 4742 flow [2021-04-29 03:49:16,646 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 195 transitions, 4742 flow [2021-04-29 03:49:16,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 324 places, 195 transitions, 4742 flow [2021-04-29 03:49:16,716 INFO L129 PetriNetUnfolder]: 0/259 cut-off events. [2021-04-29 03:49:16,716 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:16,716 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. [2021-04-29 03:49:16,742 INFO L146 LiptonReduction]: Number of co-enabled transitions 24704 [2021-04-29 03:49:33,644 INFO L158 LiptonReduction]: Checked pairs total: 10208 [2021-04-29 03:49:33,645 INFO L160 LiptonReduction]: Total number of compositions: 64 [2021-04-29 03:49:33,645 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16999 [2021-04-29 03:49:33,649 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:49:33,649 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:33,649 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:49:33,649 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:49:33,649 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:49:33,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:49:33,649 INFO L82 PathProgramCache]: Analyzing trace with hash 275491, now seen corresponding path program 1 times [2021-04-29 03:49:33,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:49:33,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506201409] [2021-04-29 03:49:33,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:49:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:49:33,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:49:33,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:49:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:49:33,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506201409] [2021-04-29 03:49:33,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:49:33,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:49:33,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379042170] [2021-04-29 03:49:33,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:49:33,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:49:33,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:49:33,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:49:33,675 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 261 [2021-04-29 03:49:33,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 195 transitions, 4742 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) [2021-04-29 03:49:33,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:49:33,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 261 [2021-04-29 03:49:33,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:49:33,749 INFO L129 PetriNetUnfolder]: 0/194 cut-off events. [2021-04-29 03:49:33,749 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:33,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2469 conditions, 194 events. 0/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 450 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. [2021-04-29 03:49:33,750 INFO L132 encePairwiseOnDemand]: 259/261 looper letters, 0 selfloop transitions, 1 changer transitions 0/194 dead transitions. [2021-04-29 03:49:33,750 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 194 transitions, 4742 flow [2021-04-29 03:49:33,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:49:33,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:49:33,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 776 transitions. [2021-04-29 03:49:33,751 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9910600255427842 [2021-04-29 03:49:33,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 776 transitions. [2021-04-29 03:49:33,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 776 transitions. [2021-04-29 03:49:33,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:49:33,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 776 transitions. [2021-04-29 03:49:33,753 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) [2021-04-29 03:49:33,754 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) [2021-04-29 03:49:33,754 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) [2021-04-29 03:49:33,754 INFO L185 Difference]: Start difference. First operand has 324 places, 195 transitions, 4742 flow. Second operand 3 states and 776 transitions. [2021-04-29 03:49:33,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 194 transitions, 4742 flow [2021-04-29 03:49:33,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 194 transitions, 710 flow, removed 2016 selfloop flow, removed 0 redundant places. [2021-04-29 03:49:33,899 INFO L241 Difference]: Finished difference. Result has 325 places, 194 transitions, 710 flow [2021-04-29 03:49:33,899 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=325, PETRI_TRANSITIONS=194} [2021-04-29 03:49:33,899 INFO L343 CegarLoopForPetriNet]: 324 programPoint places, 1 predicate places. [2021-04-29 03:49:33,900 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:49:33,900 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 325 places, 194 transitions, 710 flow [2021-04-29 03:49:33,900 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 325 places, 194 transitions, 710 flow [2021-04-29 03:49:33,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 194 transitions, 710 flow [2021-04-29 03:49:33,936 INFO L129 PetriNetUnfolder]: 0/194 cut-off events. [2021-04-29 03:49:33,937 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:33,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 194 events. 0/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 382 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. [2021-04-29 03:49:33,946 INFO L146 LiptonReduction]: Number of co-enabled transitions 24448 [2021-04-29 03:49:33,968 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:49:33,968 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:49:33,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-04-29 03:49:33,972 INFO L480 AbstractCegarLoop]: Abstraction has has 325 places, 194 transitions, 710 flow [2021-04-29 03:49:33,973 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) [2021-04-29 03:49:33,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:49:33,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:49:33,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-04-29 03:49:33,973 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:49:33,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:49:33,974 INFO L82 PathProgramCache]: Analyzing trace with hash -438281080, now seen corresponding path program 1 times [2021-04-29 03:49:33,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:49:33,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321349431] [2021-04-29 03:49:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:49:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:49:33,989 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:49:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:49:33,993 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:49:34,006 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:49:34,006 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:49:34,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-04-29 03:49:34,006 WARN L342 ceAbstractionStarter]: 64 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:49:34,006 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 65 thread instances. [2021-04-29 03:49:34,122 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:49:34,122 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:49:34,123 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:49:34,123 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:49:34,123 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:49:34,123 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:49:34,123 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:49:34,123 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:49:34,124 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:49:34,124 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:49:34,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 331 places, 200 transitions, 4885 flow [2021-04-29 03:49:34,236 INFO L129 PetriNetUnfolder]: 0/395 cut-off events. [2021-04-29 03:49:34,237 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:34,237 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. [2021-04-29 03:49:34,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 331 places, 200 transitions, 4885 flow [2021-04-29 03:49:34,239 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 198 transitions, 4881 flow [2021-04-29 03:49:34,240 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:49:34,240 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 198 transitions, 4881 flow [2021-04-29 03:49:34,240 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 198 transitions, 4881 flow [2021-04-29 03:49:34,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 329 places, 198 transitions, 4881 flow [2021-04-29 03:49:34,313 INFO L129 PetriNetUnfolder]: 0/263 cut-off events. [2021-04-29 03:49:34,313 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:34,313 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. [2021-04-29 03:49:34,339 INFO L146 LiptonReduction]: Number of co-enabled transitions 25480 [2021-04-29 03:49:51,955 INFO L158 LiptonReduction]: Checked pairs total: 10530 [2021-04-29 03:49:51,955 INFO L160 LiptonReduction]: Total number of compositions: 65 [2021-04-29 03:49:51,956 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17716 [2021-04-29 03:49:51,962 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:49:51,962 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:51,962 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:49:51,962 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:49:51,962 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:49:51,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:49:51,962 INFO L82 PathProgramCache]: Analyzing trace with hash 283939, now seen corresponding path program 1 times [2021-04-29 03:49:51,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:49:51,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401647415] [2021-04-29 03:49:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:49:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:49:51,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:49:51,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:49:51,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:49:51,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401647415] [2021-04-29 03:49:51,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:49:51,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:49:51,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930339016] [2021-04-29 03:49:51,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:49:51,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:49:51,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:49:51,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:49:51,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 265 [2021-04-29 03:49:51,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 198 transitions, 4881 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) [2021-04-29 03:49:51,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:49:51,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 265 [2021-04-29 03:49:51,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:49:52,066 INFO L129 PetriNetUnfolder]: 0/197 cut-off events. [2021-04-29 03:49:52,067 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:52,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2540 conditions, 197 events. 0/197 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 381 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. [2021-04-29 03:49:52,067 INFO L132 encePairwiseOnDemand]: 263/265 looper letters, 0 selfloop transitions, 1 changer transitions 0/197 dead transitions. [2021-04-29 03:49:52,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 197 transitions, 4881 flow [2021-04-29 03:49:52,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:49:52,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:49:52,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2021-04-29 03:49:52,068 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9911949685534591 [2021-04-29 03:49:52,068 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 788 transitions. [2021-04-29 03:49:52,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 788 transitions. [2021-04-29 03:49:52,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:49:52,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 788 transitions. [2021-04-29 03:49:52,069 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) [2021-04-29 03:49:52,070 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) [2021-04-29 03:49:52,070 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) [2021-04-29 03:49:52,070 INFO L185 Difference]: Start difference. First operand has 329 places, 198 transitions, 4881 flow. Second operand 3 states and 788 transitions. [2021-04-29 03:49:52,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 197 transitions, 4881 flow [2021-04-29 03:49:52,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 197 transitions, 721 flow, removed 2080 selfloop flow, removed 0 redundant places. [2021-04-29 03:49:52,223 INFO L241 Difference]: Finished difference. Result has 330 places, 197 transitions, 721 flow [2021-04-29 03:49:52,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=721, PETRI_PLACES=330, PETRI_TRANSITIONS=197} [2021-04-29 03:49:52,224 INFO L343 CegarLoopForPetriNet]: 329 programPoint places, 1 predicate places. [2021-04-29 03:49:52,224 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:49:52,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 330 places, 197 transitions, 721 flow [2021-04-29 03:49:52,224 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 330 places, 197 transitions, 721 flow [2021-04-29 03:49:52,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 330 places, 197 transitions, 721 flow [2021-04-29 03:49:52,257 INFO L129 PetriNetUnfolder]: 0/197 cut-off events. [2021-04-29 03:49:52,257 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:52,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 197 events. 0/197 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 410 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. [2021-04-29 03:49:52,264 INFO L146 LiptonReduction]: Number of co-enabled transitions 25220 [2021-04-29 03:49:52,285 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:49:52,285 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:49:52,286 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-04-29 03:49:52,291 INFO L480 AbstractCegarLoop]: Abstraction has has 330 places, 197 transitions, 721 flow [2021-04-29 03:49:52,291 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) [2021-04-29 03:49:52,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:49:52,291 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] [2021-04-29 03:49:52,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-04-29 03:49:52,292 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:49:52,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:49:52,292 INFO L82 PathProgramCache]: Analyzing trace with hash 19023529, now seen corresponding path program 1 times [2021-04-29 03:49:52,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:49:52,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136495105] [2021-04-29 03:49:52,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:49:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:49:52,307 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:49:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:49:52,310 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:49:52,324 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:49:52,324 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:49:52,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-04-29 03:49:52,324 WARN L342 ceAbstractionStarter]: 65 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:49:52,324 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 66 thread instances. [2021-04-29 03:49:52,454 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:49:52,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:49:52,455 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:49:52,455 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:49:52,455 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:49:52,455 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:49:52,455 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:49:52,455 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:49:52,455 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:49:52,455 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:49:52,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 336 places, 203 transitions, 5026 flow [2021-04-29 03:49:52,706 INFO L129 PetriNetUnfolder]: 0/401 cut-off events. [2021-04-29 03:49:52,707 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:52,707 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. [2021-04-29 03:49:52,707 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 203 transitions, 5026 flow [2021-04-29 03:49:52,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 334 places, 201 transitions, 5022 flow [2021-04-29 03:49:52,710 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:49:52,711 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 334 places, 201 transitions, 5022 flow [2021-04-29 03:49:52,711 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 334 places, 201 transitions, 5022 flow [2021-04-29 03:49:52,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 334 places, 201 transitions, 5022 flow [2021-04-29 03:49:52,782 INFO L129 PetriNetUnfolder]: 0/267 cut-off events. [2021-04-29 03:49:52,782 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:49:52,782 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. [2021-04-29 03:49:52,810 INFO L146 LiptonReduction]: Number of co-enabled transitions 26268 [2021-04-29 03:50:12,039 INFO L158 LiptonReduction]: Checked pairs total: 10857 [2021-04-29 03:50:12,039 INFO L160 LiptonReduction]: Total number of compositions: 66 [2021-04-29 03:50:12,040 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19330 [2021-04-29 03:50:12,046 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:50:12,046 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:12,046 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:50:12,046 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:50:12,046 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:50:12,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:50:12,047 INFO L82 PathProgramCache]: Analyzing trace with hash 292515, now seen corresponding path program 1 times [2021-04-29 03:50:12,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:50:12,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116396875] [2021-04-29 03:50:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:50:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:50:12,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:50:12,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:50:12,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:50:12,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116396875] [2021-04-29 03:50:12,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:50:12,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:50:12,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345048632] [2021-04-29 03:50:12,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:50:12,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:50:12,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:50:12,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:50:12,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 269 [2021-04-29 03:50:12,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 201 transitions, 5022 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) [2021-04-29 03:50:12,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:50:12,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 269 [2021-04-29 03:50:12,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:50:12,144 INFO L129 PetriNetUnfolder]: 0/200 cut-off events. [2021-04-29 03:50:12,144 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:12,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2612 conditions, 200 events. 0/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 438 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. [2021-04-29 03:50:12,145 INFO L132 encePairwiseOnDemand]: 267/269 looper letters, 0 selfloop transitions, 1 changer transitions 0/200 dead transitions. [2021-04-29 03:50:12,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 200 transitions, 5022 flow [2021-04-29 03:50:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:50:12,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:50:12,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2021-04-29 03:50:12,146 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9913258983890955 [2021-04-29 03:50:12,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 800 transitions. [2021-04-29 03:50:12,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 800 transitions. [2021-04-29 03:50:12,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:50:12,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 800 transitions. [2021-04-29 03:50:12,147 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) [2021-04-29 03:50:12,148 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) [2021-04-29 03:50:12,148 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) [2021-04-29 03:50:12,148 INFO L185 Difference]: Start difference. First operand has 334 places, 201 transitions, 5022 flow. Second operand 3 states and 800 transitions. [2021-04-29 03:50:12,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 200 transitions, 5022 flow [2021-04-29 03:50:12,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 200 transitions, 732 flow, removed 2145 selfloop flow, removed 0 redundant places. [2021-04-29 03:50:12,299 INFO L241 Difference]: Finished difference. Result has 335 places, 200 transitions, 732 flow [2021-04-29 03:50:12,300 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=732, PETRI_PLACES=335, PETRI_TRANSITIONS=200} [2021-04-29 03:50:12,300 INFO L343 CegarLoopForPetriNet]: 334 programPoint places, 1 predicate places. [2021-04-29 03:50:12,300 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:50:12,300 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 335 places, 200 transitions, 732 flow [2021-04-29 03:50:12,300 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 335 places, 200 transitions, 732 flow [2021-04-29 03:50:12,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 335 places, 200 transitions, 732 flow [2021-04-29 03:50:12,485 INFO L129 PetriNetUnfolder]: 0/200 cut-off events. [2021-04-29 03:50:12,485 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:12,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 200 events. 0/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 362 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. [2021-04-29 03:50:12,492 INFO L146 LiptonReduction]: Number of co-enabled transitions 26004 [2021-04-29 03:50:12,514 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:50:12,514 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:50:12,515 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 215 [2021-04-29 03:50:12,519 INFO L480 AbstractCegarLoop]: Abstraction has has 335 places, 200 transitions, 732 flow [2021-04-29 03:50:12,520 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) [2021-04-29 03:50:12,520 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:50:12,520 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:50:12,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-04-29 03:50:12,520 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:50:12,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:50:12,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1713949771, now seen corresponding path program 1 times [2021-04-29 03:50:12,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:50:12,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637951342] [2021-04-29 03:50:12,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:50:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:50:12,541 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:50:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:50:12,545 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:50:12,558 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:50:12,558 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:50:12,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-04-29 03:50:12,558 WARN L342 ceAbstractionStarter]: 66 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:50:12,559 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 67 thread instances. [2021-04-29 03:50:12,684 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:50:12,685 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:50:12,685 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:50:12,685 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:50:12,685 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:50:12,685 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:50:12,685 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:50:12,686 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:50:12,686 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:50:12,686 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:50:12,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 341 places, 206 transitions, 5169 flow [2021-04-29 03:50:12,783 INFO L129 PetriNetUnfolder]: 0/407 cut-off events. [2021-04-29 03:50:12,783 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:12,783 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. [2021-04-29 03:50:12,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 206 transitions, 5169 flow [2021-04-29 03:50:12,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 339 places, 204 transitions, 5165 flow [2021-04-29 03:50:12,786 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:50:12,786 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 339 places, 204 transitions, 5165 flow [2021-04-29 03:50:12,786 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 339 places, 204 transitions, 5165 flow [2021-04-29 03:50:12,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 339 places, 204 transitions, 5165 flow [2021-04-29 03:50:12,862 INFO L129 PetriNetUnfolder]: 0/271 cut-off events. [2021-04-29 03:50:12,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:12,862 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. [2021-04-29 03:50:12,891 INFO L146 LiptonReduction]: Number of co-enabled transitions 27068 [2021-04-29 03:50:32,787 INFO L158 LiptonReduction]: Checked pairs total: 11189 [2021-04-29 03:50:32,788 INFO L160 LiptonReduction]: Total number of compositions: 67 [2021-04-29 03:50:32,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20002 [2021-04-29 03:50:32,794 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:50:32,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:32,794 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:50:32,794 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:50:32,794 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:50:32,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:50:32,795 INFO L82 PathProgramCache]: Analyzing trace with hash 301219, now seen corresponding path program 1 times [2021-04-29 03:50:32,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:50:32,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445454258] [2021-04-29 03:50:32,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:50:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:50:32,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:50:32,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:50:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:50:32,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445454258] [2021-04-29 03:50:32,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:50:32,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:50:32,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618974941] [2021-04-29 03:50:32,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:50:32,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:50:32,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:50:32,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:50:32,817 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 273 [2021-04-29 03:50:32,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 204 transitions, 5165 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) [2021-04-29 03:50:32,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:50:32,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 273 [2021-04-29 03:50:32,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:50:32,900 INFO L129 PetriNetUnfolder]: 0/203 cut-off events. [2021-04-29 03:50:32,900 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:32,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2685 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 393 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. [2021-04-29 03:50:32,901 INFO L132 encePairwiseOnDemand]: 271/273 looper letters, 0 selfloop transitions, 1 changer transitions 0/203 dead transitions. [2021-04-29 03:50:32,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 203 transitions, 5165 flow [2021-04-29 03:50:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:50:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:50:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2021-04-29 03:50:32,902 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9914529914529915 [2021-04-29 03:50:32,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2021-04-29 03:50:32,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2021-04-29 03:50:32,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:50:32,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2021-04-29 03:50:32,903 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) [2021-04-29 03:50:32,903 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) [2021-04-29 03:50:32,904 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) [2021-04-29 03:50:32,904 INFO L185 Difference]: Start difference. First operand has 339 places, 204 transitions, 5165 flow. Second operand 3 states and 812 transitions. [2021-04-29 03:50:32,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 203 transitions, 5165 flow [2021-04-29 03:50:33,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 203 transitions, 743 flow, removed 2211 selfloop flow, removed 0 redundant places. [2021-04-29 03:50:33,052 INFO L241 Difference]: Finished difference. Result has 340 places, 203 transitions, 743 flow [2021-04-29 03:50:33,052 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=743, PETRI_PLACES=340, PETRI_TRANSITIONS=203} [2021-04-29 03:50:33,052 INFO L343 CegarLoopForPetriNet]: 339 programPoint places, 1 predicate places. [2021-04-29 03:50:33,053 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:50:33,053 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 340 places, 203 transitions, 743 flow [2021-04-29 03:50:33,053 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 340 places, 203 transitions, 743 flow [2021-04-29 03:50:33,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 340 places, 203 transitions, 743 flow [2021-04-29 03:50:33,087 INFO L129 PetriNetUnfolder]: 0/203 cut-off events. [2021-04-29 03:50:33,087 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:33,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 456 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. [2021-04-29 03:50:33,095 INFO L146 LiptonReduction]: Number of co-enabled transitions 26800 [2021-04-29 03:50:33,118 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:50:33,118 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:50:33,118 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-04-29 03:50:33,124 INFO L480 AbstractCegarLoop]: Abstraction has has 340 places, 203 transitions, 743 flow [2021-04-29 03:50:33,124 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) [2021-04-29 03:50:33,124 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:50:33,124 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] [2021-04-29 03:50:33,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-04-29 03:50:33,124 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:50:33,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:50:33,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1351835364, now seen corresponding path program 1 times [2021-04-29 03:50:33,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:50:33,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97310988] [2021-04-29 03:50:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:50:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:50:33,140 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:50:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:50:33,144 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:50:33,157 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:50:33,158 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:50:33,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-04-29 03:50:33,158 WARN L342 ceAbstractionStarter]: 67 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:50:33,158 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 68 thread instances. [2021-04-29 03:50:33,283 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:50:33,283 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:50:33,284 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:50:33,284 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:50:33,284 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:50:33,284 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:50:33,284 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:50:33,284 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:50:33,284 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:50:33,284 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:50:33,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 346 places, 209 transitions, 5314 flow [2021-04-29 03:50:33,387 INFO L129 PetriNetUnfolder]: 0/413 cut-off events. [2021-04-29 03:50:33,387 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:33,387 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. [2021-04-29 03:50:33,387 INFO L82 GeneralOperation]: Start removeDead. Operand has 346 places, 209 transitions, 5314 flow [2021-04-29 03:50:33,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 344 places, 207 transitions, 5310 flow [2021-04-29 03:50:33,390 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:50:33,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 207 transitions, 5310 flow [2021-04-29 03:50:33,390 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 207 transitions, 5310 flow [2021-04-29 03:50:33,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 344 places, 207 transitions, 5310 flow [2021-04-29 03:50:33,473 INFO L129 PetriNetUnfolder]: 0/275 cut-off events. [2021-04-29 03:50:33,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:33,473 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. [2021-04-29 03:50:33,502 INFO L146 LiptonReduction]: Number of co-enabled transitions 27880 [2021-04-29 03:50:54,641 INFO L158 LiptonReduction]: Checked pairs total: 11526 [2021-04-29 03:50:54,641 INFO L160 LiptonReduction]: Total number of compositions: 68 [2021-04-29 03:50:54,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21251 [2021-04-29 03:50:54,647 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:50:54,647 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:54,647 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:50:54,647 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:50:54,647 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:50:54,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:50:54,647 INFO L82 PathProgramCache]: Analyzing trace with hash 310051, now seen corresponding path program 1 times [2021-04-29 03:50:54,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:50:54,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403571696] [2021-04-29 03:50:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:50:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:50:54,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:50:54,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:50:54,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:50:54,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403571696] [2021-04-29 03:50:54,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:50:54,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:50:54,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463970200] [2021-04-29 03:50:54,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:50:54,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:50:54,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:50:54,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:50:54,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 277 [2021-04-29 03:50:54,670 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 207 transitions, 5310 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) [2021-04-29 03:50:54,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:50:54,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 277 [2021-04-29 03:50:54,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:50:54,785 INFO L129 PetriNetUnfolder]: 0/206 cut-off events. [2021-04-29 03:50:54,785 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:54,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2759 conditions, 206 events. 0/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 516 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. [2021-04-29 03:50:54,786 INFO L132 encePairwiseOnDemand]: 275/277 looper letters, 0 selfloop transitions, 1 changer transitions 0/206 dead transitions. [2021-04-29 03:50:54,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 206 transitions, 5310 flow [2021-04-29 03:50:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:50:54,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:50:54,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 824 transitions. [2021-04-29 03:50:54,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9915764139590855 [2021-04-29 03:50:54,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 824 transitions. [2021-04-29 03:50:54,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 824 transitions. [2021-04-29 03:50:54,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:50:54,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 824 transitions. [2021-04-29 03:50:54,789 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) [2021-04-29 03:50:54,791 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) [2021-04-29 03:50:54,791 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) [2021-04-29 03:50:54,791 INFO L185 Difference]: Start difference. First operand has 344 places, 207 transitions, 5310 flow. Second operand 3 states and 824 transitions. [2021-04-29 03:50:54,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 206 transitions, 5310 flow [2021-04-29 03:50:54,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 206 transitions, 754 flow, removed 2278 selfloop flow, removed 0 redundant places. [2021-04-29 03:50:54,999 INFO L241 Difference]: Finished difference. Result has 345 places, 206 transitions, 754 flow [2021-04-29 03:50:55,000 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=345, PETRI_TRANSITIONS=206} [2021-04-29 03:50:55,000 INFO L343 CegarLoopForPetriNet]: 344 programPoint places, 1 predicate places. [2021-04-29 03:50:55,000 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:50:55,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 345 places, 206 transitions, 754 flow [2021-04-29 03:50:55,000 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 345 places, 206 transitions, 754 flow [2021-04-29 03:50:55,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 345 places, 206 transitions, 754 flow [2021-04-29 03:50:55,035 INFO L129 PetriNetUnfolder]: 0/206 cut-off events. [2021-04-29 03:50:55,036 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:55,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 206 events. 0/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 414 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. [2021-04-29 03:50:55,044 INFO L146 LiptonReduction]: Number of co-enabled transitions 27608 [2021-04-29 03:50:55,080 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:50:55,081 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:50:55,081 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-04-29 03:50:55,087 INFO L480 AbstractCegarLoop]: Abstraction has has 345 places, 206 transitions, 754 flow [2021-04-29 03:50:55,088 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) [2021-04-29 03:50:55,088 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:50:55,088 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] [2021-04-29 03:50:55,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-04-29 03:50:55,088 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:50:55,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:50:55,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1133995506, now seen corresponding path program 1 times [2021-04-29 03:50:55,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:50:55,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146036792] [2021-04-29 03:50:55,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:50:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:50:55,111 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:50:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:50:55,115 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:50:55,130 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:50:55,130 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:50:55,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-04-29 03:50:55,131 WARN L342 ceAbstractionStarter]: 68 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:50:55,131 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 69 thread instances. [2021-04-29 03:50:55,273 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:50:55,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:50:55,274 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:50:55,274 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:50:55,274 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:50:55,274 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:50:55,274 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:50:55,274 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:50:55,274 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:50:55,274 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:50:55,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 351 places, 212 transitions, 5461 flow [2021-04-29 03:50:55,462 INFO L129 PetriNetUnfolder]: 0/419 cut-off events. [2021-04-29 03:50:55,463 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:55,463 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. [2021-04-29 03:50:55,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 351 places, 212 transitions, 5461 flow [2021-04-29 03:50:55,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 349 places, 210 transitions, 5457 flow [2021-04-29 03:50:55,468 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:50:55,468 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 349 places, 210 transitions, 5457 flow [2021-04-29 03:50:55,468 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 349 places, 210 transitions, 5457 flow [2021-04-29 03:50:55,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 349 places, 210 transitions, 5457 flow [2021-04-29 03:50:55,619 INFO L129 PetriNetUnfolder]: 0/279 cut-off events. [2021-04-29 03:50:55,620 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:50:55,620 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. [2021-04-29 03:50:55,672 INFO L146 LiptonReduction]: Number of co-enabled transitions 28704 [2021-04-29 03:51:17,781 INFO L158 LiptonReduction]: Checked pairs total: 11868 [2021-04-29 03:51:17,782 INFO L160 LiptonReduction]: Total number of compositions: 69 [2021-04-29 03:51:17,782 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22314 [2021-04-29 03:51:17,787 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:51:17,787 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:17,787 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:51:17,787 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:51:17,787 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:51:17,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:51:17,788 INFO L82 PathProgramCache]: Analyzing trace with hash 319011, now seen corresponding path program 1 times [2021-04-29 03:51:17,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:51:17,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765782410] [2021-04-29 03:51:17,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:51:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:51:17,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:51:17,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:51:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:51:17,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765782410] [2021-04-29 03:51:17,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:51:17,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:51:17,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215280084] [2021-04-29 03:51:17,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:51:17,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:51:17,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:51:17,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:51:17,817 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 281 [2021-04-29 03:51:17,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 210 transitions, 5457 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) [2021-04-29 03:51:17,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:51:17,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 281 [2021-04-29 03:51:17,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:51:17,905 INFO L129 PetriNetUnfolder]: 0/209 cut-off events. [2021-04-29 03:51:17,906 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:17,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2834 conditions, 209 events. 0/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 465 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. [2021-04-29 03:51:17,906 INFO L132 encePairwiseOnDemand]: 279/281 looper letters, 0 selfloop transitions, 1 changer transitions 0/209 dead transitions. [2021-04-29 03:51:17,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 209 transitions, 5457 flow [2021-04-29 03:51:17,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:51:17,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:51:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 836 transitions. [2021-04-29 03:51:17,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9916963226571768 [2021-04-29 03:51:17,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 836 transitions. [2021-04-29 03:51:17,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 836 transitions. [2021-04-29 03:51:17,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:51:17,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 836 transitions. [2021-04-29 03:51:17,909 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) [2021-04-29 03:51:17,910 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) [2021-04-29 03:51:17,910 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) [2021-04-29 03:51:17,910 INFO L185 Difference]: Start difference. First operand has 349 places, 210 transitions, 5457 flow. Second operand 3 states and 836 transitions. [2021-04-29 03:51:17,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 209 transitions, 5457 flow [2021-04-29 03:51:18,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 209 transitions, 765 flow, removed 2346 selfloop flow, removed 0 redundant places. [2021-04-29 03:51:18,088 INFO L241 Difference]: Finished difference. Result has 350 places, 209 transitions, 765 flow [2021-04-29 03:51:18,088 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=763, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=350, PETRI_TRANSITIONS=209} [2021-04-29 03:51:18,089 INFO L343 CegarLoopForPetriNet]: 349 programPoint places, 1 predicate places. [2021-04-29 03:51:18,089 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:51:18,089 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 350 places, 209 transitions, 765 flow [2021-04-29 03:51:18,089 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 350 places, 209 transitions, 765 flow [2021-04-29 03:51:18,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 350 places, 209 transitions, 765 flow [2021-04-29 03:51:18,149 INFO L129 PetriNetUnfolder]: 0/209 cut-off events. [2021-04-29 03:51:18,149 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:18,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 209 events. 0/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 401 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. [2021-04-29 03:51:18,162 INFO L146 LiptonReduction]: Number of co-enabled transitions 28428 [2021-04-29 03:51:18,198 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:51:18,198 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:51:18,198 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 109 [2021-04-29 03:51:18,204 INFO L480 AbstractCegarLoop]: Abstraction has has 350 places, 209 transitions, 765 flow [2021-04-29 03:51:18,205 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) [2021-04-29 03:51:18,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:51:18,205 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] [2021-04-29 03:51:18,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-04-29 03:51:18,205 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:51:18,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:51:18,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1823164207, now seen corresponding path program 1 times [2021-04-29 03:51:18,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:51:18,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707144836] [2021-04-29 03:51:18,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:51:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:51:18,226 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:51:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:51:18,230 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:51:18,247 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:51:18,247 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:51:18,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-04-29 03:51:18,248 WARN L342 ceAbstractionStarter]: 69 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:51:18,248 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 70 thread instances. [2021-04-29 03:51:18,391 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:51:18,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:51:18,392 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:51:18,392 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:51:18,392 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:51:18,392 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:51:18,392 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:51:18,392 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:51:18,392 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:51:18,392 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:51:18,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 356 places, 215 transitions, 5610 flow [2021-04-29 03:51:18,514 INFO L129 PetriNetUnfolder]: 0/425 cut-off events. [2021-04-29 03:51:18,514 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:18,515 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. [2021-04-29 03:51:18,515 INFO L82 GeneralOperation]: Start removeDead. Operand has 356 places, 215 transitions, 5610 flow [2021-04-29 03:51:18,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 354 places, 213 transitions, 5606 flow [2021-04-29 03:51:18,517 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:51:18,517 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 354 places, 213 transitions, 5606 flow [2021-04-29 03:51:18,518 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 354 places, 213 transitions, 5606 flow [2021-04-29 03:51:18,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 354 places, 213 transitions, 5606 flow [2021-04-29 03:51:18,607 INFO L129 PetriNetUnfolder]: 0/283 cut-off events. [2021-04-29 03:51:18,607 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:18,607 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. [2021-04-29 03:51:18,639 INFO L146 LiptonReduction]: Number of co-enabled transitions 29540 [2021-04-29 03:51:41,986 INFO L158 LiptonReduction]: Checked pairs total: 12215 [2021-04-29 03:51:41,986 INFO L160 LiptonReduction]: Total number of compositions: 70 [2021-04-29 03:51:41,986 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23469 [2021-04-29 03:51:41,992 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:51:41,992 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:41,993 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:51:41,993 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:51:41,993 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:51:41,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:51:41,993 INFO L82 PathProgramCache]: Analyzing trace with hash 328099, now seen corresponding path program 1 times [2021-04-29 03:51:41,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:51:41,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492561103] [2021-04-29 03:51:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:51:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:51:42,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:51:42,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:51:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:51:42,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492561103] [2021-04-29 03:51:42,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:51:42,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:51:42,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998877153] [2021-04-29 03:51:42,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:51:42,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:51:42,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:51:42,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:51:42,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 285 [2021-04-29 03:51:42,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 213 transitions, 5606 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) [2021-04-29 03:51:42,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:51:42,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 285 [2021-04-29 03:51:42,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:51:42,116 INFO L129 PetriNetUnfolder]: 0/212 cut-off events. [2021-04-29 03:51:42,116 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:42,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2910 conditions, 212 events. 0/212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 450 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. [2021-04-29 03:51:42,116 INFO L132 encePairwiseOnDemand]: 283/285 looper letters, 0 selfloop transitions, 1 changer transitions 0/212 dead transitions. [2021-04-29 03:51:42,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 212 transitions, 5606 flow [2021-04-29 03:51:42,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:51:42,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:51:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 848 transitions. [2021-04-29 03:51:42,117 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.991812865497076 [2021-04-29 03:51:42,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 848 transitions. [2021-04-29 03:51:42,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 848 transitions. [2021-04-29 03:51:42,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:51:42,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 848 transitions. [2021-04-29 03:51:42,119 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) [2021-04-29 03:51:42,119 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) [2021-04-29 03:51:42,119 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) [2021-04-29 03:51:42,119 INFO L185 Difference]: Start difference. First operand has 354 places, 213 transitions, 5606 flow. Second operand 3 states and 848 transitions. [2021-04-29 03:51:42,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 212 transitions, 5606 flow [2021-04-29 03:51:42,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 212 transitions, 776 flow, removed 2415 selfloop flow, removed 0 redundant places. [2021-04-29 03:51:42,271 INFO L241 Difference]: Finished difference. Result has 355 places, 212 transitions, 776 flow [2021-04-29 03:51:42,271 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=285, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=355, PETRI_TRANSITIONS=212} [2021-04-29 03:51:42,271 INFO L343 CegarLoopForPetriNet]: 354 programPoint places, 1 predicate places. [2021-04-29 03:51:42,271 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:51:42,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 355 places, 212 transitions, 776 flow [2021-04-29 03:51:42,271 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 355 places, 212 transitions, 776 flow [2021-04-29 03:51:42,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 355 places, 212 transitions, 776 flow [2021-04-29 03:51:42,309 INFO L129 PetriNetUnfolder]: 0/212 cut-off events. [2021-04-29 03:51:42,309 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:42,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 212 events. 0/212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 416 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. [2021-04-29 03:51:42,317 INFO L146 LiptonReduction]: Number of co-enabled transitions 29260 [2021-04-29 03:51:42,342 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:51:42,342 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:51:42,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-04-29 03:51:42,347 INFO L480 AbstractCegarLoop]: Abstraction has has 355 places, 212 transitions, 776 flow [2021-04-29 03:51:42,348 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) [2021-04-29 03:51:42,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:51:42,348 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:51:42,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-04-29 03:51:42,348 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:51:42,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:51:42,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1518914513, now seen corresponding path program 1 times [2021-04-29 03:51:42,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:51:42,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563192224] [2021-04-29 03:51:42,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:51:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:51:42,364 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:51:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:51:42,368 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:51:42,381 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:51:42,381 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:51:42,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-04-29 03:51:42,382 WARN L342 ceAbstractionStarter]: 70 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:51:42,382 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 71 thread instances. [2021-04-29 03:51:42,531 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:51:42,532 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:51:42,532 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:51:42,533 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:51:42,533 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:51:42,533 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:51:42,533 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:51:42,533 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:51:42,533 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:51:42,533 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:51:42,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 361 places, 218 transitions, 5761 flow [2021-04-29 03:51:42,642 INFO L129 PetriNetUnfolder]: 0/431 cut-off events. [2021-04-29 03:51:42,642 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:42,642 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. [2021-04-29 03:51:42,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 218 transitions, 5761 flow [2021-04-29 03:51:42,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 216 transitions, 5757 flow [2021-04-29 03:51:42,648 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:51:42,648 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 359 places, 216 transitions, 5757 flow [2021-04-29 03:51:42,648 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 359 places, 216 transitions, 5757 flow [2021-04-29 03:51:42,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 359 places, 216 transitions, 5757 flow [2021-04-29 03:51:42,807 INFO L129 PetriNetUnfolder]: 0/287 cut-off events. [2021-04-29 03:51:42,807 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:51:42,807 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. [2021-04-29 03:51:42,867 INFO L146 LiptonReduction]: Number of co-enabled transitions 30388 [2021-04-29 03:52:07,227 INFO L158 LiptonReduction]: Checked pairs total: 12567 [2021-04-29 03:52:07,228 INFO L160 LiptonReduction]: Total number of compositions: 71 [2021-04-29 03:52:07,228 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24581 [2021-04-29 03:52:07,235 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:52:07,236 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:07,236 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:52:07,236 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:52:07,236 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:52:07,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:52:07,236 INFO L82 PathProgramCache]: Analyzing trace with hash 337315, now seen corresponding path program 1 times [2021-04-29 03:52:07,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:52:07,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572593482] [2021-04-29 03:52:07,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:52:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:52:07,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:52:07,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:52:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:52:07,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572593482] [2021-04-29 03:52:07,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:52:07,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:52:07,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606544167] [2021-04-29 03:52:07,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:52:07,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:52:07,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:52:07,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:52:07,265 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 289 [2021-04-29 03:52:07,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 216 transitions, 5757 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) [2021-04-29 03:52:07,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:52:07,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 289 [2021-04-29 03:52:07,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:52:07,367 INFO L129 PetriNetUnfolder]: 0/215 cut-off events. [2021-04-29 03:52:07,367 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:07,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2987 conditions, 215 events. 0/215 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 399 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. [2021-04-29 03:52:07,368 INFO L132 encePairwiseOnDemand]: 287/289 looper letters, 0 selfloop transitions, 1 changer transitions 0/215 dead transitions. [2021-04-29 03:52:07,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 215 transitions, 5757 flow [2021-04-29 03:52:07,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:52:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:52:07,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 860 transitions. [2021-04-29 03:52:07,369 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9919261822376009 [2021-04-29 03:52:07,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 860 transitions. [2021-04-29 03:52:07,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 860 transitions. [2021-04-29 03:52:07,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:52:07,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 860 transitions. [2021-04-29 03:52:07,370 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) [2021-04-29 03:52:07,371 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) [2021-04-29 03:52:07,371 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) [2021-04-29 03:52:07,371 INFO L185 Difference]: Start difference. First operand has 359 places, 216 transitions, 5757 flow. Second operand 3 states and 860 transitions. [2021-04-29 03:52:07,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 215 transitions, 5757 flow [2021-04-29 03:52:07,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 215 transitions, 787 flow, removed 2485 selfloop flow, removed 0 redundant places. [2021-04-29 03:52:07,519 INFO L241 Difference]: Finished difference. Result has 360 places, 215 transitions, 787 flow [2021-04-29 03:52:07,519 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=787, PETRI_PLACES=360, PETRI_TRANSITIONS=215} [2021-04-29 03:52:07,519 INFO L343 CegarLoopForPetriNet]: 359 programPoint places, 1 predicate places. [2021-04-29 03:52:07,519 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:52:07,519 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 360 places, 215 transitions, 787 flow [2021-04-29 03:52:07,520 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 360 places, 215 transitions, 787 flow [2021-04-29 03:52:07,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 360 places, 215 transitions, 787 flow [2021-04-29 03:52:07,558 INFO L129 PetriNetUnfolder]: 0/215 cut-off events. [2021-04-29 03:52:07,559 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:07,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 215 events. 0/215 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 468 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. [2021-04-29 03:52:07,567 INFO L146 LiptonReduction]: Number of co-enabled transitions 30104 [2021-04-29 03:52:07,593 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:52:07,593 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:52:07,593 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-04-29 03:52:07,599 INFO L480 AbstractCegarLoop]: Abstraction has has 360 places, 215 transitions, 787 flow [2021-04-29 03:52:07,599 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) [2021-04-29 03:52:07,599 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:52:07,599 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:52:07,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-04-29 03:52:07,599 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:52:07,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:52:07,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1746041226, now seen corresponding path program 1 times [2021-04-29 03:52:07,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:52:07,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477356642] [2021-04-29 03:52:07,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:52:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:52:07,616 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:52:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:52:07,620 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:52:07,634 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:52:07,634 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:52:07,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-04-29 03:52:07,634 WARN L342 ceAbstractionStarter]: 71 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:52:07,634 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 72 thread instances. [2021-04-29 03:52:07,780 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:52:07,781 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:52:07,781 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:52:07,781 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:52:07,782 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:52:07,782 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:52:07,782 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:52:07,782 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:52:07,782 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:52:07,782 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:52:07,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 366 places, 221 transitions, 5914 flow [2021-04-29 03:52:07,896 INFO L129 PetriNetUnfolder]: 0/437 cut-off events. [2021-04-29 03:52:07,896 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:07,896 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. [2021-04-29 03:52:07,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 366 places, 221 transitions, 5914 flow [2021-04-29 03:52:07,899 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 364 places, 219 transitions, 5910 flow [2021-04-29 03:52:07,899 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:52:07,899 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 364 places, 219 transitions, 5910 flow [2021-04-29 03:52:07,899 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 364 places, 219 transitions, 5910 flow [2021-04-29 03:52:07,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 364 places, 219 transitions, 5910 flow [2021-04-29 03:52:07,995 INFO L129 PetriNetUnfolder]: 0/291 cut-off events. [2021-04-29 03:52:07,996 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:07,996 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. [2021-04-29 03:52:08,182 INFO L146 LiptonReduction]: Number of co-enabled transitions 31248 [2021-04-29 03:52:33,879 INFO L158 LiptonReduction]: Checked pairs total: 12924 [2021-04-29 03:52:33,879 INFO L160 LiptonReduction]: Total number of compositions: 72 [2021-04-29 03:52:33,880 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25981 [2021-04-29 03:52:33,887 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:52:33,888 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:33,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:52:33,888 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:52:33,888 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:52:33,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:52:33,888 INFO L82 PathProgramCache]: Analyzing trace with hash 346659, now seen corresponding path program 1 times [2021-04-29 03:52:33,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:52:33,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237093715] [2021-04-29 03:52:33,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:52:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:52:33,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:52:33,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:52:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:52:33,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237093715] [2021-04-29 03:52:33,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:52:33,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:52:33,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914213293] [2021-04-29 03:52:33,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:52:33,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:52:33,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:52:33,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:52:33,918 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 293 [2021-04-29 03:52:33,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 219 transitions, 5910 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) [2021-04-29 03:52:33,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:52:33,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 293 [2021-04-29 03:52:33,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:52:34,019 INFO L129 PetriNetUnfolder]: 0/218 cut-off events. [2021-04-29 03:52:34,019 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:34,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3065 conditions, 218 events. 0/218 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 504 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. [2021-04-29 03:52:34,020 INFO L132 encePairwiseOnDemand]: 291/293 looper letters, 0 selfloop transitions, 1 changer transitions 0/218 dead transitions. [2021-04-29 03:52:34,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 218 transitions, 5910 flow [2021-04-29 03:52:34,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:52:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:52:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 872 transitions. [2021-04-29 03:52:34,021 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9920364050056882 [2021-04-29 03:52:34,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 872 transitions. [2021-04-29 03:52:34,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 872 transitions. [2021-04-29 03:52:34,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:52:34,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 872 transitions. [2021-04-29 03:52:34,022 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) [2021-04-29 03:52:34,023 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) [2021-04-29 03:52:34,023 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) [2021-04-29 03:52:34,024 INFO L185 Difference]: Start difference. First operand has 364 places, 219 transitions, 5910 flow. Second operand 3 states and 872 transitions. [2021-04-29 03:52:34,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 218 transitions, 5910 flow [2021-04-29 03:52:34,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 218 transitions, 798 flow, removed 2556 selfloop flow, removed 0 redundant places. [2021-04-29 03:52:34,177 INFO L241 Difference]: Finished difference. Result has 365 places, 218 transitions, 798 flow [2021-04-29 03:52:34,177 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=365, PETRI_TRANSITIONS=218} [2021-04-29 03:52:34,177 INFO L343 CegarLoopForPetriNet]: 364 programPoint places, 1 predicate places. [2021-04-29 03:52:34,177 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:52:34,177 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 365 places, 218 transitions, 798 flow [2021-04-29 03:52:34,177 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 365 places, 218 transitions, 798 flow [2021-04-29 03:52:34,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 365 places, 218 transitions, 798 flow [2021-04-29 03:52:34,217 INFO L129 PetriNetUnfolder]: 0/218 cut-off events. [2021-04-29 03:52:34,218 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:34,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 218 events. 0/218 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 421 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. [2021-04-29 03:52:34,227 INFO L146 LiptonReduction]: Number of co-enabled transitions 30960 [2021-04-29 03:52:34,253 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:52:34,253 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:52:34,253 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-04-29 03:52:34,259 INFO L480 AbstractCegarLoop]: Abstraction has has 365 places, 218 transitions, 798 flow [2021-04-29 03:52:34,260 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) [2021-04-29 03:52:34,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:52:34,260 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] [2021-04-29 03:52:34,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-04-29 03:52:34,260 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:52:34,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:52:34,260 INFO L82 PathProgramCache]: Analyzing trace with hash 748644244, now seen corresponding path program 1 times [2021-04-29 03:52:34,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:52:34,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288737578] [2021-04-29 03:52:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:52:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:52:34,276 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:52:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:52:34,279 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:52:34,292 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:52:34,292 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:52:34,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-04-29 03:52:34,292 WARN L342 ceAbstractionStarter]: 72 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:52:34,293 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 73 thread instances. [2021-04-29 03:52:34,454 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:52:34,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:52:34,455 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:52:34,455 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:52:34,455 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:52:34,455 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:52:34,456 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:52:34,456 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:52:34,456 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:52:34,456 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:52:34,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 371 places, 224 transitions, 6069 flow [2021-04-29 03:52:34,573 INFO L129 PetriNetUnfolder]: 0/443 cut-off events. [2021-04-29 03:52:34,574 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:34,574 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. [2021-04-29 03:52:34,574 INFO L82 GeneralOperation]: Start removeDead. Operand has 371 places, 224 transitions, 6069 flow [2021-04-29 03:52:34,577 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 222 transitions, 6065 flow [2021-04-29 03:52:34,577 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:52:34,577 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 369 places, 222 transitions, 6065 flow [2021-04-29 03:52:34,577 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 369 places, 222 transitions, 6065 flow [2021-04-29 03:52:34,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 369 places, 222 transitions, 6065 flow [2021-04-29 03:52:34,823 INFO L129 PetriNetUnfolder]: 0/295 cut-off events. [2021-04-29 03:52:34,823 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:52:34,824 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. [2021-04-29 03:52:34,858 INFO L146 LiptonReduction]: Number of co-enabled transitions 32120 [2021-04-29 03:53:01,837 INFO L158 LiptonReduction]: Checked pairs total: 13286 [2021-04-29 03:53:01,837 INFO L160 LiptonReduction]: Total number of compositions: 73 [2021-04-29 03:53:01,838 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27261 [2021-04-29 03:53:01,844 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:53:01,844 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:01,844 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:53:01,844 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:53:01,844 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:53:01,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:53:01,845 INFO L82 PathProgramCache]: Analyzing trace with hash 356131, now seen corresponding path program 1 times [2021-04-29 03:53:01,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:53:01,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655758312] [2021-04-29 03:53:01,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:53:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:53:01,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:53:01,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:53:01,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:53:01,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655758312] [2021-04-29 03:53:01,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:53:01,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:53:01,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582167185] [2021-04-29 03:53:01,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:53:01,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:53:01,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:53:01,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:53:01,872 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 297 [2021-04-29 03:53:01,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 222 transitions, 6065 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) [2021-04-29 03:53:01,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:53:01,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 297 [2021-04-29 03:53:01,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:53:01,975 INFO L129 PetriNetUnfolder]: 0/221 cut-off events. [2021-04-29 03:53:01,975 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:01,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3144 conditions, 221 events. 0/221 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 423 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. [2021-04-29 03:53:01,976 INFO L132 encePairwiseOnDemand]: 295/297 looper letters, 0 selfloop transitions, 1 changer transitions 0/221 dead transitions. [2021-04-29 03:53:01,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 221 transitions, 6065 flow [2021-04-29 03:53:01,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:53:01,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:53:01,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 884 transitions. [2021-04-29 03:53:01,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9921436588103255 [2021-04-29 03:53:01,977 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 884 transitions. [2021-04-29 03:53:01,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 884 transitions. [2021-04-29 03:53:01,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:53:01,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 884 transitions. [2021-04-29 03:53:01,978 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) [2021-04-29 03:53:01,979 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) [2021-04-29 03:53:01,979 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) [2021-04-29 03:53:01,979 INFO L185 Difference]: Start difference. First operand has 369 places, 222 transitions, 6065 flow. Second operand 3 states and 884 transitions. [2021-04-29 03:53:01,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 221 transitions, 6065 flow [2021-04-29 03:53:02,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 221 transitions, 809 flow, removed 2628 selfloop flow, removed 0 redundant places. [2021-04-29 03:53:02,130 INFO L241 Difference]: Finished difference. Result has 370 places, 221 transitions, 809 flow [2021-04-29 03:53:02,130 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=809, PETRI_PLACES=370, PETRI_TRANSITIONS=221} [2021-04-29 03:53:02,131 INFO L343 CegarLoopForPetriNet]: 369 programPoint places, 1 predicate places. [2021-04-29 03:53:02,131 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:53:02,131 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 221 transitions, 809 flow [2021-04-29 03:53:02,131 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 221 transitions, 809 flow [2021-04-29 03:53:02,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 221 transitions, 809 flow [2021-04-29 03:53:02,172 INFO L129 PetriNetUnfolder]: 0/221 cut-off events. [2021-04-29 03:53:02,172 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:02,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 221 events. 0/221 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 464 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. [2021-04-29 03:53:02,181 INFO L146 LiptonReduction]: Number of co-enabled transitions 31828 [2021-04-29 03:53:02,208 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:53:02,209 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:53:02,209 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-04-29 03:53:02,214 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 221 transitions, 809 flow [2021-04-29 03:53:02,214 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) [2021-04-29 03:53:02,214 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:53:02,214 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] [2021-04-29 03:53:02,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-04-29 03:53:02,214 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:53:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:53:02,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1012633611, now seen corresponding path program 1 times [2021-04-29 03:53:02,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:53:02,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780572491] [2021-04-29 03:53:02,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:53:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:53:02,232 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:53:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:53:02,236 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:53:02,250 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:53:02,250 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:53:02,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-04-29 03:53:02,250 WARN L342 ceAbstractionStarter]: 73 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:53:02,251 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 74 thread instances. [2021-04-29 03:53:02,407 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:53:02,408 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:53:02,408 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:53:02,408 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:53:02,409 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:53:02,409 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:53:02,409 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:53:02,409 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:53:02,409 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:53:02,409 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:53:02,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 376 places, 227 transitions, 6226 flow [2021-04-29 03:53:02,531 INFO L129 PetriNetUnfolder]: 0/449 cut-off events. [2021-04-29 03:53:02,531 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:02,531 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. [2021-04-29 03:53:02,531 INFO L82 GeneralOperation]: Start removeDead. Operand has 376 places, 227 transitions, 6226 flow [2021-04-29 03:53:02,534 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 225 transitions, 6222 flow [2021-04-29 03:53:02,534 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:53:02,535 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 225 transitions, 6222 flow [2021-04-29 03:53:02,535 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 225 transitions, 6222 flow [2021-04-29 03:53:02,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 374 places, 225 transitions, 6222 flow [2021-04-29 03:53:02,633 INFO L129 PetriNetUnfolder]: 0/299 cut-off events. [2021-04-29 03:53:02,633 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:02,633 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. [2021-04-29 03:53:02,670 INFO L146 LiptonReduction]: Number of co-enabled transitions 33004 [2021-04-29 03:53:30,775 INFO L158 LiptonReduction]: Checked pairs total: 13653 [2021-04-29 03:53:30,775 INFO L160 LiptonReduction]: Total number of compositions: 74 [2021-04-29 03:53:30,775 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28241 [2021-04-29 03:53:30,784 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:53:30,784 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:30,784 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:53:30,784 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:53:30,784 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:53:30,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:53:30,784 INFO L82 PathProgramCache]: Analyzing trace with hash 365731, now seen corresponding path program 1 times [2021-04-29 03:53:30,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:53:30,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511826143] [2021-04-29 03:53:30,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:53:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:53:30,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:53:30,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:53:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:53:30,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511826143] [2021-04-29 03:53:30,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:53:30,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:53:30,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496090625] [2021-04-29 03:53:30,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:53:30,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:53:30,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:53:30,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:53:30,815 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 301 [2021-04-29 03:53:30,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 225 transitions, 6222 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) [2021-04-29 03:53:30,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:53:30,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 301 [2021-04-29 03:53:30,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:53:31,059 INFO L129 PetriNetUnfolder]: 0/224 cut-off events. [2021-04-29 03:53:31,059 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:31,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3224 conditions, 224 events. 0/224 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 510 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. [2021-04-29 03:53:31,060 INFO L132 encePairwiseOnDemand]: 299/301 looper letters, 0 selfloop transitions, 1 changer transitions 0/224 dead transitions. [2021-04-29 03:53:31,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 224 transitions, 6222 flow [2021-04-29 03:53:31,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:53:31,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:53:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 896 transitions. [2021-04-29 03:53:31,060 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9922480620155039 [2021-04-29 03:53:31,061 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 896 transitions. [2021-04-29 03:53:31,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 896 transitions. [2021-04-29 03:53:31,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:53:31,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 896 transitions. [2021-04-29 03:53:31,066 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) [2021-04-29 03:53:31,067 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) [2021-04-29 03:53:31,067 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) [2021-04-29 03:53:31,067 INFO L185 Difference]: Start difference. First operand has 374 places, 225 transitions, 6222 flow. Second operand 3 states and 896 transitions. [2021-04-29 03:53:31,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 224 transitions, 6222 flow [2021-04-29 03:53:31,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 224 transitions, 820 flow, removed 2701 selfloop flow, removed 0 redundant places. [2021-04-29 03:53:31,260 INFO L241 Difference]: Finished difference. Result has 375 places, 224 transitions, 820 flow [2021-04-29 03:53:31,261 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=375, PETRI_TRANSITIONS=224} [2021-04-29 03:53:31,261 INFO L343 CegarLoopForPetriNet]: 374 programPoint places, 1 predicate places. [2021-04-29 03:53:31,261 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:53:31,261 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 375 places, 224 transitions, 820 flow [2021-04-29 03:53:31,261 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 375 places, 224 transitions, 820 flow [2021-04-29 03:53:31,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 375 places, 224 transitions, 820 flow [2021-04-29 03:53:31,303 INFO L129 PetriNetUnfolder]: 0/224 cut-off events. [2021-04-29 03:53:31,303 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:31,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 224 events. 0/224 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 502 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. [2021-04-29 03:53:31,312 INFO L146 LiptonReduction]: Number of co-enabled transitions 32708 [2021-04-29 03:53:31,340 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:53:31,340 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:53:31,340 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-04-29 03:53:31,345 INFO L480 AbstractCegarLoop]: Abstraction has has 375 places, 224 transitions, 820 flow [2021-04-29 03:53:31,346 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) [2021-04-29 03:53:31,346 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:53:31,346 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:53:31,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-04-29 03:53:31,346 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:53:31,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:53:31,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1976601769, now seen corresponding path program 1 times [2021-04-29 03:53:31,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:53:31,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595378811] [2021-04-29 03:53:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:53:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:53:31,362 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:53:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:53:31,365 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:53:31,377 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:53:31,377 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:53:31,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-04-29 03:53:31,377 WARN L342 ceAbstractionStarter]: 74 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:53:31,377 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 75 thread instances. [2021-04-29 03:53:31,545 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:53:31,545 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:53:31,546 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:53:31,546 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:53:31,546 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:53:31,546 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:53:31,546 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:53:31,546 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:53:31,546 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:53:31,546 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:53:31,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 381 places, 230 transitions, 6385 flow [2021-04-29 03:53:31,699 INFO L129 PetriNetUnfolder]: 0/455 cut-off events. [2021-04-29 03:53:31,699 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:31,699 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. [2021-04-29 03:53:31,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 381 places, 230 transitions, 6385 flow [2021-04-29 03:53:31,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 379 places, 228 transitions, 6381 flow [2021-04-29 03:53:31,703 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:53:31,703 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 379 places, 228 transitions, 6381 flow [2021-04-29 03:53:31,703 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 379 places, 228 transitions, 6381 flow [2021-04-29 03:53:31,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 379 places, 228 transitions, 6381 flow [2021-04-29 03:53:31,805 INFO L129 PetriNetUnfolder]: 0/303 cut-off events. [2021-04-29 03:53:31,805 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:53:31,805 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. [2021-04-29 03:53:31,844 INFO L146 LiptonReduction]: Number of co-enabled transitions 33900 [2021-04-29 03:54:01,330 INFO L158 LiptonReduction]: Checked pairs total: 14025 [2021-04-29 03:54:01,330 INFO L160 LiptonReduction]: Total number of compositions: 75 [2021-04-29 03:54:01,331 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29628 [2021-04-29 03:54:01,338 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:54:01,338 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:01,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:54:01,338 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:54:01,338 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:54:01,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:54:01,338 INFO L82 PathProgramCache]: Analyzing trace with hash 375459, now seen corresponding path program 1 times [2021-04-29 03:54:01,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:54:01,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929792209] [2021-04-29 03:54:01,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:54:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:54:01,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:01,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:54:01,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:54:01,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929792209] [2021-04-29 03:54:01,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:54:01,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:54:01,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179901260] [2021-04-29 03:54:01,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:54:01,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:54:01,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:54:01,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:54:01,368 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 305 [2021-04-29 03:54:01,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 228 transitions, 6381 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) [2021-04-29 03:54:01,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:54:01,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 305 [2021-04-29 03:54:01,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:54:01,478 INFO L129 PetriNetUnfolder]: 0/227 cut-off events. [2021-04-29 03:54:01,479 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:01,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3305 conditions, 227 events. 0/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 435 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. [2021-04-29 03:54:01,479 INFO L132 encePairwiseOnDemand]: 303/305 looper letters, 0 selfloop transitions, 1 changer transitions 0/227 dead transitions. [2021-04-29 03:54:01,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 227 transitions, 6381 flow [2021-04-29 03:54:01,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:54:01,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:54:01,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 908 transitions. [2021-04-29 03:54:01,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9923497267759562 [2021-04-29 03:54:01,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 908 transitions. [2021-04-29 03:54:01,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 908 transitions. [2021-04-29 03:54:01,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:54:01,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 908 transitions. [2021-04-29 03:54:01,482 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) [2021-04-29 03:54:01,483 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) [2021-04-29 03:54:01,483 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) [2021-04-29 03:54:01,483 INFO L185 Difference]: Start difference. First operand has 379 places, 228 transitions, 6381 flow. Second operand 3 states and 908 transitions. [2021-04-29 03:54:01,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 227 transitions, 6381 flow [2021-04-29 03:54:01,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 227 transitions, 831 flow, removed 2775 selfloop flow, removed 0 redundant places. [2021-04-29 03:54:01,643 INFO L241 Difference]: Finished difference. Result has 380 places, 227 transitions, 831 flow [2021-04-29 03:54:01,644 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=380, PETRI_TRANSITIONS=227} [2021-04-29 03:54:01,644 INFO L343 CegarLoopForPetriNet]: 379 programPoint places, 1 predicate places. [2021-04-29 03:54:01,644 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:01,644 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 380 places, 227 transitions, 831 flow [2021-04-29 03:54:01,644 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 380 places, 227 transitions, 831 flow [2021-04-29 03:54:01,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 380 places, 227 transitions, 831 flow [2021-04-29 03:54:01,687 INFO L129 PetriNetUnfolder]: 0/227 cut-off events. [2021-04-29 03:54:01,687 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:01,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 227 events. 0/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 430 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. [2021-04-29 03:54:01,697 INFO L146 LiptonReduction]: Number of co-enabled transitions 33600 [2021-04-29 03:54:01,726 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:54:01,726 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:54:01,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-04-29 03:54:01,732 INFO L480 AbstractCegarLoop]: Abstraction has has 380 places, 227 transitions, 831 flow [2021-04-29 03:54:01,732 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) [2021-04-29 03:54:01,732 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:54:01,732 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] [2021-04-29 03:54:01,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-04-29 03:54:01,732 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:54:01,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:54:01,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1188060048, now seen corresponding path program 1 times [2021-04-29 03:54:01,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:54:01,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93062519] [2021-04-29 03:54:01,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:54:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:54:01,751 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:54:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:54:01,755 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:54:01,769 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:54:01,769 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:54:01,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-04-29 03:54:01,770 WARN L342 ceAbstractionStarter]: 75 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:54:01,770 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 76 thread instances. [2021-04-29 03:54:01,939 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:54:01,940 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:54:01,940 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:54:01,940 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:54:01,941 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:54:01,941 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:54:01,941 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:54:01,941 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:54:01,941 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:54:01,941 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:54:01,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 386 places, 233 transitions, 6546 flow [2021-04-29 03:54:02,170 INFO L129 PetriNetUnfolder]: 0/461 cut-off events. [2021-04-29 03:54:02,171 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:02,171 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. [2021-04-29 03:54:02,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 386 places, 233 transitions, 6546 flow [2021-04-29 03:54:02,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 384 places, 231 transitions, 6542 flow [2021-04-29 03:54:02,176 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:02,176 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 384 places, 231 transitions, 6542 flow [2021-04-29 03:54:02,177 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 384 places, 231 transitions, 6542 flow [2021-04-29 03:54:02,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 384 places, 231 transitions, 6542 flow [2021-04-29 03:54:02,368 INFO L129 PetriNetUnfolder]: 0/307 cut-off events. [2021-04-29 03:54:02,368 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:02,369 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. [2021-04-29 03:54:02,435 INFO L146 LiptonReduction]: Number of co-enabled transitions 34808 [2021-04-29 03:54:33,679 INFO L158 LiptonReduction]: Checked pairs total: 14402 [2021-04-29 03:54:33,679 INFO L160 LiptonReduction]: Total number of compositions: 76 [2021-04-29 03:54:33,679 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31503 [2021-04-29 03:54:33,685 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:54:33,685 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:33,685 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:54:33,685 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:54:33,686 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:54:33,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:54:33,686 INFO L82 PathProgramCache]: Analyzing trace with hash 385315, now seen corresponding path program 1 times [2021-04-29 03:54:33,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:54:33,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436311094] [2021-04-29 03:54:33,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:54:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:54:33,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:54:33,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:54:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:54:33,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436311094] [2021-04-29 03:54:33,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:54:33,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:54:33,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221742798] [2021-04-29 03:54:33,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:54:33,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:54:33,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:54:33,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:54:33,715 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 309 [2021-04-29 03:54:33,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 231 transitions, 6542 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) [2021-04-29 03:54:33,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:54:33,716 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 309 [2021-04-29 03:54:33,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:54:33,851 INFO L129 PetriNetUnfolder]: 0/230 cut-off events. [2021-04-29 03:54:33,851 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:33,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3387 conditions, 230 events. 0/230 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 366 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. [2021-04-29 03:54:33,852 INFO L132 encePairwiseOnDemand]: 307/309 looper letters, 0 selfloop transitions, 1 changer transitions 0/230 dead transitions. [2021-04-29 03:54:33,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 230 transitions, 6542 flow [2021-04-29 03:54:33,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:54:33,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:54:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 920 transitions. [2021-04-29 03:54:33,853 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9924487594390508 [2021-04-29 03:54:33,853 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 920 transitions. [2021-04-29 03:54:33,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 920 transitions. [2021-04-29 03:54:33,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:54:33,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 920 transitions. [2021-04-29 03:54:33,854 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) [2021-04-29 03:54:33,855 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) [2021-04-29 03:54:33,855 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) [2021-04-29 03:54:33,855 INFO L185 Difference]: Start difference. First operand has 384 places, 231 transitions, 6542 flow. Second operand 3 states and 920 transitions. [2021-04-29 03:54:33,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 230 transitions, 6542 flow [2021-04-29 03:54:34,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 230 transitions, 842 flow, removed 2850 selfloop flow, removed 0 redundant places. [2021-04-29 03:54:34,021 INFO L241 Difference]: Finished difference. Result has 385 places, 230 transitions, 842 flow [2021-04-29 03:54:34,022 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=385, PETRI_TRANSITIONS=230} [2021-04-29 03:54:34,022 INFO L343 CegarLoopForPetriNet]: 384 programPoint places, 1 predicate places. [2021-04-29 03:54:34,022 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:34,022 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 385 places, 230 transitions, 842 flow [2021-04-29 03:54:34,022 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 385 places, 230 transitions, 842 flow [2021-04-29 03:54:34,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 385 places, 230 transitions, 842 flow [2021-04-29 03:54:34,067 INFO L129 PetriNetUnfolder]: 0/230 cut-off events. [2021-04-29 03:54:34,068 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:34,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 230 events. 0/230 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 463 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. [2021-04-29 03:54:34,078 INFO L146 LiptonReduction]: Number of co-enabled transitions 34504 [2021-04-29 03:54:34,107 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:54:34,107 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:54:34,108 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-04-29 03:54:34,113 INFO L480 AbstractCegarLoop]: Abstraction has has 385 places, 230 transitions, 842 flow [2021-04-29 03:54:34,113 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) [2021-04-29 03:54:34,113 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:54:34,113 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] [2021-04-29 03:54:34,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-04-29 03:54:34,113 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:54:34,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:54:34,114 INFO L82 PathProgramCache]: Analyzing trace with hash 795407642, now seen corresponding path program 1 times [2021-04-29 03:54:34,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:54:34,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752239581] [2021-04-29 03:54:34,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:54:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:54:34,130 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:54:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:54:34,134 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:54:34,149 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:54:34,149 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:54:34,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-04-29 03:54:34,150 WARN L342 ceAbstractionStarter]: 76 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:54:34,150 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 77 thread instances. [2021-04-29 03:54:34,330 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:54:34,330 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:54:34,331 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:54:34,331 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:54:34,331 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:54:34,331 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:54:34,331 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:54:34,331 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:54:34,331 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:54:34,331 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:54:34,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 391 places, 236 transitions, 6709 flow [2021-04-29 03:54:34,472 INFO L129 PetriNetUnfolder]: 0/467 cut-off events. [2021-04-29 03:54:34,472 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:34,472 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. [2021-04-29 03:54:34,473 INFO L82 GeneralOperation]: Start removeDead. Operand has 391 places, 236 transitions, 6709 flow [2021-04-29 03:54:34,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 389 places, 234 transitions, 6705 flow [2021-04-29 03:54:34,476 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:54:34,476 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 234 transitions, 6705 flow [2021-04-29 03:54:34,476 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 234 transitions, 6705 flow [2021-04-29 03:54:34,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 234 transitions, 6705 flow [2021-04-29 03:54:34,584 INFO L129 PetriNetUnfolder]: 0/311 cut-off events. [2021-04-29 03:54:34,585 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:54:34,585 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. [2021-04-29 03:54:34,626 INFO L146 LiptonReduction]: Number of co-enabled transitions 35728 [2021-04-29 03:55:07,479 INFO L158 LiptonReduction]: Checked pairs total: 14784 [2021-04-29 03:55:07,479 INFO L160 LiptonReduction]: Total number of compositions: 77 [2021-04-29 03:55:07,479 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33003 [2021-04-29 03:55:07,488 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:55:07,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:07,489 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:07,489 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:55:07,489 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:07,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:07,489 INFO L82 PathProgramCache]: Analyzing trace with hash 395299, now seen corresponding path program 1 times [2021-04-29 03:55:07,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:07,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955786722] [2021-04-29 03:55:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:55:07,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:07,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:55:07,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:55:07,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955786722] [2021-04-29 03:55:07,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:55:07,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:55:07,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66080647] [2021-04-29 03:55:07,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:55:07,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:55:07,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:55:07,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:55:07,527 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 313 [2021-04-29 03:55:07,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 234 transitions, 6705 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) [2021-04-29 03:55:07,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:55:07,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 313 [2021-04-29 03:55:07,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:55:07,650 INFO L129 PetriNetUnfolder]: 0/233 cut-off events. [2021-04-29 03:55:07,650 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:07,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3470 conditions, 233 events. 0/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 429 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. [2021-04-29 03:55:07,651 INFO L132 encePairwiseOnDemand]: 311/313 looper letters, 0 selfloop transitions, 1 changer transitions 0/233 dead transitions. [2021-04-29 03:55:07,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 233 transitions, 6705 flow [2021-04-29 03:55:07,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:55:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:55:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 932 transitions. [2021-04-29 03:55:07,652 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9925452609158679 [2021-04-29 03:55:07,652 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 932 transitions. [2021-04-29 03:55:07,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 932 transitions. [2021-04-29 03:55:07,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:55:07,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 932 transitions. [2021-04-29 03:55:07,653 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) [2021-04-29 03:55:07,654 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) [2021-04-29 03:55:07,654 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) [2021-04-29 03:55:07,654 INFO L185 Difference]: Start difference. First operand has 389 places, 234 transitions, 6705 flow. Second operand 3 states and 932 transitions. [2021-04-29 03:55:07,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 233 transitions, 6705 flow [2021-04-29 03:55:07,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 233 transitions, 853 flow, removed 2926 selfloop flow, removed 0 redundant places. [2021-04-29 03:55:07,834 INFO L241 Difference]: Finished difference. Result has 390 places, 233 transitions, 853 flow [2021-04-29 03:55:07,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=853, PETRI_PLACES=390, PETRI_TRANSITIONS=233} [2021-04-29 03:55:07,834 INFO L343 CegarLoopForPetriNet]: 389 programPoint places, 1 predicate places. [2021-04-29 03:55:07,834 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:07,834 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 233 transitions, 853 flow [2021-04-29 03:55:07,835 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 233 transitions, 853 flow [2021-04-29 03:55:07,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 390 places, 233 transitions, 853 flow [2021-04-29 03:55:07,881 INFO L129 PetriNetUnfolder]: 0/233 cut-off events. [2021-04-29 03:55:07,881 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:07,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 233 events. 0/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 511 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. [2021-04-29 03:55:07,891 INFO L146 LiptonReduction]: Number of co-enabled transitions 35420 [2021-04-29 03:55:07,921 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:55:07,921 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:55:07,922 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-04-29 03:55:07,929 INFO L480 AbstractCegarLoop]: Abstraction has has 390 places, 233 transitions, 853 flow [2021-04-29 03:55:07,929 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) [2021-04-29 03:55:07,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:07,929 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] [2021-04-29 03:55:07,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-04-29 03:55:07,929 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:07,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:07,931 INFO L82 PathProgramCache]: Analyzing trace with hash 2117439739, now seen corresponding path program 1 times [2021-04-29 03:55:07,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:07,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597626057] [2021-04-29 03:55:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:55:07,954 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:55:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:55:07,959 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:55:08,119 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:55:08,119 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:55:08,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-04-29 03:55:08,120 WARN L342 ceAbstractionStarter]: 77 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:55:08,120 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 78 thread instances. [2021-04-29 03:55:08,305 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:55:08,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:55:08,307 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:55:08,307 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:55:08,307 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:55:08,307 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:55:08,307 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:55:08,307 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:55:08,307 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:55:08,307 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:55:08,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 396 places, 239 transitions, 6874 flow [2021-04-29 03:55:08,562 INFO L129 PetriNetUnfolder]: 0/473 cut-off events. [2021-04-29 03:55:08,563 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:08,563 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. [2021-04-29 03:55:08,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 396 places, 239 transitions, 6874 flow [2021-04-29 03:55:08,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 394 places, 237 transitions, 6870 flow [2021-04-29 03:55:08,569 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:08,569 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 394 places, 237 transitions, 6870 flow [2021-04-29 03:55:08,569 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 394 places, 237 transitions, 6870 flow [2021-04-29 03:55:08,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 394 places, 237 transitions, 6870 flow [2021-04-29 03:55:08,775 INFO L129 PetriNetUnfolder]: 0/315 cut-off events. [2021-04-29 03:55:08,775 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:08,775 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. [2021-04-29 03:55:08,847 INFO L146 LiptonReduction]: Number of co-enabled transitions 36660 [2021-04-29 03:55:43,431 INFO L158 LiptonReduction]: Checked pairs total: 15171 [2021-04-29 03:55:43,431 INFO L160 LiptonReduction]: Total number of compositions: 78 [2021-04-29 03:55:43,431 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34862 [2021-04-29 03:55:43,438 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:55:43,439 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:43,439 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:43,439 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:55:43,439 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:43,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:43,439 INFO L82 PathProgramCache]: Analyzing trace with hash 405411, now seen corresponding path program 1 times [2021-04-29 03:55:43,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:43,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742206443] [2021-04-29 03:55:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:55:43,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:55:43,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:55:43,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:55:43,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742206443] [2021-04-29 03:55:43,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:55:43,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:55:43,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216833477] [2021-04-29 03:55:43,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:55:43,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:55:43,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:55:43,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:55:43,472 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 317 [2021-04-29 03:55:43,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 237 transitions, 6870 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) [2021-04-29 03:55:43,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:55:43,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 317 [2021-04-29 03:55:43,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:55:43,603 INFO L129 PetriNetUnfolder]: 0/236 cut-off events. [2021-04-29 03:55:43,603 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:43,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3554 conditions, 236 events. 0/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 498 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. [2021-04-29 03:55:43,604 INFO L132 encePairwiseOnDemand]: 315/317 looper letters, 0 selfloop transitions, 1 changer transitions 0/236 dead transitions. [2021-04-29 03:55:43,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 236 transitions, 6870 flow [2021-04-29 03:55:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:55:43,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:55:43,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2021-04-29 03:55:43,605 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9926393270241851 [2021-04-29 03:55:43,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 944 transitions. [2021-04-29 03:55:43,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 944 transitions. [2021-04-29 03:55:43,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:55:43,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 944 transitions. [2021-04-29 03:55:43,606 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) [2021-04-29 03:55:43,607 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) [2021-04-29 03:55:43,607 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) [2021-04-29 03:55:43,607 INFO L185 Difference]: Start difference. First operand has 394 places, 237 transitions, 6870 flow. Second operand 3 states and 944 transitions. [2021-04-29 03:55:43,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 236 transitions, 6870 flow [2021-04-29 03:55:43,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 236 transitions, 864 flow, removed 3003 selfloop flow, removed 0 redundant places. [2021-04-29 03:55:43,915 INFO L241 Difference]: Finished difference. Result has 395 places, 236 transitions, 864 flow [2021-04-29 03:55:43,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=395, PETRI_TRANSITIONS=236} [2021-04-29 03:55:43,916 INFO L343 CegarLoopForPetriNet]: 394 programPoint places, 1 predicate places. [2021-04-29 03:55:43,916 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:43,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 236 transitions, 864 flow [2021-04-29 03:55:43,916 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 236 transitions, 864 flow [2021-04-29 03:55:43,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 236 transitions, 864 flow [2021-04-29 03:55:43,996 INFO L129 PetriNetUnfolder]: 0/236 cut-off events. [2021-04-29 03:55:43,996 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:43,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 236 events. 0/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 468 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. [2021-04-29 03:55:44,015 INFO L146 LiptonReduction]: Number of co-enabled transitions 36348 [2021-04-29 03:55:44,063 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:55:44,064 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:55:44,064 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-04-29 03:55:44,071 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 236 transitions, 864 flow [2021-04-29 03:55:44,071 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) [2021-04-29 03:55:44,071 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:55:44,071 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] [2021-04-29 03:55:44,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-04-29 03:55:44,072 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:55:44,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:55:44,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1047065309, now seen corresponding path program 1 times [2021-04-29 03:55:44,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:55:44,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494147945] [2021-04-29 03:55:44,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:55:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:55:44,100 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:55:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:55:44,105 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:55:44,123 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:55:44,123 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:55:44,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-04-29 03:55:44,123 WARN L342 ceAbstractionStarter]: 78 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:55:44,124 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 79 thread instances. [2021-04-29 03:55:44,316 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:55:44,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:55:44,317 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:55:44,317 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:55:44,317 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:55:44,317 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:55:44,318 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:55:44,318 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:55:44,318 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:55:44,318 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:55:44,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 242 transitions, 7041 flow [2021-04-29 03:55:44,463 INFO L129 PetriNetUnfolder]: 0/479 cut-off events. [2021-04-29 03:55:44,463 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:44,463 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. [2021-04-29 03:55:44,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 242 transitions, 7041 flow [2021-04-29 03:55:44,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 240 transitions, 7037 flow [2021-04-29 03:55:44,467 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:55:44,467 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 399 places, 240 transitions, 7037 flow [2021-04-29 03:55:44,467 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 399 places, 240 transitions, 7037 flow [2021-04-29 03:55:44,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 399 places, 240 transitions, 7037 flow [2021-04-29 03:55:44,582 INFO L129 PetriNetUnfolder]: 0/319 cut-off events. [2021-04-29 03:55:44,582 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:55:44,583 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. [2021-04-29 03:55:44,626 INFO L146 LiptonReduction]: Number of co-enabled transitions 37604 [2021-04-29 03:56:20,718 INFO L158 LiptonReduction]: Checked pairs total: 15563 [2021-04-29 03:56:20,718 INFO L160 LiptonReduction]: Total number of compositions: 79 [2021-04-29 03:56:20,718 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36251 [2021-04-29 03:56:20,725 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-04-29 03:56:20,725 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:56:20,725 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:56:20,725 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:56:20,725 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:56:20,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:56:20,725 INFO L82 PathProgramCache]: Analyzing trace with hash 415651, now seen corresponding path program 1 times [2021-04-29 03:56:20,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:56:20,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076648619] [2021-04-29 03:56:20,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:56:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:56:20,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:56:20,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:56:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:56:20,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076648619] [2021-04-29 03:56:20,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:56:20,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:56:20,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100753355] [2021-04-29 03:56:20,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:56:20,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:56:20,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:56:20,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:56:20,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 321 [2021-04-29 03:56:20,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 240 transitions, 7037 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) [2021-04-29 03:56:20,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:56:20,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 321 [2021-04-29 03:56:20,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:56:20,878 INFO L129 PetriNetUnfolder]: 0/239 cut-off events. [2021-04-29 03:56:20,878 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:56:20,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3639 conditions, 239 events. 0/239 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 453 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. [2021-04-29 03:56:20,879 INFO L132 encePairwiseOnDemand]: 319/321 looper letters, 0 selfloop transitions, 1 changer transitions 0/239 dead transitions. [2021-04-29 03:56:20,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 239 transitions, 7037 flow [2021-04-29 03:56:20,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:56:20,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:56:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 956 transitions. [2021-04-29 03:56:20,880 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9927310488058152 [2021-04-29 03:56:20,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 956 transitions. [2021-04-29 03:56:20,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 956 transitions. [2021-04-29 03:56:20,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:56:20,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 956 transitions. [2021-04-29 03:56:20,881 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) [2021-04-29 03:56:20,882 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) [2021-04-29 03:56:20,882 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) [2021-04-29 03:56:20,882 INFO L185 Difference]: Start difference. First operand has 399 places, 240 transitions, 7037 flow. Second operand 3 states and 956 transitions. [2021-04-29 03:56:20,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 239 transitions, 7037 flow [2021-04-29 03:56:21,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 239 transitions, 875 flow, removed 3081 selfloop flow, removed 0 redundant places. [2021-04-29 03:56:21,075 INFO L241 Difference]: Finished difference. Result has 400 places, 239 transitions, 875 flow [2021-04-29 03:56:21,075 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=875, PETRI_PLACES=400, PETRI_TRANSITIONS=239} [2021-04-29 03:56:21,075 INFO L343 CegarLoopForPetriNet]: 399 programPoint places, 1 predicate places. [2021-04-29 03:56:21,075 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:56:21,075 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 400 places, 239 transitions, 875 flow [2021-04-29 03:56:21,076 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 400 places, 239 transitions, 875 flow [2021-04-29 03:56:21,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 400 places, 239 transitions, 875 flow [2021-04-29 03:56:21,123 INFO L129 PetriNetUnfolder]: 0/239 cut-off events. [2021-04-29 03:56:21,123 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:56:21,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 239 events. 0/239 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 520 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. [2021-04-29 03:56:21,134 INFO L146 LiptonReduction]: Number of co-enabled transitions 37288 [2021-04-29 03:56:21,165 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:56:21,165 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:56:21,165 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-04-29 03:56:21,171 INFO L480 AbstractCegarLoop]: Abstraction has has 400 places, 239 transitions, 875 flow [2021-04-29 03:56:21,171 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) [2021-04-29 03:56:21,171 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:56:21,171 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] [2021-04-29 03:56:21,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-04-29 03:56:21,172 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:56:21,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:56:21,172 INFO L82 PathProgramCache]: Analyzing trace with hash 2125115286, now seen corresponding path program 1 times [2021-04-29 03:56:21,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:56:21,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554195587] [2021-04-29 03:56:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:56:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:56:21,191 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:56:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:56:21,195 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:56:21,212 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:56:21,213 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:56:21,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-04-29 03:56:21,213 WARN L342 ceAbstractionStarter]: 79 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:56:21,213 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 80 thread instances. [2021-04-29 03:56:21,400 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:56:21,401 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:56:21,401 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:56:21,401 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:56:21,401 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:56:21,401 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:56:21,401 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:56:21,401 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:56:21,401 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:56:21,401 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:56:21,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 406 places, 245 transitions, 7210 flow [2021-04-29 03:56:21,550 INFO L129 PetriNetUnfolder]: 0/485 cut-off events. [2021-04-29 03:56:21,551 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:56:21,551 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. [2021-04-29 03:56:21,551 INFO L82 GeneralOperation]: Start removeDead. Operand has 406 places, 245 transitions, 7210 flow [2021-04-29 03:56:21,554 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 404 places, 243 transitions, 7206 flow [2021-04-29 03:56:21,554 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:56:21,554 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 404 places, 243 transitions, 7206 flow [2021-04-29 03:56:21,555 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 404 places, 243 transitions, 7206 flow [2021-04-29 03:56:21,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 404 places, 243 transitions, 7206 flow [2021-04-29 03:56:21,673 INFO L129 PetriNetUnfolder]: 0/323 cut-off events. [2021-04-29 03:56:21,673 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:56:21,673 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. [2021-04-29 03:56:21,718 INFO L146 LiptonReduction]: Number of co-enabled transitions 38560 [2021-04-29 03:56:59,999 INFO L158 LiptonReduction]: Checked pairs total: 15960 [2021-04-29 03:56:59,999 INFO L160 LiptonReduction]: Total number of compositions: 80 [2021-04-29 03:56:59,999 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38445 [2021-04-29 03:57:00,008 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-04-29 03:57:00,008 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:57:00,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:57:00,008 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-04-29 03:57:00,008 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:57:00,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:57:00,009 INFO L82 PathProgramCache]: Analyzing trace with hash 426019, now seen corresponding path program 1 times [2021-04-29 03:57:00,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:57:00,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273856053] [2021-04-29 03:57:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:57:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:57:00,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:57:00,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:57:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:57:00,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273856053] [2021-04-29 03:57:00,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:57:00,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:57:00,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168198114] [2021-04-29 03:57:00,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:57:00,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:57:00,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:57:00,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:57:00,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 325 [2021-04-29 03:57:00,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 243 transitions, 7206 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) [2021-04-29 03:57:00,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:57:00,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 325 [2021-04-29 03:57:00,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:57:00,215 INFO L129 PetriNetUnfolder]: 0/242 cut-off events. [2021-04-29 03:57:00,215 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:57:00,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3725 conditions, 242 events. 0/242 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 450 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. [2021-04-29 03:57:00,216 INFO L132 encePairwiseOnDemand]: 323/325 looper letters, 0 selfloop transitions, 1 changer transitions 0/242 dead transitions. [2021-04-29 03:57:00,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 242 transitions, 7206 flow [2021-04-29 03:57:00,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:57:00,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:57:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 968 transitions. [2021-04-29 03:57:00,217 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9928205128205129 [2021-04-29 03:57:00,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 968 transitions. [2021-04-29 03:57:00,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 968 transitions. [2021-04-29 03:57:00,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:57:00,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 968 transitions. [2021-04-29 03:57:00,219 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) [2021-04-29 03:57:00,219 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) [2021-04-29 03:57:00,220 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) [2021-04-29 03:57:00,220 INFO L185 Difference]: Start difference. First operand has 404 places, 243 transitions, 7206 flow. Second operand 3 states and 968 transitions. [2021-04-29 03:57:00,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 242 transitions, 7206 flow [2021-04-29 03:57:00,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 242 transitions, 886 flow, removed 3160 selfloop flow, removed 0 redundant places. [2021-04-29 03:57:00,512 INFO L241 Difference]: Finished difference. Result has 405 places, 242 transitions, 886 flow [2021-04-29 03:57:00,513 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=325, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=886, PETRI_PLACES=405, PETRI_TRANSITIONS=242} [2021-04-29 03:57:00,513 INFO L343 CegarLoopForPetriNet]: 404 programPoint places, 1 predicate places. [2021-04-29 03:57:00,513 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:57:00,513 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 405 places, 242 transitions, 886 flow [2021-04-29 03:57:00,513 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 405 places, 242 transitions, 886 flow [2021-04-29 03:57:00,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 405 places, 242 transitions, 886 flow [2021-04-29 03:57:00,859 INFO L129 PetriNetUnfolder]: 0/242 cut-off events. [2021-04-29 03:57:00,859 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:57:00,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 242 events. 0/242 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 467 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. [2021-04-29 03:57:00,871 INFO L146 LiptonReduction]: Number of co-enabled transitions 38240 [2021-04-29 03:57:00,904 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:57:00,904 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:57:00,904 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 391 [2021-04-29 03:57:00,911 INFO L480 AbstractCegarLoop]: Abstraction has has 405 places, 242 transitions, 886 flow [2021-04-29 03:57:00,911 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) [2021-04-29 03:57:00,911 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:57:00,911 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] [2021-04-29 03:57:00,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-04-29 03:57:00,911 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:57:00,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:57:00,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1215918752, now seen corresponding path program 1 times [2021-04-29 03:57:00,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:57:00,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427205328] [2021-04-29 03:57:00,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:57:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:57:00,939 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:57:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 03:57:00,943 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 03:57:00,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 03:57:00,962 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 03:57:00,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-04-29 03:57:00,962 WARN L342 ceAbstractionStarter]: 80 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 03:57:00,963 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 81 thread instances. [2021-04-29 03:57:01,159 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:57:01,159 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 03:57:01,160 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:57:01,160 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:57:01,160 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:57:01,161 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:57:01,161 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:57:01,161 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:57:01,161 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:57:01,161 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:57:01,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 411 places, 248 transitions, 7381 flow [2021-04-29 03:57:01,322 INFO L129 PetriNetUnfolder]: 0/491 cut-off events. [2021-04-29 03:57:01,322 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:57:01,323 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. [2021-04-29 03:57:01,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 411 places, 248 transitions, 7381 flow [2021-04-29 03:57:01,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 246 transitions, 7377 flow [2021-04-29 03:57:01,326 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:57:01,326 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 409 places, 246 transitions, 7377 flow [2021-04-29 03:57:01,326 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 409 places, 246 transitions, 7377 flow [2021-04-29 03:57:01,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 409 places, 246 transitions, 7377 flow [2021-04-29 03:57:01,449 INFO L129 PetriNetUnfolder]: 0/327 cut-off events. [2021-04-29 03:57:01,449 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:57:01,449 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. [2021-04-29 03:57:01,497 INFO L146 LiptonReduction]: Number of co-enabled transitions 39528 Received shutdown request... [2021-04-29 03:57:28,266 WARN L545 AbstractCegarLoop]: Verification canceled [2021-04-29 03:57:28,272 WARN L224 ceAbstractionStarter]: Timeout [2021-04-29 03:57:28,272 INFO L202 PluginConnector]: Adding new model fork_loop_noop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:57:28 BasicIcfg [2021-04-29 03:57:28,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:57:28,273 INFO L168 Benchmark]: Toolchain (without parser) took 787727.42 ms. Allocated memory was 302.0 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 271.2 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. [2021-04-29 03:57:28,275 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.30 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:57:28,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 302.0 MB. Free memory was 285.4 MB in the beginning and 283.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:57:28,276 INFO L168 Benchmark]: Boogie Preprocessor took 16.65 ms. Allocated memory is still 302.0 MB. Free memory was 283.9 MB in the beginning and 282.9 MB in the end (delta: 978.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:57:28,276 INFO L168 Benchmark]: RCFGBuilder took 278.80 ms. Allocated memory is still 302.0 MB. Free memory was 282.9 MB in the beginning and 282.1 MB in the end (delta: 802.7 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-04-29 03:57:28,276 INFO L168 Benchmark]: TraceAbstraction took 787341.30 ms. Allocated memory was 302.0 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 281.9 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. [2021-04-29 03:57:28,279 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 0.30 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.49 ms. Allocated memory is still 302.0 MB. Free memory was 285.4 MB in the beginning and 283.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.65 ms. Allocated memory is still 302.0 MB. Free memory was 283.9 MB in the beginning and 282.9 MB in the end (delta: 978.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 278.80 ms. Allocated memory is still 302.0 MB. Free memory was 282.9 MB in the beginning and 282.1 MB in the end (delta: 802.7 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 787341.30 ms. Allocated memory was 302.0 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 281.9 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 91.1ms, 9 PlacesBefore, 9 PlacesAfterwards, 6 TransitionsBefore, 6 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 2, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5ms, 10 PlacesBefore, 10 PlacesAfterwards, 5 TransitionsBefore, 5 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 2, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116.0ms, 14 PlacesBefore, 14 PlacesAfterwards, 9 TransitionsBefore, 9 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 41, positive: 41, positive conditional: 0, positive unconditional: 41, 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: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 9, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4ms, 15 PlacesBefore, 15 PlacesAfterwards, 8 TransitionsBefore, 8 TransitionsAfterwards, 20 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 9, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.2ms, 19 PlacesBefore, 19 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 21 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 35, positive: 35, positive conditional: 0, positive unconditional: 35, 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: 21, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 21, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9ms, 20 PlacesBefore, 20 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 21, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 87.2ms, 24 PlacesBefore, 24 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 43, positive: 43, positive conditional: 0, positive unconditional: 43, 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: 38, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 38, Positive conditional cache size: 38, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5ms, 25 PlacesBefore, 25 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 88 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 38, Positive conditional cache size: 38, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 154.9ms, 29 PlacesBefore, 29 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 82, positive: 82, positive conditional: 0, positive unconditional: 82, 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: 60, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 60, Positive conditional cache size: 60, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.9ms, 30 PlacesBefore, 30 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 60, Positive conditional cache size: 60, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 219.1ms, 34 PlacesBefore, 34 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 87 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 147, positive: 147, positive conditional: 0, positive unconditional: 147, 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: 87, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 87, Positive conditional cache size: 87, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4ms, 35 PlacesBefore, 35 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 87, Positive conditional cache size: 87, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 242.3ms, 39 PlacesBefore, 39 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 119 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 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: 119, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 119, unknown conditional: 119, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 119, Positive conditional cache size: 119, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7ms, 40 PlacesBefore, 40 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 119, Positive conditional cache size: 119, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 196.7ms, 44 PlacesBefore, 44 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 156 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 130, positive: 130, positive conditional: 0, positive unconditional: 130, 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: 156, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 156, Positive conditional cache size: 156, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3ms, 45 PlacesBefore, 45 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 156, Positive conditional cache size: 156, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 237.7ms, 49 PlacesBefore, 49 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 198 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 163, positive: 163, positive conditional: 0, positive unconditional: 163, 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: 198, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 198, Positive conditional cache size: 198, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4ms, 50 PlacesBefore, 50 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 198, Positive conditional cache size: 198, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 310.8ms, 54 PlacesBefore, 54 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 245 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 209, positive: 209, positive conditional: 0, positive unconditional: 209, 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: 245, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 245, Positive cache size: 245, Positive conditional cache size: 245, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.8ms, 55 PlacesBefore, 55 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 580 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 245, Positive cache size: 245, Positive conditional cache size: 245, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 388.0ms, 59 PlacesBefore, 59 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 748 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 297 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 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: 297, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 297, unknown conditional: 297, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 297, Positive cache size: 297, Positive conditional cache size: 297, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7ms, 60 PlacesBefore, 60 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 297, Positive cache size: 297, Positive conditional cache size: 297, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 388.5ms, 64 PlacesBefore, 64 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 354 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 278, positive: 278, positive conditional: 0, positive unconditional: 278, 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: 354, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 354, Positive cache size: 354, Positive conditional cache size: 354, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1ms, 65 PlacesBefore, 65 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 354, Positive cache size: 354, Positive conditional cache size: 354, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 462.3ms, 69 PlacesBefore, 69 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 416 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 332, positive: 332, positive conditional: 0, positive unconditional: 332, 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: 416, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 416, Positive cache size: 416, Positive conditional cache size: 416, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3ms, 70 PlacesBefore, 70 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 416, Positive cache size: 416, Positive conditional cache size: 416, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 526.3ms, 74 PlacesBefore, 74 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1204 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 14 TotalNumberOfCompositions, 483 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 387, positive: 387, positive conditional: 0, positive unconditional: 387, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 483, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 483, unknown conditional: 483, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 483, Positive conditional cache size: 483, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.9ms, 75 PlacesBefore, 75 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 1148 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 483, Positive conditional cache size: 483, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 610.0ms, 79 PlacesBefore, 79 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1380 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 555 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 466, positive: 466, positive conditional: 0, positive unconditional: 466, 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: 555, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 555, Positive conditional cache size: 555, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.0ms, 80 PlacesBefore, 80 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 555, Positive conditional cache size: 555, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 714.0ms, 84 PlacesBefore, 84 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1568 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 16 TotalNumberOfCompositions, 632 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 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: 632, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 632, unknown conditional: 632, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 632, Positive cache size: 632, Positive conditional cache size: 632, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.2ms, 85 PlacesBefore, 85 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 632, Positive cache size: 632, Positive conditional cache size: 632, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 796.8ms, 89 PlacesBefore, 89 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 1768 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 17 TotalNumberOfCompositions, 714 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 629, positive: 629, positive conditional: 0, positive unconditional: 629, 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: 714, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 714, Positive cache size: 714, Positive conditional cache size: 714, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.9ms, 90 PlacesBefore, 90 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 1700 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 714, Positive cache size: 714, Positive conditional cache size: 714, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 792.0ms, 94 PlacesBefore, 94 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 1980 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 18 TotalNumberOfCompositions, 801 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 618, positive: 618, positive conditional: 0, positive unconditional: 618, 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: 801, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 801, Positive cache size: 801, Positive conditional cache size: 801, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.6ms, 95 PlacesBefore, 95 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 1908 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 801, Positive cache size: 801, Positive conditional cache size: 801, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 899.9ms, 99 PlacesBefore, 99 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 2204 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 19 TotalNumberOfCompositions, 893 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 724, positive: 724, positive conditional: 0, positive unconditional: 724, 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: 893, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 893, Positive cache size: 893, Positive conditional cache size: 893, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.3ms, 100 PlacesBefore, 100 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 2128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 893, Positive cache size: 893, Positive conditional cache size: 893, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1108.1ms, 104 PlacesBefore, 104 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 2440 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 20 TotalNumberOfCompositions, 990 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 906, positive: 906, positive conditional: 0, positive unconditional: 906, 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: 990, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 990, Positive cache size: 990, Positive conditional cache size: 990, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.0ms, 105 PlacesBefore, 105 PlacesAfterwards, 62 TransitionsBefore, 62 TransitionsAfterwards, 2360 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 990, Positive cache size: 990, Positive conditional cache size: 990, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1281.7ms, 109 PlacesBefore, 109 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 2688 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 21 TotalNumberOfCompositions, 1092 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 1039, positive: 1039, positive conditional: 0, positive unconditional: 1039, 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: 1092, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1092, Positive cache size: 1092, Positive conditional cache size: 1092, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.4ms, 110 PlacesBefore, 110 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 2604 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1092, Positive cache size: 1092, Positive conditional cache size: 1092, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1215.1ms, 114 PlacesBefore, 114 PlacesAfterwards, 69 TransitionsBefore, 69 TransitionsAfterwards, 2948 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 22 TotalNumberOfCompositions, 1199 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 996, positive: 996, positive conditional: 0, positive unconditional: 996, 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: 1199, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1199, Positive cache size: 1199, Positive conditional cache size: 1199, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.4ms, 115 PlacesBefore, 115 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 2860 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1199, Positive cache size: 1199, Positive conditional cache size: 1199, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1303.2ms, 119 PlacesBefore, 119 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 3220 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 23 TotalNumberOfCompositions, 1311 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 1074, positive: 1074, positive conditional: 0, positive unconditional: 1074, 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: 1311, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1311, Positive cache size: 1311, Positive conditional cache size: 1311, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.1ms, 120 PlacesBefore, 120 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 3128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1311, Positive cache size: 1311, Positive conditional cache size: 1311, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1338.6ms, 124 PlacesBefore, 124 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 3504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 24 TotalNumberOfCompositions, 1428 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 1105, positive: 1105, positive conditional: 0, positive unconditional: 1105, 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: 1428, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1428, Positive cache size: 1428, Positive conditional cache size: 1428, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.2ms, 125 PlacesBefore, 125 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 3408 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1428, Positive cache size: 1428, Positive conditional cache size: 1428, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1582.1ms, 129 PlacesBefore, 129 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 3800 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 25 TotalNumberOfCompositions, 1550 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 1231, positive: 1231, positive conditional: 0, positive unconditional: 1231, 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: 1550, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1550, Positive cache size: 1550, Positive conditional cache size: 1550, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.3ms, 130 PlacesBefore, 130 PlacesAfterwards, 77 TransitionsBefore, 77 TransitionsAfterwards, 3700 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1550, Positive cache size: 1550, Positive conditional cache size: 1550, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1779.6ms, 134 PlacesBefore, 134 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 4108 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 26 TotalNumberOfCompositions, 1677 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 1504, positive: 1504, positive conditional: 0, positive unconditional: 1504, 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: 1677, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1677, Positive cache size: 1677, Positive conditional cache size: 1677, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.7ms, 135 PlacesBefore, 135 PlacesAfterwards, 80 TransitionsBefore, 80 TransitionsAfterwards, 4004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1677, Positive cache size: 1677, Positive conditional cache size: 1677, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1939.1ms, 139 PlacesBefore, 139 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 4428 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, 1809 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 1651, positive: 1651, positive conditional: 0, positive unconditional: 1651, 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: 1809, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1809, Positive cache size: 1809, Positive conditional cache size: 1809, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.0ms, 140 PlacesBefore, 140 PlacesAfterwards, 83 TransitionsBefore, 83 TransitionsAfterwards, 4320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1809, Positive cache size: 1809, Positive conditional cache size: 1809, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2085.6ms, 144 PlacesBefore, 144 PlacesAfterwards, 87 TransitionsBefore, 87 TransitionsAfterwards, 4760 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 1946 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 1721, positive: 1721, positive conditional: 0, positive unconditional: 1721, 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: 1946, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1946, Positive cache size: 1946, Positive conditional cache size: 1946, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.7ms, 145 PlacesBefore, 145 PlacesAfterwards, 86 TransitionsBefore, 86 TransitionsAfterwards, 4648 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1946, Positive cache size: 1946, Positive conditional cache size: 1946, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2245.1ms, 149 PlacesBefore, 149 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 5104 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 29 TotalNumberOfCompositions, 2088 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 1923, positive: 1923, positive conditional: 0, positive unconditional: 1923, 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: 2088, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2088, Positive cache size: 2088, Positive conditional cache size: 2088, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.8ms, 150 PlacesBefore, 150 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 4988 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2088, Positive cache size: 2088, Positive conditional cache size: 2088, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2411.1ms, 154 PlacesBefore, 154 PlacesAfterwards, 93 TransitionsBefore, 93 TransitionsAfterwards, 5460 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 30 TotalNumberOfCompositions, 2235 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 2066, positive: 2066, positive conditional: 0, positive unconditional: 2066, 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: 2235, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2235, Positive cache size: 2235, Positive conditional cache size: 2235, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.1ms, 155 PlacesBefore, 155 PlacesAfterwards, 92 TransitionsBefore, 92 TransitionsAfterwards, 5340 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2235, Positive cache size: 2235, Positive conditional cache size: 2235, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2733.9ms, 159 PlacesBefore, 159 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 5828 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 31 TotalNumberOfCompositions, 2387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 2349, positive: 2349, positive conditional: 0, positive unconditional: 2349, 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: 2387, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2387, Positive cache size: 2387, Positive conditional cache size: 2387, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.2ms, 160 PlacesBefore, 160 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 5704 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2387, Positive cache size: 2387, Positive conditional cache size: 2387, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2793.2ms, 164 PlacesBefore, 164 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 6208 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 32 TotalNumberOfCompositions, 2544 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 2412, positive: 2412, positive conditional: 0, positive unconditional: 2412, 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: 2544, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2544, Positive cache size: 2544, Positive conditional cache size: 2544, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.4ms, 165 PlacesBefore, 165 PlacesAfterwards, 98 TransitionsBefore, 98 TransitionsAfterwards, 6080 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2544, Positive cache size: 2544, Positive conditional cache size: 2544, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2994.3ms, 169 PlacesBefore, 169 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 6600 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 33 TotalNumberOfCompositions, 2706 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 2598, positive: 2598, positive conditional: 0, positive unconditional: 2598, 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: 2706, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2706, Positive cache size: 2706, Positive conditional cache size: 2706, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.0ms, 170 PlacesBefore, 170 PlacesAfterwards, 101 TransitionsBefore, 101 TransitionsAfterwards, 6468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2706, Positive cache size: 2706, Positive conditional cache size: 2706, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3218.8ms, 174 PlacesBefore, 174 PlacesAfterwards, 105 TransitionsBefore, 105 TransitionsAfterwards, 7004 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 34 TotalNumberOfCompositions, 2873 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 2801, positive: 2801, positive conditional: 0, positive unconditional: 2801, 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: 2873, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2873, Positive cache size: 2873, Positive conditional cache size: 2873, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.7ms, 175 PlacesBefore, 175 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 6868 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2873, Positive cache size: 2873, Positive conditional cache size: 2873, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3562.1ms, 179 PlacesBefore, 179 PlacesAfterwards, 108 TransitionsBefore, 108 TransitionsAfterwards, 7420 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 35 TotalNumberOfCompositions, 3045 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 3115, positive: 3115, positive conditional: 0, positive unconditional: 3115, 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: 3045, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3045, Positive cache size: 3045, Positive conditional cache size: 3045, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.8ms, 180 PlacesBefore, 180 PlacesAfterwards, 107 TransitionsBefore, 107 TransitionsAfterwards, 7280 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3045, Positive cache size: 3045, Positive conditional cache size: 3045, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3624.2ms, 184 PlacesBefore, 184 PlacesAfterwards, 111 TransitionsBefore, 111 TransitionsAfterwards, 7848 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 36 TotalNumberOfCompositions, 3222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 3171, positive: 3171, positive conditional: 0, positive unconditional: 3171, 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: 3222, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3222, Positive cache size: 3222, Positive conditional cache size: 3222, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.0ms, 185 PlacesBefore, 185 PlacesAfterwards, 110 TransitionsBefore, 110 TransitionsAfterwards, 7704 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3222, Positive cache size: 3222, Positive conditional cache size: 3222, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3854.6ms, 189 PlacesBefore, 189 PlacesAfterwards, 114 TransitionsBefore, 114 TransitionsAfterwards, 8288 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 37 TotalNumberOfCompositions, 3404 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 3280, positive: 3280, positive conditional: 0, positive unconditional: 3280, 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: 3404, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3404, Positive cache size: 3404, Positive conditional cache size: 3404, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.2ms, 190 PlacesBefore, 190 PlacesAfterwards, 113 TransitionsBefore, 113 TransitionsAfterwards, 8140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3404, Positive cache size: 3404, Positive conditional cache size: 3404, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3990.4ms, 194 PlacesBefore, 194 PlacesAfterwards, 117 TransitionsBefore, 117 TransitionsAfterwards, 8740 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 38 TotalNumberOfCompositions, 3591 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 3491, positive: 3491, positive conditional: 0, positive unconditional: 3491, 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: 3591, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3591, Positive cache size: 3591, Positive conditional cache size: 3591, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.4ms, 195 PlacesBefore, 195 PlacesAfterwards, 116 TransitionsBefore, 116 TransitionsAfterwards, 8588 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3591, Positive cache size: 3591, Positive conditional cache size: 3591, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4241.1ms, 199 PlacesBefore, 199 PlacesAfterwards, 120 TransitionsBefore, 120 TransitionsAfterwards, 9204 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 39 TotalNumberOfCompositions, 3783 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 3730, positive: 3730, positive conditional: 0, positive unconditional: 3730, 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: 3783, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3783, Positive cache size: 3783, Positive conditional cache size: 3783, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.5ms, 200 PlacesBefore, 200 PlacesAfterwards, 119 TransitionsBefore, 119 TransitionsAfterwards, 9048 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3783, Positive cache size: 3783, Positive conditional cache size: 3783, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4818.3ms, 204 PlacesBefore, 204 PlacesAfterwards, 123 TransitionsBefore, 123 TransitionsAfterwards, 9680 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 3980 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 4264, positive: 4264, positive conditional: 0, positive unconditional: 4264, 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: 3980, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3980, Positive cache size: 3980, Positive conditional cache size: 3980, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.4ms, 205 PlacesBefore, 205 PlacesAfterwards, 122 TransitionsBefore, 122 TransitionsAfterwards, 9520 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3980, Positive cache size: 3980, Positive conditional cache size: 3980, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4892.9ms, 209 PlacesBefore, 209 PlacesAfterwards, 126 TransitionsBefore, 126 TransitionsAfterwards, 10168 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 4182 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 4333, positive: 4333, positive conditional: 0, positive unconditional: 4333, 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: 4182, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4182, Positive cache size: 4182, Positive conditional cache size: 4182, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.0ms, 210 PlacesBefore, 210 PlacesAfterwards, 125 TransitionsBefore, 125 TransitionsAfterwards, 10004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4182, Positive cache size: 4182, Positive conditional cache size: 4182, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5115.1ms, 214 PlacesBefore, 214 PlacesAfterwards, 129 TransitionsBefore, 129 TransitionsAfterwards, 10668 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 42 TotalNumberOfCompositions, 4389 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 4524, positive: 4524, positive conditional: 0, positive unconditional: 4524, 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: 4389, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4389, Positive cache size: 4389, Positive conditional cache size: 4389, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.3ms, 215 PlacesBefore, 215 PlacesAfterwards, 128 TransitionsBefore, 128 TransitionsAfterwards, 10500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4389, Positive cache size: 4389, Positive conditional cache size: 4389, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5616.2ms, 219 PlacesBefore, 219 PlacesAfterwards, 132 TransitionsBefore, 132 TransitionsAfterwards, 11180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 4601 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 4981, positive: 4981, positive conditional: 0, positive unconditional: 4981, 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: 4601, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4601, Positive cache size: 4601, Positive conditional cache size: 4601, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.9ms, 220 PlacesBefore, 220 PlacesAfterwards, 131 TransitionsBefore, 131 TransitionsAfterwards, 11008 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4601, Positive cache size: 4601, Positive conditional cache size: 4601, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6161.7ms, 224 PlacesBefore, 224 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 11704 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 4818 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 5498, positive: 5498, positive conditional: 0, positive unconditional: 5498, 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: 4818, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4818, Positive cache size: 4818, Positive conditional cache size: 4818, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.0ms, 225 PlacesBefore, 225 PlacesAfterwards, 134 TransitionsBefore, 134 TransitionsAfterwards, 11528 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4818, Positive cache size: 4818, Positive conditional cache size: 4818, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6150.4ms, 229 PlacesBefore, 229 PlacesAfterwards, 138 TransitionsBefore, 138 TransitionsAfterwards, 12240 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, 5040 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 5470, positive: 5470, positive conditional: 0, positive unconditional: 5470, 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: 5040, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5040, Positive cache size: 5040, Positive conditional cache size: 5040, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.7ms, 230 PlacesBefore, 230 PlacesAfterwards, 137 TransitionsBefore, 137 TransitionsAfterwards, 12060 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5040, Positive cache size: 5040, Positive conditional cache size: 5040, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6379.0ms, 234 PlacesBefore, 234 PlacesAfterwards, 141 TransitionsBefore, 141 TransitionsAfterwards, 12788 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 5267 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 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] ], Cache Queries: [ total: 5267, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5267, unknown conditional: 5267, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5267, Positive cache size: 5267, Positive conditional cache size: 5267, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.4ms, 235 PlacesBefore, 235 PlacesAfterwards, 140 TransitionsBefore, 140 TransitionsAfterwards, 12604 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5267, Positive cache size: 5267, Positive conditional cache size: 5267, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6576.4ms, 239 PlacesBefore, 239 PlacesAfterwards, 144 TransitionsBefore, 144 TransitionsAfterwards, 13348 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 47 TotalNumberOfCompositions, 5499 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 5717, positive: 5717, positive conditional: 0, positive unconditional: 5717, 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: 5499, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5499, Positive cache size: 5499, Positive conditional cache size: 5499, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.2ms, 240 PlacesBefore, 240 PlacesAfterwards, 143 TransitionsBefore, 143 TransitionsAfterwards, 13160 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5499, Positive cache size: 5499, Positive conditional cache size: 5499, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7260.7ms, 244 PlacesBefore, 244 PlacesAfterwards, 147 TransitionsBefore, 147 TransitionsAfterwards, 13920 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, 5736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 6488, positive: 6488, positive conditional: 0, positive unconditional: 6488, 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: 5736, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5736, Positive cache size: 5736, Positive conditional cache size: 5736, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.0ms, 245 PlacesBefore, 245 PlacesAfterwards, 146 TransitionsBefore, 146 TransitionsAfterwards, 13728 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5736, Positive cache size: 5736, Positive conditional cache size: 5736, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7366.2ms, 249 PlacesBefore, 249 PlacesAfterwards, 150 TransitionsBefore, 150 TransitionsAfterwards, 14504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 49 TotalNumberOfCompositions, 5978 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 6600, positive: 6600, positive conditional: 0, positive unconditional: 6600, 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: 5978, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5978, Positive cache size: 5978, Positive conditional cache size: 5978, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.2ms, 250 PlacesBefore, 250 PlacesAfterwards, 149 TransitionsBefore, 149 TransitionsAfterwards, 14308 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5978, Positive cache size: 5978, Positive conditional cache size: 5978, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7728.4ms, 254 PlacesBefore, 254 PlacesAfterwards, 153 TransitionsBefore, 153 TransitionsAfterwards, 15100 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 6225 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 6913, positive: 6913, positive conditional: 0, positive unconditional: 6913, 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: 6225, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6225, Positive cache size: 6225, Positive conditional cache size: 6225, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.9ms, 255 PlacesBefore, 255 PlacesAfterwards, 152 TransitionsBefore, 152 TransitionsAfterwards, 14900 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6225, Positive cache size: 6225, Positive conditional cache size: 6225, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8800.4ms, 259 PlacesBefore, 259 PlacesAfterwards, 156 TransitionsBefore, 156 TransitionsAfterwards, 15708 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 51 TotalNumberOfCompositions, 6477 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 7789, positive: 7789, positive conditional: 0, positive unconditional: 7789, 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: 6477, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6477, Positive cache size: 6477, Positive conditional cache size: 6477, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.9ms, 260 PlacesBefore, 260 PlacesAfterwards, 155 TransitionsBefore, 155 TransitionsAfterwards, 15504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6477, Positive cache size: 6477, Positive conditional cache size: 6477, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8683.1ms, 264 PlacesBefore, 264 PlacesAfterwards, 159 TransitionsBefore, 159 TransitionsAfterwards, 16328 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 6734 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 7777, positive: 7777, positive conditional: 0, positive unconditional: 7777, 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: 6734, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6734, Positive cache size: 6734, Positive conditional cache size: 6734, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.4ms, 265 PlacesBefore, 265 PlacesAfterwards, 158 TransitionsBefore, 158 TransitionsAfterwards, 16120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6734, Positive cache size: 6734, Positive conditional cache size: 6734, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9433.9ms, 269 PlacesBefore, 269 PlacesAfterwards, 162 TransitionsBefore, 162 TransitionsAfterwards, 16960 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, 6996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 8407, positive: 8407, positive conditional: 0, positive unconditional: 8407, 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: 6996, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6996, Positive cache size: 6996, Positive conditional cache size: 6996, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.0ms, 270 PlacesBefore, 270 PlacesAfterwards, 161 TransitionsBefore, 161 TransitionsAfterwards, 16748 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6996, Positive cache size: 6996, Positive conditional cache size: 6996, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9675.0ms, 274 PlacesBefore, 274 PlacesAfterwards, 165 TransitionsBefore, 165 TransitionsAfterwards, 17604 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 7263 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 8672, positive: 8672, positive conditional: 0, positive unconditional: 8672, 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: 7263, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7263, Positive cache size: 7263, Positive conditional cache size: 7263, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.5ms, 275 PlacesBefore, 275 PlacesAfterwards, 164 TransitionsBefore, 164 TransitionsAfterwards, 17388 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7263, Positive cache size: 7263, Positive conditional cache size: 7263, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10075.0ms, 279 PlacesBefore, 279 PlacesAfterwards, 168 TransitionsBefore, 168 TransitionsAfterwards, 18260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 55 TotalNumberOfCompositions, 7535 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 9095, positive: 9095, positive conditional: 0, positive unconditional: 9095, 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: 7535, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7535, Positive cache size: 7535, Positive conditional cache size: 7535, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.0ms, 280 PlacesBefore, 280 PlacesAfterwards, 167 TransitionsBefore, 167 TransitionsAfterwards, 18040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7535, Positive cache size: 7535, Positive conditional cache size: 7535, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10894.4ms, 284 PlacesBefore, 284 PlacesAfterwards, 171 TransitionsBefore, 171 TransitionsAfterwards, 18928 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 56 TotalNumberOfCompositions, 7812 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 9848, positive: 9848, positive conditional: 0, positive unconditional: 9848, 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: 7812, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7812, Positive cache size: 7812, Positive conditional cache size: 7812, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.4ms, 285 PlacesBefore, 285 PlacesAfterwards, 170 TransitionsBefore, 170 TransitionsAfterwards, 18704 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7812, Positive cache size: 7812, Positive conditional cache size: 7812, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11256.7ms, 289 PlacesBefore, 289 PlacesAfterwards, 174 TransitionsBefore, 174 TransitionsAfterwards, 19608 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 57 TotalNumberOfCompositions, 8094 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 10172, positive: 10172, positive conditional: 0, positive unconditional: 10172, 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: 8094, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8094, Positive cache size: 8094, Positive conditional cache size: 8094, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.7ms, 290 PlacesBefore, 290 PlacesAfterwards, 173 TransitionsBefore, 173 TransitionsAfterwards, 19380 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8094, Positive cache size: 8094, Positive conditional cache size: 8094, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12127.7ms, 294 PlacesBefore, 294 PlacesAfterwards, 177 TransitionsBefore, 177 TransitionsAfterwards, 20300 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 8381 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 10893, positive: 10893, positive conditional: 0, positive unconditional: 10893, 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: 8381, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8381, Positive cache size: 8381, Positive conditional cache size: 8381, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 82.4ms, 295 PlacesBefore, 295 PlacesAfterwards, 176 TransitionsBefore, 176 TransitionsAfterwards, 20068 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8381, Positive cache size: 8381, Positive conditional cache size: 8381, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12947.2ms, 299 PlacesBefore, 299 PlacesAfterwards, 180 TransitionsBefore, 180 TransitionsAfterwards, 21004 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 8673 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 11755, positive: 11755, positive conditional: 0, positive unconditional: 11755, 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: 8673, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8673, Positive cache size: 8673, Positive conditional cache size: 8673, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52.8ms, 300 PlacesBefore, 300 PlacesAfterwards, 179 TransitionsBefore, 179 TransitionsAfterwards, 20768 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8673, Positive cache size: 8673, Positive conditional cache size: 8673, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13590.8ms, 304 PlacesBefore, 304 PlacesAfterwards, 183 TransitionsBefore, 183 TransitionsAfterwards, 21720 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 60 TotalNumberOfCompositions, 8970 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 12312, positive: 12312, positive conditional: 0, positive unconditional: 12312, 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: 8970, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8970, Positive cache size: 8970, Positive conditional cache size: 8970, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.8ms, 305 PlacesBefore, 305 PlacesAfterwards, 182 TransitionsBefore, 182 TransitionsAfterwards, 21480 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8970, Positive cache size: 8970, Positive conditional cache size: 8970, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14663.8ms, 309 PlacesBefore, 309 PlacesAfterwards, 186 TransitionsBefore, 186 TransitionsAfterwards, 22448 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 61 TotalNumberOfCompositions, 9272 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 13303, positive: 13303, positive conditional: 0, positive unconditional: 13303, 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: 9272, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9272, Positive cache size: 9272, Positive conditional cache size: 9272, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.8ms, 310 PlacesBefore, 310 PlacesAfterwards, 185 TransitionsBefore, 185 TransitionsAfterwards, 22204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9272, Positive cache size: 9272, Positive conditional cache size: 9272, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15404.1ms, 314 PlacesBefore, 314 PlacesAfterwards, 189 TransitionsBefore, 189 TransitionsAfterwards, 23188 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 62 TotalNumberOfCompositions, 9579 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 13964, positive: 13964, positive conditional: 0, positive unconditional: 13964, 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: 9579, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9579, Positive cache size: 9579, Positive conditional cache size: 9579, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.8ms, 315 PlacesBefore, 315 PlacesAfterwards, 188 TransitionsBefore, 188 TransitionsAfterwards, 22940 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9579, Positive cache size: 9579, Positive conditional cache size: 9579, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16157.1ms, 319 PlacesBefore, 319 PlacesAfterwards, 192 TransitionsBefore, 192 TransitionsAfterwards, 23940 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 63 TotalNumberOfCompositions, 9891 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 14726, positive: 14726, positive conditional: 0, positive unconditional: 14726, 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: 9891, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9891, Positive cache size: 9891, Positive conditional cache size: 9891, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.5ms, 320 PlacesBefore, 320 PlacesAfterwards, 191 TransitionsBefore, 191 TransitionsAfterwards, 23688 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9891, Positive cache size: 9891, Positive conditional cache size: 9891, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16998.7ms, 324 PlacesBefore, 324 PlacesAfterwards, 195 TransitionsBefore, 195 TransitionsAfterwards, 24704 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 64 TotalNumberOfCompositions, 10208 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 15471, positive: 15471, positive conditional: 0, positive unconditional: 15471, 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: 10208, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10208, Positive cache size: 10208, Positive conditional cache size: 10208, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 67.8ms, 325 PlacesBefore, 325 PlacesAfterwards, 194 TransitionsBefore, 194 TransitionsAfterwards, 24448 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10208, Positive cache size: 10208, Positive conditional cache size: 10208, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17715.5ms, 329 PlacesBefore, 329 PlacesAfterwards, 198 TransitionsBefore, 198 TransitionsAfterwards, 25480 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 65 TotalNumberOfCompositions, 10530 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 16081, positive: 16081, positive conditional: 0, positive unconditional: 16081, 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: 10530, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10530, Positive cache size: 10530, Positive conditional cache size: 10530, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.4ms, 330 PlacesBefore, 330 PlacesAfterwards, 197 TransitionsBefore, 197 TransitionsAfterwards, 25220 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10530, Positive cache size: 10530, Positive conditional cache size: 10530, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19328.7ms, 334 PlacesBefore, 334 PlacesAfterwards, 201 TransitionsBefore, 201 TransitionsAfterwards, 26268 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 66 TotalNumberOfCompositions, 10857 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 17584, positive: 17584, positive conditional: 0, positive unconditional: 17584, 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: 10857, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10857, Positive cache size: 10857, Positive conditional cache size: 10857, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 214.3ms, 335 PlacesBefore, 335 PlacesAfterwards, 200 TransitionsBefore, 200 TransitionsAfterwards, 26004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10857, Positive cache size: 10857, Positive conditional cache size: 10857, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20001.9ms, 339 PlacesBefore, 339 PlacesAfterwards, 204 TransitionsBefore, 204 TransitionsAfterwards, 27068 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 67 TotalNumberOfCompositions, 11189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 18183, positive: 18183, positive conditional: 0, positive unconditional: 18183, 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: 11189, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11189, Positive cache size: 11189, Positive conditional cache size: 11189, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65.3ms, 340 PlacesBefore, 340 PlacesAfterwards, 203 TransitionsBefore, 203 TransitionsAfterwards, 26800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11189, Positive cache size: 11189, Positive conditional cache size: 11189, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21250.4ms, 344 PlacesBefore, 344 PlacesAfterwards, 207 TransitionsBefore, 207 TransitionsAfterwards, 27880 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 68 TotalNumberOfCompositions, 11526 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 19358, positive: 19358, positive conditional: 0, positive unconditional: 19358, 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: 11526, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11526, Positive cache size: 11526, Positive conditional cache size: 11526, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80.8ms, 345 PlacesBefore, 345 PlacesAfterwards, 206 TransitionsBefore, 206 TransitionsAfterwards, 27608 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11526, Positive cache size: 11526, Positive conditional cache size: 11526, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22313.5ms, 349 PlacesBefore, 349 PlacesAfterwards, 210 TransitionsBefore, 210 TransitionsAfterwards, 28704 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 69 TotalNumberOfCompositions, 11868 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 20268, positive: 20268, positive conditional: 0, positive unconditional: 20268, 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: 11868, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11868, Positive cache size: 11868, Positive conditional cache size: 11868, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 109.1ms, 350 PlacesBefore, 350 PlacesAfterwards, 209 TransitionsBefore, 209 TransitionsAfterwards, 28428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11868, Positive cache size: 11868, Positive conditional cache size: 11868, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23468.4ms, 354 PlacesBefore, 354 PlacesAfterwards, 213 TransitionsBefore, 213 TransitionsAfterwards, 29540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 70 TotalNumberOfCompositions, 12215 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 21399, positive: 21399, positive conditional: 0, positive unconditional: 21399, 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: 12215, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12215, Positive cache size: 12215, Positive conditional cache size: 12215, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.8ms, 355 PlacesBefore, 355 PlacesAfterwards, 212 TransitionsBefore, 212 TransitionsAfterwards, 29260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12215, Positive cache size: 12215, Positive conditional cache size: 12215, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24579.9ms, 359 PlacesBefore, 359 PlacesAfterwards, 216 TransitionsBefore, 216 TransitionsAfterwards, 30388 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 71 TotalNumberOfCompositions, 12567 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 22301, positive: 22301, positive conditional: 0, positive unconditional: 22301, 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: 12567, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12567, Positive cache size: 12567, Positive conditional cache size: 12567, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.2ms, 360 PlacesBefore, 360 PlacesAfterwards, 215 TransitionsBefore, 215 TransitionsAfterwards, 30104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12567, Positive cache size: 12567, Positive conditional cache size: 12567, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25980.0ms, 364 PlacesBefore, 364 PlacesAfterwards, 219 TransitionsBefore, 219 TransitionsAfterwards, 31248 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 72 TotalNumberOfCompositions, 12924 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 23521, positive: 23521, positive conditional: 0, positive unconditional: 23521, 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: 12924, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12924, Positive cache size: 12924, Positive conditional cache size: 12924, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.8ms, 365 PlacesBefore, 365 PlacesAfterwards, 218 TransitionsBefore, 218 TransitionsAfterwards, 30960 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12924, Positive cache size: 12924, Positive conditional cache size: 12924, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27260.5ms, 369 PlacesBefore, 369 PlacesAfterwards, 222 TransitionsBefore, 222 TransitionsAfterwards, 32120 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 73 TotalNumberOfCompositions, 13286 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 24572, positive: 24572, positive conditional: 0, positive unconditional: 24572, 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: 13286, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13286, Positive cache size: 13286, Positive conditional cache size: 13286, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.7ms, 370 PlacesBefore, 370 PlacesAfterwards, 221 TransitionsBefore, 221 TransitionsAfterwards, 31828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13286, Positive cache size: 13286, Positive conditional cache size: 13286, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28240.3ms, 374 PlacesBefore, 374 PlacesAfterwards, 225 TransitionsBefore, 225 TransitionsAfterwards, 33004 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, 13653 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 25731, positive: 25731, positive conditional: 0, positive unconditional: 25731, 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: 13653, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13653, Positive cache size: 13653, Positive conditional cache size: 13653, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.0ms, 375 PlacesBefore, 375 PlacesAfterwards, 224 TransitionsBefore, 224 TransitionsAfterwards, 32708 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13653, Positive cache size: 13653, Positive conditional cache size: 13653, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29627.4ms, 379 PlacesBefore, 379 PlacesAfterwards, 228 TransitionsBefore, 228 TransitionsAfterwards, 33900 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 75 TotalNumberOfCompositions, 14025 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 27011, positive: 27011, positive conditional: 0, positive unconditional: 27011, 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: 14025, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14025, Positive cache size: 14025, Positive conditional cache size: 14025, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.7ms, 380 PlacesBefore, 380 PlacesAfterwards, 227 TransitionsBefore, 227 TransitionsAfterwards, 33600 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14025, Positive cache size: 14025, Positive conditional cache size: 14025, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31502.4ms, 384 PlacesBefore, 384 PlacesAfterwards, 231 TransitionsBefore, 231 TransitionsAfterwards, 34808 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 76 TotalNumberOfCompositions, 14402 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 28653, positive: 28653, positive conditional: 0, positive unconditional: 28653, 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: 14402, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14402, Positive cache size: 14402, Positive conditional cache size: 14402, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85.1ms, 385 PlacesBefore, 385 PlacesAfterwards, 230 TransitionsBefore, 230 TransitionsAfterwards, 34504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14402, Positive cache size: 14402, Positive conditional cache size: 14402, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33003.0ms, 389 PlacesBefore, 389 PlacesAfterwards, 234 TransitionsBefore, 234 TransitionsAfterwards, 35728 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 14784 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 30079, positive: 30079, positive conditional: 0, positive unconditional: 30079, 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: 14784, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14784, Positive cache size: 14784, Positive conditional cache size: 14784, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.8ms, 390 PlacesBefore, 390 PlacesAfterwards, 233 TransitionsBefore, 233 TransitionsAfterwards, 35420 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14784, Positive cache size: 14784, Positive conditional cache size: 14784, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34862.2ms, 394 PlacesBefore, 394 PlacesAfterwards, 237 TransitionsBefore, 237 TransitionsAfterwards, 36660 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 78 TotalNumberOfCompositions, 15171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 31715, positive: 31715, positive conditional: 0, positive unconditional: 31715, 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: 15171, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15171, Positive cache size: 15171, Positive conditional cache size: 15171, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 147.1ms, 395 PlacesBefore, 395 PlacesAfterwards, 236 TransitionsBefore, 236 TransitionsAfterwards, 36348 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15171, Positive cache size: 15171, Positive conditional cache size: 15171, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36251.3ms, 399 PlacesBefore, 399 PlacesAfterwards, 240 TransitionsBefore, 240 TransitionsAfterwards, 37604 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 79 TotalNumberOfCompositions, 15563 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 33134, positive: 33134, positive conditional: 0, positive unconditional: 33134, 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: 15563, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15563, Positive cache size: 15563, Positive conditional cache size: 15563, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.6ms, 400 PlacesBefore, 400 PlacesAfterwards, 239 TransitionsBefore, 239 TransitionsAfterwards, 37288 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15563, Positive cache size: 15563, Positive conditional cache size: 15563, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38444.4ms, 404 PlacesBefore, 404 PlacesAfterwards, 243 TransitionsBefore, 243 TransitionsAfterwards, 38560 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 80 TotalNumberOfCompositions, 15960 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 35045, positive: 35045, positive conditional: 0, positive unconditional: 35045, 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: 15960, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15960, Positive cache size: 15960, Positive conditional cache size: 15960, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 390.6ms, 405 PlacesBefore, 405 PlacesAfterwards, 242 TransitionsBefore, 242 TransitionsAfterwards, 38240 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15960, Positive cache size: 15960, Positive conditional cache size: 15960, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 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 409 places, 246 transitions, 7377 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 409 places, 246 transitions, 7377 flow and 39528 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 81 CEGAR loops. EmptinessCheckTime: 85.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 781409.0ms, OverallIterations: 160, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 10411.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 762611.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 80 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 328.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7206occurred in iteration=0, InterpolantAutomatonStates: 240, 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: 96.6ms SsaConstructionTime, 280.3ms SatisfiabilityAnalysisTime, 687.3ms InterpolantComputationTime, 3560 NumberOfCodeBlocks, 3560 NumberOfCodeBlocksAsserted, 160 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 80 InterpolantComputations, 80 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